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User`s Guide - High Speed Device Group

1. CONT T TTT aN a SS BRRR ANLAR T T a A DR OS E E E D G A a E S E A E N HE ot Tr Ww Oo mV sass H fi L Py mV a i 40 E 50 y ie HHHH HH 60 EA HE H 66 B 70 44 mV 80 40 30 20 10 O 10 20 30 DETECTOR INPUT POWER dBM Figure 2 2 Typical Diode Detector Response at 25 C Externally Leveling the Sweeper leveling with detectors couplers splitters dBV dBV dBV dBV dBV dBV dBV dBV dBV dBV dBV dBV dBV pg431ab 2 5 Externally leveling the Sweeper leveling with detectors couplers splitters External leveling with the option 1E1 step attenuator Some external leveling applications require low output power from the sweeper The sweeper automatically uncouples the attenuator from the ALC system for all external leveling points Note that in external leveling modes the UNCPLD annunciator is lit For example leveling the output of a 30 dB gain amplifier to a level of 10 dBm requires the output of the sweeper to be around 40 dBm when leveled At some frequencies this level is beyond the range of the ALC modulator alone If so the UNLEV warning message is displayed Inserting 40 dB of attenuation results in an ALC level power level attenuator
2. pg4Bab Figure 14 1 The Entry Group 14 2 Entry Keys OO OW When one of these keys is pressed the value of a numeric parameter is increased or decreased by the step size See Table 14 1 If the active parameter selections are non numeric or discrete selections such as On Off then the M J keys will scroll through the available selections For frequency and power parameters the value of the step size can be defined by the user See STEP SIZE For other numeric parameters the step size is fixed either as a 1 2 5 sequence or a fixed single step size For the parameters with a 1 2 5 sequence the first press of the key causes the active parameter to step up or down to a decade multiple of 1 2 or 5 each subsequent press steps the active parameter to the next higher or lower decade multiple of 1 2 or 5 The table below lists the numeric parameters in alphabetic order whether the step size is settable or fixed and the step size Table 14 1 Step Sizes Numeric pene rat en Settable Center Frequency Settable Frequency Step Size Power Level cw Settable Frequency Step Size Power Offset Dwell Time Fixed 1 2 5 Sequence Power Sweep Ext Cal Coup Fact Settable Power Step Frequency Multiplier Fixed Frequency Offset Settable HP IB Address Manual Sweep Freq Settable Marker A Ref Marker Frequency Settabla cy S Size Pulse Period Pulse Width ep Size Slope Span ep Size Start Fre
3. 4 The Modulation keys allow selection of pulse AM or FM modulation 6 The SWEEP OUT BNC connector provides voltage proportional to the sweep ranging from OV et the start of a sweep to 10V at the end of the sweep regardless of sweep width 6 The Automatic Level Control voltage input ALC IN connector is used as the feedback path to the sweeper when its RF output power level is being leveled externally 7 The Power keys allow selection of the RF output power level of the sweeper as well as other power related functions such as Automatic Level Control ALC The ALC MODE f key is used to select the method used to regulate the sweeper output power level Either internal leveling or external leveling with a diode power meter or source module can be selected Additional equipment is required when external leveling iS used 6 The date entry keys are used to enter and or modify various sweeper parameters The key cancels all or part of an erroneous parameter entry before it has been terminated The terminator keys the rightmost column of keys are used to choose the units for the entered parameter as well as to terminate the parameter entry The DU and STEP SIZE keys are used to increase or decrease a parameter in predetermined steps 9 The RF ON OFF key is used to toggle the RF output power on and off 10 The RF OUTPUT connector mates with a female APC 3 5mm precision connecto
4. 15 25 Special Functions 18 DP This function allows you to select whether the decimal point appears as a DEFIN period or as a comma Associated SCPI Commands None 15 26 Special Functions 19 CONTROL MODE 19 This function allows you to set your sweeper to either the master or slave CONTROL state For more information on master slave operation refer to Chapter 6 MODE Operating a Master Slave Setup Associated SCP Commands SWEep CONTrol TYPE MASTer Sets the sweeper to the master state SWEep CONTrol TYPE SLAVe Sets the sweeper to the slave state 15 27 21 FULL SELFTST Special Functions This function displays the results of the last time the self test was run or displays HCTRLIN if the test has not been run since the last time power was turned on Pressing the uz s enter Key will activate the self test All external cables must be disconnected prior to running the self test While the test is being performed a wait message will appear in the right hand display and when the test is done the results will be displayed If the self test passed the results will read Full Test FASSED If there is a failure the test that failed will appear in the MARKER SWEEP STATUS display preceded by gt If more than one test failed the most significant failure will be displayed Before sweeper operation can be continued a preset must be performed If the self test fails does not
5. Indicates that the command CA was detected while the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 178 Expression data not allowed CI No Intensity Crystal Markers Allowed 303 Indicates that the command CI was detected while the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 178 Expression data not allowed DP Display Blanking is always ON 304 Indicates that the command DP was detected while the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 178 Expression data not allowed IX OX No Micro Learn Strings Allowed 305 Indicates that the commands IX or OX were detected while the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 16 25 Error Messages SCPI Error Messages 306 307 308 309 310 16 26 178 Expression data not allowed NT Network Analyzer Trigger Ignored 306 Indicates that the command NT was detected while the instrument was using the HP 8350 compatible language These commands are accepted bu
6. Phase lock with the Reference oscillator was lost or could not be achieved 300 Device specific error Fractional N VCO Unlock 803 Phase lock with the Fractional N VCO was lost or could not be achieved 300 Device specific error Heterodyne Oscillator Unlock 804 Phase lock with the Heterodyne oscillator was lost or could not be achieved 16 35 Error Messages Miscellaneous Hardware Dependent Errors 901 902 903 904 905 906 221 Setting conflict FNCW Instrument Not In CW Mode 901 300 Device specific error Need Same Attenuator Settings In Alt Sweep Mode 902 When using the Alternate Sweep feature the attenuator settings must be the same This prevents the attenuator from being continuously switched between two different attenuation values 300 Device specific error Bad Sweep Mode Alternate Sweep Rejected 903 The instrument cannot sweep alternately with a stepped sweep as one of the sweep types 300 Device specific error Bad Magic Numbers in MM Head 904 The instrument will attempt to read known constants from predefined memory locations in the mm wave source module NOVRAM non volatile RAM and ROM An error condition occurs if the constants are not read back correctly and the instrument reverts back to its stand alone mode 300 Device specific error Bad Checksum in MM Head 905 The error condition occurs when the checksum test fails
