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User's Guide, Agilent PSG Family Signal Generators

1. E E E o 1 AC Power Receptacle The line voltage is connected here The power cord receptacle accepts a three pronged power cable that is shipped with the signal generator 2 GPIB The GPIB interface allows listen and talk capability with compatible IEEE 488 2 devices Chapter 1 15 Signal Generator Overview Rear Panel 3 AUXILIARY INTERFACE This male DB 9 connector is an RS 232 serial port that can be used for controlling the signal generator remotel y 4 10 MHz IN This BNC connector accepts an external timebase reference input signal level of greater than 3 dBm The reference must be 1 2 2 5 5 or 10 MHz within 1 ppm The signal generator detects when a valid reference signal is present at this connector and automatically switches from internal to external reference operation The nominal input impedance is 500 For Option UNJ this BNC connector accepts a signal with a nominal input level of 5 5 dBm The external frequency reference must be 10 MHz within 1 ppm The nominal input impedance is 50Q with a damage level of gt 10 dBm 5 LAN The LAN interface allows ethernet local area network communication through a 10 base T LAN cable The yellow LED on the interface illuminates when data transmission transfer receive is present The green LED illuminates when there is a delay in data transmission or no data transmission is present 6 10 MHz OUT This BNC connector output
2. Contents O ect Dn SPs ee ee ante ep ee a nc fe eo eta hdl senha dt 106 o ee eer eee eres eee eee eT eee eae ee cree Tare ee eee ware ee a 106 Abort Callie teeedrGandeeedy sues reeks AA ROH HE REE 106 Add Comment To Seda REQ i160 seas een bene ae ie as hare keene aa es 106 Adjust PHASE si ccudeeeede pipes ee ete dyed nets RIA CHE EEE Ee Fede eee 107 PCR clone thee Puen Ghee ie A Bee eR AA 107 AA aa EA i eee 108 A i be Seni te ah eee ie tae eo etn Si a Slt i Se eth Son ta to 108 Al ars hath Ula oe a A A la a 108 AM DOR 2 ieee ciGeedGwedlGued pele a A TES ALOR EOS 109 AM Depth Couple ON OM esas ta ee dhs tii 109 AM Mode a A hl cee eta MPU REE Phat RAe ed ERA 109 AMO Oat itt in tebe a ae 110 AN Path 2 sarna ari sen oma Weekes Oke Rann sama Skew 110 AM Role isis riadas ira e peel ey keen das AE eee aa 111 A io 6a cp iaw E 111 AM Start RatGias casei reen tQeer re ea sd RR Re BREN TOLL RRe a Tew ea DERE 112 AM STS ke test tsp cen aa stot ese er enn ce ae ina th i i es i i ne 112 AN BOO Rete ies tees dbase can dhh ROSE sar A E AA a ae guldys 112 AM Seep TIRE rs A AA AAN es 113 AM Tone DAA air a 113 AM Tone 2 Ampl Percent Of Peak oooocococcocnn nnana 113 A e A RE Re TERRES doe 114 AN TROL EXP oso e Se Mae DGA 114 A 8 ea he eg Nae ea ih ed i ioe is eda it ese 114 E 115 AVG BE An oh OE SOLE LGRE POLE DIOES HES EDI OH ETS 115 AmA Re OM Ol sists hitters tat do s 6 badd dated aden 116 Ampl Ref S bo cio cc debe des Sew EMRE AGES RRA TE E
3. Refer to the mm wave source module specifications for the specific frequency and amplitude ranges 2 Configure the signal generator to interface with the power meter a Press Amplitude gt More 1 of 2 gt User Flatness gt More 1 of 2 gt Power Meter gt E4416A E4417A E4418B or E4419B Press Meter Address gt enter the power meter s GPIB address gt Enter For E4417A and E4419B models press Meter Channel A B to select the power meter s active channel Press Meter Timeout to adjust the length of time before the instrument generates a timeout error if unsuccessfully attempting to communicate with the power meter 3 Press More 2 of 2 gt Configure Cal Array gt More 1 of 2 gt Preset List gt Confirm Preset This opens the User Flatness table editor and resets the cal array frequency correction list Press Configure Step Array This opens a menu for entering the user flatness step array data 5 Press Freq Start gt 26 5 gt GHz 6 Press Freq Stop gt 40 gt GHz 70 Chapter 3 9 Optimizing Performance Creating and Applying User Flatness Correction Press of Points gt 28 gt Enter This enters the desired flatness corrected frequencies 26 5 GHz to 40 GHz in 500 MHz intervals into the step array Press Return gt Load Cal Array From Step Array gt Confirm Load From Step Sweep This populates the user flatness correction array with the frequency settings defined in
4. 152 Chapter 5 Key Reference F Freq Offset Supported All This softkey enables you to set a value for frequency offset For example if the current output frequency is 1 0 MHz and you enter a frequency offset of 3 0 MHz the output frequency will remain at 1 0 MHz but the display will show a frequency of 4 0 MHz This feature enables you to simulate the frequency at the output of a frequency translating device When an offset has been entered the OFFSET indicator is turned on in the frequency area of the display Preset 0 00 Hz Range 20 GHz Models OHZ 20GHZ 40 GHz Models OHZ 40GHZ Location Page 239 Remarks A frequency offset can be entered at any time during normal operation and also when you are operating in frequency reference mode When and offset has been entered the or Fs indicator is turned on in the frequency area of the display A frequency offset changes the value shown in the frequency area of the display but does not affect the output frequency Freq Ref Off On Supported All This softkey toggles the operating state of the frequency reference mode When frequency reference mode is turned on the frequency value displayed is equal to the current hardware output frequency minus the reference value set by the Freq Ref Set softkey All frequency parameters will now be set as relative to the reference value Frequency offsets can be used with frequency reference mode In this situation the display will show the
5. 3 Usethe knob arrow keys or the numeric keypad to modify the value 4 Press Enter The modified item is now displayed in the table 50 Chapter 2 Fundamental Operation Configuring for Remote Control Configuring for Remote Control This section will show you how to configure the signal generator to interface with a remote controller For more information refer to the programming guide NOTE Front panel keys are locked when using a remote controller Only the Local key is active To unlock the front panel keypad press the Local key Configuring for a GPIB Interface 1 Press Utility gt GPIB RS 232 gt GPIB Address 2 Use the numeric keypad arrow keys or front panel knob to set the desired address 3 Press Enter The signal generator s GPIB address is set to 19 at the factory The acceptable range of addresses is 0 through 30 Each device on a GPIB bus must have a unique address However it is not advisable to use address 21 as this is often reserved as a controller talk listen address The GPIB address is not affected by a signal generator preset or by a power cycle Configuring for a LAN 10BASE T Interface 1 Obtain a hostname and IP address from your system administrator or IT department 2 Press Utility gt GPIB RS 232 LAN gt LAN Setup 3 Press Hostname Use the alphanumeric softkeys to enter a hostname F or lowercase letters use the knob 4 Press Enter 5 Press IP Address Use the le
6. DPORSTU VW KRY 2Z_S 82 CI1MB Enter Goto Top Row Goto Middle Row Goto Bottom Row Page Lp Page Down Menu Maps Utility Confirm Delete Binary User F latness More C1 of 2 Clear Text Editing Mode Mi Replace More 2 af 2 See Next Page pe927a Chapter 6 249 Menu Maps Utility Figure 6 10 Page 40f5 O i Run Complete Diagnostic Self Test Opt ions Self Test Mod Status Info Off MITE Help Mode BE Cont View Test Info Select Deselect Test Select Dese lect All View Details Run Highlighted Test Run Selected Tests Page Lip e Se Tests Page Down pe929a Sei Chapter 6 Menu Maps Utility Page 5of5 E Confirm Delete Of All Files Editing Keus Clear Text Editing Mode ABCDEFG i Feplace pe930a Chapter 6 251 Menu Maps Utility 252 Chapter 6 Symbols M annunciator 12 configuration example 38 coupling external source 139 DCM calibration 127 description 33 deviation 38 92 dual sine amplitude second tone 98 rate first tone 97 rate second tone 98 hardkey 7 143 menu map 237 multipath deviation coupling 93 selection 94 operating state 93 rate 39 94 source 33 95 swept sine start rate 95 stop rate 96 sweeps second 96 trigger 97 type normal wideband 144 waveform 99 See also waveforms function generator Numerics 10 MHz IN connector 16 OUT connector 16 10B
7. Page Down More 1 of 2 Confirm Load Confirm Freq Start From Step Sweep Preset Load Cal Array Freg Stop From Step Arrau Preset List Points More 2 of 2 ped2a Chapter 6 233 Menu Maps Amplitude Page 3 of 3 O Load From Selected File Delete File Page Up Page Down Editing Keys Clear Text Editing Mode ABCDEFG Mi Replace Enter Top RoW Goto Middle Row Goto Bottom Row Page Up Page Donn peg28a 234 Chapter 6 Menu Maps FM DM F M M Page 1 of 2 en Internal 1 FM Path Internal 2 EN 2 FM MEN on FM Dew FM Source Internal 1 FM Rate More 1 of 2 EM Llaveform Sine Uniform Sine Positive FM Dew Couple MIA On Trianole Negative Gaussian Square OCFN DOC M Cal More 2 of 2 When FMis selected nal Changes to Ext Coupling AC when FM Source gt Ext1 or Ext2 are selected MeJbeing the default selection Changes to Ext Impedance Holin 600 Ohm when FM Source gt Ext1 or Ext2 are selected Elfeimbeing the default selection pe96a Chapter 6 235 Menu Maps FM OM Page 20f2 A FH Tone 1 Rate FM Start Rate Free Run FM Tone 2 Rate FM Stop Rate Trigger Key FM Tone 2 Ampl Percent Of Peak FM Sweep Rate FM Dew FM Sweep Trigger Free Run Trigger Out Polarit Neg Peas Active when Ext is selected pe97a 236 Chapter 6 Menu Maps FM DM FM PM Page 1 of 2 FM i Int
8. Supported 2 00 usec 70 00 nsec 42 00 sec Page 242 If the value for pulse period is less than the value for pulse width pulse width is changed to be 20 us less than pulse period The pulse period applies only to Int Free Run Pulse Modulation and Int Gated PSG A Series This softkey enables you to change the pulse rate for the internal square pulse modulation Preset Range Location Remarks 400 0 Hz 100 0 mHz 10 0 MHz Page 242 The new value of pulse rate applies only to internal square pulse modulation When external pulse modulation or internal pulse modulation is selected this key is disabled 196 Chapter 5 Pulse Source Supported Key Reference P PSG A Series Use this softkey to access a menu of choices that enables you to select the pulse source for internally generated and externally applied modulation inputs Preset Choices Location Remarks Pulse Width Supported Int Free Run Int FreeRun Internal Square Ext Pulse Int Triggered Int Doublet Int Gated Page 242 None PSG A Series This softkey enables you to change the pulse width for internally generated pulse modulation source Preset Range Location Remarks 1 00 usec 10 00 nsec 41 99 sec Page 242 If the value for pulse period is less than the value for pulse width pulse width is changed to be 20 ns less than pulse period The pulse width applies only to internal pulse modulation when external pulse modulati
9. Figure 5 6 Modulation Status Information FREQUENCY AMPLITUDE 40 000 000 000 00 siz 135 00 om Be te or Pu path An MA On nodulation Status Information Nod State Depth Deu Source Waveform An Depth 0 1 an Source Internal 1 AM Rate 400 0 Hz More 1 of 2 Preset On Choices On or Off Location Page 250 Remarks None Chapter 5 185 Key Reference N N Negative Supported PSG A Series This key enables you to select a negatively sloped ramp or sawtooth as the modulation waveform for the internally generated ac coupled signal Preset N A Range N A Location Page 230 Page 235 Page 237 Page 240 Remarks None Noise Supported PSG A Series Use this softkey to access a menu that enables you to specify a noise type as the modulation waveform for the internally generated ac coupled signal Preset Uniform Choices Uniform or Gaussian Location Page 230 Page 235 Page 237 Page 240 Remarks The selected waveform applies only to the path configuration you have currently selected Noise is generated as a peak to peak value the RMS value is about 80 0 of the displayed value 186 Chapter 5 Key Reference N Numeric Keypad Supported All The numeric keypad enables you to enter both positive and negative values In addition the backspace key is used to delete and change the sign of a value These keys with the exception of the period have autorepeat capability Hold a key down and the
10. Preset N A Range N A Location Page 250 Remarks None Display Supported All Key Reference D the revision number for the signal generator s firmware the characters returned after a remote I DN query the number of hours that the signal generator has been powered on the number of hours the display has been active value does not include hours using the screen saver the number of times the line power has been switched on the number of times the attenuator has been switched Usethis softkey to access a menu for adjusting and testing the display In this menu you set up the screen saver change the display brightness and perform black and white pixel screen tests Preset N A Range N A Location Page 247 Remarks None Chapter 5 133 Key Reference D Do Cal Supported All This softkey enables you to start a flatness calibration using the information from the user flatness list sweep table Preset N A Range N A Location Page 232 Remarks None Done Supported All Use this softkey to return to the Flatness menu once the calibration routine is complete Preset N A Range N A Location Page 233 Remarks None Do Power Search Supported All Usethis softkey to execute the power search calibration routine one time Power search is an internal calibration routine used to achieve calibrated output power when the ALC is off You can execute a power search at any time by pressing this softkey Preset N A
11. Generator without Option 1EA SIGNAL GENERATOR POWER METER MICROWAVE AMPLIFIER z RF OUTPUT MM WAVE SOURCE MODULE SOURCE MODULE INTERFACE Figure 3 5 User Flatness with MM Wave Source Module and Option 1E A 68 Chapter 3 Optimizing Performance Creating and Applying User Flatness Correction Signal Generator SIGNAL SOURCE GENERATOR POWER METER MODULE SOURCE MODULE INTERFACE pe920a NOTE To ensure adequate RF amplitude at the mm wave source module RF input when using Option 1EA signal generators maximum amplitude loss through the adapters and cables connected between the signal generator s RF output and the mm wave source module s RF input should be less than 1 5 dB Chapter 3 69 Optimizing Performance Creating and Applying User Flatness Correction Configure the Signal Generator 1 Turn on the signal generator s line power Upon power up the signal generator automatically does the following senses the mm wave source module switches the signal generator s leveling mode to external source module sets the mm wave source module frequency and amplitude to the source module s preset values displays the RF output frequency and amplitude values available at the mm wave source module output The mvmop indicator in the FREQUENCY area and the mm indicator in the AMPLITUDE area of the signal generator s display indicate that the mm wave source module is active NOTE
12. Remarks None Goto Bottom Row Supported All This softkey enables you to move the selection bar to the last row in the table Preset N A Range N A Location Page 233 Page 234 Page 245 Page 246 Page 249 Remarks None Goto Middle Row Supported All This softkey enables you to move the selection bar to the middle row of the list Preset N A Range N A Location Page 233 Page 234 Page 245 Page 246 Page 249 Remarks None Chapter 5 157 Key Reference G Goto Row Supported All Use this softkey to access a menu of softkeys that enables you to move the selection bar to a specific row in the list Preset N A Range N A Location Page 233 Page 234 Page 245 Page 246 Page 249 Remarks None Goto Top Row Supported All This softkey enables you to move the selection bar to the top row in the list Preset N A Range N A Location Page 233 Page 234 Page 245 Page 246 Page 249 Remarks None GPIB Address Supported All This softkey enables you to change the signal generator s GPIB address The GPIB address is set to 19 at the factory Preset N A Range 0 30 Location Page 247 Remarks GPIB address setting is not affected by a preset or by a power cycle 158 Chapter 5 Key Reference G GPIB RS 232 LAN Supported All Use this softkey to access a menu of choices for GPIB RS 232 and LAN configuration Preset N A Range N A Location Page 247 Remarks None GPIB Listener Mode Supported A
13. Remarks This key is intended for use by service personnel Chapter 5 209 Key Reference S Select Reg Supported All Usethis softkey to select a specific register to be highlighted in the list of saved states Preset N A Range N A Location Page 244 Remarks None Select Reg Supported All This softkey enables you to select a register for all softkeys that specify a register in this menu For example if you want to select register 5 press Select Reg The currently selected register is displayed in the active entry area Changethe number to 5 and press the Select Reg terminator softkey Register 5 is now displayed in all softkeys which specify a register in this menu You can also use this softkey to select a register and save the current instrument state to that register For example if you want to select and save to register 6 press Select Reg The currently selected register is displayed in the active entry area Change the number to 6 and press the Save Reg terminator softkey Register 6 is now displayed in all softkeys which specify a register in this menu and the current instrument state has been saved to register 6 Preset 0 Range 00 99 Location Page 244 Remarks None 210 Chapter 5 Key Reference S Select Seq Supported All This softkey enables you to select a sequence for all softkeys which specify a sequence in this menu For example if you want to select sequence 4 press Select Seq The currently sele
14. Swept Sine Triangle Ramp Square Noise DC sinewave with adjustable amplitude and frequency dual sinewaves with individually adjustable frequencies anda percent of peak amplitude setting for the second tone available from function generator 1 only a swept sinewave with adjustable start and stop frequencies sweep time and sweep trigger settings available from function generator 1 only triangle wave with adjustable amplitude and frequency ramp with adjustable amplitude and frequency square wave with adjustable amplitude and frequency noise in a uniform or Gaussian distribution with adjustable amplitude generated as a peak to peak value RMS value is approximately 80 of the displayed value constant adjustable amplitude For a detailed description of the ranges and limitations of a specific waveform s parameters see that waveform s softkey description in Chapter 5 Key Reference on page 91 Chapter 2 33 Fundamental Operation Configuring Analog Modulation PSG A Series Only Pulse Sources Thefollowing list summarizes the different sources available for pulse modulation External Pulse modulates by following an external pulse signal connected to the signal generator s PULSE TRIGGER GATE INPUT connector Internal Doublet produces two pulses at the RF OUTPUT connector for each trigger event at the TRIGGER IN connector The first pulse will follow the external trigger signal The second pul
15. function is continuously executed until you release it Preset N A Range N A Remarks N A Chapter 5 187 Key Reference 0 Off Supported All Usethis softkey toturn off all sweep functions The output signal is then set according to the current frequency and amplitude settings defined by the Frequency and Amplitude hardkeys Preset N A Range N A Location Page 245 Remarks None 188 Chapter 5 Key Reference O Options Info Supported All Usethis softkey to display all available options and the associated hardware Refer to Figure 5 7 Figure 5 7 Installed Option Information FREQUENCY AMPLITUDE 40 000 000 000 00 se 135 00 a Ea Installed Options Information Option Option Revision DSP Version Option the option number Option Revision an alphabetic representation of the option revision DSP Version version number of additional DSP code used with some hardware options Preset N A Range N A Location Page 250 Remarks None Chapter 5 189 Key Reference P P Page Down Supported All This softkey enables you to move down in the display one page at a time Preset N A Range N A Location Page 233 Page 234 Page 245 Page 246 Page 249 Remarks None Page Up Supported All This softkey enables you to move up in the display one page at a time Preset N A Range N A Location Page 233 Page 234 Page 245 Page 246 Page 249 Remarks None Phase Ref Set Supported Al
16. 10 Press Step Dwell gt 500 gt msec This sets the dwell time at each point to 500 milliseconds 11 Press Return gt Sweep gt Freq 8 Ampl This sets the step sweep to sweep both frequency and amplitude data Selecting this softkey returns you to the previous menu and turns on the sweep function 12 Press RF On Off The display annunciator changes from RF OFF tO RF ON 13 Press Single Sweep A single sweep of the frequencies and amplitudes configured in the step sweep is executed and available at the RF OUTPUT connector On the display the SWEEP annunciator appears for the duration of the sweep and a progress bar shows the progression of the sweep The Single Sweep softkey can also be used to abort a sweep in progress Activating Continuous Step Sweep Press Sweep Repeat Single Cont This toggles the sweep from single to continuous A continuous repetition of the frequencies and amplitudes configured in the step sweep are now available at the RF OUTPUT connector The SWEEP annunciator appears indicating that the signal generator is sweeping and progression of the sweep is shown by a progress bar Configuring a List Sweep Using Step Sweep Data In this procedure you will leverage the step sweep points and change the sweep information by editing several points in the List Mode Values table editor For information on using table editors see Using Table Editors on page 49 1 Press Sweep Repeat Single Con
17. 212 source 217 trigger key 221 Trigger hardkey 221 troubleshooting See problems U UNLEVEL annunciator 13 UNLOCK annunciator 13 user flatness correction abort cal routine 106 applyingtotheRF output 64 array Cal 123 step 124 connection diagram 61 correction arrays automatic creation 62 description 59 manual creation 63 correction data recall from memory catalog 64 save to memory catalog 64 data Cal array load from step array 179 description 59 equipment required 60 execute cal routine 134 GPIB listener mode 65 159 mm wave source module using applying correction data 73 calibration process performing the 71 connection diagrams 68 69 description 66 equipment required 66 power meter configuration 67 recall correction data 73 save correction data 72 signal generator configuration 70 operating state 143 Index user flatness correction continued power meter address GPIB 183 channel selection 183 configuration 60 models 59 136 137 selection 191 timeout 183 preset list table values 126 194 return to flatness menu 134 signal generator configuration 61 Utility hardkey 223 menu map 247 Ww waveforms external 141 142 waveforms function generator DC 127 dual sine 135 amplitude second tone 98 113 150 177 rate first tone 97 113 150 177 rate second tone 98 114 150 178 noise 186 gaussian 157 uniform 223 ramp 198 negative 186 positive 191
18. 30 kHz Setting the RF Output Frequency 1 Press Preset 2 Press Frequency gt 20 gt GHz The FREQUENCY area of the display now reads 20 000 000 000 00 GHz Setting the RF Output Amplitude Press Amplitude gt 0 gt dBm The AMPLITUDE area of the display now reads 0 00 dBm Setting the M Deviation and Rate 1 Press the FM M hardkey 2 Press the FM PM softkey The first level menu of PM softkeys is displayed 38 Chapter 2 Fundamental Operation Configuring Analog Modulation PSG A Series Only 3 Press M Dev gt 25 gt pi rad This changes the M deviation to 0 25 x radians 4 Press M Rate gt 10 gt kHz This sets the M rate to 10 kHz The signal generator is now configured to output a O dBm phase modulated carrier at 20 GHz with a 0 25 x radian deviation and 10 kHz rate The shape of the waveform is a sinewave Notice that sine is the default for the M Waveform softkey Press More 1 of 2 to see the softkey Activating M Follow these remaining steps to output the phase modulated signal 1 Press PM Off On The dx annunciator is activated indicating that you have enabled phase modulation 2 Press RF On Off The RF ON annundiator is activated indicating that the signal is now available at the RF OUTPUT connector The signal generator is now configured to output a 0 dBm pulse modulated carrier at 18 GHz with a 100 microsecond pulse period and 24 microsecond pulse width The pulse sou
19. 800 810 0189 preferred 10800 650 0121 of China 10800 650 0021 India 1 600 11 2929 000 800 650 1101 Chapter 4 89 Solving Problems Returning a Signal Generator to Agilent Technologies 90 Chapter 4 5 Key Reference 91 Key Reference Symbols Symbols Points Supported All This softkey enables you to define the number of points in a step sweep When you press this key the current value is shown in the active entry area Preset Range Location Remarks pM Dev Supported 2 2 1601 Page 233 Page 245 None PSG A Series This softkey enables you to set the deviation of the phase modulation for the currently selected modulation path Preset Choices Ranges Location Remarks 0 000 rad pi rad rad deg Frequency Normal Bandwidth High Bandwidth 100 kHz 250 MHz 0 10 RAD 0 1 RAD gt 250 500 MHz 0 5RAD 0 0 5 RAD gt 500 MHz 1 GHz 0 10 RAD 0 1 RAD gt 1 2 GHz 0 20 RAD 0 2 RAD gt 2 3 2 GHz 0 40 RAD 0 4 RAD gt 3 2 10 GHz 0 80 RAD 0 8 RAD gt 10 20 GHz 0 160 RAD 0 16 RAD gt 20 40 GHz 0 320 RAD 0 32 RAD Page 237 Page 238 The deviation limits are dependent upon the carrier frequency This limiting occurs only when the modulation is turned on 92 Chapter 5 Key Reference Symbols M Dev Couple Supported PSG A Series This softkey toggles the operating state of the coupled deviation for phase modulation Preset Off Choices Off or On Location Page 237 Rema
20. LF Output PSG A Series Only Configuringthe LF Output PSG A Series Only The PSG A Series signal generator has a low frequency LF output The LF output s source can be switched between an internal modulation source internal monitor 1 or 2 or an internal function generator function generator 1 or 2 Using internal monitor 1 or 2 asthe LF output source the LF output provides a replica of the signal from either internal source 1 or 2 that is being used to modulatethe RF output The specific modulation parameters for this signal are configured through the AM FM or M menus Using function generator 1 or 2 as the LF output source the function generator section of the internal modulation source 1 or 2 drives the LF output directly Frequency and waveform are configured from the LF output menu not through the AM FM or M menus You can select the waveform shape from the following choices Sine sinewave with adjustable amplitude and frequency Dual Sine dual sinewaves with individually adjustable frequencies and a percent of peak amplitude setting for the second tone available from function generator 1 only Swept Sine a swept sinewave with adjustable start and stop frequencies sweep time and sweep trigger settings available from function generator 1 only Triangle triangle wave with adjustable amplitude and frequency Ramp ramp with adjustable amplitude and frequency Square square wave with adjustable amplitude and fr
21. None 130 Chapter 5 Key Reference D Delete File Supported All This softkey enables you to delete a filein the catalog listing Use the up and down arrow keys until the file you wish to delete is highlighted Press Delete File and then press the Confirm Delete softkey If you do not want to delete the file press Return instead of Confirm Delete Preset N A Range N A Location Page 234 Page 246 Page 249 Remarks None Delete Item Supported All This softkey enables you to delete an item in the displayed list Use the arrow keys until the desired item is highlighted Then press Delete Item to eliminate this item from the list If the last item in a list is deleted it is replaced by the default value Preset N A Range N A Location Page 245 Remarks You cannot recover the item after this step If you change your mind and do not wish to delete the item press the Return hardkey Delete Row Supported All This softkey enables you to delete a selected row in the list Use the up and down arrow keys until any item is selected in the row you wish to delete Press Delete Row and the entire row is deleted If the last row in a list is deleted it is replaced by the default value Preset N A Range N A Location Page 233 Page 245 Remarks You cannot recover data after this step If you change your mind and do not wish to delete the row press the Return hardkey Chapter 5 131 Key Reference D Delete Seq n Reg
22. Out Off On This activates the LF output TheLF output is a 3 Vp swept sine waveform sweeping from 100 Hz to 1 kHz with a sweep rate of 350 Hz Chapter 2 43 Fundamental Operation Using Data Storage Functions Using Data Storage Functions This section explains how to use the two forms of signal generator data storage the memory catalog and the instrument state register Using the Memory Catalog The signal generator s interface for stored files is the memory catalog From there you can view copy rename and delete files either from the signal generator s front panel or via remote controller For information on performing these tasks remotely see the programming guide The memory catalog may contain the following file types and their associated data BIN bitmap data LIST sweep data from the List Mode Values table including frequency amplitude and dwell time STAT instrument state data controlling instrument operating state parameters such as frequency amplitude and mode UFLT user flatness calibration correction pair data user defined frequency and corresponding amplitude correction values Viewing Stored Files 1 Press Utility gt Memory Catalog gt Catalog Type The default catalog type is All all files in the memory catalog are listed in alphabetical order regardless of type When viewing all files file name listings include their file type such as lt file name gt STATE Or lt file name gt
23. Out Tone 2 Ampl Of Peak to 33 then the amplitude of LF Out tone 1 will be 200 0 mV and the amplitude of LF Out tone 2 will be 100 0 mV 33 of 300 0 mV so that the amplitude of the two tones equals 300 0 mV 200 0 mV plus 100 0 mV Preset 50 0 Range 0 0 100 minimum increment is 0 1 Location Page 240 Remarks This softkey is active only when you have selected the internal source to operate as Function Generator 1 Chapter 5 177 Key Reference L LF Out Tone 2 Freq Supported PSG A Series This softkey enables you to change the alternate frequency of the internally generated modulation source The alternate frequency is the second frequency in dual sine or the stop frequency in swept sine This key is coupled to the LF Out Freq softkey in the initial LF Out menu and the LF Out Stop Freq softkey in the LF Out Swept Sine menu Preset Range Location Remarks 400 0 Hz 0 5 Hz 1 0 MHz minimum increment allowed is 0 5 Hz Page 240 This softkey is active only when you have selected the internal source to operate as Function Generator 1 LF Out Waveform Supported PSG A Series Use this softkey to access a menu of choices that enables you to select the LF output waveform for your LF function generator Preset Choices Location Remarks Sine Sine Noise Triangle Square Dual Sine Ramp Swept Sine DC Page 240 This key is active only when you have selected the internal source to operate as a funct
24. annundiator is displayed on the signal generator Perform the User Flatness Correction NOTE If you are not using an Agilent E4416A 17A 18B 19B power meter or if your 1 power meter does not have a GPIB interface you can perform the user flatness correction manually For instructions see Performing the User Flatness Correction Manually on page 63 Press More 1 of 2 gt User Flatness gt Do Cal This creates the user flatness amplitude correction value table entries The signal generator enters the user flatness correction routine and a progress bar is shown on the display 62 Chapter 3 Optimizing Performance Creating and Applying User Flatness Correction 2 When prompted press Done This loads the amplitude correction values into the user flatness correction array If desired press Configure Cal Array This opens the user flatness correction array where you can view the stored amplitude correction values The user flatness correction array title displays User Flatness UNSTORED indicating that the current user flatness correction array data has not been saved to the memory catalog Performing the User Flatness Correction Manually If you are not using an Agilent E4416A 17A 18B 19B power meter or if your power meter does not havea GPIB interface complete the steps in this section and then continue with the user flatness correction tutorial 1 Press More 1 of 2 gt User Flatness gt Configure Cal A
25. ca ned idee ganas en A Rw we we 129 Delete All SQQUCNKES 2 2 ecic deed bee be deeds oes dEr Peete onde reed AR 130 Delete Al State PGS a dicta rt rt a CA 130 Delete AU UFLT Filet 0 AA aw RRO 130 A es eeniteh ks pape n Ree Pawan eaveE 131 Delta lapices 131 a 131 Delete Sedin REG 430 aaa aa 132 Diagnostic INIO ccssdvesc een io 132 DED W aerar eyed dake hee dade tenedaa dike eh Maas 133 A des A A E soe ggasuween ee 134 viii Contents A 134 Die Power Sears 3 65 ibra timer osa dora Id EA nes 134 DUBLIN oiesisrorrrrr A A A 135 Dwell Toe LISTERS nepera it e e daa 1339 E is ae Rs ere rere re rer ee 136 ESAS ito IA AAA AA AAA A 136 ELIA sra ue ad ph mre E ee Rabon EES ETET 136 ESQUIAR vado se ei eh ces de ecb ase Se fel he he Ba leh Sly ph Spe tt a 136 EA E i nda eet ee eet ein eRe a a ey 137 Edit Comment In Seq n Reginn 0 ccc eee eee eens 137 EMI aaa Ati a dee wha din iaa daa 137 Eta Re Sas anestesia 138 Editing Mode Insert Replat cs A PRb de eee eee eS 138 EGO IMG dida a Ad ais 138 ee dra RR RA AA Tee ee ee 139 EAC CAMPING OE AE cia dal othe ld a 139 EXE DARIO us aia A RANA ADA AAA aN 140 Ext Detector Coupling FE codiciado dir a co a este 140 Ext Impedance 50 Ohm G00 ORM sas cie AA AA 140 Ext Polarity Normal vereda A d ae oe ead a2 141 BPS stot cee eed ad eee Ade eee heads 141 EM sir bees cee eee ewe deka FEUER Oe he Tee ROO ke dee ACER TERE 141 PAs acai cated eae Gee A Pea aed ren 142 External Ret Bana sed
26. corrected power refer to Creating and Applying User Flatness Correction on page 59 Leveling with a Millimeter Wave Source Module Millimeter wave source module leveling is similar to external detector leveling The power level feedback signal to the ALC circuitry is taken from the millimeter wave source module rather than the internal signal generator detector This feedback signal levels the RF output power at the mm wave source module output through the signal generator s rear panel SOURCE MODULE interface connector For instructions and setups see Using the Signal Generator with a MM Wave Source Module on page 29 58 Chapter 3 Optimizing Performance Creating and Applying User Flatness Correction Creating and Applying User Flatness Correction User flatness correction allows the digital adjustment of RF output amplitude for up to 1601 frequency points in any frequency or sweep mode Using an Agilent E4416A 17A or E4418B 19B power meter controlled by the signal generator through GPIB to calibrate the measurement system a table of power level corrections is created for frequencies where power level variations or losses occur These frequencies may be defined in sequential linear steps or arbitrarily spaced If you do not have an Agilent E4416A 17A or E4418B 19B power meter or if your power meter does not have a GPIB interface the correction values can be manually entered into the signal generator To allow dif