7. 199 100 indicates that an IEEE 488 2 syntax error has been detected by the instrument s parser The occurrence of any error in this class shah cause the command error bit bit 5 in the event status register IEEE 488 2 section 11 5 1 to be set one of the following events has occurred e An IEEE 488 2 syntax error has been detected by the parser That is a controller to device message was received which is in violation of the IEEE 488 2 standard Possible violations include a data element which violates the device listening formats or whose type is unacceptable to the device An unrecognized header was received Unrecognized headers include incorrect device specific headers and incorrect or unimplemented IEEE 488 2 common commands e A Group Execute Trigger GET was entered into the input buffer inside of an IEEE 488 2 lt PROGRAM MESSAGE gt Events that generate command errors shall not generate execution errors device specific errors or query errors see the other error definitions in this chapter Error Messages SCPI Error Messages Error Number 100 101 102 103 104 105 108 Error Description description explanation examples Command error This is the generic syntax error for devices that cannot detect more specific errors This code indicates only that a Command Error as defined in IEEE 488 2 11 5 1 1 4 has occurred Invalid character A syntactic element contains
8. Associated SCP Commands MARKer AOFF Turns al markers off Associated 8350 Commands SHMO Turns all markers off 9 7 Marker Keys This key toggles the marker A mode on and off If marker A mode is off when this key is pressed the following things happen The marker A mode is turned on the active marker becomes the active parameter and the difference frequency between this marker and the A Reference Marker is displayed in the MARKER SWEEP STATUS area in the format Mtn rs lt sign gt lt digits gt lt units gt where n is the active marker and r is the number of the A reference marker The MKR A LED annunciator is turned on and MARKer MODE is set to DELTA The A reference marker is turned on and cannot be turned off while Marker A mode is on If no marker was the active marker since the last time was pressed M2 becomes the default active marker If marker A mode is on when this key is pressed the following things happen The mode is turned off the active marker becomes the active parameter displayed in the MARKER SWEEP STATUS area e the MKR A LED annunciator is turned off e and MARKer MODE is set to FREQuency Associated SCPI Commands MARKer n MODE FREQuency DELTa Same as pressing MKR Aj MARKer n DELTa lt num gt lt num gt Used to query over HP B Associated 8350 Commands SMH1 lt ni gt lt n2 gt Sets marker A mode to on 9 8 Marker Keys MKR A REF This key is used to select a mar
9. Cleaning Instructions The connectors on the sweeper should be cleaned periodically for good connections The cabinet should only be cleaned using a damp cloth Index Index Special C keys 14 3 characters defined xii 10 MHz REF IN connector 7 5 10 MHz REF OUT connector 7 5 1 kHz square wave modulation 10 4 488 1 compatibility codes 7 12 accuracy power specifications 17 8 ac locked FM mode 10 7 ac power requirements 17 17 active marker 9 3 defined 9 3 add attenuator option 17 19 add high stability timebase option 17 19 address power meter 15 18 to set 8 10 to view 8 10 ALC IN connector 7 5 alc key 13 7 key 13 7 all off function markers 9 7 ALT annunciator 7 20 alternate sweep to turn off 8 11 alternate sweep function 8 1 alt n function 8 11 AM specifications 17 13 AM INPUT connector 7 5 key 10 6 AM mode key 10 6 AM modulation 10 2 AM modulation modes 10 6 AM off mode 10 6 Index 2 amplitude markers 9 5 analog sweep mode 12 8 specifications 17 5 annunciators 7 19 display 7 19 fluorescent display 7 19 LED 7 19 ANSI Standard MC 1 1 7 12 array user flatness 5 2 ATT COUPLING 15 1 1 attenuator option 17 19 ATT SETTING 15 12 automatic leveling control mode 13 7 automatic sweep time 15 8 autotracking 1 5 14 10 auxiliary interface connector 7 8 pinout 7 9 blanking the display 15 25 BNC connectors 7 4 7 book conventions xiv book introduction
10. Hs Location Date Dixon Browder QA M anager Safety Information Statement of Compliance This instrument has been designed and tested in accordance with IEC Publication 348 Safety Requirements for Electronic Measuring Apparatus and has been supplied in a safe condition The instrument instruction manuals contain information and warnings which must be followed by the user to ensure safe operation and to retain the instrument in a safe condition Environmental Conditions The HP 83750 series synthesized sweepers may be operated safely if the following environmental conditions are met e Indoor use e Altitude up to 2000 m e Temperature 5 C to 40 C e Maximum relative humidity 80 for temperatures up to 31 C decreasing linearly to 50 relative humidity at 40 C e Mains supply voltage fluctuations not to exceed the specified range e Pollution degree 2 according to IEC 664 e Transient overvoltages according to Installation Category II according to IEC 1010 18 8 Safety and Regulatory Information Ventilation Requirements When installing the instrument in a cabinet the convection into and out of the instrument must not be restricted The ambient temperature outside the cabinet must be less than the maximum operating temperature of the instrument by 4 C for every 100 Watts dissipated in the cabinet If the total power dissipated in the cabinet is greater than 800 Watts then forced convection must be used
11. See IEEE 488 2 7 7 1 4 Character data not allowed A legal character data element was encountered where prohibited by the device String data error This error as well as errors 151 through 159 are generated when parsing a string data element This particular error message should be used if the device cannot detect a more specific error Invalid string data A string data element was expected but was invalid for some reason See IEEE 488 2 7 7 5 2 for example an END message was received before the terminal quote character String data not allowed A string data element was encountered but was not allowed by the device at this point in parsing Block data error This error as well as errors 161 through 169 are generated when parsing a block data element This particular error message should be used if the device cannot detect a more specific error Invalid block data A block data element was expected but was invalid for some reason See IEEE 488 2 7 7 6 2 for example an END message was received before the length was satisfied Block data not allowed A legal block data element was encountered but was not allowed by the device at this point in parsing 16 11 Error Messages SCPI Error Messages 170 171 178 180 181 183 184 Expression error This error as well as errors 171 through 179 are generated when parsing
12. 1 Press PRESET 2 Activate the slave mode by pressing SHIFT Hz s ENTER Press the key until the display reads Cntr 1Mode SLAYE 3 Set the desired frequencies by using the keys the keys or the GW key NOTE It is recommended that the master and slave sweepers frequencies not differ more than 5 GHz at any point in the sweep If this requirement is not met it is possible for unlocks to occur If frequency offsets greater than 5 GHz are required it may be necessary to reduce the sweep speeds to eliminate unlocks 4 Set the desired power level using the POWER Level key For swept measurements 5 Set the sweep time to the same value as the master sweeper using the TIME key The recommended minimum sweep time for master slave mode is 100 ms For stepped measurements 6 Set the sweep mode to stepped by pressing SHIFT SWEEP MODE f and then pressing the f key until the display reads Sweep St ep Cant 7 Set the number of points to the same value as the master sweeper by pressing POINTS and entering the number of points 6 6 See also For a pinout description of the source synchronization cable see the Multi pin Connectors section of Chapter 7 Front Rear Panel 6 7 Front Rear Panel Front Rear Panel This chapter contains detailed information on various aspects of the sweeper front and rear panel Information on the following can be found in this chapter e Connectors
13. B versions of both the HP 83751 and HP 83752 provide high power output approximately 17 dBm maximum leveled power The sweepers are SCPI and HP IB programmable with HP 8350 HP IB mnemonics for drop in replacement of an HP 8350 sweep oscillator The sweepers are designed for optimum use with HP 8757 scalar analyzers For specification and option information refer to Chapter 17 Specifications and Options in this manual This User s Guide is written to provide operating information to the user who is comfortable with the front panel layout and basic operation of the sweeper For installation and basic sweeper operation refer to the HP 83751A B and HP 83752A B Synthesized Sweepers Installation and Quick Start Guide provided with your shipment iii The Synthesized Sweeper at a Glance The following Egure and accompanying text explain some features of the sweeper 7 ES AERE N 6 7 8 8 10 The Synthesized Sweeper pg425ab 1 The SAVE and RECALL keys are used to save and subsequently recall Sweeper operating parameters from one of nine nonvolatile register locations 2 The line POWER switch turns the sweeper to either on or standby 3 The Marker keys allow selection of up to ten markers to be set anywhere within the current frequency range Marker A measurements are made using these keys as well
14. Too many digits The mantissa of a decimal numeric data element contained more than 255 digits excluding leading zeros See IEEE 488 2 7 7 24 1 Numeric data not allowed A legal numeric data element was received but the device does not accept one in this position for the header Suffix error This error as well as errors 131 through 139 are generated when parsing a suffix This particular error message should be used if the device cannot detect a more specific error Invalid suffix The suffix does not follow the syntax described in IEEE 488 2 7 7 3 2 or the suffix is inappropriate for this device Suffix too long The suffix contained more than 12 characters See IEEE 488 2 7 7 3 4 Suffix not allowed A suffix was encountered after a numeric element which does not allow suffixes Character data error This error as well as errors 141 through 149 are generated when parsing a character data element This particular error message should be used if the device cannot detect a more specific error Invalid character data Either the character data element contains an invalid character or the particular element received is not valid for the header 16 10 144 148 150 151 158 160 161 168 Error Messages SCPI Error Messages Character data too long The character data element contains more than twelve characters
15. showing the frequency as zeros 15 22 display blanking 15 25 Index 4 documentation options 17 22 DP DEFIN 15 26 dwell time 12 4 E electrical options 17 19 enabling the save key 15 24 entry keys 14 2 10 entry off function 14 9 environmental conditions 18 8 environmental operating conditions 17 16 error message action required 16 5 detailed description 16 5 manual error number 16 5 SCPI error message 16 5 SCPI error number 16 5 error message format 16 5 error messages 16 2 36 to view 8 11 error messages list 16 5 22 error numbers 16 4 errors permanent 16 2 execution errors 16 13 EXT ALC annunciator 7 21 ext cal function 13 9 external am mode 10 6 external cal 13 9 external leveling 2 2 11 diode 13 7 low output 2 6 power meter 13 7 specifications 17 9 with detectors couplers or splitters 2 3 5 with millimeter heads 2 9 with power meters 2 7 with source modules 2 9 external modulation 10 3 external pulse mode 10 4 external trigger mode 12 7 EXTMOD annunciator 7 21 extra operating documentation option OB2 17 22 EXT REF annunciator 7 20 Index 5 F factory preset conditions instrument 8 4 factory preset mode 8 5 features overview iv firmware revision to view 15 21 five year MIL STD calibration service option W54 17 21 five year return to HP calibration service option W52 17 21 flatness specifications 17 8 user specifications 17 9 flatness cal
16. ALC could not achieved level power under the current conditions 300 Device specific error Instrument Not in CW Mode 703 It is required that the instrument first be in CW mode before a YTF peak is executed 16 33 Error Messages SCPI Error Messages 704 705 706 709 710 711 712 713 16 34 300 Device specific error No Sufficiently Wide Pass Band Was Found 704 No sufficiently wide YTF pass band was found in the initial phase of the peaking algorithm 300 Device specific error The fine peak phase of the peaking algorithm failed 705 For unspecified reasons the later tie peak phase of the peaking algorithm failed 300 Device specific error SAF Tracking Failure 706 The SAF tracking algorithm failed for unspecified reasons 300 Device specific error Calibration Security is LOCKED Unable to Access Cal Data 709 Current Calibration Security system is in LOCKED position Calibration data is unable for write access To UNLOCK the Calibration Security system refer to the Service Guide for CPU board dip switch configuration 300 Device specific error Flatness Calibration Failed 710 The Flatness calibration algorithm failed for unspecified reasons 300 Device specific error Flatness Calibration Failed 711 The Flatness calibration algorithm failed due to an error in reading power from the external power meter 300 Device specific error
17. ATT This function sets the output attenuation level Note that when setting the SETTING attenuator level to 10 dB the output power will be decreased by 10 GB Setting a specified attenuation turns the RF attenuator coupling switch off NOTE This function is visible with all instruments but only active in instruments with Option 1E1 Associated SCPI Commands POWer ATTenuation lt num gt DB Sets the RF attenuator to the desired attenuation 15 12 8 ROSC AUTO Special Functions 8 ROSC AUTO This function sets the automatic reference oscillator selection switch When this switch is on the instrument automatically selects the frequency standard to be used When the selection switch is on the instrument will automatically select an external standard if one is connected to the rear panel 10 MHz REF IN connector If there is no external standard connected the instrument will select the optional internal standard Option 1E5 if so equipped Or if there is no internal standard the internal 100 MHz VCXO will operate in a free run mode If ROSC SOURCE special function number 9 is used to set the reference to a specific reference the automatic reference selection switch will be turned off Associated SCPI Commands ROSCillator SOURce AUTO ON Turns the automatic reference selection switch on ROSCillator SOURce AUTO OFF Turns the automatic reference selection switch oh 15 13 Special Functions
18. LEO SR1 RL1 PPO DC1 DT1 CO 1 2 3 28 El Source Handshake complete capability Acceptor Handshake complete capability Talker capable of basic talker serial poll and unaddress if MLA Talker Extended address no capability Listener capable of basic listener and unaddress if MTA Listener Extended address no capability Service Request complete capability Remote Local complete capability Parallel Poll no capability Device Clear complete capability Device Trigger complete capability Controller capability options CO no capabilities Cl system controller C2 send IFC and take charge C3 send REN C28 send I F messages Electrical specification indicating open collector outputs These codes are described completely in the IEEE Standard 488 1978 IEEE Standard Digital Interface for Programmable Instrumentation or the identical ANSI Standard MC1 1 7 12 Front Rear Panel Connectors SOURCE MOOULE This connector sends and receives digital and analog signals to and from an INTERFACE Option 1EE HP 83550 Series millimeter wave source module With the source module Only connected the sweeper assumes the characteristics of the source module 5V RESERVEDS5 V GHz RTN ANLG GND MOD D2 MOD D1 RESERVED NOT USED RET SHELL EXT LVL RET L MOD RF OFF 0 5V GHz MOD SENSE DIG GND EXT LVL COAX 15V RESERVED pg416ab Figure 7 5 Interface Signals of the Sour