27. ee ew eee ceed 8 I LFOUTPUT IPIGA Oni cok ih ead eon AE EA 8 14 Mod ONO Key PSG A OY cciai anna cei ena A A OK We HRW ewe 8 TSS PU tacts ware pad de A AAA a haw oa 8 AGRE SOMO CEG ada tee hiatal an eee de wie he bon CR ee adele 8 17 UCIT US RR sw nm smite eh ei th tenn a he lM see Re she ghee a ee ss 8 DEO eremita eon eA he PoE had he EOLA pd bay Medd Pew RRR 9 19 PULSE SYNC OUT PSG A Oly cceed ee eee needs debe weed eee ee newaT es 9 20 PULSE VIDEO OUT PSG A ONIN esera ceire tendaaeedes a 9 21 LING Power LED cor o A A Ee AAA eee beet aes 9 22 POE SIN cheno lon Chinen A a Goo Eno dee a Us 9 pt LED A A 9 ZA IT SEE od a A eco pc a A 9 25 PULSE TRIGGER GATE INPUT PSG A only o ooooccccorcorasira cas 10 26 AITON KOS rara a bee eeii ieke ee Ree OS 10 Oe OOS A aes Sk 10 JE PROVE EY rr io timed nearwiacin wen A ed 10 29 Display Contrast Decrease KEY says icdde een A A A 10 30 Display Contrast ncresse Rey cc ca ee ke cade ee eae Ree 10 31 Lal KOs css kev edie key pee eae eke Pe EG eks PERE UH AAE EE A 10 Se PRS ORY ba 6454494646 e HEI a OS SSE a a sd aS 10 Contents Front Panel DS cra a E nents de a et 11 ad A dog eplahu EG A LOSK Eg AS EAA 12 2 PYSQUENOY AT econo AAA OES EH ede DEE LORE OS 12 2 DMN s14 34 4 5 600 ISAAK AR Aa hen ee Pees 12 4 AMPITUMO AAs ocsens seer anew kaaa eee AA dee eee eee eee ews 14 D Error MESSI Aroa ccc coe ROEM O E PRR Re eRe a ee eR we 14 Ss MELLA o gt Pe eee enter ee cere A AA eee er
28. frequency calculated as the current hardware output frequency minus the reference value plus the frequency offset Preset Off Choices Off or On Location Page 239 Remarks Frequency reference mode only changes the display it does not change the RF output frequency Chapter 5 153 Key Reference F Freq Ref Set Supported All Usethis softkey to set the current output frequency plus the offset frequency as the frequency reference value It also causes the Freq Ref Off On softkey to toggle to the On position turning on frequency reference mode All frequency parameters are then set as relative to the reference value Preset 0 00 Hz Range 100 kHz highest frequency Location Page 239 Remarks None Freq Start Supported All This softkey enables you to set the frequency of the first point in the sweep Preset Maximum frequency Range 100 kHz highest frequency Location Page 233 Page 245 Remarks None Freq Stop Supported All This softkey enables you to set the frequency of the last point in the sweep Preset Maximum frequency Range 100 kKHz highest frequency Location Page 233 Page 245 Remarks None 154 Chapter 5 Key Reference F Freq amp Ampl Supported All Use this softkey to set the signal generator to sweep both frequency and amplitude data Preset N A Range N A Location Page 245 Remarks Both the frequency and the amplitude lists must have the same number of points or one must have only one point If a lis
29. from RF OFFtoRF ON TheRF signal is now being output at the minimum power level at the RF OUTPUT connector 4 Press Amplitude gt 20 gt dBm This changes the amplitude to 20 dBm The new 20 dBm RF output power is now displayed in the AMPLITUDE area of the display and also in the active entry area Amplitude is still the active function until you press another front panel function key You can also change the amplitude using the up and down arrow keys and the knob 5 Practice changing the amplitude using the arrow keys and the knob 22 Chapter 2 Fundamental Operation Configuring the RF Output Setting the Amplitude Reference and Amplitude Offset The following procedure sets the RF output power as an amplitude reference to which all other amplitude parameters are relative The amplitude initially shown on the display will be O dB the power output by the hardware minus the reference power Although the display changes the output power does not change Any subsequent power changes are shown as incremental or decremental to 0 dB 1 Press Preset 2 Press Amplitude gt 20 gt dBm 3 Press More 1 of 2 gt Ampl Ref Set This activates the amplitude reference mode and sets the current output power 20 dBm as the reference value The AMPLITUDE area displays 0 00 dB the power output by the hardware 20 dBm minus the reference value 20 dBm The REF indicator is activated and the Ampl Ref Off On softkey has toggl
30. meter timeout setting is not affected by a preset or by a power cycle The power meter is controlled only through a GPIB cable Chapter 5 183 Key Reference M Memory Catalog Supported All Usethis softkey to access a menu of choices that enables you to display a catalog of user files In addition the menu displays file management functions and a menu for choosing the file type Preset N A Range N A Location Page 247 Remarks None Mod On Off Supported PSG A Series This hardkey toggles the operating state of the RF carrier modulation function Preset Off Choices Off or On Remarks All modulation types can be simultaneously enabled except for FM with M and linear AM with exponential AM AM FM and M can sum simultaneous inputs from any two sources E xt1 E xt2 Internal 1 Internal 2 A given source may be routed to only one activated modulation type An annunciator on the signal generator is always displayed to indicate whether modulation is switched on or off 184 Chapter 5 Key Reference M Mod Status Info Off On Supported PSG A Series This softkey toggles the operating state of the modulation status display When the modulation status is set to on information about the status of all of the modulations available is shown at any time that you have accessed one of the modulation menus Refer to Figure 5 6 When the modulation status is set to off the information about the status of all the modulations is not displayed
31. new 700 MHz RF frequency is now displayed in the FREQUENCY area of the display and also in the active entry area 20 Chapter 2 8 Fundamental Operation Configuring the RF Output Press Frequency gt Incr Set gt 1 gt MHz This changes the frequency increment value to 1 MHz Press the up arrow key Each press of the up arrow key increases the frequency by the increment value last set with the Incr Set hardkey The increment value is displayed in the active entry area Thedown arrow works like the up arrow Practice stepping the frequency up and down in 1 MHz increments You can also adjust the RF output frequency using the knob As long as frequency is the active function the frequency is displayed in the active entry area the knob will increase and decrease the RF output frequency Use the knob to adjust the frequency back to 700 MHz Setting the Frequency Reference and Frequency Offset The following procedure sets the RF output frequency as a reference frequency to which all other frequency parameters are relative The frequency initially shown on the display will be 0 00 Hz the frequency output by the hardware minus the reference frequency Although the display changes the frequency output does not change Any subsequent frequency changes are shown as incremental or decremental to 0 Hz 1 2 3 Press Preset Press Frequency gt 700 gt MHz Press Freq Ref Set This activates the frequency referenc
32. not want to delete the files press the Return hardkey before confirming the deletion Preset N A Range N A Location Page 249 Remarks None Delete All lt catalog type gt Files Supported PSG A Series Use this softkey to delete all of the files in the displayed catalog of files of a selected catalog type The files will not be deleted until you press the Confirm Delete All lt catalog type gt Files If you change your mind and do not want to delete the files press the Return hardkey before confirming the deletion Preset N A Range N A Location Page 249 Remarks None 128 Chapter 5 Key Reference D Delete All Files Supported All Use this softkey to delete all of the files in the displayed catalog of files The files will not be deleted until you press the Confirm Delete All Files f you change your mind and do not want to delete the files press the Return hardkey before confirming the deletion Preset N A Range N A Location Page 249 Remarks This key does not affect the instrument state or calibration information If power on mode is set to last a new last state file will be created when the instrument idles Delete All List Files Supported All This softkey enables you to delete all list files The files will not be deleted until you press the Confirm Delete Of List Files f you change your mind and do not want to delete the files press the Return hardkey Preset N A Range N A Location Page 249 Re
33. ode Square an M Deep 5 Changes to Ext Coupling DC AC when AM Source gt Ext1 or Ext2 are selected DC being default selection Changes to Ext Impedance Ele 600 Ohm when AM Source gt Ext1 or Ext2 are selected Efe being the default selection ped4a 230 Chapter 6 Menu Maps AM Page 20f2 A AN Tone 1 Rate AM Start Rate Free Run AN Tone 2 Rate An Stop Rate A Trigger Key AN Tone 2 Amel Percent Of Peak AN Sheep Rate An Depth AM Sheep Trigger Free Run Trigger Out Polarit Neo BES Active when EXT is selected pe95a Chapter 6 231 Menu Maps Amplitude Amplitude Page 1 of 3 Atten Hold Power Search on Auto Sot At Set ALC Level N A Do Power Search ALC Bl Auto lt 100 kHz gt 3 100 kHz Levelino Mode Internal More 1 of 2 A Amel Ref Set Internal ma Poda EEST Ampl Ref Ext Detector Conf igure Meter Address Pore On Cal Array Ampl Offset Source Module Do Cal Meter channad A B Ext Detector PTA anar F Coupling Factor GPIB Listener Meter Timeout User Flatness More C1 of 2 Active when ALC is Off Active when Atten Hold is On activate by pressing Do Cal gt Abort Cal Activate by pressing Power Meter gt E4419B or E4417A pedia 232 Chapter 6 Menu Maps Amplitude Page 2 of 3 A 8 Edit Item Abort Cal ELL18B Insert Row Goto Top Row EGG 158 Delete Row Goto Middle Row ELL 16A Goto Bottom RO ELLIFA Page Up
34. on the selected point controls the output parameters frequency and or amplitude according to the sweep type Preset Range Location Remarks 1 N A Page 245 This key is disabled when Manual Mode Off On is set to Off If list or step mode is controlling frequency and or power then the indexed point in the respective list s will be used If the point selected is beyond the length of the longest enabled list then the point will be set to the maximum possible point and an error will be generated 182 Chapter 5 Key Reference M Meter Address Supported All This softkey enables you to select the external power meter GPIB address for use during the user flatness calibration Preset N A Range 0 30 Location Page 232 Remarks The meter address is not affected by a preset or by a power cycle The power meter is controlled only through a GPIB cable Meter Channel A B Supported All This softkey toggles between channels A and B when you are using an external power meter that has two channels Preset N A Choices AorB Location Page 232 Remarks ie meter channel selection is not affected by a preset or by a power cycle The power meter is controlled only through a GPIB cable Meter Timeout Supported All This softkey enables you to select the remote timeout length of the external power meter during user flatness calibration Preset N A Range 1 0 msec 100 0 sec Location Page 232 Remarks The
35. one error message in the queue the number of error messages is displayed along with the first message Press any key to exit the Error Info menu Preset N A Range N A Location Page 247 Remarks None Chapter 5 225 Key Reference V View Previous Error Message Supported All Use this softkey to display the newest error message first Continue pressing this key to view additional error messages in order of newest to oldest Press any key to exit the Error Info menu Preset N A Range N A Location Page 247 Remarks N A View Test Info Supported All Usethis softkey to display more details of the self tests Refer to the calibration guide for more information Preset N A Range N A Location Page 250 Remarks This is intended for use by service personnel 226 Chapter 5 Key Reference Ww W White Pixels Screen Test Supported All This softkey enables you to set all of the pixels on the display to white Press the Local hardkey to return the display to normal operation Preset N A Range N A Location Page 247 Remarks This key is provided for factory use in testing the display Chapter 5 227 Key Reference wW 228 Chapter 5 6 Menu Maps 229 Menu Maps Page 1 of 2 cit HES Internal 1 AM Path Internal 2 2 An On An Depth An Source Internal 1 AM Rate Uniform kk AM Haveform Sine Positive Sine AM Depth Couple Triangle Negative Gaussian HIM On
36. operation 180 RS 232 baud rate 52 203 buffer reset 52 201 echo 52 203 pacing transmit receive 220 setup 52 timeout 52 204 transmit receive pace 52 220 remote operation annunciator 13 repair return instructions 88 Return hardkey 10 202 RF ON OFF annunciator 13 RF On Off hardkey 8 202 260 RF output amplitude 22 increment 162 offset 23 115 reference 23 116 attenuator hold mode 29 ATTN HOLD annunciator 29 connector 9 frequency 20 increment 21 23 162 multiplier 152 offset 22 153 reference 21 153 154 leveling external description 54 detectors and couplers splitters using 54 mm wave source modules using 58 mm wave source module using 29 multiplier frequency 152 operating state 20 202 phase adjustment 107 reference 190 step attenuator 29 swept list data load from step sweep 27 126 180 description 25 points 27 92 single sweep 28 212 sweep trigger 28 217 sweep type 26 218 swept step amplitude 25 117 description 24 frequency 25 154 step dwell 26 214 trouble See problems user flatness correction creating and applying 59 description 59 mm wave source module using 66 RF OUTPUT connector 9 Index RS 232 baud rate 52 203 buffer reset 52 201 connector 16 echo 52 203 pacing transmit receive 220 setup 52 203 timeout 52 204 transmit receive pace 52 220 S S service request annunciator 13 Save hardkey 6 206 m
37. pics pokes REAR E ph Rees BRAK Skea 184 BRM TIME 8 se ces yy a ctl ent ii enh ite ty dh ee ei eo 08 ent no 184 Mod Stati Vea ON OW els ceca dined de DEUS os a OSs HE ee CE 185 CT ee CT OT ete AAA AIR rer er a 186 A Oo edna eam ee aaa a Bib esas eed Geog 186 PP wld bh Rmuld aA kh Pm dew RAR mG debian Rawle Ge wl ce Rae ate Weide 186 Numere herpes 445 posh oe A Oh in Phew ee a 187 ee eee ee ee ee o TAE STA are Te vere tre ee re a re 188 CM carro a a RA Lee E 188 A toda ogee da ehw Ei eddie whee peewee 189 Tee AAA AAA AAA AAA 190 Page DO iio a a e e e e ee da 190 Po OUD uubhic dee puras pelado da ion ROA RES 190 Pinas RES cora Phd eae A io a 190 POE MIG sonal ceda dar dd ame ema 191 POSE citar rra ais a al a aca 191 POWER MISS urraca dd 191 Powe Or least PRESA aria aa doo 192 Power Onm PrEeSet 0 aer sh a eh dee a a ei a sank famed 192 Pona SPC rata dara a a Ad Rm ER Rae Rue 193 Power Search Manual AUtG 0025 0 cha Sady oes indio ica baw ed is 193 PE acido arribado 193 PRS Listy cria a AA Aa 194 Preg Normal Weer rar rr Aa a 194 PIS canada dada aaa eR eee 194 PUSO senora pr mic a die 195 PUSON ON dr tad a be a do aia reeds 195 Pulse PROA sscidarnresaidara ri E Akie sda ears 196 Pulse RAS rs diia is or asses 196 Pulse CURE iia radio porra rada ias he q 197 Pulse WIN vtr A A 197 xii Contents la Bein il Sie ete an ee ess So Sf Sy Se it te ls feet he aro es Bh sn oS i sel 198 Roni ck su bewht bes sie est be giclee dead tones AS
38. power cycle 300 Hz Supported PSG A Series with Option UNJ This softkey enables you to select an internal or external reference oscillator bandwidth of 300 Hz Preset N A Range N A Location Page 248 Remarks None 102 Chapter 5 Key Reference Numerics 1200 Supported All This softkey selects 1200 as the baud rate in bits per second for the rear panel RS 232 connector Preset N A Range N A Location Page 248 Remarks The baud rate is not affected by a preset or by a power cycle 2400 Supported All This softkey selects 2400 as the baud rate in bits per second for the rear panel RS 232 connector Preset N A Range N A Location Page 248 Remarks The baud rate is not affected by a preset or by a power cycle 4800 Supported All This softkey selects 4800 as the baud rate in bits per second for the rear panel RS 232 connector Preset N A Range N A Location Page 248 Remarks The baud rate is not affected by a preset or by a power cycle Chapter 5 103 Key Reference Numerics 650 Hz Supported PSG A Series with Option UNJ This softkey enables you to select an internal or external reference oscillator bandwidth of 650 Hz Preset N A Range N A Location Page 248 Remarks None 9600 Supported All This softkey selects 9600 as the baud rate in bits per second for the rear panel RS 232 connector Preset N A Range N A Location Page 248 Remarks The baud rate is not affected by a prese
39. s RF output The rate of the undesired AM equals the difference in frequency between the spectrum anal yzer s LO feedthrough and the RF carrier of the signal generator Reverse power problems can be solved by using one of two unleveled operating modes ALC off mode or power search mode ALC Off Mode ALC off mode deactivates the automatic leveling circuitry prior to the signal generator s RF output In this mode a power meter is required to measure the output of the signal generator and assist in achieving the required output power at the point of detection To set the signal generator to the ALC off mode follow these steps 1 Press Preset 2 Press Frequency enter the required frequency and terminate the entry with the appropriate terminator softkey 3 Press Amplitude enter the required amplitude and terminate the entry with the appropriate terminator softkey 4 Press RF On Off 5 Press Amplitude gt ALC Off On This deactivates the signal generator s automatic leveling control 6 Monitor the RF output amplitude as measured by the power meter 7 Press Amplitude and adjust the signal generator s RF output amplitude until the desired power iS measured by the power meter 80 Chapter 4 Solving Problems If You Encounter a Problem Power Search Mode Power search mode executes a power search routine that momentarily activates the ALC calibrates the power of the current RF output and then disconnects the ALC circ
40. sine 212 square 213 swept sine 219 start rate frequency 95 112 148 175 stop rate frequency 96 112 149 175 sweeps second 96 97 112 113 149 176 triangle 220 World Wide Web address signal generator See hostname 263 Index 264
41. softkeys for defining a user flatness list sweep E ach point in this sweep will contain a frequency and amplitude correction pair Preset N A Range N A Location Page 232 Remarks None Chapter 5 123 Key Reference c Configure List Sweep Supported All Use this softkey to access a menu of softkeys for defining a list sweep In this menu you can insert and delete points in a sweep Each point can contain frequency amplitude and dwell time information NOTE The dwell time does not begin until the signal generator has settled for the current frequency and or amplitude change When the signal generator has settled a trigger signal is transmitted through the rear panel SOURCE SETTLED OUTPUT connector Preset N A Range N A Location Page 245 Remarks None Configure Step Array Supported All Use this softkey to access a menu of softkeys that enables you to define a user flatness step sweep In this menu you can set the start frequency stop frequency and the number of points for the sweep Preset N A Range N A Location Page 233 Remarks None 124 Chapter 5 Key Reference c Configure Step Sweep Supported All Use this softkey to access a menu of softkeys for defining a step sweep In this menu you can set the start and stop frequencies for a sweep set the start and stop power levels and you can set the number of points in the sweep with the dwell time at each point Preset N A Range N A Location Page 2
42. to the TRIGGER IN connector or triggering by the Trigger hardkey Preset Free Run Choices Free Run Trigger Key Bus Ext Location Page 240 Remarks This softkey is active only when you have selected the internal source to operate as Function Generator 1 You can also configure the polarity of the TTL signal output at the TRIGGER IN connector using the Trigger In Polarity Neg Pos softkey on this menu Refer to Trigger In Polarity Neg Pos on page 222 176 Chapter 5 Key Reference L LF Out Tone 1 Freq Supported PSG A Series This softkey enables you to set the frequency for the LF output tone 1 This key is coupled to the LF Out Freq softkey in the initial LF Out menu and the LF Out Start Freq softkey in the LF Out Swept Sine menu Any value set for LF Out Tone 1 Freq is reflected in the LF Out Freq and LF Out Start Freq softkeys Preset 400 0 Hz Range 0 5 Hz 1 0 MHz minimum increment allowed is 0 5 Hz Location Page 240 Remarks This softkey is active only when you have selected the internal source to operate as Function Generator 1 LF Out Tone 2 Ampl Of Peak Supported PSG A Series This softkey enables you to set the ratio of the peak amplitude of LF Out tone 2 tothe peak amplitude of LF Out as a percent The sum of the two LF Out amplitudes results in the total LF Out amplitude set by the LF Out Amplitude softkey in the initial LF Out menu For example if the total LF Out amplitude is 300 mV and you set LF
43. tudes habe kee Oa Rage 142 E 143 FRESON ON ona encia dada eos 143 PUIG dscracci s dore dr oa 143 FRR Normal POR BW ovario das 144 PM BY AP yA we E EEUNA RE eee Rg eR ERR 145 FM Der Couple CIO eh acnweltn tabu whee id id 146 FMI e hemnedapewmemsncs 146 FM PaM E ias a sop acido i Hench sere nse nl sl oh rae enn ot el Se see 147 FRUIT suso dd sb ds dci de dh een a la A 147 FM SAUE tie ida a AAA AAA A 148 FIRST Atras iras 148 EMISORA ire ras lor dol AA pe 149 FM See AT AA AAA E A AN A 149 EMS WE IO si AAA la 149 Contents FM Tone ROLE 5 5 a cece she ic sd ia Antrd 150 FM Tone 2 Ampl Percent Of Peak oooocoocoocococc eens 150 FM Tone 2 Rate cocina rin OVA 150 PM Wave 003659 to0secessd O RE eeu eases 151 Free RUN 445 ees bb eee Gee eRe ee EPSON EOE PEER Cbd PRES OR A 151 DiE ee E E T T T E E T 152 Fr PMG rr A a 152 PrO ONSE pto ia A hee Be ine Ba ae la eth le tr a 153 Frea RET OT Oils int aaa al A AA ad ae eR 153 Freg Ref A dees LEO HPO kee OHH RA nA DEORE eeees 154 Pred SIC a dida idad 154 FEAS a ada a a E AA e 154 PRES AL A do A il lil a 155 FeO eerie ta En Ra TE AE DEANE E A oRsed dae ewe uAE 155 Funcion Gonera Too a cieiendd a6 44 dto os aas RA 155 FUNCION Generation 25 3434 ott abia dai A ds hes Di ai 156 Arrieta vada airada 157 AMIS BUEN sh san srs a fc e dc da dc a ld ct 157 Coto BOOM RON ss ora A AA Aa gos 157 Goto Middle RON 0 R Nek e E REN eee REM Rees RoW eS 157 GORON rms dada Chee ade tae eee es eee 158 Goto
44. you to configure the automatic leveling control ALC power search user flatness external detector coupling factor and amplitude options The current RF output power level is always shown in the amplitude area of the display except under the following conditions e amplitude reference mode is turned on e an offset is applied e astep or list amplitude sweep is in process The amplitude area of the display is blanked whenever an amplitude sweep is selected Preset 135 00 dBm for instruments with Option 1E 1 Range The output power range depends on your signal generator model F or more information refer to the data sheet Location Page 232 Remarks None Atten ALC Control Supported All with Option 1E1 Use this softkey to access a menu of keys that enables you to control the attenuator and the automatic leveling control ALC power level Preset N A Range N A Location Page 232 Remarks None 118 Chapter 5 Key Reference A Atten Hold Off On Supported All with Option 1E1 This softkey toggles the operating state of the attenuator hold function Turn attenuator hold on to freeze the attenuator at its current setting Use this function at any time you want to guarantee that there will be no power discontinuity normally associated with the attenuator switching during power adjustments Preset Off Choices Off or On Location Page 232 Remarks There will be no attenuator switching during power adjustments The maximu
45. 02 and damage levels are 5 Vim and 10 Vp 13 LF OUTPUT PSG A only This BNC connector is the output for modulation signals generated by the low frequency LF source function generator This output is capable of driving 3 Vp nominal into a 50Q load 14 Mod On Off Key PSG A only This hardkey toggles the operating state of all modulation signals Although you can set up and enable various modulation states the RF carrier is not modulated until Mod On Off is set to On An annunciator is always present in the display to indicate whether modulation is turned on or off 15 ALC INPUT This connector is used for negative external detector leveling This connector accepts an input of 0 2 mV to 0 5 V The nominal input impedance is 120 kQ and the damage level is 15 V 16 RF On Off Key This hardkey toggles the operating state of the RF signal present at the RF OUTPUT connector An annunciator is always visible in the display to indicate whether the RF is turned on or off 17 Numeric Keypad The numeric keypad consists of the O through 9 hardkeys a decimal point hardkey and a backspace hardkey The backspace hardkey enables you to backspace or specify a negative value When specifying a negative numeric value the negative sign must be entered prior to entering the numeric value 8 Chapter 1 Signal Generator Overview Front Panel 18 RF OUTPUT This connector is the output for RF signals The nominal output impeda
46. 2 gt AM Waveform gt Triangle The AM Path 2 AM waveform is set to Triangle as displayed below the AM Waveform softkey 4 Press More 2 of 2 gt AM Source gt Internal 2 The AM Path 2 sourceis set to Internal 2 as displayed below the AM Waveform softkey The signal generator is now configured to output a O dBm multipath amplitude modul ated carrier at 15 GHz AM Path 1 is a sinewave with 90 depth and a 10 kHz rate AM Path 2 is a triangle wave with 40 depth and a 400 Hz default rate Activating a Multipath AM Configuration Follow these remaining steps to output the amplitude modulated signal 1 Press AM Off On This activates the modulation on AM Path 2 The am annunciator is activated indicating that you have enabled amplitude modulation on AM Path 2 2 Press AM Path 1 2 gt Amp Off On This toggles back to AM Path 1 and activates the modulation on AM Path 1 3 Press RF On Off The RF ON annuciator is activated indicating that the multipath AM signal is now available at the RF OUTPUT connector 36 Chapter 2 Fundamental Operation Configuring Analog Modulation PSG A Series Only Configuring FM Using this procedure you will learn how to create a frequency modulated RF carrier with the following characteristics RF output frequency set to 12 GHz RF output amplitude set to 0 dBm e FM deviation set to 75 kHz e FM rateset to 10 kHz Setting the RF Output Frequency 1 Press Preset 2 Press Fre
47. 45 Remarks None Confirm Delete Supported All Usethis softkey to continue to delete the selected file Preset N A Range N A Location Page 249 Remarks None Confirm Delete Of All files Supported All Use this softkey to confirm that all of the files in the catalog you have selected should be deleted If you do not wish to delete all of the files press the Return hardkey instead Preset Range Location Remarks N A N A Page 251 None Chapter 5 125 Key Reference c Confirm Load From Step Sweep Supported All Usethis softkey to proceed with setting up a table that includes the start frequency stop frequency and number of points that are defined in the Configure User Flatness Step Array and the Sweep List menus Preset N A Range N A Location Page 233 Page 246 Remarks None Confirm Preset Supported All Use this softkey to confirm that you want the delete the current list and replace it with a new list Preset N A Range N A Location Page 233 Page 246 Remarks None Copy File Supported All This softkey enables you to copy and rename a file in the displayed catalog of files When you have entered the new file name press the Enter terminator softkey If you have changed your mind press the Return hardkey Once you press Enter the new file is stored and displayed immediately in the catalog list Preset N A Range N A Location Page 249 Remarks None 126 Chapter 5 DC Support
48. 72 LAN SEU sd dest cda AA eee emi ei AA ei 172 Len A 172 Sy ee Reece ee eee Gee ee eee a eee e ee a eon ee ee eee ee ee 172 LF Out Amplitude Into SO ONMEs sovcecsiiis eses iaa 173 LF QUCFTO gin ceed danetuieedarete sa Reale Kee peels ee PEE RRR eee a 173 Le OUO O trar A EE 173 LF QUE SOU ia a a a a ada 174 LF OU SLA FE e bi Dansi tn fest an ts eg aeaa a ane ced a 175 CFO ODF orne enanas apar depara LADA AS 175 LF OUL Sweep RE riada A 176 EF QUESWES ISA di taa dd ao 176 LF Qut Tone L Fre sr a e ARA RA 177 LF Out Tone 2 Ampl WOOF Pel io ic Caw A A 177 LF QUE Tope ZTFI E aaa e eens Le add Ed malas 178 ee A I e ce sae Ge sepia ii red dic a di sh eam 178 LB Gee eee eee mere eee ee cere ee eae Te ee ee eee eee tree ee ey eee ee ee 179 Load Cal Array From Step Array os c cece vaveaee een eee esse eae eee awed ee 179 Load Pron Seleted File ceres coven ueta canines ii taney en eas 179 Load List Fram Step Sweep ng los a ii LM LRA sanii ae DAS Rua PbS Res 180 LAS ds Miandad Hehe ed AA EA Bee eee eS 180 LOA sosa real meee A AAA RAE eRe eg eee 180 Mio APP oes eee dw hoes ene Le eearnw eine eau 181 Contents Ba cn ei tre es ns en es isu i Se da es et e dci See ee aji 182 Manual Mode GIT ON o cccs cra pira i eau hraa deg cs ban SOG RAW EAS Ques 182 Manual POWls0 lt i 36645 980d eb SSE ORE EY PARSE eee Bee a 182 Mister Aduriz 183 Meter Channel A Bis ois raro O dee a sa ed 183 Mister Time ui ede ete dw eee eet PORTE Rei ee Sead 183 RESTO Cola
49. A RE ea RE ES 116 A Stans nt AV Cake Sheed ied kage mene ee Ga oi 117 AmO Aaa ia See eae amEA Decade a Smee 117 PMA MUNI NB es 5 Sse ei So pe gyn i ic et Padme e 118 AHALE COMPA ct aha ieee hd ite ds tad dba chu Baud pees ay 118 Atten Hold OF Onecscicccseeee ree ed seed Pa Sed Ga Pe bd Eee OE ees eae eE TOS 119 A 1943945 T N EE coed heehee ener saad 119 vii Contents A Sy et ee AP ls acl men i fate eed meet sero 120 Bina ade o as qe 120 Black Pixels Screen Tester ioonorscaris oras ee or A eH 120 A O Rane ew ed aaa 120 E eee eee eee eee eee ee ee ee ee ee 121 ESAS EA SA ols SR AA Seah Aes A ETA 122 E A eee ew iene aaa ee RAR eR mat 122 Clear Error UID orion A ender Hecke de lh Hes aes ae aba se a 122 CRE TO ie bara ad AA da cs 123 Configure CA ATOY cairo dai 123 COMU List SWE ros da e dada bd a a Rade 3 BAY 124 Omar SEAN arde ei AAA A tada 124 COINS SEO SWEEP 2 cd a a Be RG 125 EST Delete o ci LAP ea Pa eae Pema 125 Confirm Delete OT Al Wess 00 cio dee ks baw a E RA 125 Confirm Load Fron Step WES 22 0 costra ed ra ed denen e a 126 EPA ee eee ee ee eee ee ee ee 126 FIS tado teni lees E pin esti ete daria e 126 DGG By Rb Rp ted lo lu GRU Hone A TETS qlo 127 BE ana A AA E AE a E 127 PORRO Calvicie da ea dd 127 Delete All Binary Fil ccoo a o bet RRA ERA 128 Delete All catalog types Files coomoscrranain arre Ea 128 Deitel Files oa riada toa a 129 Delta All List PSs 5 5 he be orar oe A 129 Delete All Rees In Seg ss wcescencd die
50. A Series Use this softkey to access a menu of choices that enables you to select either an internally generated or an externally applied modulation input for the phase modulation source The internal modulation is always ac coupled For externally applied signals you can choose between ac and dc coupled modulation Preset Choices Location Remarks M Start Rate Supported Internal 1 Internal 1 Internal 2 Extl Ext2 Page 237 A 1 0 volt peak voltage input is required for calibrated M deviation settings TheEXT 1 LO HIandEXT 2 LO HI display annunciators will turn on if the peak input voltage differs from 1 0 by more than 3 The LO HI annunciators function only for ac coupled external inputs PSG A Series This softkey enables you to change the starting frequency of the internally generated modulation source for swept sine phase modulation Preset Range Location Remarks 400 0 Hz 0 5 Hz 1 MHz minimum increment allowed is 0 5 Hz Page 238 This softkey is coupled to the M Rate softkey in the initial AM menu and the M Tone 1 Rate softkey in the M Dual Sine menu Any value set for 6M Start Rate is reflected in the M Rate and PM Tone 1 Rate softkeys Chapter 5 95 Key Reference Symbols M Stop Rate Supported PSG A Series This softkey enables you to change the ending frequency of the internally generated modulation source for swept sine phase modulation Preset 400 0 Hz Range 1 Hz 1 MHz minimum i
51. AAA A AAA 76 NE RE OVU C osas a aa o 76 Na Modulation at the RF Output 0 22208 caeeaiy een ia e s PENi 76 RF OUt Power TOR LON ja desa esos 4 ARA AA vee eS 77 Signal Loss Occurs While Working with MixersS 0 000 e eee eee oo 78 Signal Loss Occurs While Working with Spectrum AnalyzerS 80 Sweep Appears to be Stalled 0 0 cece eee 82 Canna Turn Off ae Ed oe edad owed sea ek Cheeks ees cee 82 Incorrect List Sweep Dwell TiTE conocsriarioserion a r rrrrs ita daa 83 Recalled a Register and Sweep List is MisSINg 00 0 cece eee 83 All of the Registers Where You Previously Stored Instrument States are Empty 84 Saved an Instrument State in a Register but the Register is Empty or Contains the API RESTE 1 ee ci mn ns ah i sn sana ef RA A Ser i ih ie a a 84 The Power Supply has Shut DOWN i446 cera aod a een es eee Cad oes 84 Signal Generator is Locked Up i ios2 ceed eve ee sees eee bm awen bene ew een ee 85 Where g Ts A a ear eee ae ae eee re eee 87 Returning a Signal Generator to Agilent Technologies 00000 eee 88 Contents S Key ROTerence cc cciccscasensecas Saeen sede ERA EA AAA 91 SONS ag ek Heh pa a eRe EMERG eA Soe REA eS 92 PPO ici ni IR RT RES FIRES NEW TREO DHE Re eke dees 92 ee ee ee eee eee ee eee eT eee ee ree a 92 OM Dey Couple iccicceccaeeew ies irc r rr LOEWE PHS ROOT TER ES ROH EROS 93 edo y ANN Bs se hn PPP 93 A rogers dh heap iaees OR mead TERENA 94 PNM R
52. ASE T SeeLAN A AC power receptacle 15 active entry area 12 clearing 123 address GPIB 51 hostname 51 Internet Protocol SeelP address World Wide Web See hostname Agilent _ contacting 89 returning product to 88 Index ALC annunciator 12 attenuation and ALC level balancing 58 bandwidth selection 74 BW selections 100 101 107 119 control 118 level 58 211 limitations amplitude 55 operating state 108 AM annunciator 12 configuration example 33 coupling external source 139 depth 35 109 description 33 dual sine amplitude second tone 113 rate first tone 113 rate second tone 114 hardkey 108 menu map 230 mode normal deep 109 multipath 36 depth coupling 109 selection 36 110 operating state 36 110 rate 35 111 source 33 111 swept sine start rate 112 stop rate 112 sweeps second 112 trigger 113 type linear exponential 114 waveform 36 114 See also waveforms function generator amplifier microwave external leveling setup 29 mm wave source module setup 29 user flatness calibration setup 66 253 Index amplitude display area 14 hardkey 6 118 LF output 42 43 menu map 232 modulation See AM reference 116 RF output 22 118 increment 162 leveling mode 172 offset 23 115 reference 23 116 sweep 115 annunciators M 12 ALC OFF 12 AM 12 ARMED 12 ATTEN HOLD 12 behavior during AM 111 FM 148 M 95 ERR 12 EXT 12 EX