19. The FM mode choices are FM Off AC Locked FM DC Unlocked FM In this mode external FM modulation is disabled The displayed message is FM 0 f In this mode the RF output signal is synthesized and external FM modulation is enabled The bandwidth is restricted to above approximately 50 kHz The user is cautioned that the low frequency deviation is limited in this mode to approximately 25 times the rate of the signal The front panel EXT MOD annunciator is turned on The displayed message is FM AC Lack ed In this mode the RF output signal is not synthesized and external FM modulation is enabled with a bandwidth that is dc coupled In this mode the RF frequency accuracy and residual FM are severely degraded and may be out of spec The front panel UNLOCKED FM LED annunciator is turned on The EXT MOD annunciator is turned on The displayed message is FM DC Unlocked Associated SCPI Commands FM COUPling AC Sets the FM mode to AC locked FM FM COUPling DC Sets the FM mode to DC Unlocked FM STATe FM STATe FM ON Turns on the selected FM mode OFF Turns FM mode off 10 7 11 Frequency Keys Frequency Keys FREQUENCY OFFSET gt START MKR CF CF SWEPT CW TF CW Nips ne N a SPAN M1 START M2 S TOP Figure 1 l l The Frequency Group All the frequency functions with the exception of the multiplier setting see MULT accept
20. e Display e HP IB Lang Address Switch e Knob e Line Power Switch e Power Cables 7 2 Connectors HEWLETT PACKARD 10 00000MHz a OO0O000GHz Mi 0000C Ez 10 veer SHIFT START CF OR MAN SEP INT STOP SPAN MAT OFFSET MAC MERE 00 INTWOO UNLOCK SIEP UNCPLO EXTALC PWRIWP ELLOP UNLEY RF T ee La ine i 1 0 X SWEEP OUT ALC IN RF OUTPUT pg412ab Figure 7 1 Sweeper Connectors Front Panel 7 3 Front Rear Panel Connectors SOURCE MODULE INTERFACE Z AXIS OPT 1EE ONLY BLANK MKRS RF OUTPUT SWEEP STOP PULSE OPT 1E4 ONLY OUTPUT SWEEP IN OUT FM INPUT skeer z aks svor i iil j p PU SOURCE MODULE INTERFACE OUWPUT BLANK MKRS SWEEP 1N QUT CJ ka OOO fata aa C VOLTS GHz AM TRIGGER IH FM INP AUXILIARY INTERFACE OUTPUT INPUT INPUT S y p Q A H B OUTPUT VAN LANG ADDRESS Q HP IB 10MH Co REF_OUT eo O WIN Ub i CZ H AUXILIARY HP 1B VOLTS GHz AM TRIGGER TRIGGER 10MHz 10MHz INTERFACE OUTPUT INPUT OUTPUT INPUT REF OUT REF IN pg413ab Figure 7 2 Sweeper Connectors Rear Panel 1 4 Front Rear Panel Connectors BNC Connectors 10 MHz REF IN 10 MHz REF OUT ALC IN AM INPUT FM INPUT PULSE IN OUT This rear panel female BNC connector accepts a 5 to 10 dBm signal from an external t
21. frequency in GHz to compensate for the power loss of an external device or cable The units are dB GHz Selecting this function makes power slope the active parameter displayed in the MARKER SWEEP STATUS area If the power slope is not zero the SLOPE annunciator is turned on A positive or negative value may be entered The power must remain within the ALC leveling range and may not cross an attenuator boundary The value of power without power slope correction i e at 0 Hz is displayed in the POWER area The display format is Slope w H dB GHz Resolution is 0 01 dB The power slope function can be turned off by selecting SLOPE again or by setting the slope to 0 00 dB GHz Associated SCPI Commands POWer SLOPe STATe ON Tums power slope on POWer SLOPe STATe OFF Turns power slope oh POWer SLOPe lt num gt DB Sets the slope to the desired value Associated 8350 Commands SL1 lt num gt suffix Turns power slope on SLO Turns power slope off 13 6 Power Keys ALC MODE f ALC MODE Pressing the arc move ff key displays the current ALC mode and allows it to e changed When this key is pressed the current ALC mode is displayed in the MARKER SWEEP STATUS area The mode can be changed to the next choice by pressing the key again or by pressing the f keys The ALC mode choices are Internal Leveling Unleveled NOTE The ALC point is inside the source The displayed message is ALC
22. was detected while the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 178 Expression data not allowed SX No External Sweep Allowed 312 Indicates that the command SX was detected white the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 16 27 Error Messages SCPI Error Messages Diagnostics and Self test Errors 401 402 403 404 405 300 Device specific error Test Patch Table Overflow 401 Indicates that a Self Test Patch was requested for storage in EEPROM Patch Table but the table already has the maximum allowed 50 300 Device specific error Illegal Test Patch Name 402 Indicates that an illegal Self Test Patch lt name gt has been acquired to set a Self Test Patch in EEPROM Node lt name gt must be a test node and it cannot be a menu node Any self test whose name is preceded by on the front panel display is a self test menu By convention any name which starts with an assembly number e g A4CPU A12RFintf is a menu And any name that contains the word Menu is a menu However not all entries were able to follow this convention due to display width limitations 222 Data out of range Test Patch Value Out Of Range 403 Indicates that us
23. 1 Step Sizes ess ead ok ok oh Mee ee eae a a ae ae ee 14 3 15 1 Special Functions for the HP 83750 Series Sweepers 15 4 15 2 FM Sensitivity When Using Source Modules 15 19 Contents 9 Performing the Operator s Check Performing the Operator s Check The operator s check consists of a series of tasks that when completed will either assure you that your instrument is operating correctly or will help to point to problem areas if it is not The operator s check does not ensure performance to specifications The operator s check should be performed on a weekly basis or whenever the integrity of the sweeper is in question To perform the operator s check the following tasks should be performed in order 1 Run the full self test 2 Run peak power tracking 3 Check the maximum leveled power 4 Check the output power 1 2 To run the full self test Attention All external cables including HP IB and BNC cables must be disconnected from the sweeper prior to running the full self test Failure to do so may cause self test failures or lock ups 1 Disconnect all external cables prior to running the self test 2 Activate the FULL SELFTST special function by pressing the following keys on the sweeper PRESET SHIFT SPECIAL Hz s ENTER The message that appears in the MARKER SWEEP STATUS display is one of the following Full Test HOTRUH Full self test has not been performed since
24. 168 03 331 6111 IN PEOPLE S REPUBLIC OF CHINA China Hewlett Packard Ltd PO Box 9610 Beijing 4th Floor 2nd Watch Factory Main Bldg Shuang Yu Shu BeiSan Huan Rd Beijing PRC 256 6888 IN SINGAPORE Hewlett Packard Singapore Pte Ltd 1150 Depot Road Singapore 0410 273 7388 Telex HPSGSO R 34209 Fax 65 2788990 IN TAIWAN Hewlett Packard Taiwan 8th Floor Hewlett Packard Building 337 Fu Hsing North Road Taipei 102 712 0404 IN ALL OTHER LOCATIONS Hewlett Packard Inter Americas 3495 Deer Creek Rd Palo Alto California 94304 CAUTION WARNING Safety Notes The following safety notes are used throughout this manual Familiarize yourself with each of the notes and its meaning before operating this instrument The caution note denotes a hazard It calls attention to a procedure which if not correctly performed or adhered to could result in damage to or destruction of the instrument Do not proceed beyond a caution note until the indicated conditions are fully understood and met The warning note denotes a hazard It calls attention to a procedure which if not correctly performed or adhered to could result in injury or loss of life Do not proceed beyond a warning note until the indicated conditions are fully understood and met Instrument Markings Instruction The instruction manual symbol The product is marked with this symbol when it is necessary Manual for the user to refer to the in
25. 28 ATT COUPLING 15 11 ATT SETTING 15 12 CONTROL MODE 15 27 CWCF AUTO 15 6 CW PEAKNG 15 7 DP DEFIN 15 26 FM SENSITIVITY 15 19 FULL SELFTST 15 28 FW REVISION 15 2 1 LANGUAGE 15 20 PWR METER AD 15 18 PWR METER TY 15 17 ROSC AUTO 15 13 ROSC SOURCE 15 14 security 15 22 STEP SWPTIME 15 9 SWPTIME AUTO 15 8 SWPTIME LLIM 15 10 V GHz OFFSET 15 16 V GHz SCALE 15 15 special functions menu 8 8 special functions table of 15 4 Index 14 specifications 17 3 spectral purity specifications 17 1 1 spurious non harmonic specification 17 1 1 stability timebase specifications 17 4 standard time specifications 17 4 standby 7 27 START annunciator 7 20 start key 11 4 key statement of compliance 18 8 STEP annunciator 7 21 step attenuator option 17 19 step keys 14 3 stepped sweep to generate 3 2 stepped sweep mode 12 8 specifications 17 5 stepped sweep time 3 2 step sizes table 14 3 STEP SWPTIME 15 9 STOP annunciator 7 20 stop key 11 6 key 11 6 STOP SWEEP connector 7 6 subharmonics specification 17 11 17 3 analog speciEcations 17 5 manual 12 5 power 13 5 power specification 17 9 ramp specifications 17 5 SWEEP annunciator 7 20 sweeper at a glance iv sweeper features overview iv sweeper introduction iii sweeper overview ili sweep keys 12 2 10 sweep mode 12 8 stepped specifications 17 5 Index 15 SWEEP OUT connector 7 6 sweep rate 12 4 sweep time