53. ATE INPUT 23 Standby LED a n Keys do Key 29 Display Contrast Decrease Key 30 Display Contrast Increase Key 31 Local Key 32 Preset Key pe913a Chapter 1 5 Signal Generator Overview Front Panel 1 Display The LCD screen provides information on the current function nformation can include status indicators frequency and amplitude settings and error messages Labels for the softkeys are located on the right hand side of the display For further description of the front panel display refer to Front Panel Display on page 11 2 Softkeys These softkeys activate the function indicated by the corresponding label on the display Corresponding menu labels appear directly tothe left of each key 3 Knob Rotating the knob increases or decreases a numeric value or changes a highlighted digit or character You can also use the knob to step through lists or select items in a row 4 Amplitude Key Pressing this hardkey makes amplitude the active function You can change the RF output amplitude or use the menus to configure amplitude attributes such as power search user flatness and leveling mode 5 Frequency Key Pressing this hardkey makes frequency the active function You can change the RF output frequency or use the menus to configure frequency attributes such as frequency multiplier offset and reference 6 Save Key This hardkey accesses a menu of choices enabling yo
54. Any value set for FM Stop Rate is reflected in the FM Tone 2 Rate softkey FM Sweep Rate Supported PSG A Series This softkey enables you to set the sweep rate for swept sine frequency modulation Preset 400 0 Hz Range 0 5 Hz 100 0 kHz Location Page 236 Remarks N A FM Sweep Trigger Supported PSG A Series Use this softkey to access a menu of choices that enables you to select the triggering mode for the swept sine frequency modulation Preset Free Run Choices Free Run Trigger Key Bus Ext Location Page 236 Remarks You can also configure the polarity of the TTL signal output at the TRIGGER IN connector using the Trigger In Polarity Neg Pos softkey on this menu Refer to Trigger In Polarity Neg Pos on page 222 Chapter 5 149 Key Reference F FM Tone 1 Rate Supported PSG A Series This softkey enables you to set the internal modulation frequency for the FM tone 1 rate of the dual sine FM waveform Preset 400 0 Hz Range 0 5 Hz 1 0 MHz minimum increment is 0 5 Hz Location Page 236 Remarks This key is coupled to the FM Rate softkey in the initial FM menu and the FM Start Rate softkey in the FM swept sine menu Any value set for FM Tone 1 Rate is reflected in the FM Rate and FM Start Rate softkeys FM Tone 2 Ampl Percent Of Peak Supported PSG A Series This softkey enables you to adjust the amplitude of the alternate frequency as a percentage of the peak analog modulation amplitude F or example
55. DARE T S 198 Petal iesovt eee sa Gers Seed adaweeetS 5 bbe POR ia ea 198 Recall RE OSC Sting caidas ei e Raat e ica Baa te 199 Rall Reg ccoo rr A Ra A eRe 199 Ref Ost ON E csi cde tanto Seed neierekiurerdeeeX ad 199 REP DSC FING usina adriana RA SRT Rad enon eau 200 Ref Oscillator Source Auto Off ON i250 cece ee ee a ee 200 Reference Oscillator AdjusStMent oooooococoocoocrc eee 200 Pame Fl sierras nia ea IAB a aw eT ERA R ORES 201 ReESAVE Sedin RED Is iia isa acid dia dias 201 REER IZ ati a rai dar aa den aii iaa o Ali quid 201 Restore Factory Detaulls sia ii a no Sheen ia 202 E 202 BP OOT uscar ra dci 202 RS 232 DAA Ral sica dai de bs didas ad 203 AS 222 BOO Oli css ics atisereaeenires ss 6he 9554 eee S64 a 203 RSA SeU a o s e a aa i deai da ae i e A e 203 Roa TEE ospean taa uE Ae a da de i ws 204 Run Complete SAT TO 0 A hwo A a us 204 ROA Rare TESS corri ai a 204 Run Selected Tests csi A a a as 205 A A E E EE A ad Gore Be ee ak a ee a Dee ae we DE Dp aw S 206 BE orca A oe So Sn ee ee ET Reta ee hae 206 o ts ney ssc ve nh Seger ese a ft Si oe Ri i ee i el ie he te sis 206 Save Sean Regla cbr arar rada rar ROR RKRAA RA 207 Save WSS Prese fisher bee ete 2 Ghd bee Peete RRA ee eIS awe boe eed 207 Stren Saver Day a a a e A 208 Seen Saver MOTO cid A A A Aa 208 Sea Save UA o bbw ee a Ok oe PE a A ic RRR 209 Sded CaO Alli aaa ce al e ti A 209 Select Deselect Test o ooooooccoooco nee ene e nent eneenes 209 ROCCE REG dais ded
56. EQUENCY 40 000 000 000 00 sz AMPLITUDE 135 00 aan E Installed Board Information Hame Part Number Serial Humber Version Status ALC E8251 60005 ANALOG MOD GEN Es251 60011 CPU E8251 60006 FRACN Es251 60044 LOW BAND OUTPUT E8251 60046 MECH ATTEN 33328 60001 MICRO INTERFACE E8251 60009 MOD FILTER 5087 7061 MOTHERBOARD Es251 60004 REFERENCE E4423 60018 Additional Page Indicator 1004711994 1004503242 1002008632 1001402669 0004305769 0123456789 1004505716 0123456789 1004403516 1000002651 A0100 A0100 A0100 A0100 A0110 A0100 A0100 A0100 A0100 A0100 DETECTED DETECTED DETECTED DETECTED DETECTED INSTALLED DETECTED INSTALLED DETECTED DETECTED Page Up Page Down The gray and white vertical bar on the left side of the display indicates that there is an additional page of information Use the Page Down softkey to display the next page Use the Page Up softkey to return to the previous page Preset Range Location Remarks N A N A Page 250 A status of DETEC detected by the internal computer A status Of INSTA iL use and is not normally automatically detected ED means that the installed board was automatically ED means that the installed board is available for Chapter 5 163 Key Reference Instrument Adjustments Supported All Usethis softkey to access a menu of front panel adjustments for the signal generator This m
57. File Page Down Confirm Load From Step Sweep Editing Keys ABCDEFG HIJKLMN OPQASTU VUXYZ_8 amp a C15 Enter Goto Top Row Goto Middle Row Goto Bottom Row Page Up Page Down El Edit Insert ear Text ing Mode Replace pe9tia 246 Chapter 6 Utility Page 1 of 5 Poner On Preset Preset User Save User Preset View Previous Error Message View Nest Error Message Clear Error Queuets Brightness Screen Saver MEM On Screen Saver Mode Light Only Screen Saver Delay Inverse Video MA On Update in Remote EA On More 1 of 2 GPIB Address Black Pixels Screen Test White Pixels Screen Test More 2 of 2 Menu Maps Utility Reset RS 232 RAS 232 Echo MA On Trans Recv Pace ia Hon Rs 232 Timeout Hostname IP Address pe925a Chapter 6 247 Menu Maps Utility Figure 6 8 Page 2 of 5 Ref Dsc Fine 128 Ref Osc Coarse 128 Store Ref Osc Setting Recall Ref Osc Setting 2400 More C1 of 2 Reference Internal Ref Oscillator Bandwidth Adjustment Step knob Ratio External Rof Restore Factory Defaults Part of Option UNJ See Next Page D pe926a 248 Chapter 6 Figure 6 9 Page 30f5 Catalog Tupe ALL Delete File Copy File Page Down Rename File Delete All Files This key will reflect the Catalog Type selected Editing Keys ABCDEFG HIJKLMN
58. LIST 2 Press List The Catalog of List Files is displayed 3 Press Catalog Type gt State The Catalog of State Files is displayed 4 Press Catalog Type gt User Flatness The Catalog of USERFLAT Files is displayed 44 Chapter 2 Fundamental Operation Using Data Storage Functions Storing Files To store a file to the memory catalog first create a file For this example use the default list sweep table 1 2 Press Preset Press Sweep List gt Configure List Sweep gt More 1 of 2 gt Load Store This opens the Catalog of List Files Press Store to File This displays a menu of alphabetical softkeys for naming the file Store to is displayed in the active function area Enter the file name LIST1 using the alphabetical softkeys and the numeric keypad 5 Press Enter The file is now displayed in the Catalog of List Files showing the file name type and size Copying Stored Files 5 Highlight the desired file Press Copy File This opens the file naming text editor Press Editing Keys gt Clear Text This clears the old file name Input the new file name using the alphabetical softkeys and the numeric keypad Additional characters are available by turning the knob Press Enter Renaming Stored Files 1 Highlight the desired file 2 Press More 1 of 2 gt Rename File 3 4 Input the new file name using the alphabetical softkeys and the numeric keypad Pr
59. ORE sc tok cy ehvnweeict A A TAR hea tA 94 DN SOUS ih ebead we hta tatl ie hors n ids bode iea aa has 95 OM Start RAG irc cok wie eae ev wd PREM AAA e La 95 PM SOM RAS 242245 eee o PEEK do ee eS LORE eG 96 OM SW Bae ras ade 96 PM Sweep TEO e coito jade da he A ler Hom Sa a evans Aes Neda rae ot fv 97 DU Oe A salad a dd adas id 97 M Tone 2 Ampl Percent OfPeak o cococococcc eee 98 PM Tone AN smd ches nec se rin de dd Bevan eh d de ent me a oh ae 98 OM WaVe Moira rada rr rra rra dba 99 MU is E oe A Rhee Reena ees 100 o A teh eecie bend eek Ree GAR eee E ken eee 100 IO KHZ sececenc oras ee Gee ede Ske a PREES GE oH Pew A WOE RTE eal 100 TOO aarre hata teed n Det Ohh ee Reng 100 OTE gnc SG jk Ph ee aR Re aida eid ee pe PoE nag Gomme ee a tetas 101 LI alicia nn Sb te wt va fad Se ac ie Se ne be Ba lane li Ble en i i A ei 101 Ca eran od gl di ee Teer eee ee 101 ia y e ci Ged ioeed GW HS ENE iB i EOS eds ERA ede ed Dee AN Teh ES OEE 102 A hh ba ede ae Gees Raden e a weed ee Rais phan eckadae 102 BOO AZ ici ri a AR A RAR ee eee ni 102 TA a ii tl al ii 103 PAI chin ote LE AALS MRE LARD Pet Redte eee RAPA Soe wee 103 BES ic ys ce cp thesia eka ht tn epee te ere ec evap fest Her eit i tin ned 103 GOS occa a hae ai she bee eed da SRO eda hae ee ey 104 TODO ista ida ii RENDER LE TEE EWE E EE a di eae 104 TG ri daa eee ede a eee RRS 104 SOU cog ilies hie deeded pnb weg ahead haan tise lg hehe ued 105 OU a A Ad een aa A a ee Re eee eae 105 vi
60. OURCE MODULE interface connector 1 Turn off the signal generator s line power 2 Connect the equipment as shown Use the setup in Figure 2 1 for signal generators without Option 1EA Use the setup in Figure 2 2 for Option 1EA signal generators Figure 2 1 Using a Millimeter Wave Source Module with a Signal Generator without Option 1EA SIGNAL SOURCE Ww GENERATOR MODULE o o RF OUTPUT p ADAPTER If Required RF INPUT MICROWAVE AMPLIFIER RF OUTPUT MM WAVE SOURCE MODULE Leveled SOURCE MODULE INTERFACE Output 30 Chapter 2 Fundamental Operation Configuring the RF Output Figure 2 2 Using a Millimeter Wave Source Module with an Option 1EA Signal Generator PE SIGNAL MODULE V GENERATOR o o o RF OUTPUT a ADAPTER MM WAVE SOURCE MODULE If Required Leveled Output Configure the Signal Generator 1 Turn on the signal generator s line power Upon power up the signal generator automatically senses the mm wave source module e switches the signal generator s leveling mode to external source module power is leveled at the mm wave source module output sets the mm wave source module frequency and amplitude to the source module s preset values and e inthe FREQUENCY and AMPLITUDE areas of the signal generator displays the RF output frequency and amplitude values available at the mm wave source module output The m mop indicator in the FREQUENCY a
61. OUTPUT CONTROL ALC LEVEL RF OUTPUT 2 dBm RF LEVEL CONTROL y DETECTOR MEASURES DETECTOR 15 dBm MEASURES REVERSE 2 dBm ar A POWER ALC LEVEL Solving Problems If You Encounter a Problem RF INPUT MIXER 8dBm gt LO LEVEL 10 dBm LO FEEDTHRU 5dBm As compared tothe original configuration the ALC level is 10 dB higher while the attenuator reduces the LO feedthrough and the RF output of the signal generator by 10 dB Using the attenuated configuration the detector is exposed to a 2 dBm desired signal versus the 15 dBm undesired LO feedthrough This 17 dB difference between desired and undesired energy results in a maximum 0 1 dB shift in the signal generator s RF output level Chapter 4 79 Solving Problems If You Encounter a Problem Signal Loss Occurs While Working with Spectrum Analyzers The effects of reverse power when using the signal generator with a spectrum analyzer that does not have preselection capability can cause problems with the signal generator s RF output Some spectrum analyzers have as much as 5 dBm LO feedthrough at their RF input port at some frequencies If the frequency difference between the LO feedthrough and the RF carrier is less than the ALC bandwidth typically 10 KHz CW and 100 kHz for modulated signals the LO s reverse power can cause amplitude modulation of the signal generator
62. Preset N A Range N A Location Page 243 Remarks None Ref Osc Coarse Supported All This softkey is provided for adjusting the internal reference oscillator Refer to the calibration guide for more information Preset N A Range N A Location Page 248 Remarks This adjustment is intended for use by service personnel Chapter 5 199 Key Reference R Ref Osc Fine Supported All This softkey is provided for adjusting the internal reference oscillator Refer to the calibration guide for more information Preset N A Range N A Location Page 248 Remarks This adjustment is intended for use by service personnel Ref Oscillator Source Auto Off On Supported All This softkey toggles the operating state for the automatic source selecting function When this function is turned on the signal generator detects when a valid reference signal is present at the 10 MHz IN connector and automatically switches from internal to external reference operation When this function is turned off the signal generator uses the internal reference only even if an external reference is connected Preset On Choices Off or On Location Page 239 Remarks None Reference Oscillator Adjustment Supported All Use this softkey to access a menu of keys that are provided for adjusting the internal reference oscillator Preset N A Range N A Location Page 248 Remarks This adjustment is intended for use by service personnel Refer to the c
63. Range N A Location Page 232 Remarks The routine will execute only if RF is on and ALC is off 134 Chapter 5 Key Reference D Dual Sine Supported PSG A Series Use this softkey to access a menu of choices that enables you to set the dual sine amplitude modulation waveform for the internally generated ac coupled signal You can set the rates for two separate tones according to modulation type IntheAM menu you can set the depth for Internal 1 and also set a ratio of the tone 2 depth to the tone 1 depth IntheFM menu you can set the deviation for the selected modulation path and also set a ratio of the tone 2 FM deviation to the tone 1 FM deviation In the PM menu you can set the frequencies for two separate tones e In addition you can set a ratio of the tone 2 LF amplitude to the tone 1 LF amplitude Preset N A Range N A Location Page 230 Page 235 Page 237 Page 240 Remarks None Dwell Type List Step Supported All This softkey toggles the dwell time for the list sweep points between the values defined in the list sweep and the value set for step sweep Choose List to sweep with dwell times that you have defined in the list sweep Choose Step and you will sweep each point in the list with a dwell time set by the Step Dwell softkey in the Configure Step Sweep menu NOTE The dwell time does not begin until the signal generator has settled for the current frequency and or amplitude change When the signal gener
64. Select Seq E Add Comment To SeqlO Regc007 Delete SeqlO ReglO0I Delete All Regs in SeqC0 Delete All Sequences A Changes to Re SAVE Seq 0 Reg 00 when pressed Activate by pressing Select Reg gt enter value gt Enter Switches to Edit Comment In Seq n Reg nn after adding a commentto a register Activate by pressing Select Reg gt enter value gt Enter pe931a 244 Chapter 6 Menu Maps Sweep List Sweep L st Page 1 of 2 Sweep rata Freq Start Sneep Type Lise Freq Freq Stop Sheep Repeat Amel Start single HEMA Ampl A Single Sweep Freq amp Amel Arel Stop Configure Points Step Sweep Configure S Dell List Sweep tep More 1 of 2 os fen Free Run Edit Item Enter Point Trigosr Trigger Key Insert Row Goto Top Row apa Node Delete Row Goto Middle Row Manual Point Goto Bottom Row A x x x xTrioger In SHeep Direction Polarit Insert Item Page Up Trigger Out Polarit Delete Item Page Down Neo aa More More 2 of 2 1 of 2 Activate by pressing Sweep gt Freq orAmpl or Freq amp Amp activate by pressing More 2 of 2 gt Sweep gt Freq or Ampl or Freq amp Amp Active when Manual Mode is On EEEE Active by pressing Ext pegi0a Chapter 6 245 Menu Maps Sweep List Page 20f2 A Load Store Load List From Step Sheep Dwell Type Step Preset List More 2 of 2 Confirm Preset Load From Selected
65. T REF 13 EXT1LO 95 111 148 EXT1LO HI 12 EXT2LO 95 111 148 EXT2LO HI 13 FM 13 L listener mode 13 MOD ON OFF 13 OVEN COLD 13 PULSE 13 R remote 13 RF ON OFF 13 S service request 13 SWEEP 13 T talker mode 13 UNLEVEL 13 UNLOCK 13 ARMED annunciator 12 arrow keys 10 ATTEN HOLD annunciator 12 attenuator configuration 58 118 212 hold present setting 119 attenuator hold mode 29 ATTN HOLD annunciator 29 automatic leveling control See ALC AUXILIARY INTERFACE connector 16 backspace key 187 baud rate 52 102 103 104 105 203 buffer RS 232 reset 52 C connectivity See remote control connectors input 10 MHZIN 16 AC power receptacle 15 EXT LINPUT 7 EXT 2INPUT 8 PULSE TRIGGER GATE INPUT 10 TRIGGER IN 17 interface AUXILIARY INTERFACE 16 GPIB 15 LAN 16 RS 232 16 SOURCE MODULE 16 output 10 MHz OUT 16 LF OUTPUT 8 PULSE SYNC OUT 9 PULSE VIDEO OUT 9 RF OUTPUT 9 SOURCE SETTLED OUTPUT 17 SWEEP OUT 16 TRIGGER OUT 17 contrast hardkeys decrease 10 increase 10 correction array user flatness configuration 61 load from step array 62 viewing 63 See also user flatness correction correction flatness See user flatness correction 254 coupling M deviation multipath 93 AM depth multipath 109 external source 139 factor external detector 55 140 FM deviation multipath 146 D data storage description 44 filetypes 44 trouble See problem
66. TOP R W socios rr AR E E A 158 PI ANA Sp cect ie apc ia ed ww dto aah ds aa eh Geom da 158 PBR 252 LAN oc bed lee a eee ma mee A ee ROR mais Gomi 159 GPIB Listener Mod cio o o stn Aden das ah es in es ea an a ed 159 Ftc oy aa ea ch dhs eS vd nat A we a rr dar BR sha AeA oe Hak oa ak 160 HSP certs Tear re eee er ee errr da eee ee 160 Hap Mode Sine COs cad rada 160 A 161 Postre Vida a E a Se aes 161 Muir AA 162 A A LENET ee 162 INSTA ici adidas adhe ii 162 Insatt ROW ocurrir AAA ARA A 162 O 163 Instrument AUSMEES ase dora 164 Contents Instrument Info Help Mode oocococcococn eee 164 a AA O epee ah EGA RS peau dee gues 165 INES ene ere ee ae ne ere were ee ear ere re AAA AAA A 165 o o ioci canine ooh egee O wanS wee hea R aad 166 INE Trigg ed 2 ccna bee ew eee ebeede oboe sewed whee dee ee Pe we EOE HE Reeds 167 ING hal wai iwet A Sie a eee EA wee te ue 167 he o gt e Eee esas A Aa 168 WRU ENA TETEE hi ho A hee Belen ti Sli le ee i ada Ju 168 Meenal MEE capaci ol eR oR AA we eee 168 Internal Manto 2 vc cre ec keeenies ee erre RA AA 169 Mtenal Ref ERAT ca cs iba an edison dia ao ace A id Radi bh den Sea 169 Meana SMS ccna i de hes A khan drake PORE RAAA Ra E MARR DIRA 169 lingers deca ds oie ceed eh CoRR eee ROR RaSh he a Eee cowed 170 IP BOM A O LEA REE eae e eRe 170 CeCe ree eee eT eT ee Teer eT TT ee Tee ree eee ee eee 171 Keep Previa COMING lb yada y ides iel da whee debe whos Da A es 171 DORENGO A AAA AA AA 1
67. User s Guide Agilent Technologies PSG Family Signal Generators This guide applies to the signal generator models and associated serial number prefixes listed below Depending on your firmware revision front panel operation may vary from descriptions in this guide E8241A US4124 E8244A US4124 E8251A US4124 E8254A US4124 ots Agilent Technologies Part Number E 8251 90023 Printed in USA J uly 2001 Copyright 2001 Agilent Technologies Contents 1 Signal Generator Overview 0oococcccoco eee 1 Signal Generator Models and Features 000s cece eee ene e tenes 2 PSG L Series Features scores Fie Gaede dw eed Oke eH He Oa UES TERE RRs 2 PSG A Sees PsbS oi ust auradadotiawekiuvbiedanda A AA 3 OPUONS 2 465 dee sth ee OHS dis AAA 4 Prone Panel iaaiiai shaira rn ape Wc a th ea ran he 8 eh en Ri Had ne Reh mei ea 5 LA rra ee NR e RRL MEAD PoE MAR RS EAR Ne RGR 6 A A a aa A eta ho Raa A 6 ca eee ee er ee ee eee ee ree eee ee eae ee ee re ee ee ree re a eee 6 4 AMPITUGE KY y corro rs ean been dayee A PES eRe Ra Oe ERR Ee Oe 6 Si IPTEQUENES KE Gauci key A BA os 6 OC BAe cbf cb ce nan ca AERA eR ea AUR E wee alae 6 Fae EEE erihee E hm domed E Ae ech ews EEE EEE EE 7 BWR EE e aa a i Ge a oh he er 7 O Men A ddad ghee tS ae ad ee Neha eae re eweeRed Tas 7 W cbs cl E ee er rr ee ee ee a ee eee ee ee ee ee eee ee eee eee 7 11 EXT LINPUTIPSGA Moria do asd df pov ato dee dees 7 12 EXT E IN PT PIGA Only eos the awn A roe
68. address 51 158 listener mode 65 159 setup 51 159 LAN hostname 51 161 IP address 51 170 setup 51 172 local area network See LAN local operation 180 parallel SeeGPIB RS 232 baud rate 52 203 buffer reset 52 201 echo 52 203 pacing transmit receive 220 setup 52 timeout 52 204 transmit receive pace 52 220 serial SeeRS 232 internal source limitations 33 multipath configuration 36 M 94 AM 36 110 FM 147 waveforms available 33 Internet Protocol address signal generator SeelP address IP address 51 See also hostname K key descriptions signal generator 91 227 keypad numeric 8 knob 6 257 Index L L listener mode annunciator 13 label area softkey 14 LAN connector 16 hostname 51 161 IP address 51 170 setup 51 172 LEDs line power green 9 standby yellow 9 leveling external description 54 detector 140 coupling factor 140 detectors and couplers splitters using 54 attenuation and ALC level balancing 58 connection diagram 55 diode detector response typical 56 equipment required 54 external detector coupling factor configuration 56 leveling mode configuration 55 Option 1E 1 signal generators with 58 signal generator configuration 55 mm wave source modules using 29 58 connection diagrams 30 31 equipment required 29 signal generator configuration 31 mode 172 source module 213 leveling internal 167 mode 172 Seealso ALC and po
69. al Preset N A Range N A Location Page 230 Page 235 Page 237 Page 240 Remarks The selected waveform applies only to whichever path configuration you have currently selected Single Sweep Supported All Usethis softkey to arm the sweep The ARMED annunciator will turn on in the display The signal generator will begin the sweep as soon as the sweep trigger is received Single Sweep sets the power and the frequency to the first point of the sweep while it is not initiated or is waiting for the sweep trigger If you have set the sweep trigger to Immediate a sweep is initiated as soon as you arm the sweep Preset N A Range N A Location Page 245 Remarks This key is disabled when Sweep is set to Off 212 Chapter 5 Key Reference S Source Module Supported All This softkey enables you to use an external source module When you enable the source module it also enables the external leveling mode Preset Off Choices Off or On Location Page 232 Remarks None Source Module Off On Supported All This softkey enables and disables the external source module When you enable the source module it also enables the external leveling mode for the automatic leveling control Preset Off Choices Off or On Location Page 239 Remarks None Square Supported PSG A Series This softkey enables you specify square as the modulation waveform for the internally generated ac coupled signal Preset N A Range N A Location Page 230 Page 235 Pag
70. al Coupler SIGNAL GENERATOR NEGATIVE DETECTOR Leveled Output DIRECTIONAL COUPLER Configure the Signal Generator Press Preset Press Frequency gt 10 gt GHz Press Amplitude gt 0 gt dBm Press RF On Off u buno Press Leveling Mode gt External Detector This deactivates the internal ALC detector and switches the ALC input path tothe front panel ALC INPUT connector The ExT indicator is activated in the AMPLITUDE area of the display NOTE For signal generators with Option 1E1 notice that the ATTN HOLD attenuator hold annunciator is displayed During external leveling the signal generator automatically uncouples the attenuator from the ALC system for all external leveling points Whilein this mode RF output amplitude adjustment is limited to 20to 25 dBm the adjustment range of the ALC circuitry For more information see External Leveling with Option 1E 1 Signal Generators on page 58 6 Observe the coupling factor printed on the directional coupler at the detector port Typically this value is 10 to 20 dB Enter the positive dB value of this coupling factor into the signal generator Chapter 3 55 Optimizing Performance Using External Leveling 7 Press More 1 of 2 gt Ext Detector Coupling Factor gt 16 or the positive representation of the value listed at the detector port of the directional coupler gt dB Leveled output power is now available at the output of the direct
71. al for use as a pulse or trigger input The damage levels are 5 V rms and 10 Vp The nominal input impedance is 500 26 Arrow Keys The up and down arrow hardkeys are used to increase or decrease a numeric value step through displayed lists or to select items in a row of a displayed list Individual digits or characters may be highlighted using the left and right arrow hardkeys Once an individual digit or character is highlighted its value can be changed using the up and down arrow hardkeys 27 Hold Key This hardkey blanks the softkey label area and text areas on the display Softkeys arrow hardkeys the knob the numeric keypad and the Incr Set hardkey have no effect once this hardkey is pressed 28 Return Key This hardkey will return you one level back from your current softkey menu level to the previous softkey menu level It enables you to step back through the menus until you reach the first menu you selected 29 Display Contrast Decrease Key This hardkey when pressed or held causes the display background to darken 30 Display Contrast Increase Key This hardkey when pressed or held causes the display background to lighten 31 Local Key This hardkey is used to deactivate remote operation and return the signal generator to front panel control 32 Preset Key This hardkey is used to set the signal generator to a known state factory or user defined 10 Chapter 1 Signal Generator Overview Front Panel Dis
72. al generator between last and preset If you choose Last each time you cycle power to the signal generator it will turn on in the same condition as when you turned power off If you choose Preset each time you cycle power to the signal generator it will turn on in either the factory defined preset condition or in a user defined preset condition You make the choice between factory and user defined preset with the Preset Normal User softkey Preset N A Choices Last or Preset Location Page 247 Remarks If last is active the signal generator must not receive commands for at least 3 seconds before the power is turned off to guarantee that the most recent state is saved The power on state is not affected by a preset or by a power cycle Power On Preset Supported All Use this softkey to access a menu of choices for power on and preset conditions Refer to Power On Last Preset on page 192 Preset Normal User on page 194 and Save User Preset on page 207 Preset N A Choices Power On Last Preset Preset Normal User Save User Preset Location Page 247 192 Chapter 5 Key Reference P Power Search Supported All Use this softkey to access the Power Search Manual Auto softkey Power search is an internal calibration routine that improves output power accuracy when the ALC is off Preset N A Range N A Location Page 232 Remarks The ALC Off On softkey must be set to Off in order to engage power search m
73. al generator is in remote GPIB operation This annunciator indicates when the RF signal is present RF ON at the RF OUTPUT or if the RF signal is not present RF OFF at the RF OUTPUT Either condition of this annunciator is always visible in the display This annunciator appears when the signal generator has generated a service request SRQ over the GPIB interface This annunciator appears when the signal generator is sweeping in list or step mode This annunciator appears when the signal generator is in talker mode and is transmitting information over the GPIB interface This annunciator appears when the signal generator is unable to maintain the correct output level The UNLEVEL annunciator is not necessarily an indication of instrument failure Unleveled conditions can occur during normal operation A second annunciator ALC OFF will appear in the same position when the ALC circuit is disabled This annunciator appears when any of the phase locked loops are unable to maintain phase lock You can determine which loop is unlocked by examining the error messages Chapter 1 13 Signal Generator Overview Front Panel Display 4 Amplitude Area The current output power level setting is shown in this portion of the display Indicators are also displayed in this area when amplitude offset is used amplitude reference mode is turned on external leveling mode is enabled a source module is enabled and when user flatn
74. al sine AM waveform Preset 400 0 Hz Range 0 5 Hz 1 0 MHz minimum increment allowed is 0 5 Hz Location Page 231 Remarks None AM Type Lin Exp Supported PSG A Series This softkey enables you to set the amplitude modulation type to linear percent volt or exponential dB volt Preset Lin Choices Lin or Exp Location Page 230 Remarks None AM Waveform Supported PSG A Series Use this softkey to access a menu of choices that enables you to select an amplitude modulation waveform that can be produced by the internal modulation source Preset Sine Choices Sine Noise Triangle Square Dual Sine Ramp Swept Sine Location Page 230 Remarks The waveform selection applies only to whichever AM path configuration you have currently selected Dual Sine and Swept Sine are available for Internal 1 source only 114 Chapter 5 Key Reference A Ampl Supported All This softkey enables you to set the signal generator to sweep amplitude data only The frequency is set at a constant value determined by the Frequency hardkey Preset N A Range N A Location Page 245 Remarks You can define a sweep containing both amplitude and frequency information and still choose to sweep only amplitude Ampl Offset Supported All This softkey enables you to change the value for amplitude offset An amplitude offset changes the value shown in the amplitude area of the display but does not affect the output power For example if the current
75. alibration guide for more information 200 Chapter 5 Key Reference R Rename File Supported All This softkey enables you to rename the highlighted file in the displayed catalog of files When you have entered the new file name press the Enter terminator softkey If you have changed your mind press the Return hardkey Once you press Enter the new file is stored and displayed immediately in the catalog list Preset N A Range N A Location Page 249 Remarks None Re SAVE Seq n Reg n Supported All This softkey enables you to save the current instrument state to the selected register and sequence If data has already been stored to this location it will be overwritten The signal generator state includes all parameter selections except list sweep data and selections which are kept as states that are not affected by a preset or a power cycle Preset N A Range N A Location Page 244 Remarks None Reset RS 232 Supported All Use this softkey to perform a clean up on the RS 232 buffer This clean up discards any unprocessed SCPI input received over RS 232 and places the RS 232 connection in a mode which can detect the optional remote interface Preset N A Range N A Location Page 247 Remarks All other RS 232 communication parameters are unaffected Chapter 5 201 Key Reference R Restore Factory Defaults Supported PSG A Series with Option UNJ This softkey re sets the bandwidth of the reference oscill
76. amplitude and dwell time points You will create a step sweep and then you will use these points as the basis for a new list sweep Step Sweep Step sweep allows you to enter RF output start and stop frequencies and amplitudes a number of equally spaced points steps to dwell upon and the amount of dwell time at each point When a step sweep is activated the signal generator will sweep the RF output based on the values entered for the parameters listed above The frequency amplitude or frequency and amplitude of the RF output will sweep from the start amplitude frequency to the stop amplitude frequency dwelling at equally spaced intervals defined by the Points softkey value for the configured step dwell time Step sweep provides a linear progression through the start to stop frequency and or amplitude values You can toggle the direction of the sweep up or down When the Sweep Direction Down Up softkey is set to Up values are swept from the start frequency amplitude to the stop frequency amplitude Set to Down values are swept from the stop frequency amplitude to the start frequency amplitude 24 Chapter 2 Fundamental Operation Configuring the RF Output List Sweep List sweep allows you to create a list of arbitrary frequency amplitude and dwell time values and sweep the RF output based on the entries in the List Mode Values table Unlike a step sweep that contains linear ascending descending frequency and amplitude valu
77. any one of the modulation sources Internal 1 Internal 2 Ext1 or Ext2 All modulation types can be simultaneously enabled except FM with M AM FM and PM can sum simultaneous inputs from any two sources Any given source can only be routed to one activated modulation type Preset AM Path 1 Choices AM Path 1 AM Path 2 Location Page 230 Remarks The RF carrier is available at the RF OUTPUT connector when you set RF On Off to On Set Mod On Off to On to modulate the RF carrier with the modulations that you have enabled 110 Chapter 5 AM Rate Supported Key Reference A PSG A Series This softkey enables you to change the frequency for the internally generated modulation source Preset Range Location Remarks AM Source Supported 400 0 Hz 0 5 Hz 100 0 kHz minimum increment allowed is 0 5 Hz 0 5 Hz 1 0 MHz if sinewave is selected as the internal waveform Page 230 The new value of AM rate applies only to the AM configuration you have currently selected PSG A Series Use this softkey to access a menu of choices that enables you to select either an internally generated or an externally applied source for amplitude modulation The internal modulation is always ac coupled Preset Choices Location Remarks Internal 1 Internal 1 Internal 2 Extl Ext2 Page 230 A 1 0 volt peak voltage input is required for calibrated AM depth settings The EXT 1 LO HI andExXT 2 LO HI display annunciators will turn on if the p
78. atically 59 correction array creating manually 63 description 59 mm wave source module with 66 recalling data from memory 64 saving data to memory 64 EXT 1INPUT connector 7 EXT 2 INPUT connector 8 EXT annunciator 12 EXT REF annunciator 13 EXT1 annunciators HI 12 95 111 148 LO 12 95 111 148 255 Index EXT2 annunciators HI 13 95 111 148 LO 13 95 111 148 F fail safe recovery sequence description 85 failures See problems features PSG A 3 PSG L 2 files instrument state See instrument state register memory catalog See memory catalog firmware upgrading 87 flatness correction See user flatness correction FM annunciator 13 configuration example 37 coupling external source 139 DCFM calibration 127 description 33 deviation 37 145 dual sine amplitude second tone 150 rate first tone 150 rate second tone 150 hardkey 7 143 menu map 235 multipath deviation coupling 146 selection 147 operating state 146 rate 37 147 source 33 148 swept sine start rate 148 stop rate 149 sweeps second 149 trigger 149 waveform 151 See also waveforms function generator frequency display area 12 hardkey 6 155 LF output 42 start and stop swept sine 43 menu map 239 modulation See FM multiplier 152 RF output 20 155 increment 21 23 162 offset 22 153 phase adjustment 107 phase reference 190 reference 21 153 154 sweep 151 152 sweep with amp