26. 4 Generating a Millimeter Signal Using millimeter heads with B model high power sweepers 4 3 Using millimeter heads with A model standard power sweepers 0 0 4 5 Se alon 4 4 bod te he eh Oe he 8 ee Ee 4 6 5 Creating User Flatness Arrays Creating a user flatness array 5 3 To set up the sweeper 02522 5 4 To set up the power meter s 2 ewe e 5 5 To start the user flatness cal 5 5 Creating a user flatness array for use in a scalar analysis measurement I pod cis le a EP EE 5 6 To set up the sweeper 2 2 ee eae 5 7 Contents 1 To set up the analyzer 29 6 6 4 6 Hee ee 5 7 To set up the power meter 5 8 To start the user flatness cal 2 2 aa ee 5 8 To reactivate the HP 8757 system interface 5 9 6 Operating a Master Slave Setup To set up the master sweeper 1 1 ee ee eee 6 4 To set up the slave sweeper 2 6 ee ee ee ee 6 6 See also r ana foe Gays Sy Pah ae Ghee eee a 6 7 7 Front Rear Panel Connectors soi doa a ee e a a o a a D a a 7 3 BNC Connectors amp ese aS Ae Se St aS 7 5 Multi pin Connectors 2 1 1 ee ee ee ee 7 8 AUXILIARY INTERFACE 2 2 48 7 8 BEL codes iiare O dee tee ta este ew ee 7 10 SOURCE MODULE INTERFACE Option 1EE Only 7 13 RF Output Connector 2 6 eee ee es 7 15 Display a 2 hy eh Bosh cle REN amp ae Res See Se 7 16 Frequency Display 2 4 25 ws
27. Flatness Calibration Failed Relinquish Failure 7 12 The Flatness calibration algorithm failed experienced difficulties in relinquishing control of the external power meter 300 Device specific error No Tracking With MMH 713 The SAF tracking algorithm is not allowed to run under millimeter head personality The millimeter head should be disconnected first 714 715 716 Error Messages SCPI Error Messages 300 Calibration Array Elements Sent In Descending Order 714 A calibration correction flatness array was sent in descending order The new array is rejected at the point of the descending element X which causes the array to be out of order The previous elements up to element X are being written over by the new elements and cannot be restored 300 Entered Password does not match the Security Password 715 The user is trying to change the calibration security password and the verified password is incorrect as it does not match the system security password 300 User Defined Password must be a 5 numerical digit 716 The user is trying to change the calibration security password and the new password is not a 5 digit numerical entry Loops Unlocked Errors 801 802 803 804 300 Device specific error YIG Oscillator Unlock 801 Phase lock with the YIG oscillator was lost or could not be achieved 300 Device specific error Reference Oscillator Unlock 802
28. Select SPECIAL 12 Hz s ENTER Use the keys to select the type of power meter you will be using 437B for this example 7 Select SHIFT SPECIAL Hz s ENTER_ Enter the HP IB address of the power meter you will be using for the calibration Thirteen is the default address for power meters To set up the analyzer 1 On the analyzer set up the appropriate measurement i e gain for an amplifier Calibrate the measurement thru and short open calibration Press on the analyzer to store the analyzer configuration and sweeper parameters in storage register 1 5 7 Creating User Flatness Arrays Creating a user flatness array for use in a scalar analysis measurement Attention Do not proceed until the HP 8757 system interface is turned off by pressing SYSTEM Then by pressing softkeys MORE SWEEP MODE and SYSINTF ON OFF on the analyzer To set up the power meter 1 Zero and calibrate the power meter sensor 2 Enter the appropriate power sensor calibration factors into the power meter 3 Enable the power meter sensor cal factor array For operating information on the HP 437B power meter refer to its operating and service manual 4 Connect the power sensor to the point where corrected power is desired See Figure 5 2 To start the user flatness cal 1 On the sweeper press FLTNESS CAL a Select whether to calibrate over StarStop correction points will be linearly spaced over the selected St
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30. System error Cannot Find Power Meter On HP IB Bus 205 Indicates that during a Flatness Calibration the instrument was trying to establish the control of a supported Power Meter but could not End it Flatness Calibration is aborted 310 System error Meter Returns Error Message 206 Indicates that during a Flatness Calibration the HP IB Power Meter error checking returns an error message of some type 310 System error Meter Data Measured Is Invalid or Out Of Range 207 Indicates that during a Flatness Calibration a reading return value which HP IB Power Meter measured is invalid or out of range Flatness Calibration is aborted 310 System error Unable To Receive Message From Meter 208 Indicates that during a Flatness Calibration a time out is happened while the instrument was waiting to receive a message from the Power Meter Flatness Calibration is aborted 16 24 Error Messages SCPI Error Messages Parsing and Compatibility Errors 301 302 303 304 305 178 Expression data not allowed C 1 4 No External Crystal Marker Allowed 301 Indicates that one of the commands Cl C2 C3 or C4 were detected while the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 178 Expression data not allowed CA No Amplitude Crystal Marker Allowed 302
31. _ STOP makes the frequency multiplier the active parameter displayed in the MARKER SWEEP STATUS area If the multiplier is not 1 the MULT annunciator is turned on The values of frequency shown in the FREQUENCY display are in accordance with the equation DisplayedFrequency Actual RF Frequency Multiplier Offset The multiplier value is displayed in the format MULTI FL I EF lt d ig it gt The value must be an integer between 1 and 36 There are no units The multiplier function can be turned off by selecting MULT again or by setting the multiplier to 1 Associated SCPI Commands FREQuency MULTiplier lt num gt Sets the frequency multiplier to the desired value FREQuency MULTiplier STATe ON Tums the frequency mu tiplier function on FREQuency MULTiplier STATe OFF Tums the frequency mu tipher function off Associated 8350 Commands SHFA lt numeric value gt Sets the frequency multiplier to the desired value 11 7 Frequency Keys Pressing the key puts the instrument into the swept frequency mode and allows you to change the center frequency of the sweep This key puts the instrument into sweep mode and displays the center frequency and frequency span in the FREQUENCY display The CF and SPAN Annunciators are turned on The center frequency becomes the active parameter If the center frequency is changed to a value that would put one end of the span beyond the legal range of the start and stop frequencies th
32. about 1 ms of delay between the positive edge and when the sweep actually starts The displayed message is Sup Tei g Ext ern NOTE External Trigger mode will not work if Step Sweep External Trigger mode is selected Single Trigger In this mode the sweep is initiated when the user presses SINGLE TRIG or by the HP IB bus The displayed message is Sup Trig single Associated SCPI Commands INITiate CONTinuous ON Sets the trigger mode to continuous TRIGger SOURce IMMediate Sets the sweep to be triggered immediate amp after the last sweep TRIGger SOURce EXTernal Sets the sweep to be triggered by the external rigger input signal INITiate CONTinuous OFF Sets the trigger mode to singh ABORT Causes a sweep in progress to abort and reset INITiate IMMediate Causes the nitiation of a sweep Sweep Keys TRIG MODE T Associated 8350 Commands Ti Sets trigger mode to continuous internal T3 Sets trigger mode to external T4 Sets trigger mode to single SWEEP MODE t When this function is selected by pressing SHIFT TRIG move f the current sweep mode is displayed in the MARKER SWEEP STATUS display area The mode can be changed to the next choice by pressing the TRIG MODE 11 keys again or by pressing the ff D keys Note that selecting manual sweep overrides this selection The sweep mode choices are Analog Sweep In this mode analog or ramp sweep mode is enabled The display shows Sweep Fina 1 og S