79. ation pulse modulation a dual function generator that includes the following features 50Q low frequency output O to 3 Vp selectable waveforms sine square positive ramp negative ramp triangle gaussian noise uniform noise swept sine and dual sine variable frequency modulation rates variable triggering in list and step sweep modes auto external single or remote a pulse generator that includes the following features external pulse internal square wave selectable internal pulse modes free run triggered with delay doublet and gated triggered with delay doublet and gated require an external trigger source adjustable pulse width adjustable pulse period adjustable pulse delay external modulation inputs for AM FM and M simultaneous modulation configurations Chapter 1 3 Signal Generator Overview Options Options Table 1 2 and Table 1 3 show the available hardware and accessory options for both the PSG A and PSG L Series signal generators Table 1 2 Signal Generator Hardware Options Option Description 1E1 add output step attenuator 1EA add high RF output power 1ED add Type N RF output connector 20 GHz models only UNJ add improved close in phase noise W50 add 5 year warranty Table 1 3 Signal Generator Accessory Options Option Description ABA PSG Documentation Set English Language CD1 CD ROM Documentation PDFs of Opt
80. ation or wideband phase modulation path deviation and deviation coupling source rate waveform and DCFM DC M calibration Preset N A Range N A Location Page 235 Remarks None Chapter 5 143 Key Reference F FM PM Normal High BW Supported PSG A Series This softkey toggles between the menus for frequency modulation FM normal phase modulation PM and wideband phase modulation PM High BW e Normal PM lets you set the phase deviation as high as N x 80 radians with a 3 0 dB bandwidth at 100 0 kHz Refer to Table 5 1 on page 145 for N values High BW M provides increased bandwidth while restricting the maximum deviation to deviation settings up toN x 8 radians Refer to Table 5 1 for N values Preset FM Choices FM PM Normal M High BW Location Page 237 Remarks The deviation limits are dependent upon the carrier frequency This limiting occurs only when the modulation is turned on 144 Chapter 5 FM Dev Supported PSG A Series Key Reference F This softkey enables you to set the frequency modulation deviation for the currently selected modulation path The range of values allowed depends on the carrier frequency The maximum peak deviation for a frequency is calculated by multiplying N times 8 0 MHz Table 5 1 lists the values for N and the resulting maximum peak deviations Table 5 1 Carrier Frequency 250 kHz to lt 250 MHz gt 250 MHz to lt 500 MHz gt 500 MHz to lt 1 GHz gt 1GHzto
81. ation Page 247 Remarks The error queue will hold up to 30 error messages before deleting the oldest error message to make room for the 31st error message 138 Chapter 5 Key Reference E Ext Supported All This softkey is one of the choices in the Sweep Trigger Point Trigger and AM FM and M Sweep Trigger menus Your available settings depend on which trigger menu you have selected e Inthe Sweep Trigger menu choosing Ext enables you to trigger a full sweep on either the negative or positive edge of a signal applied tothe TRIGGER IN rear panel connector e InthePoint Trigger menu choosing Ext enables you to trigger a point by point sweep on either the negative or positive edge of a signal applied to the TRIGGER IN rear panel connector IntheAM FM and M sweep trigger menus choosing Ext enables you to trigger a swept sine amplitude frequency or phase modulation on either the negative or positive edge of a signal applied to the TRIGGER IN rear panel connector Preset N A Range N A Location Page 231 Page 236 Page 238 Page 241 Page 245 Remarks Set the polarity of the trigger signal using the Trigger In Polarity Neg Pos softkey Ext Coupling DC AC Supported All Usethis key to toggle the coupling for the externally applied modulation input signal between dc and ac Preset DC Choices DC or AC Location Page 230 Page 235 Page 237 Remarks The command does not change the currently active source or sw
82. ator has settled a trigger signal is transmitted through the rear panel SOURCE SETTLED OUTPUT connector Preset List Choices List or Step Location Page 246 Remarks When you are sweeping using the step sweep dwell time the list sweep pa time values are grayed out to indicate that they are not being Chapter 5 135 Key Reference E E E4416A Supported All This softkey enables you to select an Agilent E4416A power meter to perform the automated user flatness correction process Preset N A Range N A Location Page 233 Remarks None E 4417A Supported All This softkey enables you to select an Agilent E4417A power meter to perform the automated user flatness correction process Preset N A Range N A Location Page 233 Remarks None E 4418B Supported All This softkey enables you to select an Agilent E4418B power meter to perform the automated user flatness correction process Preset N A Range N A Location Page 233 Remarks None 136 Chapter 5 E 4419B Supported Key Reference E All This softkey enables you to select an Agilent E4419B power meter to perform the automated user flatness correction process Preset Range Location Remarks N A N A Page 233 None E dit Comment In Seq n Reg nn Supported All This softkey enables you to edit a comment that is associated with a register in use The register number is listed in the text area of the display and the comment is shown immediately foll
83. ator set the help mode and power on state and access the memory catalog menu Preset N A Range N A Location Page 247 Remarks None Chapter 5 223 Key Reference U Update in Remote Off On Supported All This softkey toggles the operating state of the display updating when the remote control bus is in remote mode When toggled on commands executed via the remote control bus will update the signal generator display accordingly When toggled off commands executed via the remote control bus will not update the display Preset Choices Location Remarks User Flatness Supported Off Off or On Page 247 This key is not affected by a preset However it resets to off when the power is cycled All This softkey enables you to specify that only user flatness correction files be listed in the catalog of files currently displayed Preset Range Location Remarks N A N A Page 232 Page 249 None 224 Chapter 5 Key Reference V V View Details Supported All This softkey enables you to view detailed information about the highlighted test Refer to the troubleshooting section in the service guide for more information Preset N A Range N A Location Page 250 Remarks This is intended for use by service personnel View Next Error Message Supported All Use this softkey to display the next error message in the queue The first error message is the oldest error There may be more than
84. ator to the factor y defined default state The default value for the internal reference bandwidth is 125 Hz The default value for the external reference bandwidth is 25 Hz Preset N A Range N A Location Page 248 Remarks None Return Supported All Use this hardkey to move from your current softkey menu to the menu that precedes it or to cancel an active function entry When you are at the preset state the Return hardkey has no function Preset N A Range N A Remarks The return key has autorepeat capability Hold it down and you are moved repeatedly back through the menus until you either release the key or you reach the preset state RF On Off Supported All This hardkey toggles the operating state of the RF signal at the RF OUTPUT connector Although you can configure and engage various modulations no signal is available at the RF OUTPUT connector until RF On Off is set to On An annunciator is always turned on in the display to indicate whether RF is turned on or off Preset Off Range On or Off Remarks None 202 Chapter 5 Key Reference R RS 232 Baud Rate Supported All Use this softkey to access a menu of choices that enables you to set the baud rate in bits per second for the rear panel RS 232 connector labeled AUXILIARY INTERFACE Preset Choices Location Remarks N A 57600 38400 19200 9600 4800 2400 1200 300 Page 247 Once set the baud rate is not affected by a preset or by a power cyc
85. ators with Option 1E 1 contain a step attenuator prior tothe RF output connector During external leveling the signal generator automatically holds the present attenuator setting to avoid power transients that may occur during attenuator switching as the RF amplitude is changed A balance must be maintained between the amount of attenuation and the optimum ALC level to achieve the required RF output amplitude For optimum accuracy and minimum noise the ALC level should be greater than 10 dBm For example leveling the CW output of a 30 dB gain amplifier to a level of 10 dBm requires the output of the signal generator to be approximately 40 dBm when leveled This is beyond the amplitude limits of the ALC modulator alone resulting in an unleveled RF output Inserting 45 dB of attenuation results in an ALC level of 5 dBm well within the range of the ALC modulator NOTE In the example above 55 dB is the preferred attenuation choice resulting in an ALC level of 15 dBm This provides adequate dynamic range for AM or other functions that vary the RF output amplitude To achieve the optimum ALC level at the signal generator RF output of 40 dBm for an unmodulated carrier follow these steps 1 Press Set Atten gt 45 gt dB 2 Press Set ALC Level gt 5 gt dBm This sets the attenuator to 45 dB and theALC level to 5 dBm resulting in an RF output amplitude of 40 dBm as shown in the AMPLITUDE area of the display To obtain flatness
86. cial characters 106 Chapter 5 Key Reference A Adjust Phase Supported All This softkey enables you to change the phase of the RF output signal The change is relative to whatever phase the signal generator locked to the last time a frequency change was performed For this reason the phase adjustment does not survive changes in frequency and must be readjusted If you first press Phase Ref Set the current output phase is set as a zero reference and any subsequent phase adjustment is displayed as relative to the zero reference Preset 0 000 radians Range 3 141 radians or 180 degrees Location Page 239 Remarks Phase adjustment cannot be used with frequency or phase modulation Adjustments to phase can be made in 0 1 degree increments ALC BW Supported All Usethis softkey to access a menu of choices that enables you to select the bandwidth of the automatic leveling control ALC loop Preset Auto Choices Auto 100 Hz 1kHz 10 kHz 100 kHz Location Page 232 Remarks A wider bandwidth will give faster settling time A narrower bandwidth improves residual AM noise Chapter 5 107 Key Reference A ALC Off On Supported All This softkey toggles the operating state of the automatic leveling control ALC circuit TheRF output power of the signal generator is constantly monitored and controlled by the ALC circuit Its purpose is to hold output power at the desired level in spite of drift due to temperature and ti
87. cted sequence is displayed in the active entry area Change the number to 4 and press the Enter terminator softkey Sequence 4 is now displayed in all softkeys that specify a sequence in this menu Preset 0 Range 0 9 Location Page 243 Page 244 Remarks None Self Test Supported All This softkey accesses an automatic internal diagnostic test that checks for detectable hardware failures If there are hardware failures in the signal generator refer to the troubleshooting section of the service guide Preset N A Range N A Location Page 250 Remarks This key is intended for use by service personnel Set ALC Level Supported All with Option 1E1 This softkey enables you to change the ALC level The output power is the ALC level minus the attenuator setting Preset 20 00 dBm Range 20 00 dBm to 25 00 dBm Location Page 232 Remarks Ae key is active only when you have toggled the Atten Hold Off On key to On Chapter 5 211 Key Reference S Set Atten Supported All with Option 1E1 This softkey enables you to change the amount of attenuation in 5 0 dB steps The output power s the ALC level minus the attenuator setting Preset 105 00 dB Range 0 00 dB 105 00 dB Location Page 232 Remarks This key is active only when you have toggled the Atten Hold Off On key to On Sine Supported PSG A Series This softkey enables you to specify sine as the modulation waveform for the internally generated ac coupled sign
88. cy value for point 2 becomes highlighted after you press the terminator softkey 6 Using the arrow keys highlight the frequency value in row 4 7 Press Edit Item gt 545 gt MHz This changes the frequency value in row 4 to 545 MHz Highlight any column in the point 7 row and press Insert Row This adds a new point between points 7 and 8 A copy of the point 7 row is placed between points 7 and 8 creating a new point 8 and renumbering the successive points Chapter 2 27 Fundamental Operation Configuring the RF Output Highlight the frequency item for point 8 then press Insert Item Pressing Insert Item shifts frequency values down one row beginning at point 8 Note that the original frequency values for both points 8 and 9 shift down one row creating an entry for point 10 that contains only a frequency value the power and dwell time items do not shift down The frequency for point 8 is still active 10 Press 590 gt MHz 11 Press Insert Item gt 2 5 gt dBm This inserts a new power value at point 8 and shifts down the original power values for points 8 and 9 by one row 12 Highlight the dwell time for point 9 then press Insert Item A duplicate of the highlighted dwell time is inserted for point 9 shifting the existing value down to complete the entry for point 10 Activating List Sweep for a Single Sweep 1 Press Return gt Sweep gt Freq amp Ampl This turns the sweep on again Noerro
89. e mm wave source module mm wave source module connection diagrams 30 31 external leveling with 58 models 29 66 required equipment 29 signal generator configuration with 31 user flatness correction with 66 MOD ON OFF annunciator 13 Mod On Off hardkey 8 184 modulation amplitude SeeAM annunciators 13 configuring 33 external waveform 141 142 frequency See FM internal 168 169 operating state 184 phase See M pulse 40 status display 185 multi path configuration M 94 AM 36 110 FM 147 multiplier frequency 152 Index N numeric keypad 8 187 O offset amplitude 23 115 frequency 21 153 on off switch 9 operation fundamental 19 52 Option 1E 1 29 options descriptions hardware software 4 informational display 189 output amplitude RF 118 connectors 10MHz OUT 16 LF OUTPUT 8 PULSE SYNC OUT 9 PULSE VIDEO OUT 9 RF OUTPUT 9 SOURCE SETTLED OUTPUT 17 SWEEP OUT 16 TRIGGER OUT 17 frequency RF 155 low frequency See LF output OVEN COLD annunciator 13 overview signal generator 1 17 P pacing transmit receive RS 232 220 performance optimizing signal generator 53 74 phase modulation See M point trigger 121 139 151 221 power meter address GPIB 183 channel selection 183 models 59 selection 191 timeout 183 receptacle AC 15 search 193 execute search 134 mode manual auto 193 sensor models 60 66 switch 9 Preset hardkey 10 193 259 Ind
90. e 1 Freq LF Out Tone 2 Freg LF Out Tone 2 Amel Z Of Peak LF Out Amplitude Into 50 Ohms Square More 2 of 2 Activate by pressing LF Out Source gt Function Generator 1 or Function Generator 2 Not active when Function Generator 2 is selected Stop SHEEP Sweep Tri Free a Triooer Out Polariti Neg os Uniform Gauss ian pe98a 240 Chapter 6 Menu Maps LF Output Page 20f2 A Free Run Triager Key Active when EXT is selected pe922a Chapter 6 241 Menu Maps Pulse Modulation Pulse Modulation Internal Square Pulse Source Int Free Run Int Free Runa Int Triggered Pulse Period Pulse Width Int Gated e Pulse Delay Ext Pulse Ext Polarity Mic Inverted Activate by pressing Pulse Source gt Internal Square Inactive when Internal Square or Int Triggered or Int Doublet or Ext Pulse is selected Inactive when Internal Square or Ext Pulse is selected Inactive when Internal Square or Int Gated or Ext Pulse is selected pe99a 242 Chapter 6 Menu Maps Recall Recall RECALL Reg Select Seq i Delet oro Le Seqr11 ReglO0 Delete All Regs in Seal 1 Delete All Sequences Active only when Save gt Select Reg gt enter value gt Enter are pressed pe932a Chapter 6 243 Menu Maps Save Save SAVE Save Reg SeqlO RealO0 Select Reg Select Reg available 00
91. e 14 7 IS EIN PDR ra set nc Ri A hp nae th nb Sn dah ne Sead 14 RSS a ee ee ee a ADA a da eee RRA eee ee 15 1 AC Power Receptacle s isormiorcnirr rarai ntr nOn EA A 15 O A a a hae eh 15 SAAB INTERAC Eee CREEL PARLE A eRe Re 16 A en chee eae daeaenh Coteau tebe eRe we hte tay ws 16 SLA cui Chemo Padme on bbe Andee Aceh E herb gehen mainte 16 6 JOMAZOUT isos ra o AA w dy ess A EEE RS 16 POE POW rl ote ad oie al a da 16 B SOURCE MODULE vosscideus teed cee ea e e eae S eS eee Rew EE Ree ee ew EE eS 16 o TRIGGER OUT sre rrote ts eae ise le Reha ela Spi se oes enn eet ann nt 17 IA TRIGGER a ink tex shit Sag aora Bd gh sn ACA se lle ojal a ko 17 I SOURCE SETTLED OUTPUT a AAA ee be RE 17 2 Fundamental Operation lt lt lt lt 5 lt lt lt lt cisnes 19 Conigurning the RF AOULPME gt ns o eee eke eee oe 20 Configuring a Continuous Wave RF Output 0 0 cece eee eens 20 Configuring a Swept RF OUIGUE 2254 2404c0 0berteed keer bb ec e md 24 Using the Signal Generator with a M M Wave Source Module 29 Configuring Analog Modulation PSG A Series Only 0 0 00 cece eee ees 33 ANM FM oti EM SOURS sia da aaa AAA 33 o A kde buad in Renda hepa A A 34 COIN etic tal Coe EA A enka de 35 A ULNAR A e Bah RE a Ranch e nap E ec RC Raa ig nee andl 37 Configuring bM ieieceses ded edaees IEPENE LHR Ses Poe AE 38 Configuring Pulse ModulabiON s crer ccc c eed ane a ae ead 40 Configuring the LF Output PSG A Serie
92. e 210 SOIC RAG coca ck che Vee ed ine PHO DEO kE PEE PAO ES Dee dEOEE EOE e Eee EES 210 BO A ered stad oe SE ceahed Sh a Mensa hee ade Be 211 Sel BE cura be bah he oras WRU Da hon RRR ODA ida WH 211 SELALE Deel sce deka nese A PR ee eee SEA 211 Ser Riise bad Cah tam ie Ae ee Cee ASTET T awe me 212 xiii Contents A Sn ee en dines Dy a iden eh tee el an ch i fe 212 pe AAA O E RAD Ae kab Re Ries 212 Source Module pccuv ieee iGeee ee es ORE TIVA DORE ERE Ke OE eee we OS 213 Source MOM Ol sua cee bata edhe gene hee ta Aaa 213 SAURA ARA ee Ss ee RAR A AO ee 213 A eee PRR ae iia kana 214 SEDYE gad Gate tach in ah iie isa Rela Mig aaah ANE aa Meise Aes RR enema tail 214 SUI OOO RAI ee heh est a Dc e lg iS e res 215 trato El Burst a 215 Store Ref Ose SQHING isso errar e A en eens 216 i ee ee ee ee eee Ce re eee er re ee ee eee ee re 216 Swee Diredion Da tak and RAL DAEs See Ree A LARD Rae Re 216 Sweep Repeat Single Cont o nas K4i be Re ade BA OO ie a eee eRe 217 Sean O ea a eee Aiea mates 217 Sweep Type List Step sooiromsioscr incor ir RO HEE EB HS 218 ANO ISE rara da sa tian 218 SWEPE SING coc cidde ve esc beeen ar A 219 TD ese ie th daha O etn tides om Hera 220 Trah Rew Pace NONE ROM uscar A nd uh ewe wes 220 TSH os 2a token E deen ain E Cee ae aene 220 o s 335 itd A eadreideted cadens A haere meds 221 Trigger KEY cece cesar s ec neue IA ee Eee ER EOE AAA EER EE 221 Triager Im POSrity Neg POS cia ha Syd a ic a eee was 222 Tigger Q
93. e 237 Page 240 Remarks The selected waveform applies only to whichever path configuration you have currently selected Chapter 5 213 Key Reference S State Supported All This softkey enables you to specify that only signal generator instrument state files be listed in the catalog of files currently displayed Preset N A Range N A Location Page 249 Remarks None Step Dwell Supported All This softkey enables you to set the dwell time for each point of a step sweep The dwell time is the amount of time the sweep is guaranteed to pause after setting the frequency and power for the current sweep list point NOTE The dwell time does not begin until the signal generator has settled for the current frequency and or amplitude change When the signal generator has settled a trigger signal is transmitted through the rear panel SOURCE SETTLED OUTPUT connector Preset 2 0 msec Range 1 0 msec 60 0 sec in 1 0 msec increments Location Page 245 Remarks Dwell time is used when the point trigger is set to Immediate 214 Chapter 5 Key Reference S Step Knob Ratio Supported All This softkey enables you to set the ratio between the increment value of the step keys and the front panel knob For example if you set the increment value for frequency to 1 0 MHz and set the step knob ratio to 10 1 when frequency is the active function the up and down arrow keys will change the frequency in 1 0 MHz steps and the front panel knob wil
94. e N A Location Page 246 Remarks You can have only one sweep list at a time so be certain that you wish to overwrite the existing list Load Store Supported All Usethis softkey to access a menu of choices that enables you to load from and store tables to user files In this menu you can also delete files Preset N A Choices Load From Selected File Storeto File Delete File Goto Row Page Up Page Down Location Page 233 Page 246 Remarks None Local Supported All Use this hardkey to return the signal generator to local front panel control after using remote operation Preset N A Range N A Remarks None 180 Chapter 5 Key Reference L Loop Selected Tests Supported All This softkey is provided for self test diagnostics Refer to the troubleshooting chapter of the service guide Preset N A Range N A Location Page 250 Remarks This key is included for use by service personnel Chapter 5 181 Key Reference M M Manual Mode Off On Supported All This softkey toggles the operating state of the manual mode selection for the current sweep point When Manual Mode is on the selected sweep point controls the frequency and amplitude according to the sweep type Preset Choices Location Remarks Manual Point Supported Off Off or On Page 245 This key is disabled when Sweep Off On is set to Off All This softkey enables you to choose a point in the sweep list When Manual Mode is
95. e instrument state register Press Preset Press the Recall or Save hardkey Notice that the Select Seq softkey shows the last sequence that you used Press Delete All Sequences This deletes all of the sequences saved in the instrument state register 48 Chapter 2 Fundamental Operation Using Table Editors Using Table Editors ThePSG signal generator uses table editors to simplify configuration tasks such as creating a list sweep Using the List Mode Values table editor the following section familiarizes you with basic table editor functionality Press Preset gt Sweep List gt Configure List Sweep The signal generator displays the List Mode Values table editor as shown below Active Function Area Cursor AMPLITUE 140 000 000 000 00 ez 135 00 am NOS UNLEVEL MNLEVEL Ho Insert Row Delete Row List Mode Values Frequency Pouer 135 00 dBm Insert Item Delete Item More 1 of 2 V Table Editor Name Table Items Table Editor Softkeys Active Function Area an area that displays the active table item while its value is edited Cursor an inverse video identifier used to highlight specific table items for selection and editing Table Editor Softkeys keys that select table items preset table values and modify table structures Table Items values arranged in numbered rows and titled columns Chapter 2 49 Fundamental Operation Using Table Editors Table Editor Softkey
96. e mode and sets the current output frequency 700 MHz as the reference value The frequency displayed is 0 00 Hz the frequency output by the hardware 700 MHz minus the reference value 700 MHz The REF indicator is activated and the Freq Ref Off On softkey has toggled to On Press RF On Off The display annunciator has changed from RE OFF to RF ON The RF frequency at the RF OUTPUT connector is 700 MHz Press Frequency gt Incr Set gt 1 gt MHz This changes the frequency increment value to 1 MHz Chapter 2 21 Fundamental Operation Configuring the RF Output 6 Presstheup arrow key This increments the output frequency by 1 MHz The frequency display changes to show 1 MHz the frequency output by the hardware 700 MHz 1 MHz minus the reference frequency 700 MHz and the output frequency changes to 701 MHz 7 Press Freq Offset gt 1 gt MHz This enters a 1 MHz offset The frequency display shows 2 000 000 00 MHz the frequency output by the hardware 701 MHz minus the reference frequency 700 MHz plus the offset 1 MHz The of Fs indicator is activated The frequency at the RF OUTPUT connector is still 701 MHz Setting the RF Output Amplitude 1 Press Preset 2 Observethe AMPLITUDE area of the display in the upper middle of the display The display reads the signal generator s minimum power level This is the normal preset RF output amplitude 3 Press RF On Off The display annunciator changes
97. e the steps in this section and then continue with the user flatness correction tutorial 1 Press More 1 of 2 gt User Flatness gt Configure Cal Array This opens the User Flatness table editor and places the cursor over the frequency value 26 5 GHz for row 1 The RF output changes to the frequency value of the table row containing the cursor and 26 500 000 000 00 is displayed the AMPLITUDE area of the display Observe and record the measured value from the power meter Subtract the measured value from 0 dBm Movethetable cursor over the correction value in row 1 on A W N Press Edit Item gt enter the difference value from step 3 gt dB The signal generator adjusts the RF output amplitude based on the correction value entered 6 Repeat steps 2 through 5 until the power meter reads 0 dBm 7 Use the down arrow key to place the cursor over the frequency value for the next row The RF output changes to the frequency value highlighted by the cursor as shown in the AMPLITUDE area of the display 8 Repeat steps 2 through 7 for every entry in the User Flatness table Save the User Flatness Correction Data to the Memory Catalog This process allows you to save the user flatness correction data as a file in the signal generator s memory catalog With several user flatness correction files saved to the memory catalog specific files can be recalled loaded into the correction array and applied to the RF output t
98. eak input voltage differs from 1 0 by more than 3 The LO HI annunciators only function for ac coupled external inputs Chapter 5 111 Key Reference A AM Start Rate Supported PSG A Series This softkey enables you to change the starting frequency of the internally generated modulation source for swept sine amplitude modulation Preset 400 0 Hz Range 1 0 HZz 1 0 MHz minimum increment allowed is 1 0 Hz Location Page 231 Remarks This softkey is coupled to the AM Rate softkey in the initial AM menu and the AM Tone 1 Rate softkey in the AM Dual Sine menu Any value set for AM Start Rate is reflected in the AM Rate and AM Tone 1 Rate softkeys AM Stop Rate Supported PSG A Series This softkey enables you to change the ending frequency of the internally generated modulation source for swept sine amplitude modulation Preset 400 0 Hz Range 1 0 H2 1 0 MHz minimum increment allowed is 0 1 Hz Location Page 231 Remarks This softkey is coupled to the AM Tone 2 Rate softkey in the AM Dual Sine menu Any value set for AM Stop Rate is reflected in the AM Tone 2 Rate softkey AM Sweep Rate Supported PSG A Series This softkey enables you to set the sweep rate for swept sine amplitude modulation Preset 400 0 Hz Range 0 1 Hz 100 0 kHz Location Page 231 Remarks N A 112 Chapter 5 Key Reference A AM Sweep Trigger Supported PSG A Series Usethis softkey to access a menu of choices that enables
99. ed Key Reference D PSG A Series Use this softkey to specify dc as the modulation waveform for the internally generated signal Preset Range Location Remarks N A N A Page 240 This key is only active when you have selected the internal source to operate as a function generator DCFM DCOM Cal Supported PSG A Series This softkey enables you to initiate a DCFM or aDC M calibration depending upon which type of modulation is currently active This calibration eliminates the offset in DCFM or DCOM so that the carrier frequency remains the same with no modulation applied NOTE Preset Range Location Remarks If the calibration is performed with a dc signal applied any deviation provided by the dc signal will be removed and the new zero reference point will be at the applied dc level The calibration will have to be performed again when the dc signal is disconnected to reset the carrier signal to the correct zero reference N A N A Page 235 Page 237 Use this calibration for externally applied signals While the calibration can also be performed for internally generated signals dc offset is not a normal characteristic for them Chapter 5 127 Key Reference D Delete All Binary Files Supported All This softkey enables you to delete all binary files in the displayed catalog of files The files will not be deleted until you press the Confirm Delete Of Binary Files f you change your mind and do
100. ed to On 4 Press RF On Off The display annunciator has changed from RF OFF to RF ON The power at the RF OUTPUT connector is 20 dBm 5 Press Incr Set gt 10 gt dB This changes the amplitude increment value to 10 dB 6 Usethe up arrow key to increase the output power by 10 dB The AMPLITUDE area displays 10 00 dB the power output by the hardware 20 dBm plus 10 dBm minus the reference power 20 dBm and the output power changes to 10 dBm 7 Press Ampl Offset gt 10 gt dB This enters a 10 dB offset The AMPLITUDE area displays 20 00 dB the power output by the hardware 10 dBm minus the reference power 20 dBm plus the offset 10 dB The OFFS indicator is activated The power at the RF OUTPUT connector is still 10 dBm Chapter 2 23 Fundamental Operation Configuring the RF Output Configuring a Swept RF Output The signal generator has two sweep types step and list NOTE List sweep data cannot be saved within an instrument state but can be saved to the memory catalog For instructions on saving list sweep data see Storing Files on page 45 During swept RF output the FREQUENCY and AMPLITUDE areas of the signal generator s display are deactivated depending on what is being swept Following an explanation of the differences between step sweep and list sweep you will learn two ways to configure the signal generator s RF output to sweep a defined set of frequency
101. eep trigger then sweeps are triggered consecutively a new sweep is triggered as soon as the current sweep ends Choosing Free Run in the Point Trigger menu causes the sweep to pause for the dwell time at each point after the hardware has been set up for that point s frequency and amplitude Preset N A Range N A Location Page 231 Page 236 Page 238 Page 241 Page 245 Remarks To stop the sweep choose a different trigger such as Ext or set the waveform to something other than Swept Sine Chapter 5 151 Key Reference F Freq Supported All This softkey enables you to set the signal generator to sweep frequency data only The amplitude is set at a constant level determined by the Amplitude hardkey You can define a sweep containing both amplitude and frequency information and still choose to sweep frequency only Preset N A Range N A Location Page 245 Remarks None Freq Multiplier Supported All This softkey enables you to multiply the frequency shown on the display without changing the frequency output at the RF OUTPUT connector simulating the frequency at the output of a harmonic multiplier For any multiplier other than 1 the MULT indicator is shown in the frequency area of the display Preset 1 Range 100 to 1000 excluding 0 Location Page 239 Remarks The displayed frequency value is equal to the actual frequency minus the reference frequency times the multiplier plus the offset frequency
102. effective dwell time at the RF OUTPUT connector is the sum of the value set for the dwell plus processing time attenuator switching time and settling time This additional time added to the dwell is generally a few milliseconds TheTTL output however available at the TRIGGER OUT connector is asserted high only during the actual dwell time If the list dwell values are correct continue to the next step 4 Observe if the Dwell Type List Step softkey is set to Step When Step is selected the signal generator will sweep the list points using the dwell time set for step sweep rather than the sweep list dwell values To view the step sweep dwell time follow these steps a Press Configure Step Sweep b Observe the value set for the Step Dwell softkey Recalled a Register and Sweep List is Missing List sweep information is not stored as part of the instrument state in an instrument state register Only the current list sweep is available to the signal generator List sweep data can be stored to the instrument catalog For instructions see Storing Files on page 45 Chapter 4 83 Solving Problems If You Encounter a Problem All of the Registers Where You Previously Stored Instrument States are Empty The save recall registers are backed up by a battery when line power to the signal generator is not connected The battery may need to be replaced To verify that the battery has failed do the following 1 Turn off line power
103. elect either a positive or negative polarity for the TRIGGER OUT signal Preset N A Range N A Location Page 230 Page 235 Page 237 Page 240 Remarks Internal 2 is not available for use with the swept sine function Chapter 5 219 Key Reference T T Trans Recv Pace None Xon Supported All This softkey enables you to determine whether any pacing is acknowledged by the RS 232 transmit channel If Xon pacing is used the system will suspend transmitting data upon receiving an Xoff character until an Xon character is received The signal generator may not be responsive to other channels or to the front panel while transmission is Suspended Xon pacing is not recommended if binary data will be sent to the signal generator via RS 232 as errors may occur Toggle Trans Recv Pace None Xon to None to turn off Xon pacing Preset N A Choices None or Xon Location Page 247 Remarks The pace state is not affected by a preset or by a power cycle Triangle Supported PSG A Series This softkey enables you to specify a triangle wave as the modulation waveform for the internally generated ac coupled signal Preset N A Range N A Location Page 230 Page 235 Page 237 Page 240 Remarks The selected waveform applies only to the path configuration you have currently selected 220 Chapter 5 Key Reference T Trigger Supported All Use this hardkey to initiate an immediate trigger event if the trigger mode is set to Tr
104. enu enables you to adjust the reference oscillator and set the value of the step keys and the front panel knob Preset N A Range N A Location Page 247 Remarks None Instrument Info Help Mode Supported All Press this softkey to display a menu of softkeys for the following functions display diagnostic information about your signal generator display all available options and the associated hardware display the self test control menu toggle the modulation status display on and off toggle the help mode between single and continuous display information about the installed boards Preset N A Range N A Location Page 247 Remarks None 164 Chapter 5 Int Doublet Supported Key Reference l PSG A Series Usethis softkey to select an internal doublet pulse modulation When doublet pulse is enabled each trigger event will produce two pulses at the RF OUTPUT connector The first pulse will follow the external trigger signal that is applied to the TRIGGER IN connector The second pulse will have delay and width parameters as set via the front panel or with programming commands Pulse delay is measured from the leading edge of the external trigger signal Refer to Figure 5 3 Figure 5 3 Preset Range Location Remarks Int Free Run Supported PULSE TRIG GATE IN RF OUTPUT SLITI L 1 1 1 pt DELAY t WIOTH N A N A Page 242 This modulation source requires an external trigger source PSG A Ser