33. after the instrument is up and running a series of power on self tests have been run and RAM Test is found to have high byte error 330 Self test failed Power Up Calibration Corrupted Default Used 420 Indicates that after the instrument is up and running a series of power on self tests have been run and error correction code checking has found that contents of one of the calibration arrays were found corrupted A default calibration has been used 421 422 423 424 430 Error Messages SCPI Error Messages 330 Self test failed Power Up Calibration Defaulted 421 Indicates that after the instrument is up and running a series of power on self tests have been run and error correction code checking has found that contents of one of the calibration arrays were found corrupted A default calibration has been used 330 Self test failed Power Up Calibration Improved 422 Indicates that after the instrument is up and running a series of power on self tests have been run and error correction code checking has corrected a one bit error when recovering date from the EEPROM Proper operation of the instrument is guaranteed It is suggested that a calibration save operation be performed to permanently correct this problem 330 Self test failed Power Up DSP Handshake Failed 423 Indicates that during the series of power on self tests the handshake control with the Digital Signal Processor has fail
34. an expression data element This particular error message should be used if the device cannot detect a more specific error Invalid expression The expression data element was invalid See IEEE 488 2 7 7 7 2 for example unmatched parentheses or an illegal character Expression data not allowed A legal expression data was encountered but was not allowed by the device at this point in parsing Macro error This error as well as errors 181 through 189 are generated when defining a macro or executing a macro This particular error message should be used if the device cannot detect a more specific error Invalid outside macro definition Indicates that a macro parameter placeholder lt number was encountered outside of a macro dehnition Invalid inside macro definition Indicates that the program message unit sequence sent with a DDT or DMC command is syntactically invalid See IEEE 488 2 10 7 6 3 Macro parameter error Indicates that a command inside the macro definition had the wrong number or type of parameters 16 12 Error Messages SCPI Error Messages Execution Error An lt error event number gt in the range 299 200 indicates that an error has been detected by the instrument s execution control block The occurrence of any error in this class shall cause the execution error bit bit 4 in the event status register IEEE 488 2 section 1 1 S 1 to be
35. display shows the millimeter head output power A U N e 2 10 Externally leveling the Sweeper See also To obtain flatness corrected power refer to Creating User Flatness Correction Arrays later in this manual Generating a Stepped Sweep Generating a Stepped Sweep To generate a stepped sweep perform the following steps 1 Press PRESET 2 Select the desired and frequencies 3 Select the desired number of points by pressing POINTS and entering the desired number 4 Press SWEEP MODE 5 Press the key The MARKER SWEEP STATUS display should read Sweeps Step Cont and the STEP annunciator should be lit 6 The instrument is now running in stepped sweep mode NOTE The stepped sweep time is calculated by the following formula Stepped Sweep Time Dwell Time Number of Points Therefore the stepped sweep time can be changed in one of two ways e By changing the dwell time Press while in stepped sweep mode e By changing the number of points Press POINTS 3 2 Generating a Millimeter Signal Generating a Millimeter Signal If your sweeper was ordered with Option 1EE you have the capability of using HP 83550 series millimeter head source modules with the sweeper The interface extender cable HP part number 5062 7202 that is provided with all option 1EE sweepers allows the source module to be positioned in front of the sweeper After a source module is connected to the sweeper
36. e An attempt is being made to read data from the output queue when no output is either present or pending e Data in the output queue has been lost Events that generate query errors shah not generate command errors execution errors or device specific errors see the other error definitions in this section 16 21 Error Messages SCPI Error Messages Error Number 400 410 420 430 440 Error Description description explanation examples Query error This is the generic query error for devices that cannot detect more specific errors This code indicates only that a Query Error as defined in IEEE 488 2 11 5 1 1 7 and 6 3 has occurred Query INTERRUPTED Indicates that a condition causing an INTERRUPTED Query error occurred See IEEE 488 2 6 3 2 3 for example a query followed by DAB or GET before a response was completely sent Query UNTERMINATED Indicates that a condition causing an UNTERMINATED Query error occurred See IEEE 488 2 6 3 2 2 for example the device was addressed to talk and an incomplete program message was received Query DEADLOCKED Indicates that a condition causing an DEADLOCKED Query error occurred See IEEE 488 2 6 3 1 7 for example both input buffer and output buffer are full and the device cannot continue Query UNTERMINATED after indefinite response Indicates that a query was received in the same program message after an query requesting an indefinite response w
37. e ee ea 7 17 Marker Sweep Status and Power Display 7 18 Annunciators a noe d e e ee E e a a p e A 7 19 HP IB Lang Address Switch o soa a ee ee ee 7 23 See Also mi Vike hed Sa R EE O a a ee 7 25 K ob S s eoan i ee ee a A E a al S 7 26 Equivalent SCPI Commands s soaa a a 7 26 Line POWER Switch oaoa e 7 27 Power Cables ins ao u korta a ada a e o we 7 29 8 Instrument State Keys P a at a IRA ose Ai a Da gaa aa A hee Ga 8 3 Gh gee taut auae van Ge Aa a Sar ake By Sew a dees 8 4 Ses esate oh BiG ok Se SEMIS aR ae oy SEO os GR etd Ach Ms 8 6 in Anaya hae se Se amp ee BG 8 8 na Ges WA SNe Re a e He at Ath he i Ge a k Aa 8 10 ed Goh era a Ge Ua tt Ses ans a a ede 8 11 Contents 2 10 11 12 13 14 Marker Keys BE A a E OFF MKR gt Modulation Keys PULSE MODE AM MODE FM MODE Frequency Keys l Afa mal 2 92 v lA 2 1 M2 SWEEP an weep Keys J m RIS i o 4 A la a TRIG MODE SINGLE TRIG POWER LEVEL POWER SWEEP ALC move ff FLTNESS ON OFF amp 5 try Keys gt STEP SIZ Number Pad Keys Unit Keys RF ON OFF OS ENTRY OFF EAK en 10 4 10 6 10 7 11 4 11 6 11 8 11 9 11 10 11 12 12 4 12 7 12 10 13 3 13 5 13 7 13 10 14 3 14 4 14 5 14 6 14 7 14 8 14 9 14 10 Contents 3 15 Special Functions 1 CWCFAUTO 2w CW PEAKNG 4 note gl PP RB BE ee a
38. error was detected in the header This error message should be used when the device cannot detect the more specific errors described for errors 111 through 119 Header separator error A character which is not a legal header separator was encountered while parsing the header for example no white space followed the header thus GMC MACRO is an error Program mnemonic too long The header contains more that twelve characters See IEEE 488 2 7 6 1 4 1 Undefined header The header is syntactically correct but it is undefined for this specific device for example X YZ is not defined for any device Header suffix out of range The value of a numeric suffix attached to a program mnemonic makes the header invalid Numeric data error This error as well as errors 121 through 129 are generated when parsing a data element which appears to be numeric including the nondecimal numeric types This particular error message should be used if the device cannot detect a more specific error Invalid character in number An invalid character for the data type being parsed was encountered for example an alpha in a decimal numeric or a 9 in octal data Error Messages SCPI Error Messages 123 124 128 130 131 134 138 140 141 Exponent too large The magnitude of the exponent was larger than 32000 See IEEE 488 2 7 7 2 4 1