105. enu map 244 self tests 211 abort 106 details viewing 225 226 loop selected 181 run complete 204 highlighted 204 selected 205 select desel ect all 209 test 209 sequences See instrument state register service request annunciator 13 signal generator adjustments 164 reference oscillator 199 200 202 reference oscillator BW 101 102 104 reference oscillator BW external 142 reference oscillator BW internal 169 step knob ratio 215 features 2 firmware upgrading 87 information 164 diagnostic 132 help system mode 160 163 modulation status 185 options 189 self tests 181 204 205 211 self tests aborting 106 key descriptions 91 227 menu maps 229 251 operation fundamental 19 52 options 4 overview 1 17 261 Index signal generator continued performance optimizing 53 74 power on configuration 192 preset configuration 194 207 problems solving 75 89 repair return instructions 88 signs changing 187 softkeys individual See Table of Contents label area 14 location on front panel 6 within menus See Menu Maps SOURCE MODULE connector 16 SOURCE SETTLED OUTPUT connector 17 standby LED 9 step array user flatness number of points configuration 62 start and stop frequency configuration 62 See also user flatness correction step attenuator 29 storage data or file See data storage See also memory catalog and instrument state register sweep amplitude
106. ep gt Freq amp Ampl Is the sweep in continuous mode If the sweep is in single mode be sure that you have pressed the Single Sweep softkey at least once since completion of the prior sweep Try setting the mode to continuous to determine if the missing single sweep is blocking the sweep Is the signal generator receiving the appropriate sweep trigger Try setting the Sweep Trigger key to Free Run to determine if a missing sweep trigger is blocking the sweep Is the signal generator receiving the appropriate point trigger Try setting the Point Trigger key to Free Run to determine if a missing point trigger is blocking the sweep Is the dwell time reasonable Try setting the dwell time to one second to determine if you had set the dwell time to a value which was too slow or too fast for you to see Do you have at least two points in your step sweep or list sweep Cannot Turn Off Sweep Mode Press Sweep List gt Sweep gt Off In the sweep mode menu you can choose to set the sweep to various sweep types or to turn sweep off 82 Chapter 4 Solving Problems If You Encounter a Problem Incorrect List Sweep Dwell Time If the signal generator does not dwell for the correct period of time at each sweep list point do the following 1 Press Sweep List gt Configure List Sweep This displays the sweep list values 2 Check the sweep list dwell values for accuracy 3 Edit the dwell values if they are incorrect NOTE The
107. equence The instrument state includes all of your setup selections except list sweep data and functions that do not change by the preset function or by a power cycle Preset N A Range N A Location Page 244 Remarks Donot press this key until you have specified the correct sequence and register using the Select Seq and Select Reg softkey Save User Preset Supported All This softkey enables you to establish your user defined preset state Set up all of the instrument state conditions that you want for your unique preset state When you have defined the instrument state to suit your needs press Save User Preset Only one user defined preset state is allowed so when you save the instrument state you will save over any previously saved state Your instrument state will be recalled by the signal generator any time you press Preset as long as you have set the Preset Normal User key to User Preset N A Range N A Location Page 247 Remarks The instrument state definition is a state file and is not affected by a preset or by a power cycle Chapter 5 207 Key Reference S Screen Saver Delay Supported All This softkey enables you to set the period of time before the screen saver is activated when there has been no input from the front panel Preset N A Range 1 12 hours Location Page 247 Remarks as screen saver delay state is not affected by a preset or by a power cycle Screen Saver Mode Supported All This so
108. equency Noise noise in a uniform or Gaussian distribution with adjustable amplitude generated as a peak to peak value RMS value is approximately 80 of the displayed value DC direct current with adjustable amplitude NOTE The LF Out Off On softkey controls the operating state ofthe LF output when the LF output source is set to function generator 1 or 2 The Mod On Off softkey controls the operating state of the LF OUTPUT connector when the LF output source is set to internal monitor 1 or 2 The RF On Off softkey does not apply tothe LF OUTPUT connector Chapter 2 41 Fundamental Operation Configuring the LF Output PSG A Series Only Configuring the LF Output with an Internal Modulation Source In this example the internal FM modulation is the LF output source Configuring the Internal Modulation as the LF Output Source 1 2 3 Press Preset Press the FM M hardkey Press FM Dev gt 75 gt kHz This sets the FM deviation to 75 kHz Press FM Rate gt 10 gt kHz This sets the FM rate to 10 kHz Press FM Off On The FM annunciator is activated indicating that you have enabled frequency modulation Configuring the Low Frequency Output 1 Press the LF Out hardkey This opens the Low Frequency Output menu The LF output source is set to internal modulation 1 by default Press LF Out Amplitude Into 50 Ohms gt 3 gt Vp This sets the LF output amplitude to 3 Vp 3 000 Vp is displayed below t
109. ernal 1 High BH om Path Internal 2 2 an On gM Dev QM Source Internal 1 0M Rate More 1 of 2 kkk QM Waveform Sine Uniform Sine Positive Gaussian Qn Dew Couple Triangle Negative HIM On Square OCFN OC M Cal When QM is selected Changes to Ext Coupling AC when bM Source gt Ext1 or Ext2 are selected Changes to Ext Impedance Ele 600 Ohm when bM Source gt Ext1 or Ext2 are selected ETT being the default selection pe923a Chapter 6 237 Menu Maps FM DM Page 20f2 A m Tone 1 Rate om Tone 2 Rate om Tone 2 Ampl Percent OF Peak qn Dev Active when Ext is selected QM Start Rate n Stop Rate QM Sweep Rate QM Sweep Trigger Free Run Trigger Out Polarit Neg Free Run Trigger Key peg24a 238 Chapter 6 Menu Maps Frequency Frequency Ref Oscillator Freq aaa Source Auto OFF Freg Ref on Freq Offset Source Module on Freq Multiplier Phase Ref Set Adjust Phase More More 1 of 2 2 of 2 This key is deleted with Option UNJ installed pe93a Chapter 6 239 Menu Maps LF Output LF Output LF Out Page 1 of 2 LF Out MA On LF Out Amplitude Into 50 Ohms LF Out Source Internal 1 LF Out Waveform LF Out Freq Triangle Rame More 1 of 2 Internal 1 Monitor Internal 2 Monitor Function Generator 1 Function Generator 2 Positive Negative LF Out Ton
110. ervice personnel Run Highlighted Tests Supported All This softkey is provided for self test diagnostics Refer to the troubleshooting section of the service guide Preset N A Range N A Location Page 250 Remarks This key is included for use by service personnel 204 Chapter 5 Key Reference R Run Selected Tests Supported All This softkey is provided for self test diagnostics Refer to the troubleshooting section of the service guide Preset N A Range N A Location Page 250 Remarks This key is included for use by service personnel Chapter 5 205 Key Reference S S Save Supported All Use this hardkey to access a menu of choices that enables you to select delete and re save registers and sequences The menu shows the registers in use and any comments associated with the registers for the last sequence accessed The menu is updated whenever you make any changes to the registers or to the comments Preset N A Range N A Location Page 244 Remarks Up to 100 storage registers and 10 register sequences are available depending on the number and size of files Save Reg Supported All Usethis softkey to save the current instrument state in the specified register Preset N A Range N A Location Page 244 Remarks None 206 Chapter 5 Key Reference S Save Seq n Reg nn Supported All This softkey enables you to save the current instrument state in the specified register within the specified s
111. es spaced at equal intervals throughout the sweep list sweep frequencies and amplitudes can be entered at unequal intervals and nonlinear ascending descending or random order For convenience the List Mode Values table can be copied from a previously configured step sweep Each step sweep point s associated frequency amplitude and dwell time values are entered into a row in the List Mode Values table as the following example illustrates Configuring and Activating a Single Step Sweep In this procedure you will create a step sweep with nine equally spaced points and the following parameters e frequency range from 500 MHz to 600 MHz e amplitude from 20 dBm to 0 dBm e dwell time 500 ms at each point 1 Press Preset 2 Press Sweep List This opens a menu of sweep softkeys 3 Press Sweep Repeat Single Cont This toggles the sweep repeat from continuous to single 4 Press Configure Step Sweep 5 Press Freq Start gt 500 gt MHz This changes the start frequency of the step sweep to 500 MHz 6 Press Freq Stop gt 600 gt MHz This changes the stop frequency of the step sweep to 600 MHz 7 Press Ampl Start gt 20 gt dBm This changes the amplitude level for the start of the step sweep 8 Press Ampl Stop gt 0 gt dBm This changes the amplitude level for the end of the step sweep Chapter 2 25 Fundamental Operation Configuring the RF Output 9 Press Points gt 9 gt Enter This sets the number of sweep points to nine
112. es the active function The signal generator displays the last sequence that you have used Set the sequence to 1 using the arrow keys 46 Chapter 2 Fundamental Operation Using Data Storage Functions Press Select Reg The register number in sequence 1 becomes the active function The signal generator displays either the last register used accompanied by the text in use or if no registers are in use register 00 accompanied by the text available Use the arrow keys to select register 01 Press Save Seq 1 Reg 01 This will save this instrument state in sequence 1 register 01 of the instrument state register Press Add Comment to Seq 1 Reg 01 This allows you to add a descriptive comment to sequence 1 register 01 Enter your comment using the alphanumeric softkeys or the knob and press Enter Press Edit Comment In Seq 1 Reg 01 This allows you to change the descriptive comment for sequence 1 register 01 if desired Change your comment using the alphanumeric softkeys and press Enter After making changes to an instrument state you may save it back to a specific register by highlighting that register and pressing Re SAVE Seq n Reg nn Recalling an Instrument State Using this procedure you will learn how to recall instrument settings saved to an instrument state register 1 2 Press Preset Press the Recall hardkey Notice that the Select Seq softkey shows sequence 1 This is the last seq
113. ess Editing Keys gt Clear Text Additional characters are available by turning the knob Press Enter Chapter 2 45 Fundamental Operation Using Data Storage Functions Deleting Stored Files 1 Highlight the desired file 2 Press Delete File The Confirm Delete softkey appears 3 Press Confirm Delete Using the Instrument State Register The instrument state register is a section of memory divided into 10 sequences numbered O through 9 each containing 100 registers numbered 00 through 99 It is used to store and recall frequency amplitude and for PSG A Series signal generators modulation settings It provides a quick method to reconfigure the signal generator when switching between different signal configurations Once an instrument state has been saved all of the frequency amplitude and modulation settings can be recalled with minimum effort NOTE List sweep data is not saved within an instrument state F or instructions on saving list sweep data see Storing Files on page 45 Saving an Instrument State Using this procedure you will learn how to save current instrument settings to the instrument state register 1 Press Preset 2 Configure the signal generator with the following settings a Press Frequency gt 800 gt MHz b Press Amplitude gt 0 gt dBm c Press AM gt AM Off On This enables amplitude modulation AM annunciator is on 3 Press Save gt Select Seq The sequence number becom
114. ess is enabled 5 Error Message Area Abbreviated error messages are reported in this space When multiple error messages occur only the most recent message remains displayed Reported error messages with details can be viewed by pressing Utility gt Error Info 6 Text Area This area of the display is used to show status information about the signal generator such as the modulation status sweep lists and file catalogs This area also enables you to perform functions such as managing information entering information and displaying or deleting files 7 Softkey Label Area The labels in this area define the function of the softkeys located immediately to the right of the label The softkey label will change depending upon the function selected 14 Chapter 1 Signal Generator Overview Rear Panel Rear Panel Figure 1 3 shows the signal generator rear panel The signal generator rear panel provides input output and remote nterface connections Descriptions are provided for each characteristic of the rear panel Figure 1 3 Rear Panel Diagram HH L HH pe912a AC Power Receptacle GPIB AUXILIARY INTERFACE 10 MHz IN LAN 10 MHz OUT SWEEP OUT SOURCE MODULE TRIGGER OUT 10 TRIGGER IN 11 SOURCE SETTLED OUTPUT
115. ex problems data storage empty registers 84 register contains wrong state 84 fail safe recovery sequence 85 help mode cannot turn off 76 RF output low 77 low while working with mixer 78 low while working with spectrum analyzer 80 modulation no 76 none 76 service contacts 88 signal generator locked up 85 returning to factory for repair 88 will not power up 84 sweep cannot turn off 82 dwell time incorrect 83 stalled 82 sweep list missing 83 PSG A features 3 PSG L features 2 PULSE annunciator 13 pulse modulation delay 195 description 34 menu map 242 operating state 195 period 40 196 rate 196 source external 34 141 197 polarity 141 source internal 34 197 doublet 165 free run 165 gated 166 squarewave 169 triggered 167 width 40 197 R R remote annunciator 13 rear panel description 15 diagram 15 Recall hardkey 7 198 menu map 243 recovery sequence See fail safe recovery sequence reference amplitude 23 116 frequency 21 153 oscillator adjustment internal 199 200 oscillator adjustment return to factory defaults 202 oscillator adjustment store 216 oscillator bw adjustment 101 102 104 oscillator external bw adjustment 142 oscillator internal bw adjustment 169 registers See instrument state register remote control GPIB address 51 158 listener mode 65 159 setup 51 159 LAN hostname 51 161 IP address 51 170 setup 51 172 local
116. ferent correction arrays for different test setups or different frequency ranges you may save individual user flatness correction tables to the signal generator s memory catalog and recall them on demand Follow the steps in the next sections to create and apply user flatness correction to the signal generator s RF output Afterward follow the steps in Recalling and Applying a User Flatness Correction Array on page 64 to recall a user flatness file from the memory catalog and apply it to the signal generator s RF output Creating a User Flatness Correction Array In this example you will create a user flatness correction array The flatness correction array contains ten frequency correction pairs amplitude correction values for specified frequencies from 1 to 10 GHz in 1 GHz intervals An Agilent E4416A 17A 18B 19B power meter controlled by the signal generator via GPIB and E4413A power sensor are used to measure the RF output amplitude at the specified correction frequencies and transfer the results to the signal generator The signal generator reads the power level data from the power meter calculates the correction values and stores the correction pairs in the user flatness correction array If you do not have the required Agilent power meter or if your power meter does not have a GPIB interface you can enter correction values manually Chapter 3 59 Optimizing Performance Creating and Applying User Flatness Cor
117. form once you have connected the signal source to the EXT 1 INPUT connector Preset N A Range N A Location Page 230 Page 235 Page 237 Remarks The externally applied ac coupled input signal is tested for a voltage level and a display annunciator will report a high or low condition if that voltage is gt 3 of 1 Vp Chapter 5 141 Key Reference E Ext2 Supported PSG A Series This softkey enables you to select an externally applied signal for the modulation waveform once you have connected the signal source to the EXT 2 INPUT connector Preset N A Range N A Location Page 230 Page 235 Page 237 Remarks The externally applied ac coupled input signal is tested for a voltage level and a display annunciator will report a high or low condition if that voltage is gt 3 of 1 Vp External Ref Bandwidth Supported PSG A Series with Option UNJ This softkey enables you to adjust the bandwidth of the external reference oscillator Preset N A Choices 25 0 Hz 55 0 Hz 125 0 Hz 300 0 Hz 650 0 Hz Location Page 248 Remarks None 142 Chapter 5 Key Reference F F Flatness Off On Supported All This softkey toggles the operating state of the application of the user flatness corrections to the output power Preset Off Choices Off or On Location Page 232 Remarks None FM M Supported PSG A Series Use this hardkey to access a menu of choices that enables you to configure modulation type FM normal phase modul
118. front panel knob arrow keys and the numeric keypad have no effect until another function becomes active Preset N A Range N A Remarks None Hostname Supported All This softkey enables you to enter the hostname for the local area network connection No hostname is entered at the factory Preset N A Range N A Location Page 247 Remarks The hostname setting is not affected by a preset or by a power cycle Chapter 5 161 Key Reference Incr Set Supported All This hardkey enables you to set the incremental value of the up and down arrow keys and the front panel knob for the current active function The incremental value will appear in the active entry area of the display Preset N A Range N A Remarks The increment set value is not affected by a preset or by a power cycle Insert Item Supported All This softkey enables you to insert a copy of the highlighted item directly below that item in a table or list Preset N A Range N A Location Page 245 Remarks None Insert Row Supported All Use this softkey to insert a copy of the highlighted row directly above that row in a table or list Preset N A Range N A Location Page 233 Page 245 Remarks None 162 Chapter 5 Installed Board Info Supported All Key Reference l Use this softkey to display information about the installed boards in the signal generator Refer to Figure 5 2 Figure 5 2 Installed Board Information FR
119. ft and right arrow keys to move the cursor Use the up and down arrow keys the front panel knob or the numeric keypad to enter an IP address Use the backspace key to delete digits in the address 6 Press Enter This assigns a hostname and IP address to the signal generator The hostname and IP address are not affected by an instrument preset or by a power cycle Chapter 2 51 Fundamental Operation Configuring for Remote Control Configuring for an RS 232 Interface 1 Press Utility gt GPIB RS 232 LAN gt RS 232 Setup 2 Press RS 232 Baud Rate Press the desired baud rate softkey to set the baud rate 3 Press RS 232 Echo Off On This toggles the state of the SCPI echoing on the RS 232 connection Set as desired 4 Press Trans Recv Pace None Xon This toggles from no handshaking Trans Recv Pace None to XON XOFF handshaking Trans Recv Pace Xon when transmitting or receiving data via RS 232 Set as desired 5 Press Reset RS 232 This deletes the data from the RS 232 buffer Pressing this key will discard any unprocessed SCPI input received over RS 232 6 Press RS 232 Timeout This allows you to enter a valuein seconds before the instrument generates an RS 232 timeout after not receiving data on the serial bus These RS 232 parameters are not affected by an instrument preset or by a power cycle 52 Chapter 2 3 Optimizing Performance 53 Optimizing Performance Using External Leveling Using Exter
120. ftkey is active only when you have selected the internal source to operate as Function Generator 1 LF Out Stop Freq Supported PSG A Series This softkey enables you to change the ending frequency for swept sine low frequency output This key is coupled to the LF Out Tone 2 Freq softkey in the LF Out Dual Sine menu Any value set for LF Out Stop Freq is reflected in the LF Out Tone 2 Freq softkey Preset 400 0 Hz Range 1 0 Hz2 1 0 MHz minimum increment is 1 0 Hz Location Page 240 Remarks This softkey is active only when you have selected the internal source to operate as Function Generator 1 Chapter 5 175 Key Reference L LF Out Sweep Rate Supported PSG A Series This softkey enables you to set the sweep rate for low frequency swept sine output The signal generator will sweep from the specified start frequency to the stop frequency at the rate set with this key Preset Range Location Remarks 400 0 Hz 500 0 mHz 100 kHz minimum increment is 1 0 Hz Page 240 This softkey is active only when you have selected the internal source to operate as Function Generator 1 LF Out Sweep Trigger Supported PSG A Series Usethis softkey to access a menu of choices that enables you to select the triggering mode for the swept sine low frequency output You can choose triggering that occurs immediately triggering that is supplied by the GPIB triggering on either a positive or negative level of a signal supplied
121. ftkey toggles the operating mode for the screen saver between Light Only and Light amp Text When you set the screen saver to Light Only only the display light is turned on and off When you set the screen saver to Light amp Text the display light and the text are turned on and off Preset N A Choices Light Only or Light amp Text Location Page 247 Remarks The screen saver mode is not affected by a preset or by a power cycle To prevent the text from burning the display if you are leaving the display unchanged for long periods of time set the mode to light and text 208 Chapter 5 Key Reference S Screen Saver Off On Supported All This softkey toggles the operating state of the screen saver With the screen saver on the display is turned off after a period of time with no input from the front panel The display turns back on when any key is pressed Preset N A Choices Off or On Location Page 247 Remarks The screen saver mode is not affected by a preset or by a power cycle Select Deselect All Supported All This softkey is provided for self test diagnostics Refer to the troubleshooting section of the service guide Preset N A Range N A Location Page 250 Remarks This key is intended for use by service personnel Select Deselect Test Supported All This softkey is provided for self test diagnostics Refer to the troubleshooting section of the service guide Preset N A Range N A Location Page 250
122. g the Signal Generator to GPIB Listener Mode During the user flatness correction process the power meter is slaved to the signal generator via GPIB and no other controllers are allowed on the GPIB interface The signal generator operates in GPIB talker mode as a device controller for the power meter In this operating mode it cannot receive SCPI commands via GPIB NOTE If the signal generator is to be interfaced to a remote controller after performing the user flatness correction its GPIB controller mode must be changed from GPIB talker to GPIB listener This is accomplished by presetting the signal generator If an RF carrier has been previously configured you must save the present instrument state before returning the signal generator to GPIB listener mode 1 Save your instrument state to the instrument state register For instructions see Saving an Instrument State on page 46 2 Press GPIB Listener Mode This presets the signal generator and returns it to GPIB listener mode The signal generator can now receive remote commands executed by a remote controller connected to the GPIB interface 3 Recall your instrument state from the instrument state register For instructions see Recalling an Instrument State on page 47 Chapter 3 65 Optimizing Performance Creating and Applying User Flatness Correction Creating a User Flatness Correction Array Using a MM Wave Source Module In this example a user flatness c
123. he LF Out Amplitude softkey Press LF Out Off On The LF output is a 3 Vp frequency modulated sinewave the default signal shape with a 75 kHz FM deviation and 10 kHz rate 42 Chapter 2 Fundamental Operation Configuring the LF Output PSG A Series Only Configuring the LF Output with a Function Generator Source In this example function generator 1 is the LF output source Configuring the Function Generator as the LF Output Source 1 2 3 Press Preset Press the LF Out hardkey Press LF Out Source gt Function Generator 1 Function generator 1 becomes the LF output source and FuncGen 1 is displayed below the LF Out Source softkey Configuring the Waveform 1 Press LF Out Waveform gt Swept Sine This creates a swept sine output and opens a menu that configures the sweep parameters of the swept sine signal Press LF Out Start Freq gt 100 gt Hz This sets the swept sine start frequency to 100 Hz Press LF Out Stop Freq gt 1 gt kHz This sets the swept sine stop frequency to 1 kHz Press LF Out Sweep Rate gt 350 gt Hz This sets the swept sign sweeps per second to 350 Press Return gt Return This returns you tothe LF Output menu The start frequency for the swept sine waveform is displayed below the LF Out Freq softkey Configuring the Low Frequency Output 1 Press LF Out Amplitude Into 50 Ohms gt 3 gt Vp This sets the LF output amplitude to 3 Vp Press LF
124. he EXT 1 INPUT is less than 0 97 Vp or greater than 1 03 V 12 Chapter 1 EXT2 LO HI EXT REF FM L MOD ON OFF OVEN COLD PULSE RF ON OFF SWEEP UNLEVEL UNLOCK Signal Generator Overview Front Panel Display This annunciator is displayed as either EXT2 LO or EXT2 HI This annunciator appears whenever the ac coupled signal tothe EXT 2 INPUT is less than 0 97 Vp or greater than 1 03 Vp This annunciator appears when an external frequency reference is applied This annunciator appears when frequency modulation is turned on If phase modulation is turned on the dm annunciator will replace FM This annunciator appears when the signal generator is in listener mode and is receiving information or commands over the GPIB interface This annunciator indicates if the RF carrier is modulated MOD on or if the modulation is off MoD OFF Either condition of this annunciator is always visible in the display This annunciator appears when the temperature of the internal oven reference oscillator has dropped below an acceptable level When this annunciator is on frequency accuracy is degraded This condition should occur only if the signal generator is disconnected from line power The annunciator is timed and automatically turns off after a specified period This annunciator appears when pulse modulation is turned on This annunciator appears when the sign
125. hown in the AMPLITUDE area of the display but does not affect the output power The amplitude displayed is equal to the current power output by the signal generator hardware plus the value for the offset To eliminate the offset do the following Press Amplitude gt More 1 of 2 gt Ampl Offset gt 0 gt dB REF tells you that the amplitude reference mode is activated When this mode is on the displayed amplitude value is not the output power level Rather it is the current power output by the signal generator hardware minus the reference value set by the Ampl Ref Set softkey To exit the reference mode follow these steps a Press Amplitude gt More 1 of 2 b Press Ampl Ref Off On until Off is highlighted You can then reset the output power to the desired level 2 If you are using the signal generator with an external mixer see Signal Loss Occurs While Working with Mixers on page 78 3 If you are using the signal generator with a spectrum analyzer see Signal Loss Occurs While Working with Spectrum Analyzers on page 80 Chapter 4 77 Solving Problems If You Encounter a Problem Signal Loss Occurs While Working with Mixers If you experience signal loss at the signal generator s RF output during low amplitude coupled operation with a mixer you can solve the problem by adding attenuation and increasing the RF output amplitude of the signal generator Figure 4 1 shows a hypothetical configuration in
126. ies Use this softkey to select an internal free run pulse modulation When free run pulseis enabled the internal pulse modulation runs continuously Preset Range Location Remarks N A N A Page 242 None Chapter 5 165 Key Reference l Int Gated Supported PSG A Series Usethis softkey to select an internal gated pulse modulation When the rising edge of a valid gate signal is applied to the TRIGGER IN connector a pulse train will occur at the RF OUTPUT connector Pulse width and pulse repetition frequency parameters are set by way of the front panel or with programming commands When the falling edge of the gate signal is sensed at the TRIGGER IN connector the pulse train will cease If the falling edge of the gate signal occurs in the middle of a pulse at the RF OUTPUT connector the last pulse will complete before the pulse train ceases Once the falling edge of the gate signal is sensed a time interval equal to the pulse repetition interval must elapse before another rising edge at the TRIGGER IN connector will be valid Refer to Figure 5 4 Figure 5 4 Preset Range Location Remarks GATE IN 1 1 I 1 PULSE TRIG 1 N A N A Page 242 This modulation source requires an external trigger source 166 Chapter 5 Key Reference l Int Triggered Supported PSG A Series Usethis softkey to select an internal triggered pulse modulation When internal triggered pulse is enabled a
127. if the tone 2 amplitude is set to 30 0 of the total amplitude then the primary frequency is 70 0 of the total amplitude Default 50 0 Range 0 1 99 9 Location Page 236 Remarks This is applicable only for the dual sine function FM Tone 2 Rate Supported PSG A Series This softkey enables you to set the internal modulation frequency for the FM tone 2 of the dual sine FM waveform Default 400 0 Hz Range 0 5 Hz 1 0 MHz minimum increment is 0 5 Hz Location Page 236 Remarks This key is coupled to the FM Stop Rate softkey in the FM swept sine menu Any value set for FM Tone 2 Rate is reflected in the FM Stop Rate softkey 150 Chapter 5 Key Reference F FM Waveform Supported PSG A Series Usethis softkey to access a menu of choices that enables you to select the frequency modulation waveform that can be produced by the internal modulation source Preset Sine Choices Sine Noise Triangle Square Dual Sine Ramp Swept Sine Location Page 235 Remarks The waveform selection applies only to whichever FM path configuration you have currently selected Dual Sine and Swept Sine are available with Internal 1 only Free Run Supported All This softkey is one of the choices in both the Sweep Trigger menu and the Point Trigger menu Choosing Free Run in the Sweep Trigger menu immediately triggers the current sweep when you press the Single Sweep softkey When sweep repeat is continuous and Free Run is chosen for the sw
128. igger Key Preset N A Range N A Remarks The trigger key has autorepeat capability Hold it down and you will repeatedly trigger sweeps until you release the key Trigger Key Supported All This softkey enables you to trigger an event by pressing the Trigger hardkey The Trigger Key is located in the Sweep Trigger menu and in the Point Trigger menu Choosing Trigger Key in the Sweep Trigger menu immediately triggers an armed sweep when you press the Trigger front panel key Choosing Trigger Key in the Point Trigger menu immediately triggers the next point in the current sweep Preset N A Range N A Location Page 231 Page 236 Page 238 Page 241 Page 245 Remarks None Chapter 5 221 Key Reference T Trigger In Polarity Neg Pos Supported All This softkey toggles the polarity of the TTL signal at the TRIGGER IN connector that triggers an event When Trigger In Polarity Neg Pos is set to Pos the output signal is asserted high 5 0 V at the rising edge of the swept sine modulation sweep and low 0 0 V when the sweep is concluded Setting Trigger In Polarity Neg Pos to N eg reverses the polarity where the output signal is high at the falling edge 0 0 V and low at 5 0 V Preset Pos Choices Neg or Pos Location Page 231 Page 236 Page 238 Page 241 Page 245 Remarks This key is coupled to the Trigger In Polarity Neg Pos key for swept sine FM PM and LF Out and the Sweep List menu When the polarity is toggled for this
129. ignal generator is not in a local lockout condition e Check for a progress bar on the signal generator display which indicates that an operation is in progress e Try an instrument preset e Try cycling power Fail Safe Recovery Sequence If none of the previous suggestions resolves the problem you can try the fail safe recovery sequence This sequence should only be used as a last resort This process will reset the signal generator but the process will destroy the following types of data e all user files instrument state and data files e DCFM DC M calibration data e the persistent state Do not attempt to perform any other front panel or remote operations during the fail safe sequence To run the fail safe sequence follow these steps 1 Hold down the Preset key while cycling power 2 Continue to hold down the Preset key until the following message is displayed WARNING You are entering the diagnostics menu which can cause unpredictable instrument behavior Are you sure you want to continue CAUTION Carefully read the entire message It may list additional risks with the procedure beyond the risks documented here 3 Release the Preset key Chapter 4 85 Solving Problems If You Encounter a Problem 4 Press Continue to continue with the sequence or Abort to abort with no lost files At the conclusion of the sequence perform the following steps 1 Cyde power once again Cycling power restores all pre
130. ion Page 232 Remarks None 10kHz Supported All This softkey enables you to select an automatic leveling control bandwidth of 10 0 kHz Preset N A Range N A Location Page 232 Remarks None 100 Hz Supported All This softkey enables you to select an automatic leveling control bandwidth of 100 0 Hz Preset N A Range N A Location Page 232 Remarks None 100 Chapter 5 Key Reference Numerics 100 kHz Supported All This softkey enables you to select an automatic leveling control bandwidth of 100 0 kHz Preset N A Range N A Location Page 232 Remarks None 125 Hz Supported PSG A Series with Option UNJ This softkey enables you to select an internal or external reference oscillator bandwidth of 125 Hz Preset N A Range N A Location Page 248 Remarks None 25 Hz Supported PSG A Series with Option UNJ This softkey enables you to select an internal or external reference oscillator bandwidth of 25 Hz Preset N A Range N A Location Page 248 Remarks None Chapter 5 101 Key Reference Numerics 55 Hz Supported PSG A Series with Option UNJ This softkey enables you to select an internal or external reference oscillator bandwidth of 55 Hz Preset N A Range N A Location Page 248 Remarks None Supported All This softkey selects 300 as the baud rate in bits per seconds for the rear panel RS 232 connector Preset N A Range N A Location Page 248 Remarks The baud rate is not affected by a preset or by a
131. ion as possible regarding the signal generator s problem 2 Call the phone number listed in Table 4 1 appropriate tothe signal generator s location After sharing information regarding the signal generator and its condition you will receive information regarding where to ship your instrument for repair 3 Shipthesignal generator in the original factory packaging materials if they are available If not use similar packaging to properly protect the instrument 88 Chapter 4 Solving Problems Returning a Signal Generator to Agilent Technologies Table 4 1 Contacting Agilent Online assistance www agilent com find assist United States Latin America Canada Europe tel 1 800 452 4844 tel 305 269 7500 tel 1877 894 4414 tel 31 20 547 2323 fax 305 269 7599 fax 905 282 6495 fax 31 20 547 2390 New Zealand J apan Australia tel 0 800 738 378 tel 81 426 56 7832 tel 1 800 629 485 fax 64 4 495 8950 fax 81 42656 7840 fax 61 3 9210 5947 Asia Call Center Numbers Country Phone Number Fax Number Singapore 1 800 375 8100 65 836 0252 Malaysia 1 800 828 848 1 800 801664 Philippines 632 8426802 632 8426809 1 800 16510170 PLDT 1 800 16510288 PLDT Subscriber Only Subscriber Only Thailand 088 226 008 outside Bangkok 66 1 661 3714 662 661 3999 within Bangkok Hong Kong 800 930 871 852 2506 9233 Taiwan 0800 047 866 886 2 25456723 People s Republic
132. ion generator Dual Sine and Swept Sine are available only when you have selected the internal source to operate as Function Generator 1 178 Chapter 5 Key Reference L List Supported PSG A Series This softkey enables you to specify that only list sweep files be included in the catalog of files currently displayed Preset N A Range N A Location Page 249 Remarks None Load Cal Array From Step Array Supported All This softkey enables you to set up a table that includes the start frequency stop frequency and number of points that are defined in the Configure User Flatness Step Array menu Preset N A Range N A Location Page 233 Remarks None Load From Selected File Supported All This softkey enables you to load the list sweep data from a file into the current sweep list Usethe arrow hardkeys to highlight the desired sweep list file Press Load From Selected File and the list sweep data from the selected file is loaded into the current list sweep You can only have one list sweep at a time sothe existing list sweep data will be lost unless it is first stored to a file Preset N A Range N A Location Page 234 Page 246 Remarks This key is inactive unless at least one list sweep data file has been stored to memory Chapter 5 179 Key Reference L Load List From Step Sweep Supported All This softkey enables you to copy the step sweep data points intothe list sweep data points Preset N A Rang
133. ion mode between normal and deep Normal mode maintains the amplitude modulation standard behavior Deep mode provides an amplitude modulation depth with greater dynamic range when the ALC enabled Preset Normal Choices Normal or Deep Location Page 230 Remarks Deep AM is used for depths gt 20 dB when the modulation rate is gt 1 0 Hz This mode is limited to repetitive AM and will not work with a dc modulation signal Chapter 5 109 Key Reference A AM Off On Supported PSG A Series This softkey toggles the operating state of the amplitude modulation for whichever AM path configuration you have selected There are two paths for amplitude modulation which can be simultaneously enabled as long as they use different sources Internal 1 Internal 2 Ext1 or Ext2 The modulation signals from both paths are summed internally for composite modulation When amplitude modulation is on the AM annunciator is turned on in the display Preset Off Choices Off or On Location Page 230 Remarks Although you can enable amplitude modulation with this key the RF carrier is modulated by the enabled modulation only when you have also set Mod On Off to On AM Path 12 Supported PSG A Series This softkey enables you to select an amplitude modulation path AM Path 1 and 2 define two standard amplitude modulation configurations which can be used together AM Path 1 and AM Path 2 are summed internally for composite modulation Either path can be switched to
134. ional coupler NOTE While operating in external leveling mode the signal generator s displayed RF output amplitude is affected by the coupling factor value resulting in a Cal culated approximation of the actual RF output amplitude Todeterminethe actual RF output amplitude at the point of detection measure the voltage at the external detector output and refer to Figure 3 2 or you measure the power directly with a power meter Determining the Leveled Output Power Figure 3 2 shows the input power versus output voltage characteristics for typical Agilent Technologies diode detectors Using this chart you can determine the leveled power at the diode detector input by measuring the external detector output voltage You must then add the coupling factor to determine the leveled output power The range of power adjustment is approximately 20 to 25 dBm 56 Chapter 3 Optimizing Performance Using External Leveling Figure 3 2 Typical Diode Detector Response at 25 C 10V 20 dBV 10 dBV lt 6 dBV 1 0V 0dBV LINEAR ASYMPTOTE E 10 dBV u H t i lt 100 mV SQUARE LAW ASYMPTOTE EEE 20 dBV E L O gt E 30 dBV E gt x e 40 dBV 5 10 mV Ww E Lu o 50 dBV 1 mV 60 dBV 66 dBv 10 dBV 1mV 80 dBV 40 30 20 10 0 10 20 30 DETECTOR INPUT POWER dBm Chapter 3 57 Optimizing Performance Using External Leveling External Leveling with Option 1E 1 Signal Generators Signal gener
135. ions ABA amp OBW OBW add assembly level service manual 1CM add rack mount kit 1CN add front handle kit 1CP add rack mount kit with handles UK6 commercial calibration certificate with test data 4 Chapter 1 Signal Generator Overview Front Panel Front Panel Figure 1 1 shows the PSG A signal generator front panel This interface enables you to define monitor and manage input and output characteristics Although Figure 1 1 shows the PSG A Series front panel descriptions are valid for both PSG Series ThePSG L Series front panel has fewer connectors and menu hardkeys Connector descriptions that do not apply tothe PSG L Series front panel are specified as PSG A only Figure 1 1 Front Panel Diagram PSG A Series shown 3 Knob 6 Save Key 4 Amplitude Key 7 Recall Key m 5 Frequency Key 8 Trigger Key did es 9 Menu Keys Displa Softkeys id 10 Help DOO O h 11 EXT 1 INPUT O t oga ES LD00 6 12 EXT 2INPUT f e OO HO ogg 4 13 LF output EU 2906 E OS 44 Mod On off E lERA 45 ALC INPUT OOO O O 3 P P P ES 16 RF On Off To H 17 Numeric Keypad to O H 18 RF OUTPUT ___ 19 PULSE SYNC OUT e 4 20 PULSE VIDEO OUT 21 Line Power LED 24 Incr Set Key 22 Power Switch 25 PULSE TRIGGER G
136. itch the current modulation on or off The modulating signal may be the sum of several signals either internal or external sources Chapter 5 139 Key Reference E Ext Detector Supported All This softkey enables you to select an external diode detector leveling mode This enables you to connect a detector and a coupler or splitter tothe RF output and level the RF signal at a point external tothe RF output connector Preset N A Range N A Location Page 232 Remarks None Ext Detector Coupling Factor Supported All This softkey enables you to set the external detector coupling factor Preset 16 0 dB Range 200 0 dB to 200 0 dB Location Page 232 Remarks N A Ext Impedance 50 Ohm 600 Ohm Supported All This softkey toggles the external input impedance between 50 ohms and 600 ohms Preset 50 Ohm Choices 50 Ohm or 600 Ohm Location Page 230 Page 235 Page 237 Remarks None 140 Chapter 5 Key Reference E Ext Polarity Normal Inverted Supported PSG A Series This softkey toggles the external pulse polarity between normal and inverted Preset Normal Choices Normal or Inverted Location Page 242 Remarks N A Ext Pulse Supported PSG A Series This softkey enables you to activate the pulse modulation mode with an external pulse source Preset N A Range N A Location Page 242 Remarks N A Extl Supported PSG A Series Usethis softkey to select an externally applied signal for the modulation wave
137. key in any one of these menus it affects all locations of the key Trigger Out Polarity Neg Pos Supported All This softkey toggles the polarity ofthe TTL signal output at the rear panel TRIGGER OUT connector When Trigger Out Polarity Neg Pos is set to Pos the output signal is asserted high 5 0 V at the rising edge of the swept sine modulation sweep and low 0 0 V when the sweep is concluded Setting Trigger Out Polarity Neg Pos to Neg reverses the polarity where the output signal is high at the falling edge 0 0 V and low at 45 0 V Preset Pos Choices Neg or Pos Location Page 231 Page 236 Page 238 Page 240 Page 245 Remarks This key is coupled to the Trigger Out Polarity Neg Pos key for swept sine FM M and LF Out and the Sweep List menu When the polarity is toggled for this key in any one of these menus it affects all locations of the key This key is active only when you have selected the internal source to operate as a function generator 222 Chapter 5 Key Reference U U Uniform Supported PSG A Series This softkey enables you specify noise with a uniform distribution as the modulation waveform Preset N A Range N A Location Page 230 Page 235 Page 237 Page 240 Remarks None Utility Supported All Use this softkey to access a menu of choices that enables you to view and erase error messages access the GP B RS 232 LAN menu adjust the display access a menu of adjustments for the signal gener
138. l A high pulse indicates that the source has settled Chapter 1 17 Signal Generator Overview Rear Panel 18 Chapter 1 2 Fundamental Operation Fundamental Operation Configuring the RF Output Configuring the RF Output This section will show you how to create continuous wave and swept RF outputs Configuring a Continuous Wave RF Output Using these procedures you will learn how to set the following parameters e RF output frequency e frequency reference and frequency offset e RF output amplitude e amplitude reference and amplitude offset Setting the RF Output Frequency 1 Press Preset This returns the signal generator to the factory defined instrument state NOTE You can change the preset conditions to a user defined instrument state However for the purpose of these examples use the factory defined preset state the Preset Normal User softkey in the Utility menu must be set to Normal 2 Observe the FREQUENCY area of the display in the upper left hand corner The value displayed is the maximum specified frequency of your signal generator 3 Press RF On Off The RF On Off hardkey must be pressed before the RF signal is available at the RF OUTPUT connector The display annunciator changes from RF OFF to RF ON The maximum specified frequency is now being output at the RF OUTPUT connector at the signal generator s minimum power level 4 Press Frequency gt 700 gt MHz The
139. l This softkey enables you to set the relative phase of the RF output signal to zero Then all phase parameters are set relative to this zero reference Preset N A Range N A Location Page 239 Remarks None 190 Chapter 5 Key Reference P Point Trigger Supported All Use this softkey to access a menu of choices that enables you to select a triggering mode for point by point sweep Preset Free Run Choices Free Run Trigger K ey Bus Ext Location Page 245 Remarks You can also configure the polarity of the TTL signal output at the TRIGGER IN connector using the Trigger In Polarity Neg Pos softkey on this menu Refer to Trigger In Polarity Neg Pos on page 222 Positive Supported PSG A Series This key enables you to select a positively sloped ramp as the modulation waveform for the internally generated ac coupled signal Preset N A Range N A Location Page 230 Page 235 Page 237 Page 240 Remarks None Power Meter Supported All Use this softkey to access a menu of choices that enables you to select the external power meter model for use during the user flatness calibration Preset N A Choices E4418B E4419B E4416A E4417A Location Page 232 Remarks The power meter selection is not affected by a preset or by a power cycle The power meter is controlled only through a GPIB cable Chapter 5 191 Key Reference P Power On Last Preset Supported All This softkey toggles the power on state of the sign
140. l changethe frequency in 1 10th of 1 0 MHz steps When you press Step Knob Ratio the number displayed in the active entry area represents the arrow keys step size in the ratio To enter a new value rotate the front panel knob until the desired value is displayed use the up and down arrow keys or enter the value using the numeric keypad and press the Enter terminator key Preset N A Range 1 10 000 Location Page 248 Remarks This ratio applies only when you have a function active that has an associated increment value The step knob ratio is not affected by a preset or by a power cycle Store to File Supported All This softkey accesses a menu that enables you to create a file name and storethe current data toa file in the internal non volatile memory Preset N A Range N A Location Page 234 Page 246 Remarks The file name can consist of up to 23 alpha numeric and special characters Chapter 5 215 Key Reference S Store Ref Osc Setting Supported All This softkey enables you to store the current coarse and fine reference oscillator adjustment settings Refer to the calibration guide for more information Preset N A Range N A Location Page 248 Remarks This adjustment is intended for use by service personnel Sweep Supported All Usethis softkey to access a menu of choices that enables you to configure the sweep parameters In this menu you can choose to sweep frequency only amplitude only or both frequenc
141. le RS 232 Echo Off On Supported All This softkey toggles the operating state of the RS 232 serial port AUXILIARY INTERFACE connector echo function When this function is set to on every character sent to the signal generator is immediately sent back No editing capability is available Preset Range Location Remarks RS 232 Setup Supported N A Off or On Page 248 The echo state is not affected by a preset or by a power cycle All Usethis softkey to access a menu of choices that enables you to configure the rear panel RS 232 AUXILIARY INTERFACE connector Preset Range Location Remarks N A N A Page 248 None Chapter 5 203 Key Reference R RS 232 Timeout Supported All This softkey enables you to change the value for the RS 232 serial port timeout If further input is not received within the assigned timeout period while a SCPI command is being processed then the command is aborted and the input buffer is cleared Preset N A Range N A Location Page 248 Remarks Once set timeout is not affected by a preset or by a power cycle Run Complete Self Test Supported All Use this softkey to run an automated internal diagnostic test that checks for detectable hardware failures If there are probable hardware failures in the signal generator refer to the troubleshooting section of the service guide Preset N A Range N A Location Page 250 Remarks This key is included for use by s
142. litude sweep 155 sweeping 26 front panel diagram 5 display 11 knob 6 function generator selection 155 156 waveforms See waveforms function generator G general purpose interface bus See GPIB PIB address 51 158 connector 15 listener mode 65 159 setup 51 H hardkeys 10 M 7 143 237 AM 108 230 Amplitude 6 118 232 arrow 10 contrast decrease 10 increase 10 FM 7 143 235 Frequency 6 155 239 Help 7 160 Hold 10 161 Incr Set 9 162 LF Out 172 240 256 hardkeys continued Local 10 180 MENUS group 7 Mod On Off 8 184 numeric 8 Preset 10 193 Pulse 242 Recall 7 198 243 Return 10 202 RF On Off 8 202 Save 6 206 244 Sweep List 218 245 Trigger 7 221 Utility 223 247 Help hardkey 7 160 help system mode 160 163 Hold hardkey 10 161 hostname 51 Seealso P address IEEE 488 2 See GPIB Incr Set hardkey 9 162 input connectors 10 MHZIN 16 EXT 1INPUT 7 EXT 2INPUT 8 PULSE TRIGGER GATE INPUT 10 TRIGGER IN 17 instrument state register comment add 47 106 edit 47 137 keep 171 description 46 instrument states delete register 48 129 delete sequence 48 130 132 recall 47 198 199 re save 201 save 46 206 207 select register 210 select sequence 211 trouble See problems See also memory catalog Index interface connectors AUXILIARY INTERFACE 16 GPIB 15 LAN 16 RS 232 16 SOURCE MODULE 16 interface remote GPIB
143. ll Use this softkey to return the GPIB back to the listener mode after a user flatness calibration Preset N A Range N A Location Page 232 Remarks None Chapter 5 159 Key Reference H H Help Supported All Press this hardkey to display a help text box Then press a hardkey softkey or turn the knob and a short description of the function which will appear in the text area Preset N A Range N A Remarks N A Help Mode Single Cont Supported All Usethis hardkey to view a short description of any hardkey or softkey There are two help modes available on the signal generator single and continuous e In single mode when you press the Help key help text is provided for your next key press Pressing any key afterward will enable you to exit the help function and will activate the function of the key e In continuous mode when you press the Help key help text is provided for each key press in addition to activating the function of each key except for the Preset key You will remain in continuous mode until either the Help key is pressed again or the signal generator help mode is toggled back to single mode Preset N A Choices Single or Cont Location Page 250 Remarks The help mode is not affected by a preset or by a power cycle 160 Chapter 5 Key Reference H Hold Supported All This hardkey deactivates the current active function and blanks the softkey menu Once hold has been pressed the
144. lt 2 GHz gt 2 GHz to 3 2 GHz gt 3 2 GHz to 10 GHz gt 10 GHz to 20 GHz gt 20 GHz to 40 GHz 1 8 1 16 1 8 1 4 1 2 1 2 4 Maximum Peak Deviation 1 0 MHz 0 5 MHz 1MHz 2 MHz 4 MHz 8 MHz 16 MHz 32 MHz For example if you choose a carrier frequency of 950 MHz multiply 1 8 by 8 MHz resulting in a 1 0 MHz maximum peak deviation Preset Range Location Remarks 1 0kHz N A Page 235 Page 236 The new value of FM deviation applies only to whichever FM path configuration you have currently selected Also whenever FM Path 1 is used with FM Path 2 the deviation for FM Path 1 must be greater than or equal to the deviation for FM Path 2 Chapter 5 145 Key Reference F FM Dev Couple Off On Supported PSG A Series This softkey toggles the operating state of the frequency modulation deviation coupling Turning on FM deviation coupling links the FM deviation values of FM Path 1 and FM Path 2 Preset Choices Location Remarks FM Off On Supported Off Off or On Page 235 When the values are coupled any change you make to one FM deviation value is applied to both PSG A Series This softkey toggles the operating state of the currently selected frequency modulation Whenever frequency modulation is enabled the FM annunciator is turned on in the display Preset Choices Location Remarks Off Off or On Page 235 Although you can turn on frequency modulation with this key the RF ca
145. m power adjustment range will vary However you will have at least 4 dB and at least 13 dB range Auto Supported All This softkey sets the state of the automatic leveling control bandwidth capability Preset N A Range N A Location Page 232 Remarks None Chapter 5 119 Key Reference B Binary Supported All This softkey enables you to specify that only signal generator instrument binary files be listed in the catalog of files currently displayed Preset N A Range N A Location Page 249 Remarks None Black Pixels Screen Test Supported All This softkey enables you to set all the pixels on the display to black Pressing the Local hardkey returns the display to normal signal generator operation Preset N A Range N A Location Page 247 Remarks This key is provided for factory use in testing the display Brightness Supported All Use this softkey to adjust the display brightness intensity The current value shown in the active entry area is a relative value for brightness Increasing the number increases the brightness decreasing the number decreases the brightness Preset N A Range 1 50 Location Page 247 Remarks The brightness intensity is not affected by a preset or by a power cycle 120 Chapter 5 Key Reference B Bus Supported All This softkey is one of the choices in both the Sweep Trigger menu and the Point Trigger menu Choosing Bus in the Sweep Trigger menu allows you to trigge
146. marks None Delete All Regs in Seq n Supported All This softkey enables you to delete the data saved in all of the registers of the selected sequence Do not press this key until you have selected the correct sequence using the Select Seq key Preset N A Range N A Location Page 243 Page 244 Remarks You cannot recover data after this step If you change your mind and do not wish to delete the data press the Return hardkey Chapter 5 129 Key Reference D Delete All Sequences Supported All This softkey enables you to delete all of the data in all saved registers of all sequences Preset N A Range N A Location Page 243 Page 244 Remarks You cannot recover data after this step If you change your mind and do not wish to delete the data press the Return hardkey Delete All State Files Supported All This softkey enables you to delete all instrument state files The files will not be deleted until you press the Confirm Delete Of State Files f you change your mind and do not want to delete the files press the Return hardkey Preset N A Range N A Location Page 249 Remarks None Delete All UFLT Files Supported All This softkey enables you to delete all of the user flatness correction files The files will not be deleted until you press the Confirm Delete Of UFLT Files f you change your mind and do not want to delete the files press the Return hardkey Preset N A Range N A Location Page 249 Remarks
147. me Preset On Range Off or On Location Page 232 Remarks An alternative to setting the ALC off is to set the ALC toa narrow bandwidth ALC off is used for pulse widths less than 1 0 usec All Supported All This softkey enables you to specify that all file types in the user file system be listed Preset N A Range N A Location Page 249 Remarks None AM Supported PSG A Series Use this hardkey to access a menu of choices that enables you to configure the amplitude modulation type path depth and depth coupling rate source mode and waveform Preset N A Range N A Location Page 230 Remarks None 108 Chapter 5 Key Reference A AM Depth Supported PSG A Series This softkey enables you to set the amplitude modulation depth in percent for the currently selected modulation path Preset 0 1 Range 0 1 100 0 minimum increment allowed is 0 1 Location Page 230 Remarks The new value of AM depth applies only to whichever AM path configuration you have currently selected AM Depth Couple Off On Supported PSG A Series This softkey toggles the operating state of the AM depth coupling AM depth coupling links the AM depth values of AM Path 1 and AM Path 2 Preset Off Choices Off or On Location Page 230 Remarks When the values are coupled any change you make to one AM depth value is applied to both This softkey is not active when EXP is the selected AM type AM Mode Normal Deep Supported PSG A Series This softkey toggles the amplitude modulat
148. modulation Preset Range Location Remarks N A N A Page 240 None 168 Chapter 5 Key Reference l Internal Monitor 2 Supported PSG A Series This softkey enables you to output a signal at the LF OUTPUT connector The frequency and shape of the signal is set by the internal source as it is being used by a modulation Preset Range Location Remarks N A N A Page 240 None Internal Ref Bandwidth Supported PSG A Series with Option UNJ This softkey enables you to adjust the bandwidth of the internal reference oscillator Preset Choices Location Remarks Internal Square N A 25 0 Hz 55 0 Hz 125 0 Hz 300 0 Hz 650 0 Hz Page 248 None Supported PSG A Series This softkey enables you to internally generate squarewave pulse modulation Preset N A Range 0 1 Hz 10 0 MHz Location Page 242 Remarks For additional specifications refer to the data sheet Chapter 5 169 Key Reference l Inverse Video Off On Supported All This softkey toggles the operating state of the inverse video When inverse mode is on light text on a dark background is displayed The normal display mode for the signal generator inverse off is dark text on a light background Preset Range Location Remarks IP Address Supported N A Off or On Page 247 The inverse video state is not affected by a preset or by a power cycle All This softkey enables you to enter the IP address for y
149. n RF pulse will occur at the RF OUTPUT connector whenever a valid trigger signal occurs at the TRIGGER IN connector The RF pulse will have pulse width and delay as set by way of the front panel or with programming commands Refer to Figure 5 5 Figure 5 5 PULSE TRIG GATE IN i RF OUTPUT tq l ke DELAY WIDTH Preset N A Range N A Location Page 242 Remarks None Internal Supported All This softkey enables you select an internal mode for the automatic leveling control Preset N A Range N A Location Page 232 Remarks None Chapter 5 167 Key Reference Internal 1 Supported PSG A Series This softkey enables you to internally generate an ac coupled frequency modulation signal Preset Range Location Remarks Internal 2 Supported 400 0 Hz sine wave with 0 1 depth N A Page 230 Page 235 Page 237 The internal source has multiple uses but can be used for only one modulation at a time PSG A Series This softkey enables you to internally generate an ac coupled frequency modulation signal Preset Range Location Remarks 400 0 Hz sine wave with 0 1 depth N A Page 230 Page 235 Page 237 The internal source has multiple uses but can be used for only one modulation at a time Internal Monitor 1 Supported PSG A Series This softkey enables you to output a signal at the LF OUTPUT connector The frequency and shape of the signal is set by the internal source as it is being used by a
150. nal Leveling ThePSG signal generator can be externally leveled by connecting an external sensor at the point where leveled RF output power is desired This sensor detects changes in RF output power and returns a compensating voltage to the signal generator s ALC input The ALC circuitry raises or lowers levels the RF output power based on the voltage received from the external sensor ensuring constant power at the point of detection There are two types of external leveling available on the PSG You can use external leveling with a detector and coupler power splitter setup or a millimeter wave source module Leveling with Detectors and Couplers Splitters Figure 3 1 illustrates a typical external leveling setup The power level feedback to the ALC circuitry is taken from the external negative detector rather than the internal signal generator detector This feedback voltage controls the ALC system leveling the RF output power at the point of detection To use detectors and couplers splitters for external leveling at an RF output frequency of 10 GHz and an amplitude of 0 dBm follow the instructions in this section Required Equipment e Agilent 8474E negative detector e Agilent 87301D directional coupler cables and adapters as required Connect the E quipment Set up the equipment as shown in Figure 3 1 54 Chapter 3 Optimizing Performance Using External Leveling Figure 3 1 External Detector L eveling with a Direction
151. nce is 500 The damage levels are O Vdc 0 5 watts nominal 19 PULSE SYNC OUT PSG A only This connector outputs a sychronizing TT L compatible signal that is nominally 50 ns wide during internal and triggered pulse modulation The nominal source impedance is 50Q 20 PULSE VIDEO OUT PSG A only This connector outputs a TTL level compatible signal that follows the RF output envelope in all pulse modes The nominal source impedance is 50Q 21 Line Power LED This green LED indicates when the signal generator power switch is set to the on position 22 Power Switch This switch activates full power to the signal generator when set to the on position and deactivates all signal generator functions when in standby mode In standby mode the signal generator remains connected to the line power and power is supplied to some internal circuits 23 Standby LED This yellow LED indicates when the signal generator power switch is set to the standby condition 24 Incr Set Key This hardkey enables you to set the increment value of the current active function When this hardkey is pressed the increment value of the current active function will appear in the active entry area of the display Use the numeric keypad arrow hardkeys or the knob to adjust the increment value Chapter 1 9 Signal Generator Overview Front Panel 25 PULSE TRIGGER GATE INPUT PSG A only This connector accepts an externally supplied TTL compatible sign
152. ncrement allowed is 1 Hz Location Page 238 Remarks This softkey is coupled to the M Tone 2 Rate softkey in the M Dual Sine menu Any value set for M Stop Rate is reflected in the M Tone 2 Rate softkey M Sweep Rate Supported PSG A Series This softkey enables you to set the sweep rate for swept sine phase modulation Preset 400 0 Hz Range 1 Hz 100 0 kHz Location Page 238 Remarks N A 96 Chapter 5 Key Reference Symbols M Sweep Trigger Supported PSG A Series Use this softkey to access a menu of choices that enables you to select the triggering mode for the swept sine phase modulation Preset Choices Location Remarks M Tone 1 Rate Supported Free Run Free Run Trigger Key Bus Ext Page 238 You can also configure the polarity of the TTL signal output at the TRIGGER IN connector using the Trigger In Polarity Neg Pos softkey on this menu Refer to Trigger In Polarity Neg Pos on page 222 PSG A Series This softkey enables you to set the internal modulation frequency for the phase modulation tone 1 rate of the dual sine waveform Preset Range Location Remarks 400 0 Hz 0 5 Hz 1 0 MHz minimum increment is 0 5 Hz Page 238 This key is coupled to the M Rate softkey in the initial 6M menu and the M Start Rate softkey in the M swept sine menu Any value set for PM Tone 1 Rate is reflected in the M Rate and M Start Rate softkeys Chapter 5 97 Key Reference Symbols M Tone 2 Ampl Perce
153. nn Supported All Use this softkey to delete the contents of a specified register in a specified sequence Do not press this key until you have selected the correct sequence and register using the Select Seq and Select Reg softkeys Preset Range Location Remarks Diagnostic Info Supported N A N A Page 243 Page 244 You cannot recover the data after this step If you change your mind and do not wish to delete the data press the Return hardkey All Use this softkey to access a display of diagnostic information about the signal generator Refer to Figure 5 1 for information about what is included in the display Figure 5 1 Diagnostic Instrument Information FREQUENCY AMPLITUDE 40 000 000 000 00 cz 135 00 an Diagnostic Info ALC OFF Ac OFF a Options Info Self Test Instrument Information E8251A Mod Status Info 1 1 0 ff MO Serial Number Firmware Revision C 01 00 Help Mode Firmware Date Jun 04 2001 14 13 52 PRT TON Response 251A ESEE Cont Total hours on 503 7 Total hours display has been on Installed Total power cucles 193 Board Info Attenuator cucles Model Options Serial Number the model number of the signal generator a list of the installed hardware and software options the factory assigned serial number 132 Chapter 5 Firmware Revision IDN Response Total hours on Total hours display has been on Total power cycles Attenuator cycles
154. nt Of Peak Supported PSG A Series This softkey enables you to adjust the amplitude of the alternate frequency as a percentage of the peak LF analog modulation amplitude For example if the tone 2 amplitude is set to 30 0 of the total amplitude then the primary frequency is 70 0 of the total amplitude Default Range Location Remarks M Tone 2 Rate Supported 50 0 0 1 99 9 Page 238 This is applicable for the dual sine function only PSG A Series This softkey enables you to set the internal modulation frequency for the phase modulation tone 2 rate of the dual sine waveform Default Range Location Remarks 400 0 Hz 0 5 Hz2 1 0 MHz minimum increment is 0 5 Hz Page 238 This key is coupled to the M Stop Rate softkey in the M swept sine menu Any value set for M Tone 2 Rate is reflected in the M Stop Rate softkey 98 Chapter 5 Key Reference Symbols M Waveform Supported PSG A Series Use this softkey to access a menu of choices that enables you to select the waveform of the internally generated source for phase modulation Preset Sine Choices Sine Noise Triangle Square Dual Sine Ramp Swept Sine Location Page 237 Remarks Dual Sine and Swept Sine are not available for the Internal 2 source Chapter 5 99 Key Reference Numerics Numerics 1kHz Supported All This softkey enables you to select an automatic leveling control bandwidth of 1 0 kHz Preset N A Range N A Locat
155. o satisfy various RF output flatness requirements 1 Press Load Store 2 Press Store to File 3 Enter the file name FLATCAL2 using the alphanumeric softkeys and the numeric keypad 4 Press Enter The user flatness correction array file FLATCAL2 is now stored in the memory catalog as a UFLT file 72 Chapier 3 Optimizing Performance Creating and Applying User Flatness Correction Applying the User Flatness Correction Array 1 Press Return gt Return gt Flatness Off On This applies the user flatness correction array to the RF output The uF indicator is activated in the AMPLITUDE section of the signal generator s display and the frequency correction data contained in the correction array is applied tothe RF output amplitude of the mm wave source module Recalling and Applying a User Flatness Correction Array Before performing the steps in this section complete the section Creating a User Flatness Correction Array Using a MM Wave Source Module on page 66 1 2 Press Preset Press Amplitude gt More 1 of 2 gt User Flatness gt Configure Cal Array gt More 1 of 2 gt Preset List gt Confirm Preset 3 Press More 2 of 2 gt Load Store Ensure that the file FLATCAL2 is highlighted 5 Press Load From Selected File gt Confirm Load From File This populates the user flatness correction array with the data contained in the file FLATCAL2 The user flatness correction array title display
156. oad Store 2 Press Store to File 3 Enter the file name FLATCAL1 using the alphanumeric softkeys numeric keypad or the knob 4 Press Enter The user flatness correction array file FLATCAL1 is now stored in the memory catalog as a UFLT file Applying a User Flatness Correction Array Press Return gt Return gt Flatness Off On This applies the user flatness correction array tothe RF output The uF indicator is activated in the AMPLITUDE section of the signal generator s display and the frequency correction data contained in the correction array is applied tothe RF output amplitude Recalling and Applying a User Flatness Correction Array Before performing the steps in this section complete Creating a User Flatness Correction Array on page 59 1 Press Preset 2 Press Amplitude gt More 1 of 2 gt User Flatness gt Configure Cal Array gt More 1 of 2 gt Preset List gt Confirm Preset 3 Press More 2 of 2 gt Load Store 4 Ensure that the file FLATCAL1 is highlighted 5 Press Load From Selected File gt Confirm Load From File This populates the user flatness correction array with the data contained in the file FLATCAL1 The user flatness correction array title displays User Flatness FLATCAL1 6 Press Return gt Flatness Off On This applies the user flatness correction data contained in FLATCAL1 64 Chapter 3 Optimizing Performance Creating and Applying User Flatness Correction Returnin