39. iA 3 SWPTIME AUTO ga eh a wee a Pa 4 STEP SWPTIME 4 so sce 3 ae amp 8 5 SWPTIME LLIM asseu ie a ee 6 ATT COUPLING oaaae aa 7 ATT SETTING 3 625404 2 4 8 ROSC AUTOS ooun a on 9 ROSC SOURCE 10 V GHz SCALE 11h NGR OFFESE T e ene a s Ea a a 12 PWR METER TY oaoa 13 PWR METER AD o oeoa 14 FM SENSITIVITY ooa 1h A LANGUAG E ocd a E ee bd 16 FW REVISION ife SBCURIEY Soig eee 9 4 eae de Re pei 18 DP DEFIN lt acy 2 40 4 od a ea a ea 19 CONTROL MODE e004 21 FULL SELFTST ok 4 oe muvee Woe 16 Error Messages The Error Event Queue 0 2 Error numbers 2 2084 Error Messages List 1 1 6 ee ee ee ee ee SCPI Error Messages 1 1 ee ee ee ee Command Error 4 00 a 9 ode of Mise aS amp Execution Error 2 2 ee ee ee Device specific Error arp da Sa A SUS A 8 Query Error ih 3 ge eae Rae E ie gas E Instrument Specific Error Messages 2 Block Transfer Errors 1 ee eee Bus Control Errors 4p 7 oe amp low Ge Se Bae eS Parsing and Compatibility Errors Diagnostics and Self test Errors 1 1 2 Internal Hardware Errors Hardware Configuration Errors Calibration Routine Errors 4 Loops Unlocked Errors 44 Miscellaneous Hardware Dependent Errors Contents 4 15 6 15 7 15 8 15 9 15 10 15 11 15 12 1
40. if desired When this key is pressed the current AM mode is displayed in the MARKER SWEEP STATUS display The mode can be changed to the next choice by pressing the AM move J key again or by pressing the J keys The AM mode choices are AM Off In this mode external AM modulation is disabled The displayed message is AN Of f External AM In this mode external AM modulation is enabled The EXT MOD annunciator is turned on The displayed message is AMNFExternal Associated SCPI Commands AM STATe ON Turns extemal AM modulation on AM STATe OFF Turns external AM modulation off When this function is selected by pressing_ SHIFT am move L the pulse width becomes the active parameter This parameter applies to the internal pulse mode Its value is shown in the MARKER SWEEP STATUS display in the format Midth lt digits gt lt umits gt Units can be either ws or ms The range of accepted values is 1 pS to 65 53 ms Resolution is 1 ys If necessary the pulse period will be increased to be 1 ws greater than the entered width value In other words the period must always be gt width 1 xs 10 6 FM vone J Modulation Keys Pressing the fm move St key displays the current FM mode and allows it to be changed if desired When this key is pressed the current FM mode is displayed in the MARKER SWEEP STATUS area The mode can be changed to the next choice by pressing the key again or by pressing the f Q keys
41. is XX dEm Power is settable to 0 01 dB with 0 1 dB display resolution Associated SCP Commands POWer LEVel lt num gt DBM Sets the power eve to the desired value Associated 8350 Commands PL lt num gt suffix Sets the power w to the desired value Selecting this function by pressing_ SHIFT power tevet adjusts the POWER display to make it agree with the RF power at a remote location When this key is pressed power offset becomes the active parameter displayed in the MARKER SWEEP STATUS area If the power offset is not zero the POWER display units are changed to dE rather than dBm and the POWER display shows the power level at the remote site not the power level at the RF OUTPUT This function does not affect the actual RF output power only the display in accordance with the equation DisplayedPower ActualRF Output Power Offset As the offset value is changed both the POWER and the MARKER SWEEP STATUS displays are updated to the new values of power and offset respectively The display format is Furr Cf s 4H HdE 13 3 Power Keys POWER LEVEL Resolution is 0 1 dB The power offset function can be turned off by selecting OFFSET again or by setting the power offset to 0 0 dB Associated SCPI Commands POWer OFFSet lt num gt DB Sets the power offset to the desired value Power Keys POWER SWEEP M a POWER SWEEP Pressing the Power sweer key displays the power sweep va
42. key 13 3 power meter leveling 2 7 power meter address 15 18 power meter leveling 13 7 power meter selection 15 17 power offset 13 3 power requirements 17 17 power resolution specifications 17 8 power slope 13 3 13 6 specification 17 9 power sweep 13 3 Index 11 specification 17 9 key 13 5 power switch 7 27 preset conditions instrument 8 4 preset key 8 4 key 84 preset mode 8 5 programming compatibility 17 15 PULSE IN OUT connector 7 5 key 10 4 pulse mode key 10 4 pulse modulation 10 2 10 4 scalar mode 10 4 specifications 17 13 pulse modulation off 10 4 pulse period function 10 5 pulse width function 10 6 PWR METER AD 15 18 PWR METER TY 15 17 PWR SWP annunciator 7 21 Q query errors 16 21 R rack mounting options 17 20 ramp sweep mode specifications 17 5 range frequency specifications 17 4 R annunciator 7 22 rear panel HP IB lang address switch 7 23 rear panel features 7 2 30 rear panel language switch 7 23 rear panel RF output option 17 19 recalling instrument states 8 8 recall key 8 8 RECALL_ key 8 8 reference oscillator specifications 17 4 reference oscillator selection 15 13 regulatory information 18 2 9 residual FM specification 17 12 resolution power specifications 17 8 Index 12 restrictions HP IB 7 11 RF OFF annunciator 7 21 key 14 7 RF output specifications 17 7 RF output connections 7 15 RF OUTPUT connector 7 15 RF output connector o
43. move ff repeatedly until the MARKER SWEEP STATUS display shows AL Diode Note that the EXT ALC annunciator is lit 3 Enter the coupling factor by selecting EXT CAL and then entering the desired number 2 3 Externally Leveling the Sweeper leveling with detectorslcouplerslsplitters NOTE The coupling factor in dB is defined by the equation leveled power P lev detected power P det Refer to Figure 2 1 for locations of P lev and P det After the coupling factor has been entered the front panel knob may be used to fine tune the displayed power to equal the actual leveled output power P lev Figure 2 1 illustrates a typical setup for external leveling When externally leveled the power level feedback is taken from the external negative detector input rather than the internal detector This feedback voltage controls the ALC system to set the desired RF output Figure 2 2 shows the input power versus output voltage characteristics for typical HP diode detectors From the chart the leveled power at the diode detector input resulting from any external level voltage setting may be determined The ALC feedback voltage present at the output of the detector must be between 0 2 mV and 0 5 V For a typical HP diode detector this corresponds to a detector input of approximately 35 dBm to 5 dBm See Figure 2 2 2 4 DETECTOR OUTPUT VOLTAGE 100 10 s7 F P 10 6
44. part of a product family which includes the HP 83751B HP 83752A and HP 83752B Santa Rosa California 2 21 93 be Zo es f Location Date Dixon Browder QA M anager Safety and Regulatory Infor mation Regulations and licensing DECLARATION OF CONFORMITY according to ISO IEC Guide 22 and EN 45014 Manufacturer s Name Hewlett Packard Co Manufacturer s Address 1400 Fountaingrove Parkway Santa Rosa California 95403 U S A Declares that the product Product Name Synthesized Sweeper Model Numbers HP 837518 Product Options This declaration covers all options of the above products Zonforms to the following product specifications Safety CAN CSA 22 2 No 231 Series M89 EMC EN 55011 1991 CISPR 11 1990 Group 1 Class A EN 50082 1 1992 TEC 801 2 1991 4 kV CD 8 kV AD IEC 801 3 1984 3 V m 27 500 MHz TEC 801 4 1988 500 V signal 1000 V AC iupplementary Information The HP 83751B was qualified as part of a product family which ncludes the H P 83751A HP 83752A and HP 83752B Santa Rosa California 2 2 S IF A Location D a t e Dixon Browder QA M anager Safety and Regulatory Infor mation Regulations and licensing DECLARATION OF CONFORMITY according to ISO IEC Guide 22 and EN 45014 M anufacturer s Name Hewlett Packard Co M anufacturer s Address 1400 Fountaingrove Parkway Santa Rosa California 95403 U S A Declares that the product Product Name Synthesized Sweeper Model Numbers H