157. ode Power Search Manual Auto Supported All This softkey toggles the power search mode between auto and manual Power search is an internal calibration routine that improves output power accuracy when the ALC is off When you set Power Search to Auto power search will execute automatically with each change to the RF frequency or power When you set Power Search to Manual the power search routine is executed when the Do Power Search softkey is pressed Preset Manual Choices Manual Auto Location Page 232 Remarks The ALC Off On softkey must be set to Off in order to engage either power search mode Preset Supported All This hardkey enables you to set the signal generator to a known state which can be either the factory defined state or a user defined state Refer to Preset Normal User on page 194 Preset N A Range N A Remarks None Chapter 5 193 Key Reference P Preset List Supported All This softkey enables you to delete the current sweep list and replace it with a new list consisting of one point at a default frequency amplitude and dwell time Preset N A Range N A Location Page 233 Page 246 Remarks Be certain that you want to delete the current sweep list you cannot recover the information once you press Preset List Preset Normal User Supported All This softkey toggles the preset state between the factory defined and the user defined states If you choose Normal preset conditions
158. on or internal square pulse modulation is selected this key is disabled Chapter 5 197 Key Reference R R Ramp Supported PSG A Series This softkey enables you to specify ramp either positive or negative as the modulation waveform for the internally generated ac coupled signal Preset Positive Choices Positive or Negative Location Page 230 Page 235 Page 237 Page 240 Remarks This key is active only when you have selected the internal source to operate as a function generator Recall Supported All Usethis hardkey to access a menu of softkeys that enables you to select or delete registers and sequences Preset RECALL Reg Choices RECALL Reg Select Seq Delete Seq 0 Reg 0 Delete All Reg Delete All Sequences in Seq 0 Location Page 243 Remarks None 198 Chapter 5 Key Reference R Recall Ref Osc Setting Supported All Usethis softkey to recall the last saved reference oscillator coarse and fine adjustment setting Preset N A Range N A Location Page 248 Remarks This adjustment is intended for use by service personnel Refer to the calibration guide for more information Recall Reg Supported All Use this softkey to recall an instrument state from a saved register Recalling a register also selects that register number for all keys which specify a register number in this menu You can also use the front panel knob and the up and down arrow keys to scroll through all saved registers for the selected sequence
159. orrection array is created to provide flatness corrected power at the output of an Agilent 83554A millimeter wave source module driven by an E8241A signal generator The flatness correction array contains 28 frequency correction pairs amplitude correction values for specified frequencies from 26 5 to 40 GHz in 500 MH zintervals This will result in 28 evenly spaced flatness corrected frequencies between 26 5 GHz and 40 GHz at the output of the 83554A millimeter wave source module An Agilent E4416A 17A 18B 19B power meter controlled by the signal generator via GPIB and R8486A power sensor are used to measure the RF output amplitude of the millimeter wave source module at the specified correction frequencies and transfer the results to the signal generator The signal generator reads the power level data from the power meter calculates the correction values and stores the correction pairs in the user flatness correction array If you do not have the required Agilent power meter or if your power meter does not have a GPIB interface you can enter correction values manually Required Equipment e Agilent 83554A millimeter wave source module e Agilent E4416A 17A 18B 19B power meter e Agilent R8486A power sensor e Agilent 8349B microwave amplifier required for signal generators without Option 1EA e GPIB interface cable adapters and cables as required NOTE The equipment setups in Figure 3 4 and Figure 3 5 assume that the steps neces
160. our TCP IP network connection No IP address is entered at the factory Preset Range Location Remarks N A N A Page 247 The IP address setting is not affected by a preset or by a power cycle 170 Chapter 5 Key Reference K K Keep Previous Comment Supported All This softkey enables you to keep the comments of the previously saved register instead of over writing them Preset N A Range N A Location Page 244 Remarks None Chapter 5 171 Key Reference L L LAN Setup Supported All Usethis softkey to access a menu that enables you to enter a local area network LAN host name and IP address for communication through the LAN cable Preset N A Range N A Location Page 247 Remarks None Leveling Mode Supported All Usethis softkey to access a menu of choices that enables you to select a leveling mode for automatic leveling control Preset Internal Choices Internal Ext Detector Source Module Location Page 232 Remarks None LF Out Supported PSG A Series Use this hardkey to access a menu of softkeys that enables you to configure the internal low frequency output Preset N A Range N A Location Page 240 Remarks None 172 Chapter 5 Key Reference L LF Out Amplitude Into 50 Ohms Supported PSG A Series This softkey enables you to scale the output of the signal at the LF OUTPUT connector Preset 0 0V Range 0 0 3 5 Vp Location Page 240 Remarks None LF Out Freq Supported PSG A Series Thi
161. ource as it is being used by a modulation For example if the internal source is currently assigned to an AM path configuration and AM is turned on the signal output at the LF OUTPUT connector will have the frequency and shape of the amplitude modulating signal You can scale the amplitude of the output signal using the LF Out Amplitude softkey If you choose to set the internal source as a function generator you can select a frequency and shape in addition to selecting the amplitude for the LF output signal Preset Internal 1 Monitor Choices Internal 1 Monitor Internal 2 Monitor Function Generator 1 Function Generator 2 Location Page 240 Remarks When you use an internal source as a function generator any modulation with the internal source selected is turned off 174 Chapter 5 Key Reference L LF Out Start Freq Supported PSG A Series This softkey enables you to change the starting frequency for swept sine low frequency output This key is coupled to the LF Out Freq softkey in the initial LF Out menu and the LF Out Tone 1 Freq softkey in the LF Out dual sine menu Any value set for LF Out Start Freq is reflected in the LF Out Freq and LF Out Tone 1 Freq softkeys Conversely if you change the value for either the LF Out Freq softkey or the LF Out Tone 1 Freq softkey the value for LF Out Start Freq is changed to match Preset 400 0 Hz Range 1 0 Hz2 1 0 MHz minimum increment is 1 0 Hz Location Page 240 Remarks This so
162. output power is 0 0 dBm and you enter an amplitude offset of 3 0 dBm the output power will remain at 0 0 dBm but the display will show an amplitude of 3 0 dBm This feature lets you simulate the power level at a test point beyond the RF OUTPUT connector An amplitude offset can be entered at any time during normal operation and also when you are operating in amplitude reference mode Preset 0 00 dB Range 200 dB to 200 dB Location Page 232 Remarks Changes to this value affect the displayed amplitude value only the actual RF output power amplitude is not changed Chapter 5 115 Key Reference A Ampl Ref Off On Supported All This softkey toggles the operating state of the amplitude reference mode When amplitude reference mode is turned on the amplitude value displayed is equal to the current hardware output power minus the reference value set by the Ampl Ref Set softkey All subsequent amplitude parameters are then relative to the reference value Amplitude offsets can be used with amplitude reference mode In this situation the display will show the amplitude calculated as the current hardware output power minus the reference value plus the amplitude offset Preset Off Choices Off or On Location Page 232 Remarks Amplitude reference mode changes the display only it does not change the RF output power Ampl Ref Set Supported All This softkey enables you to set the current output power as an amplitude refe
163. owing the register Preset Range Location Remarks Edit Item N A N A Page 244 This softkeys appears only after a comment has been added toa register This softkey enables you to change an item in the displayed table or list Supported Preset Range Location Remarks All N A N A Page 233 Page 245 None Chapter 5 137 Key Reference E Editing Keys Supported All Use this softkey to access a menu of choices that enables you to create and edit text In this menu you can delete the existing text in the active entry area and you can toggle the editing mode from inserting text to replacing text Preset N A Range N A Location Page 234 Page 246 Page 249 Page 251 Remarks None Editing Mode Insert Replace Supported All This softkey toggles the editing mode between inserting text or replacing text Insertion mode causes text to be entered in the position directly to the right of the cursor Replacement mode causes the text to be entered in the position held by the cursor overwriting any existing text in that position Preset Insert Choices Insert or Replace Location Page 234 Page 246 Page 249 Page 251 Remarks None Error Info Supported All Use this softkey to access a menu of choices that enables you to view and clear error messages In this menu you can view any of the error messages in the queue and you can clear all of the error messages in the queue Preset N A Range N A Loc
164. play Front Panel Display Figure 1 2 shows the front panel display The LCD screen will display data fields annotations key press results softkey labels error messages and annunciators that represent various active functions of the signal generator Descriptions are provided for each feature of this interface Figure 1 2 Front Panel Display Diagram 1 Active Entry Area 2 Frequency Area 3 Annunciators 4 Amplitude Area AMPUTUDE UNLOCK EXT REF OVEN COLD ATTEN HOLD UNLEVEL pF on SWEEP EXT LO EXT2LO PULSE EAR OFF OFF Error 222 Data out of range value clipped to lower limit fo 5 Error Message Area 6 Text Area 7 Softkey Label Area Chapter 1 11 Signal Generator Overview Front Panel Display 1 Active Entry Area The current active function is shown in this area For example if frequency is the active function the current frequency setting will be displayed here If the current active function has an increment value associated with it that value is also displayed 2 Frequency Area The current frequency setting is shown in this portion of the display Indicators are also displayed in this area when the frequency offset or multiplier is used the frequency reference mode is turned on a source module is enabled or an external frequency is used 3 Annunciators The display ann
165. quency gt 12 gt GHz The FREQUENCY area of the display now reads 12 000 000 000 00 GHz Setting the RF Output Amplitude Press Amplitude gt 0 gt dBm The AMPLITUDE area of the display now reads 0 00 dBm Setting the FM Deviation and Rate 1 Press FM eM The first level menu of FM softkeys is displayed 2 Press FM Dev gt 75 gt kHz 75 0000 kHz is displayed below the FM Dev softkey 3 Press FM Rate gt 10 gt kHz 10 0000 kHz is displayed below the FM Rate softkey The signal generator is now configured to output a O dBm frequency modulated carrier at 12 GHz with a 75 kHz deviation and a 10 kHz rate The shape of the waveform is a sinewave Notice that sine is the default for the FM Waveform softkey Press More 1 of 2 to see the softkey Chapter 2 37 Fundamental Operation Configuring Analog Modulation PSG A Series Only Activating FM Follow these remaining steps to output the frequency modulated signal 1 Press FM Off On The FM annunciator is activated indicating that you have enabled frequency modulation 2 Press RF On Off The RF ON annuciator is activated indicating that the signal is now available at the RF OUTPUT connector Configuring M Using this procedure you will learn how to create a phase modulated RF carrier with the following characteristics e RF output frequency set to 20 0 GHz e RF output amplitude set to 0 dBm e M deviation set to 0 25 x radians e PM rate set to
166. r Models and Features Signal Generator Models and Features The PSG Family comprises two series the PSG A and PSG L The PSG A Series provides analog modulation in addition to continuous wave CW signals The PSG L Series provides CW signals only Table 1 1 lists the PSG A and PSG L Series model numbers and their frequency ranges Table 1 1 Signal Generator Model Numbers PSG A Series PSG L Series Frequency Range E8251A E8241A 250 kHz to 20 GHz E8254A E8244A 250 kHz to 40 GHz PSG L Series Features The PSG L Series includes the following features CW output from 250 kHz to 20 GHz E8241A or 40 GHz E8244A list and step sweep of frequency and amplitude with multiple trigger sources external diode detector leveling user flatness correction automatic leveling control ALC on and off modes power calibration in ALC off mode is available even without power search 10 MHz reference oscillator with external output GPIB RS 232 and 10 base T LAN input output interfaces a millimeter head interface that is compatible with Agilent 83550 Series millimeter heads for frequency extension up to 110 GHz Chapter 1 Signal Generator Overview Signal Generator Models and Features PSG A Series Features The PSG A Series provides all the functionality of the PSG L and adds the following features closed loop AM dc synthesized FM to 10 MHz rates deviation depends on the carrier frequency phase modul
167. r a list or step sweep using the GPIB Choosing Bus in the Point Trigger menu allows you to trigger a sweep point by point using the GPIB Preset N A Range N A Location Page 231 Page 236 Page 241 Page 245 Remarks None Chapter 5 121 Key Reference c C Catalog Type Supported All Use this softkey to access a menu of choices that enables you to select the catalog type for displaying files When you have made your selection the display is updated and your choice appears below the Catalog Type softkey Preset Choices Location Remarks N A All State List User Flatness Binary Page 249 Catalog type selection is not affected by a preset or by a power cycle Clear Error Queue s Supported All This softkey enables you to delete all messages that are stored in the error message queues When the error message queue is empty the ERR annunciator is turned off Preset Range Location Remarks N A N A Page 247 You cannot recover from this action once the messages are deleted they are permanently gone 122 Chapter 5 Key Reference c Clear Text Supported All Usethis softkey to delete all characters and digits in the active entry area This key is especially useful when you want to clear the current entry so you can create a new entry Preset N A Range N A Location Page 234 Page 246 Page 249 Remarks None Configure Cal Array Supported All Usethis softkey to access a menu of
168. rator 1 Press Preset 2 Configure the signal generator to interface with the power meter a Press Amplitude gt More 1 of 2 gt User Flatness gt More 1 of 2 gt Power Meter gt E4416A E4417A E4418B or E4419B b Press Meter Address gt enter the power meter s GPIB address gt Enter c For E4417A and E4419B models press Meter Channel A B to select the power meter s active channel d Press Meter Timeout to adjust the length of time before the instrument generates a timeout error if unsuccessfully attempting to communicate with the power meter 3 Press More 2 of 2 gt Configure Cal Array gt More 1 of 2 gt Preset List gt Confirm Preset This opens the User Flatness table editor and presets the cal array frequency correction list Chapter 3 61 Optimizing Performance Creating and Applying User Flatness Correction Press Configure Step Array This opens a menu for entering the user flatness step array data 5 Press Freq Start gt 1 gt GHz 6 Press Freq Stop gt 10 gt GHz 7 Press of Points gt 10 gt Enter 9 Steps 4 5 and 6 enter the desired flatness corrected frequencies into the step array Press Return gt Load Cal Array From Step Array gt Confirm Load From Step Sweep This populates the user flatness correction array with the frequency settings defined in the step array Press Amplitude gt 0 gt dBm 10 Press RF On Off This activates the RF output and the RF ON
169. rce is set to internal free run Notice that internal free run is the default for the Pulse Source softkey Chapter 2 39 Fundamental Operation Configuring Analog Modulation PSG A Series Only Configuring Pulse Modulation Using the following procedure you will learn how to create a pulse modulated RF carrier with the following characteristics RF output frequency set to 18 GHz e RF output amplitude set to 0 dBm e pulse period set to 100 0 usec e pulse width set to 24 0 usec pulse source set to internal free run Setting the RF Output Frequency 1 Press Preset 2 Press Frequency gt 18 gt GHz The FREQUENCY area of the display now reads 18 000 000 000 00 GHz Setting the RF Output Amplitude Press Amplitude gt 0 gt dBm The AMPLITUDE area of the display now reads 0 00 dBm Setting the Pulse Period and Width 1 Press Pulse gt Pulse Period gt 100 gt usec This sets the pulse period to 100 microseconds 2 Press Pulse gt Pulse Width gt 24 gt usec This sets the pulse period to 24 microseconds Activating Pulse Modulation Follow these remaining steps to output the pulse modulated signal 1 Press Pulse Off On This activates pulse modulation The Pulse annunciator is activated indicating that you have enabled pulse modulation 2 Press RF On Off The RF ON annuciator is activated the signal is now available at the RF OUTPUT 40 Chapter 2 Fundamental Operation Configuring the
170. rea and the mm indicator in the AMPLITUDE area of the signal generator s display indicate that the mm wave source module is active NOTE Refer to the mm wave source module specifications for the specific frequency and amplitude ranges Chapter 2 31 Fundamental Operation Configuring the RF Output 2 If the RF OFF annunciator is displayed press RF On Off Leveled power is now available at the output of the millimeter wave source module To obtain flatness corrected power refer to Creating and Applying User Flatness Correction on page 59 32 Chapter 2 Fundamental Operation Configuring Analog Modulation PSG A Series Only Configuring Analog Modulation PSG A Series Only PSG A signal generators can modulate the RF carrier with four types of analog modulation amplitude frequency phase and pulse AM FM and M Sources AM FM and M have two source paths each These multiple source paths are summed internally for composite modulation of the RF carrier Each path can be supplied by one of four sources Internal 1 Internal 2 External 1 or External 2 Only one path can be active for each source For example if AM Path lis on AM Path 2is on and AM Path 1 source is set to Internal 1 AM Path 2 source must be set to Internal 2 External 1 or External 2 Different paths cannot use the same source at the same time Waveforms available from Internal 1 and Internal 2 include Sine Dual Sine
171. rection Required Equipment e Agilent E4416A 17A 18B 19B power meter e Agilent E4413A E Series CW power sensor e GPIB interface cable e adapters and cables as required NOTE If the setup has an external leveling configuration the equipment setup in Figure 3 3 assumes that the steps necessary to correctly level the RF output have been followed If you have questions about external leveling refer to Using External Leveling on page 54 Configure the Power Meter 1 Select SCPI as the remote language for the power meter 2 Zeroand calibrate the power sensor to the power meter 3 Enter the appropriate power sensor calibration factors into the power meter as appropriate 4 Enable the power meter s cal factor array NOTE For operating information on your particular power meter sensor refer to its operating guide Connect the Equipment Connect the equipment as shown in Figure 3 3 NOTE During the process of creating the user flatness correction array the power meter is slaved to the signal generator via GPIB No other controllers are allowed on the GPIB interface 60 Chapter 3 Optimizing Performance Creating and Applying User Flatness Correction Figure 3 3 User Flatness Correction Equipment Setup SIGNAL GENERATOR oe SOURCE MODULE POWER METER E andother 1 J Te Y Devices Flatness t Corrected E Output Port OUT IN POWER SENSOR Device Under Test Configure the Signal Gene
172. rence value It also causes the Ampl Ref Off On key to toggle to the On position turning on amplitude reference mode All subsequent output power settings arethen relative tothe reference value Preset 0 00 dB Range 0 00 to 135 dBm Location Page 232 Remarks This key sets the reference value equal to the current output power If you have not yet set the reference value the normal preset value for amplitude reference is 0 0 dBm 116 Chapter 5 Key Reference A Ampl Start Supported All This softkey enables you to set the amplitude of the first point in the sweep When you press Ampl Start amplitude becomes the active function for the first point in the step sweep Preset 135 00 dBm for instruments with Option 1E 1 Range You can set the value anywhere in the range of the signal generator s specified output power Location Page 245 Remarks None Ampl Stop Supported All This softkey enables you to set the amplitude of the last point in the sweep When you press Ampl Stop amplitude becomes the active function for the last point in the step sweep Preset 135 00 dBm for instruments with Option 1E 1 Range You can set the value anywhere in the range of the signal generator s specified output power Location Page 245 Remarks None Chapter 5 117 Key Reference A Amplitude Supported All This hardkey enables you to change the RF output power In addition the key accesses a menu of choices that enables
173. rks If the modulation values are coupled any change made tothe modulation value for one standard path is applied to both standard paths M Off On Supported PSG A Series ls softkey toggles the phase modulation off or on for the currently selected modulation path When phase modulation is on the annunciator is displayed Preset Off Choices Off or On Location Page 237 Remarks None Chapter 5 93 Key Reference Symbols M Path 12 Supported PSG A Series This softkey toggles the selection between PM Path 1 and 9M Path 2 M Path 1 and DM Path 2 define two standard phase modulation configurations which can be used together Configure the modulation characteristics such as deviation source rate and waveform using the remaining keys in the 49M menu Then enable M by setting S M Off On to On M Path 1 and M Path 2 are summed internally for composite modulation Either path can be switched to any one of the modulation sources Internal 1 Internal 2 Ext1 or Ext2 Preset Choices Location Remarks M Rate Supported 1 lor 2 Page 237 M Path 2 must be set to a deviation less than M Path 1 PSG A Series This softkey enables you to change the frequency of the currently selected phase modulation Preset Range Location Remarks 400 0 Hz 0 5 Hz 1 0 MHz Sine 0 5 Hz2 100 kHz other waveforms Page 237 None 94 Chapter 5 M Source Supported Key Reference Symbols PSG
174. rray This opens the User Flatness table editor and places the cursor over the frequency value 1 GHz for row 1 The RF output changes to the frequency value of the table row containing the cursor and 1 000 000 000 00 is displayed the AMPLITUDE area of the display Observe and record the measured value from the power meter Subtract the measured value from 0 dBm Move the table cursor over the correction value in row 1 an Bb W N Press Edit Item gt enter the difference value from step 3 gt dB The signal generator adjusts the RF output amplitude based on the correction value entered 6 Repeat steps 2 through 5 until the power meter reads O dBm 7 Usethe down arrow key to place the cursor over the frequency value for the next row The RF output changes to the frequency value of the table row containing the cursor as shown in the AMPLITUDE area of the display 8 Repeat steps 2 through 7 for every entry in the User Flatness table Chapter 3 63 Optimizing Performance Creating and Applying User Flatness Correction Save the User Flatness Correction Data to the Memory Catalog This process allows you to save the user flatness correction data as in the signal generator s memory catalog With several user flatness correction files saved to the memory catalog any file can be recalled loaded into the correction array and applied tothe RF output to satisfy specific RF output flatness requirements 1 Press L
175. rrier is modulated by the enabled modulation only when you have also set Mod On Off to On 146 Chapter 5 Key Reference F FM Path 12 Supported PSG A Series Usethis softkey to select FM Path 1 or FM Path 2 FM Path 1 and FM Path 2 define two standard frequency modulation configurations which can be used together Configurethe modulation characteristics such as deviation source rate and waveform using the remaining softkeys in the FM menu Then enable FM by setting FM Off On to On FM Path 1 and FM Path 2 are summed internally for composite modulation Either path can be switched to any one of the modulation sources Internal 1 Internal 2 Ext1 or Ext2 Preset FM Path 1 Choices FM Path 1 or FM Path 2 Location Page 235 Remarks FM Path 2 is limited toa maximum rate of 1 MHz FM Path 2 must be set to a deviation less than FM Path 1 FM Rate Supported PSG A Series This softkey enables you to change the internal modulation frequency for the FM Path 1 and FM Path 2 configurations Preset Off Range 0 5 Hz 100 0 kHz minimum increment is 0 5 Hz 0 5 Hz 1 0 MHz if sinewave is selected as the internal waveform Location Page 235 Remarks The new value of FM rate applies only to whichever FM path configuration you have currently selected Chapter 5 147 Key Reference F FM Source Supported PSG A Series Use this softkey to access a menu of choices that enables you to select an internally generated or externall
176. rs should occur if all parameters for every point have been defined in the previous editing process Press Single Sweep The signal generator will sweep the points in your list once The SWEEP annunciator is activated during the sweep Press More 1 of 2 gt Sweep Trigger gt Trigger Key This sets the sweep trigger to occur when you press the Trigger hardkey Press More 2 of 2 gt Single Sweep This arms the sweep The ARMED annunciator has activated Press the Trigger hardkey The signal generator will sweep the points in your list once and the SWEEP annunciator is activated during the sweep 28 Chapter 2 Fundamental Operation Configuring the RF Output Using Sweep with the Step Attenuator Option 1E 1 The signal generator protects the step attenuator from overuse during swept operation by automatically switching to attenuator hold mode whenever you select an amplitude sweep Ampl or Freq amp Ampl softkeys The ATTN HOLD annunciator appears on the display when this mode is activated The usable life of the attenuator is preserved as the amplitude sweep range is limited to 45 dB thereby preventing mechanical switching The available amplitude range is displayed in the lower right corner of the Sweep List Status Information screen Changing the attenuator setting moves this range To disable this attenuator protection press Amplitude gt Atten ALC Control gt Atten Hold On Off
177. s The following table editor softkeys are used to load navigate modify and store table item values Press More 1 of 2 to view additional table editor softkeys Edit Item Insert Row Delete Row Insert Item Delete Item Goto Row Page Up and Page Down Load Store displays the selected item in the active function area of the display where the item s value can be modified inserts an identical row of table items above the currently selected row deletes the currently selected row inserts an identical item in a new row below the currently selected item deletes the item from the bottom row of the currently selected column opens a menu of softkeys Goto Top Row Goto Middle Row Goto Bottom Row Page Up and Page Down used to quickly navigate through the table items display table items that occupy rows outside the limits of the ten row table display area opens a menu of softkeys Load From Selected File Store To File Goto Row Page Up and Page Down used to load table items from a file in the memory catalog or to store the current table items as a file in the memory catalog For more information on loading and storing files see Using Data Storage Functions on page 44 Modifying Items in the Table Editor To modify existing table items 1 Use the arrow keys or the knob to move the table cursor over the desired item 2 Press Edit Item The selected item is displayed in the active function area of the display
178. s See also memory catalog and instrument state register dead no power signal generator See problems detector external coupling factor configuration 56 diode response typical 56 diagnostic information 132 diagrams display 11 front panel 5 rear panel 15 digit keys 187 display 133 active entry area 12 amplitude area 14 annunciators 12 brightness 120 contrast decrease hardkey 10 increase hardkey 10 diagram 11 error message area 14 frequency area 12 inverse video 170 modulation status 185 pixel test 120 227 screen saver delay 208 mode light light amp text 208 operating state 209 text area 14 update in remote mode 224 dwell time step sweep 26 214 type list step 135 Index echo RS 232 52 203 ERR annunciator 12 error messages 138 clear 122 display area 14 view next 225 view previous 226 examples SM configuring 38 AM configuring 35 files instrument state deleting registers and sequences 47 recalling 47 saving 46 files memory catalog copying 45 deleting 46 renaming 45 storing 45 viewing 44 FM configuring 37 leveling external detectors and couplers splitters with 54 mm wave source module with 29 58 LF output configuring 41 pulse modulation configuring 40 RF output CW configuring 20 mm wave source module configuring with 29 swept configuring 24 table editors modifying items in 50 user flatness correction correction array creating autom
179. s Only 0000 eee eee 41 Configuring the LF Output with an Internal Modulation Source 42 Configuring the LF Output with a Function Generator Source 43 Contents Using Data Storage FUnchOnS ds sonrie Sete ia dc a 44 Usina the Menor Catalog sio Alo 44 Using the Instrument State Register oooococcocococncrar 46 Usina Table EII 1059 tia od ea o ela ala ica ga 49 Table Editor SORKGYS 2000 0 e RA a A a AAA 50 Modifying ltems in the Table E GIO a 50 Comigorina for Remote Control cocci pain aida 51 Configuring fora GPIB Interface sc ocur rr a A A tea aa ned 51 Configuring for a LAN 10BASE T Interface 0 0c cece eee eens 51 Configuring for an RS 232 Interface cssovisrwediwussiwessaeinaneenne ee 52 3 Optimizing Performance 21ecs cecstctscceasecnenassacseranenads vs 53 Using External Leveling rsio che4 era cote e HEA eee oes oe ee 54 Leveling with Detectors and Couplers SplitterS oooooooooommmm 54 Leveling with a Millimeter Wave Source Module 0 0 00 cece eee ees 58 Creating and Applying User Flatness Correction 0 0 00 c cece een eens 59 Creating a User Flatness Correction Array 00 0 c eee eee 59 Creating a User Flatness Correction Array Using a MM Wave Source Module 66 ALC Bandwidth Selection rara A AA AAA AS 74 A SINO POIS lt lt 5 A A A acu 75 IF You Encounter a Prol Morro deed Gute aii aos 76 Cant TUT CA AA OA a
180. s User Flatness FLATCAL2 Press Return gt Flatness Off On This activates flatness correction using the data contained in the file FLATCAL2 Chapter 3 73 Optimizing Performance ALC Bandwidth Selection ALC Bandwidth Selection For internal leveling the signal generator uses automatic leveling control ALC circuitry prior tothe RF output ALC bandwidth has five selections automatic 100 Hz 1 kHz 10 kHz and 100 kHz At signal generator preset the ALC bandwidth selection is set to Auto In this configuration the signal generator automatically adjusts the ALC bandwidth between three of the four possible settings depending on which functions are currently active Figure 3 6 shows the signal generator s automatic ALC bandwidth selection decision tree Figure 3 6 Decision Tree for Automatic ALC Bandwidth Selection RF OUTPUT No AM OFF AM OFF AM ON AM ON lt 2 MHz PULSE OFF PULSE ON B PULSE on PULSE OFF Yes Yes Yes Yes Yes ALC BW ALC BW ALC BW ALC BW 100 Hz 1 kHz 10 kHz 100 kHz To select an ALC bandwidth press Amplitude gt ALC BW gt 100 Hz 1 kHz 10 kHz or 100 kHz This overrides the automatic ALC bandwidth selection with your specific selection 74 Chapter 3 4 Solving Problems 75 Solving Problems If You Encounter a Problem If You Encounter a Problem If the signal generator is not operating as you expect look for help in the following list of symptoms and possible solutions If
181. s a nominal signal level of gt 4 dBm and has an output impedance of 50Q The accuracy is determined by the timebase used whether internal or external 7 SWEEP OUT This BNC connector provides a voltage range of 0 to 10 V When the signal generator is in list or step sweep mode the SWEEP OUT signal ranges from 0 V at the beginning of the sweep to 10 V at the end of the sweep regardless of the sweep width In CW mode this connector has no output The output impedance is less than 1Q and can drive a 2 kQ load 8 SOURCE MODULE Use this interface for connecting to compatible Agilent 83550 Series mm wave source modules 16 Chapter 1 Signal Generator Overview Rear Panel 9 TRIGGER OUT This BNC connector outputs a TTL signal that is high at the start of a dwell sequence or when waiting for a point trigger in manual sweep mode The signal is low when the dwell is over or when a point trigger is received The low frequency LF sweep trigger output can be a high or low 4 us pulse 10 TRIGGER IN This BNC connector accepts a TTL signal used for point to point triggering in manual sweep mode or a low frequency LF sweep in external sweep mode Triggering can occur on either the positive or negative edge of the TTL signal start The damage level is lt 4 V or gt 10V 11 SOURCE SETTLED OUTPUT This BNC connector provides an open collector output indicating when the signal generator has settled to a new frequency or power leve
182. s softkey enables you to set the modulating frequency for the LF output signal when you have selected the internal source as a function generator Preset 400 0 Hz Range 0 5 Hz 100 0 kHz 0 5 Hz to 1 0 MHz if sinewave is selected as the internal waveform Location Page 240 Remarks This softkey is active only when you have selected the internal source to operate as a function generator LF Out Off On Supported PSG A Series This softkey toggles the operating state of the output of the selected source at the LF OUTPUT connector Refer to the LF Out Source softkey in this section for more information on choosing the source Preset Off Choices Off or On Location Page 240 Remarks Once you have toggled this state on the signal is immediately available at the LF OUTPUT connector The RF On Off hardkey does not apply to this state The Mod On Off softkey does apply to this state Chapter 5 173 Key Reference L LF Out Source Supported PSG A Series Usethis softkey to access a menu of choices that enables you to select an internally generated source for the low frequency output You can choose to output the signal from one of the internal sources as it is being used by a modulation or you can use the internal source as a function generator and select that signal to output at the LF OUTPUT connector If you choose an internal source the frequency and shape of the signal at the LF OUTPUT connector is set by the internal s
183. sary to correctly level the RF output have been followed If you have questions about leveling with a millimeter wave source module refer to Leveling with a Millimeter Wave Source Module on page 58 66 Chapter 3 Optimizing Performance Creating and Applying User Flatness Correction Configure the Power Meter 1 Select SCPI as the remote language for the power meter 2 Zero and calibrate the power sensor to the power meter 3 Enter the appropriate power sensor calibration factors into the power meter as appropriate 4 Enablethe power meter s cal factor array NOTE For operating information on your particular power meter sensor refer to their operating guides Connect the Equipment CAUTION To prevent damageto the signal generator turn off the line power tothe signal generator before connecting the source module interface cable to the rear panel SOURCE MODULE interface connector 1 Turn off the line power to the signal generator 2 Connect the equipment For standard signal generators use the setup in Figure 3 4 For Option 1EA signal generators use the setup in Figure 3 5 NOTE During the process of creating the user flatness correction array the power meter is slaved to the signal generator via GPIB No other controllers are allowed on the GPIB interface Chapter 3 67 Optimizing Performance Creating and Applying User Flatness Correction Figure 3 4 User Flatness with MM Wave Source Module for a Signal
184. se will have user defined delay and width parameters Internal Free Run produces internal free run pulse modulation with user defined period width and delay Internal Gated produces an internal gated pulse modulation When a valid gate signal is applied to the TRIGGER IN connector a pulse train with user defined width parameters will occur at the RF OUTPUT connector Internal Trigger produces an internal triggered pulse modulation An RF pulse with user defined width and delay parameters will occur at the RF OUTPUT connector whenever a valid trigger signal occurs at the TRIGGER IN connector Internal Square produces internal square pulse modulation This is a form of internal free run pulse with a 50 duty cycle The period is determined by rate For a detailed description of the behavior ranges and limitations of a specific pulse source see that waveform s softkey description in Chapter 5 Key Reference on page 91 34 Chapter 2 Fundamental Operation Configuring Analog Modulation PSG A Series Only Configuring AM Using this procedure you will learn how to create a multipath amplitude modulated RF carrier with the following characteristics e RF output frequency set to 15 GHz RF output amplitude set to 0 dBm e AM Path 1 depth set to 90 e AM Path 1rateset to 10 kHz e AM Path 1 waveform set to sine e AM Path 2 depth set to 40 AM Path 2 waveform set to triangle Setting the RF Output Freq
185. sing the Trigger In Polarity Neg Pos softkey on this menu Refer to Trigger In Polarity Neg Pos on page 222 Chapter 5 217 Key Reference S Sweep Type List Step Supported All This softkey toggles the sweep type between list sweep and step sweep You create a list sweep by supplying the frequency amplitude and dwell time for each point in the sweep You create a step sweep by supplying the start and stop frequency and amplitude the number of points and a dwell time The signal generator then calculates the points between the first and last point in a linear manner Preset List Choices List or step Location Page 245 Remarks None Sweep L ist Supported All Usethis hardkey to access a menu of softkeys that enables you to define a series of points containing frequency amplitude and dwell time information for the signal generator to sweep Preset N A Range N A Location Page 245 Remarks None 218 Chapter 5 Key Reference S Swept Sine Supported PSG A Series This softkey enables you to specify a swept sinewave as the modulation waveform for the internal ly generated ac coupled signal and displays a menu of choices for setting the parameters n this menu you can set the start and stop rate and the sweep time You can set the signal generator to a single externally triggered sweep on either a negative or positive TTL level or you can choose continuous sweep triggered immediately In this menu you can also s
186. start 25 117 stop 25 117 annunciator 13 ATTN HOLD annunciator 29 configuration examples list 26 step 25 data load list from step sweep 27 126 180 save list 45 description list 25 124 step 24 125 direction 216 dwell time step 26 214 type list step 135 frequency start 25 154 stop 25 154 manual mode operating state 182 point selection 182 mode amplitude frequency 216 sweep continued operating state 188 points 26 27 92 preset list sweep table values 126 194 repetition 25 217 single 26 28 single sweep 212 trigger 28 arming 28 bus 121 external 139 freerun 151 point by point 191 polarity input 222 polarity output 222 source 28 217 trigger key 221 trouble See problems type list step 26 218 using step attenuator 29 with Option 1E1 29 SWEEP annunciator 13 ae af al connector 16 w is handed 218 menu map 245 switch power 9 T T talker mode annunciator 13 table editor description 49 functional overview 50 navigation 157 158 190 table items deleting 131 table items modifying 50 162 text editing mode insert replace 138 erase 123 text editing 138 talker mode annunciator 13 text area 14 timeout RS 232 52 204 transmit receive pace RS 232 52 220 TRIGGER IN connector 17 OUT connector 17 262 trigger arming 28 bus 121 connectors 17 external 139 free run 151 hardkey 7 point by point 191 single sweep
187. t This toggles the sweep repeat from continuous to single The SWEEP annunciator is turned off The sweep will not occur until it is triggered 2 Press Sweep Type List Step This toggles the sweep type from step to list 26 Chapter 2 Fundamental Operation Configuring the RF Output Press Configure List Sweep This opens another menu displaying softkeys that you will use to create the sweep points The display shows the current list data When no list has been previously created the default list contains one point set to the signal generator s maximum frequency minimum amplitude and a dwell time of 2 ms Press More 1 of 2 gt Load List From Step Sweep gt Confirm Load From Step Sweep The points you defined in the step sweep are automatically loaded into the list Editing List Sweep Points 1 Press Return gt Sweep gt Off Turning the sweep off allows you to edit the list sweep points without generating errors If sweep remains on during editing errors occur whenever one or two point parameters frequency power and dwell is undefined Press Configure List Sweep This returns you to the sweep list table 3 Use the arrow keys to highlight the dwell time in row 1 Press Edit Item The dwell time for point 1 becomes the active function Press 100 gt msec This enters 100 ms as the new dwell time value for row 1 Note that the next itemin the table in this case the frequen
188. t has only one point then that point is used for each of the other list s points Frequency Supported All This hardkey enables you to change the RF output frequency In addition the key accesses a menu of softkeys that enables you to configure the reference frequency and the phase and specify the oscillator source Preset 20 0 GHz or 40 00 GHz depends on the signal generator Range The output frequency range allowed depends on your signal generator model Refer to the data sheet Location Page 239 Remarks None Function Generator 1 Supported PSG A Series This softkey enables you to select the internal source 1 as a function generator Preset N A Range N A Location Page 240 Remarks When you use the internal source in this capacity any modulation with the internal source selected is turned off Chapter 5 155 Key Reference F Function Generator 2 Supported PSG A Series This softkey enables you to select internal source 2 as a function generator Preset N A Range N A Location Page 240 Remarks When you usethe internal source in this capacity any modulation with the internal source selected is turned off 156 Chapter 5 Key Reference G G Gaussian Supported PSG A Series This softkey enables you specify noise with a Gaussian distribution as the modulation waveform for the internally generated ac coupled signal Preset N A Range N A Location Page 230 Page 235 Page 237 Page 240
189. t or by a power cycle 19200 Supported All This softkey selects 19200 as the baud rate in bits per second for the rear panel RS 232 connector Preset N A Range N A Location Page 248 Remarks The baud rate is not affected by a preset or by a power cycle 104 Chapter 5 Key Reference Numerics 38400 Supported All This softkey selects 38400 as the baud rate in bits per second for the rear panel RS 232 connector Preset N A Range N A Location Page 248 Remarks The baud rate is not affected by a preset or by a power cycle 57600 Supported All This softkey selects 57600 as the baud rate in bits per second for the rear panel RS 232 connector Preset N A Range N A Location Page 248 Remarks The baud rate is not affected by a preset or by a power cycle Chapter 5 105 Key Reference A A Abort Supported All Usethis softkey to stop the selected test Preset N A Range N A Location Page 250 Remarks None Abort Cal Supported All Usethis softkey to stop the calibration routine Preset N A Range N A Location Page 233 Remarks None Add Comment To Seq n Reg nn Supported All This softkey enables you to add a comment that is associated with a register in use The register number is listed in the text area of the display and the comment is shown immediately following the register Preset Range Location Remarks N A N A Page 244 The comment line is limited to 55 alpha numeric and spe
190. the step array Press Amplitude gt 0 gt dBm 10 Press RF On Off This activates the RF output and the RF oN annunciator is displayed on the signal generator Perform the User Flatness Correction NOTE If you are not using an Agilent E4416A 17A 18B 19B power meter or if your power meter does not have a GPIB interface you can perform the user flatness correction manually For instructions see Performing the User Flatness Correction Manually below 1 Press More 1 of 2 gt User Flatness gt Do Cal This creates the user flatness amplitude correction value table entries The signal generator begins the user flatness correction routine and a progress bar is shown on the display When prompted press Done This loads the amplitude correction values into the user flatness correction array If desired press Configure Cal Array This opens the user flatness correction array where you can view the list of defined frequencies and their calculated amplitude correction values The user flatness correction array title displays User Flatness UNSTORED indicating that the current user flatness correction array data has not been saved to the memory catalog Chapter 3 71 Optimizing Performance Creating and Applying User Flatness Correction Performing the User Flatness Correction Manually If you are not using an Agilent E4416A 17A 18B 19B power meter or if your power meter does not have a GPIB interface complet
191. to the signal generator 2 Unplug the signal generator from line power 3 Plugin the signal generator 4 Turn on the signal generator 5 Observe the display for error messages If either error message 311 or 700 is stored in the error message queue the signal generator s battery has failed 6 Refer tothe service guide for battery replacement instructions Saved an Instrument State in a Register but the Register is Empty or Contains the Wrong State If you have intentionally or unintentionally selected a register number that is greater than 99 the signal generator will automatically select register 99 to save your instrument state If the register number you intended to use is empty or contains the wrong instrument state do the following Press Recall gt 99 gt Enter This recalls register 99 The lost instrument state may be saved there The Power Supply has Shut Down If the power supply is not working it requires repair or replacement There is no user replaceable power supply fuse Refer to the service guide for instructions 84 Chapter 4 Solving Problems If You Encounter a Problem Signal Generator is Locked Up If your signal generator is locked up try the following suggestions for resolution e Makesurethat the signal generator is not in remote mode In remote mode the R annunciator will be displayed Press Local to exit remote mode and unlock the front panel keypad e Make certain that the s
192. u to save data in the instrument state register The instrument state register is a section of memory divided into 10 sequences numbered O through 9 each containing 100 registers numbered 00 through 99 It is used to store and recall frequency amplitude and for PSG A Series signal generators modulation settings It provides a quick alternative to reconfiguring the signal generator via the front panel or SCPI commands when switching between different signal configurations Once an instrument state has been saved all of the frequency amplitude and modulation settings can be recalled with the Recall hardkey 6 Chapter 1 Signal Generator Overview Front Panel 7 Recall Key This hardkey restores any instrument state that you previously saved in a memory register 8 Trigger Key This hardkey initiates an immediate trigger event for a function such as a list or step sweep The trigger mode must be set to Trigger Key prior to initiating a trigger event with this hardkey 9 Menu Keys These hardkeys access softkey menus enabling configuration of list and step sweeps utility functions the LF output and various analog modulation types 10 Help Key Press this hardkey to view a short description of any hardkey or softkey There are two help modes available on the signal generator single and continuous single mode is the factory preset condition e In single mode when you press the Help key help text is provided for the ne
193. uence that you used Press RECALL Reg The register to be recalled in sequence 1 becomes the active function Press the up arrow key once to select register 1 Your stored instrument state settings have now been recalled Deleting Registers and Sequences Using this procedure you will learn how to delete registers and sequences saved to an instrument state register Chapter 2 47 Fundamental Operation Using Data Storage Functions To Delete a Specific Register within a Sequence 1 2 Press Preset Press the Recall or Save hardkey Notice that the Select Seq softkey shows the last sequence that you used 3 Press Select Seq and enter the sequence number containing the register you want to delete Press Select Reg and enter the register number you want to delete Notice that the Delete Seq n Reg nn is now loaded with the sequence and register you want to delete Press Delete Seq n Reg nn This deletes the chosen register To Delete All Registers within a Sequence Press Preset Press the Recall or Save hardkey Notice that the Select Seq softkey shows the last sequence that you used Press Select Seq and enter the sequence number containing the registers you want to delete Press Delete all Regs in Seq n This deletes all registers in the selected sequence To Delete All Sequences CAUTION This will delete the entire contents of all registers and all sequences contained in th
194. uency 1 Press Preset 2 Press Frequency gt 15 gt GHz The FREQUENCY area of the display now reads 15 000 000 000 00 GHz Setting the RF Output Amplitude Press Amplitude gt 0 gt dBm The AMPLITUDE area of the display now reads 0 00 dBm Setting the AM Depth and Rate 1 Press the AM hardkey The first level menu of softkeys is displayed 2 Press AM Depth gt 90 gt 90 0 is displayed below the AM Depth softkey 3 Press AM Rate gt 10 gt kHz 10 0000 kHz is displayed below the AM Rate softkey Chapter 2 35 Fundamental Operation Configuring Analog Modulation PSG A Series Only Creating a Multipath AM Configuration Use the following steps to configure a multipath AM configuration AM Path 1 and AM Path 2 are summed internally for composite modulation Either path can be switched to any one of the modulation sources internal 1 or 2 external 1 or 2 but any given source can only be routed to one modulation type at a time Note that the AM Source for AM Path 1is set to Internal 1 as a default setting Therefore the AM Source for AM Path 2 must be set to another source as explained in the following procedure 1 Press AM Path 1 2 to toggle to AM Path 2 This opens a menu of softkeys where you can define a second unique amplitude modulation configuration 2 Press AM Depth gt 40 gt The AM Path 2 AM depth is set to 40 0 as displayed below the AM Depth softkey 3 Press More 1 of
195. uitry To set the signal generator to manual fixed power search mode follow these steps 1 Press Preset 2 Press Frequency enter the required frequency and terminate the entry with the appropriate terminator softkey 3 Press Amplitude enter the required amplitude and terminate the entry with the appropriate terminator softkey 4 Press ALC Off On This deactivates the ALC circuitry 5 Press RF On Off 6 Press Do Power Search This executes the manual fixed power search routine There are two power search modes manual and automatic In manual power search mode Power Search Manual Auto set to Manual pressing Do Power Search executes the power search calibration routine for the current RF frequency and amplitude In this mode a change in RF frequency or amplitude necessitates another calibration press Do Power Search again In automatic power search mode Power Search Manual Auto set to Auto the calibration routine is executed whenever the frequency or amplitude of the RF output is changed Chapter 4 81 Solving Problems If You Encounter a Problem Sweep Appears to be Stalled The current status of the sweep is indicated as a shaded rectangle in the progress bar You can use the progress bar to determine if the sweep is proceeding or is waiting If the sweep appears to have stalled check the following a a a a Have you turned on the sweep by pressing either Sweep gt Freq Sweep gt Ampl or Swe
196. unciators show the status of some of the signal generator functions and indicate any error conditions An annunciator position may be used by more than one function This does not create a problem because only one function that shares an annunciator position can be active at a time DM This annunciator appears when phase modulation is turned on If frequency modulation is turned on the Em annunciator will replace dm ALC OFF This annunciator appears when the ALC circuit is disabled A second annunciator UNLEVEL will appear in the same position ifthe ALC is enabled and is unable to maintain the output level AM This annunciator appears when amplitude modulation is turned on ARMED This annunciator appears when a sweep has been initiated and the signal generator is waiting for the sweep trigger event ATTEN HOLD This annunciator appears when the attenuator hold function is turned on When this function is on the attenuator is held at its current setting ERR This annunciator appears when an error message is placed in the error queue This annunciator will not turn off until you have either viewed all of the error messages or cleared the error queue You can access error messages by pressing Utility gt Error Info EX This annunciator appears when external leveling is turned on EXT1 LO HI This annunciator is displayed as either EXT1 LO or EXT1 HI This annunciator appears whenever the ac coupled signal tot
197. until Off is highlighted The protection will be re enabled the next time you select an amplitude sweep Using the Signal Generator with a MM Wave Source Module The RF output frequency of the signal generator can be multiplied using an Agilent 83550 Series millimeter wave source module The signal generator mm wave source module s output is automatically levded when the instruments are connected The output frequency range depends on the specific mm wave source module An Agilent 8349B microwave amplifier is required for signal generators without Option 1EA Option 1EA signal generators can drive the output of millimeter wave source modules to maximum specified power without a microwave amplifier NOTE To ensure adequate RF amplitude at the mm wave source module RF input when using an Option 1EA signal generator maximum amplitude loss through the adapters and cables connected between the signal generator s RF output and the mm wave source module s RF input should be less than 1 5 dB Required Equipment e Agilent 83550 Series millimeter wave source module e Agilent 8349B microwave amplifier required for signal generators without Option 1EA cables and adapters as required Chapter 2 29 Fundamental Operation Configuring the RF Output Connect the Equipment CAUTION To prevent damage to the signal generator turn off the line power to the signal generator before connecting the source module interface cable to the rear panel S
198. ut Palarnity Neg Pe sein ieee eda Re Ae hoes 222 Wai tic gn Me Hc ch i i epi a nae et ei er te rls 4 te eel lesan Sele a Ber ita 223 A Meee neh kee aad eye en EAA hee Ree ATT 223 Li ee ee ee er ere ee de aio dd 223 Updatein Remade OFO iria ee ides bare ares 224 User FIGIICSS 6 0 Peed nde Radek ee EDR SEE PEENE REEERE RETA RRR REL 224 A Sans AUCH E A ne ie E T AE 225 Vie DEl A nem 225 View Next Error Message erasa ananena kaeni ett 225 View Previous Error Message 2 002 40cccas edie rdbeencabanduadyabaveeias 226 View Tet INO ei ctac deka rancia car Ge FECES MERE a 226 Wc iisan ching ias ae pe eased oo EE AE oa een eae 227 White Pixels Screen TES 224 846 cubase a A 227 Xiv Contents G Menu Maps somocsrrarciaracinsrsarorsarn sar rosana nacans 229 A Reha MR ARE RPM KARE eo PAKS Sata asamp s 230 AMPIU sci e4a peek Beek w Pewee Kee wae aN A ORE ORE EG OH ewe 232 EMI ee eee er ee eee ee AAA AAA A eT eee ee 235 EMB co ccbeee tebe ews THREE biri orir oiha Doira TER ES Lew E WS 237 FG A pecs ek ne me ash Rene oo Pcs BR oh oe RR Seas BR a oe Rh ees i ob oe Resend 239 CFAE ti cath ere gtisedl ce Gis De Gly Leh Re Rae Aaa R 240 Pulse Modula ei td ho Roe a eA KEN Ree 242 A A iia a a anihald ek ih ned actly 243 VE ee eee ee er ee err ee rer er eee re EE E TEE 244 RINSE ASL ps RY ERR ieee REO do RR o RRA Ree Es 245 UEI IR A 247 XV Contents xvi 1 Signal Generator Overview Signal Generator Overview Signal Generato
199. viously installed options You should expect to see several error messages resulting from calibration files being restored from EEPROM 2 Performthe DCFM DC M calibration Refer to the DCFM DCOM Cal softkey description in Chapter 5 Key Reference in this manual 3 Agilent Technologies is interested in the circumstances that caused you to have to initiate this procedure Please contact us at the appropriate telephone number listed in Table 4 1 We would like to help you eliminate any repeat occurrences 86 Chapter 4 Solving Problems Upgrading Firmware Upgrading Firmware The PSG signal generator s firmware may be upgraded as new firmware is developed and released Subsequent firmware releases may contain new signal generator features and functionality not available in previous firmware releases Periodically Agilent Technologies will make this improved PSG signal generator firmware available to customers To make an inquiry as to the availability of new PSG signal generator firmware releases contact Agilent on the Internet at www agilent com find assist or call the appropriate number listed in Table 4 1 on page 89 Chapter 4 87 Solving Problems Returning a Signal Generator to Agilent Technologies Returning a Signal Generator to Agilent Technologies Toreturn your signal generator to Agilent Technologies for servicing follow these steps 1 Be prepared to give your service representative as much informat
200. wer search LF Out hardkey 172 LF output amplitude 42 43 173 configuration example 42 43 description 41 dual sine amplitude second tone 177 frequency first tone 177 frequency second tone 178 frequency 42 173 menu map 240 operating state 173 LF output continued source 174 function generator 43 155 156 internal modulation monitor 42 168 169 swept sine start frequency 43 175 stop frequency 43 175 sweep rate 43 sweeps second 176 trigger 176 waveform 41 43 178 See also waveforms function generator LF OUTPUT connector 8 LFO SeeLF output line power LED 9 listener mode annunciator 13 local area network See LAN Local hardkey 10 180 locked up signal generator See problems low frequency output SeeLF output M memory catalog Catalog type 122 description 44 file copy 45 126 delete 46 125 128 129 130 131 delete binary 128 load from selected file 179 load or store 180 rename 45 201 store 45 215 types 44 view 44 120 179 214 224 trouble See problems type 44 See also instrument state register 258 menu hardkey group 7 maps M 237 AM 230 Amplitude 232 FM 235 Frequency 239 LF output 240 Pulse 242 Recall 243 Save 244 Sweep List 245 Utility 247 microwave amplifier external leveling setup 29 mm wave source module setup 29 user flatness calibration setup 66 millimeter head See mm wave source module millimeter wave source module Se
201. which the signal generator provides a low amplitude signal to a mixer 8dBm ALC LEVEL Figure 4 1 Effects of Reverse Power on ALC SIGNAL GENERATOR OUTPUT CONTROL ALC LEVEL RF OUTPUT MIXER 8dBm 8dBm Y lt DETECTOR DETECTOR LO FEEDTHRU LO LEVEL MEASURES ros 5dBm 10 dBm m REVERSE POWER IF The internally leveled signal generator RF output and ALC level is 8 dBm The mixer is driven with an LO of 10 dBm and has an LO to RF isolation of 15 dB The resulting LO feedthrough of 5 dBm enters the signal generator s RF output connector and arrives at the internal detector Depending on frequency it is possible for most of this LO feedthrough energy to enter the detector Since the detector responds to its total input power regardless of frequency this excess energy causes the ALC to reduce the RF output of the signal generator In this example the reverse power across the detector is actually greater than the ALC level which may result in loss of signal at the RF output Figure 4 2 shows a similar configuration with the addition of a 10 dB attenuator connected between the RF output of the signal generator and the input of the mixer The signal generator s ALC level is increased to 2 dBm and transmitted through a 10 dB attenuator to achieve the required 8 dBm amplitude at the mixer input 78 Chapter 4 Figure 4 2 Reverse Power Solution SIGNAL GENERATOR
202. will be a factory defined state I f you choose User the preset conditions will be a defined and saved by the user with Save User Preset Preset N A Choices Normal or User Location Page 247 Remarks None Pulse Supported PSG A Series Usethis hardkey to access a menu of choices that enables you to configure the pulse modulation Preset N A Range N A Location Page 242 Remarks None 194 Chapter 5 Pulse Delay Supported Key Reference P PSG A Series This softkey enables you to change the pulse delay of the internally generated pulse modulation source Preset Range Location Remarks Pulse Off On Supported 0 0 sec The range is dependent upon the value set for the pulse period Internal Free Run pulse period 20 nS to pulse period 20 nS Internal Triggered amp Double 70nS to pulse period 20 nS Page 242 None PSG A Series This softkey toggles the operating state for the currently selected pulse source When pulse modulation is on the PULSE annunciator is shown in the display Preset Choices Location Remarks Off Off or On Page 242 The RF carrier is modulated by the enabled modulation only when you have also set Mod On Off to On Chapter 5 195 Key Reference P Pulse Period Supported PSG A Series This softkey enables you to change the pulse period for internally generated pulse modulation Preset Range Location Remarks Pulse Rate
203. xt key you press without activating the key s function Any key pressed afterward exits the help mode and its function is activated e In continuous mode when you press the Help key help text is provided for each subsequent key press until you press the Help key again or change to single mode In addition each key is active meaning that the key function is executed except for the Preset key Toggle between single and continuous mode by pressing Utility gt Instrument Info Help Mode gt Help Mode Single Cont 11 EXT 1 INPUT PSG A only This BNC input connector accepts a 1 Vp signal for AM FM and M For all these modulations 1 Vp produces the indicated deviation or depth When ac coupled inputs are selected for AM FM or M and the peak input voltage differs from 1 Vp by more than 3 the HI LO annunciators light on the display The input impedance is selectable as either 500 or 6009 and the damage levels are 5 V rms and 10 Vp Chapter 1 7 Signal Generator Overview Front Panel 12 EXT 2 INPUT PSG A only This BNC input connector accepts a 1 V signal for AM FM PM and pulse modulation With AM FM or PM 1 Vp produces the indicated deviation or depth With pulse modulation 1 V is on and O V is off When ac coupled inputs are selected for AM FM or M and the peak input voltage differs from 1 Vp by more than 3 the HI LO annunciators light on the display The input impedance is selectable as either 50Q or 60
204. y and amplitude You can also choose to turn off all sweep functions Preset Off Choices Off Freq Ampl Freq Ampl Location Page 245 Remarks None Sweep Direction Down Up Supported All This softkey enables you to change the direction of the sweep Choose Up to sweep from the first point in the list sweep to the last point or from the step sweep start frequency and amplitude to the stop frequency and amplitude Choose Down to reverse the direction of the sweep Preset Up Choices Down or Up Location Page 245 Remarks None 216 Chapter 5 Key Reference S Sweep Repeat Single Cont Supported All This softkey toggles the sweep repetition between single sweep and continuous sweep types The sweep and point triggers will then trigger the sweep See Point Trigger on page 191 and Sweep Trigger on page 217 Preset Cont Choices Single or Cont Location Page 245 Remarks None Sweep Trigger Supported All Usethis softkey to access a menu of choices that enables you to select a triggering mode for a sweep You can choose triggering that once a sweep is armed occurs immediately is supplied by the GPIB occurs on either the positive or negative edge of a signal supplied tothe TRIGGER IN connector or is initiated by the Trigger hardkey Preset Free Run Choices Free Run Trigger key Bus Ext Location Page 245 Remarks You can also configure the polarity of the TTL signal output at the TRIGGER IN connector u
205. y applied modulation input for the frequency modulation source The internal modulation is always ac coupled For externally applied signals you can choose between ac and dc coupled modulation Preset Choices Location Remarks FM Start Rate Supported Internal 1 Internal 1 Internal 2 Extl Ext2 Page 235 A 1 0 peak voltage input is required for calibrated FM deviation settings The EXT 1 LO HI and EXT 2 LO HI display annunciators will turn on if the peak input voltage differs from 1 0 volt by more than 3 0 The LO HI annunciators only function for ac coupled external inputs PSG A Series This softkey enables you to change the starting frequency of the internally generated modulation source for swept sine frequency modulation Preset Range Location Remarks 400 0 Hz 1 0 Hz2 1 0 MHz minimum increment is 1 0 Hz Page 236 This key is coupled to the FM Rate softkey in the initial FM menu and the FM Tone 1 Rate softkey in the FM dual sine menu Any value set for FM Start Rate is reflected in the FM Rate and FM Tone 1 Rate softkeys 148 Chapter 5 Key Reference F FM Stop Rate Supported PSG A Series This softkey enables you to change the ending frequency of the internally generated modulation source for swept sine frequency modulation Preset 400 0 Hz Range 1 0 Hz2 1 0 MHz minimum increment is 1 0 Hz Location Page 236 Remarks This key is coupled to the FM Tone 2 Rate softkey in the FM dual sine menu
206. you do not find a solution here refer to the service guide Can t Turn Off Help Mode 1 Press Utility gt Instrument Info Help Mode 2 Press Help Mode Single Cont softkey until Single is highlighted There are two help modes single and continuous available on the signal generator In single mode the factory preset condition when you press the Help key help text is provided for your next key press Now press any key and you will exit the help function and the function of the key you pressed is also executed In continuous help mode when you press the Help key help text is provided for your next key press and that key s function is also executed except for the Preset key You will stay in help mode until you press the Help key again or you toggle back to single mode No RF Output Check the RF ON OFF annunciator on the display If it reads RF OFF press RF On Off to toggle the RF output on No Modulation at the RF Output Check the MoD ON OFF annunciator on the display If it reads MoD OFF press Mod On Off to toggle the modulation on Although you can set up and enable various modulations the RF carrier is modulated only when you have also set Mod On Off to On 76 Chapter 4 Solving Problems If You Encounter a Problem RF Output Power too Low 1 Look for an OFFS or REF indicator in the AMPLITUDE area of the display OFFS tells you that an amplitude offset has been set An amplitude offset changes the value s
207. you to select the triggering mode for the swept sine amplitude modulation Preset Free Run Choices Free Run Trigger Key Bus Ext Location Page 231 Remarks You can also configure the polarity of the TTL signal output at the TRIGGER OUT connector using the Trigger Out Polarity Neg Pos softkey on this menu Refer to Trigger Out Polarity Neg Pos on page 222 AM Tone 1 Rate Supported PSG A Series This softkey enables you to set the internal modulation frequency for the AM tone 1 of the dual sine AM waveform Preset 400 0 Hz Range 0 5 Hz2 1 0 MHz minimum increment allowed is 0 5 Hz Location Page 231 Remarks This softkey is coupled to the AM Rate softkey in the AM menu and the AM Start Rate softkey in the AM Dual Sine menu Any value set for AM Tone 1 Rate is reflected in the AM Rate and AM Start Rate softkeys AM Tone 2 Ampl Percent Of Peak Supported PSG A Series This softkey enables you to adjust the amplitude of the alternate frequency as a percentage of the total amplitude For example if the tone 2 amplitude is set to 30 of the total amplitude then the primary frequency is 70 of the total amplitude Preset 50 0 Range 0 1 99 9 Location Page 231 Remarks This is applicable for the dual sine function only Chapter 5 113 Key Reference A AM Tone 2 Rate Supported PSG A Series This softkey enables you to set the internally generated modulation frequency for the amplitude modulation tone 2 of the du

User's Guide, Agilent PSG Family Signal Generators

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