45. pulse at 1601 points evenly spaced across an analog sweep or at each point in stepped sweep mode When used with the HP 8757D scalar analyzers the number of pulses per sweep in analog sweep mode is determined by the number of HP 8757 trace points This rear panel female BNC connector supplies a voltage that is proportional to the RF output frequency which can be configured to any desired sensitivity and offset within a 12 V range The default setting is 0 5 V GHz The minimum load impedance is 2 KQ The typical accuracy is 0 1 10 mV Z AXIS BLANK MKRS Front Rear Panel Connectors This rear panel female BNC connector supplies a positive rectangular pulse approximately 5 V into 2 KQ during the retrace and band switch of the RF output when the instrument is sweeping This output also supplies a 5 V pulse when the RF output is coincident with a marker frequency 7 7 Front Rear Panel Connectors Multi pin Connectors AUXILIARY INTERFACE This connector provides special control signals used in master slave interface operation with another source and in other special purpose applications This connector is a 25 pin D subminiature receptacle located on the rear panel AUXILIARY INTERFACE 13 1 eeeeeseeeoeoese eeeeeeeeoeeod 25 14 SOURCE SYNCHRONIZATION CABLE HP P N 8375040059 pg414ab Figure 7 3 Auxiliary Interface Connector 7 8 Front Rear Panel Connectors Table 7 1 P
46. set one of the following events has occurred e A lt PROGRAM DATA gt element following a header was evaluated by the device as outside of its legal input range or is otherwise inconsistent with the device s capabilities e A valid program message could not be properly executed due to some device condition Execution errors shall be reported by the device after rounding and expression evaluation operations have taken place Rounding a numeric data element for example shall not be reported as an execution error Events that generate execution errors shall not generate Command Errors device specific errors or Query Errors see the other error definitions in this section 16 13 Error Messages SCPI Error Messages Error Number 200 201 202 210 211 212 213 Error Description description explanation examples Execution error This is the generic syntax error for devices that cannot detect more specific errors This code indicates only that an Execution Error as defined in IEEE 488 2 11 5 1 1 5 has occurred Invalid while in local Indicates that a command is not executable while the device is in local due to a hard local control See IEEE 488 2 5 6 1 5 for example a device with a rotary switch receives a message which would change the switches state but the device is in local so the message cannot be executed Settings lost due to rtl Indicates that a setting associate
47. specific Error An lt error event number gt in the range 399 300 or 1 32767 indicates that the instrument has detected an error which is not a command error a query error or an execution error some device operations did not properly complete possibly due to an abnormal hardware or firmware condition These codes are also used for self test response errors The occurrence of any error in this class should cause the device specific error bit bit 3 in the event status register IEEE 488 2 section 11 5 1 to be set The meaning of positive error codes is device dependent and may be enumerated or bit mapped the lt error message gt string for positive error codes is not defined by SCPI and available to the device designer Note that the string is not optional if the designer does not wish to implement a string for a particular error the null string should be sent for example 42 The occurrence of any error in this class should cause the device specific error bit bit 3 in the event status register IEEE 488 2 section 11 5 1 to be set Events that generate device specihc errors shall not generate command errors execution errors or query errors see the other error definitions in this section 16 19 Error Messages SCPI Error Messages Error Number 300 310 311 314 315 330 350 Error Description description explanation examples Device specific error This is the generic devic
48. sweep its value does not change when it is turned on even though it may not be observed on a network analyzer display If the user changes the value of such a marker using the front panel knob or the QD keys its value is 9 2 Marker Keys snapped to the start or stop frequency whichever is nearest of the sweep and is adjusted from there If a marker value is entered using the keypad its value will remain as desired as long as the value is within the range of the current sweep If the value entered falls outside of the range of the current sweep the marker s value will be snapped to the start or stop frequency whichever is nearest to the entered number A marker may be on in either Sweep mode or in CW mode but markers affect the output level Amplitude markers or the Z MOD output Intensity markers only when the instrument is in Sweep mode Markers do not produce these effects when the instrument is in CW mode The active marker is a marker that is turned on and whose frequency was most recently shown in the MARKER SWEEP STATUS display even though it may not be the current active parameter being controlled by the keyboard and front panel knob If a marker is the current active parameter it is the active marker as well 9 3 Marker Keys Pressing the key allows a marker MO M9 to be selected and or defined When this key is pressed the MARKER SWEEP STATUS display shows the status of the markers
49. that will appear in the left hand frequency display are SHIFT START CF CW MAN SWEEP EXT REF ALT STOP SPAN MULT and OFFSET The display annunciators that will appear in the right hand marker sweep status and power display are MSG MKRS EXTMOD INTMOD UNLOCK STEP UNCPLD EXT ALC PWR SWP SLOPE UNLEV and RF OFF Front Rear Panel Display The front panel LED annunciators R L T S MKR A M1 M2 SWP UNLOCKED FM and FLTNESS ON will be lit to show you that an associated condition exists An explanation of each annunciator follows Display Annunciators SHIFT This annunciator appears when SHIFT is pressed and goes off when any other key is pressed or when SHIFT is pressed again START This annunciator appears when START or STOP is pressed and goes off when CW CF or SPAN is pressed CF This annunciator appears when or is pressed and turns off when CW START or STOP is pressed cw This annunciator appears when is pressed and turns off when CF SPAN START or is pressed MAN This annunciator indicates that manual sweep mode has been selected SWEEP This annunciator indicates that the instrument is performing a sweep This annunciator appears only while the instrument actually sweeps not while it waits for a trigger signal even though it is in sweep mode In continuous sweep mode the annunciator will blink with slow sweeps but remain on with fast sweeps EXT REF This annunci
50. used with the HP 83751B and HP 83752B high power models No external amplifier is required to obtain maximum specified power The interface extender cable HP part number 5062 7202 allows the source module to be positioned in front of the sweeper SOURCE MODULE INTERFACE SYNTHESIZED w SWEEPER RF OUTPUT INTERFACE EXTENDER CABLE ADAPTER IF REQUIRED MM WAVE SOURCE MODULE RF IN LEVELED OUTPUT pg420ab Figure 2 4 Millimeter wave Source Module leveling 2 9 Externally leveling the Sweeper Figure 2 5 illustrates the setup that is used with the HP 83751A and HP 83752A standard power models An external amplifier is required to obtain maximum specified power SOURCE MODULE NSERFACE SYNTHESIZED w SWEEPER RF OUTPUT ADAPTER IF REQUIRED MICROWAVE INTERFA E AMPLIFIER CABLE RE OU W WAVE SOURCE MODULE LEVELED OUTPUT pg4210b Figure 2 5 Millimeter wave Source Module leveling Using a Microwave Amplifier Turn the sweeper line power off Set up the equipment as shown in Figure 2 4 or Figure 2 5 Turn the sweeper line power on and press PRESET When the key is pressed the sweeper configures itself for source module operation and all of the ALC data necessary to communicate properly with the sweeper is exchanged via the rear panel SOURCE MODULE INTERFACE Note that the EXT ALC annunciator is lit and that the POWER
51. 0 for 10 change CW Mode Resolution 1 Hz Accuracy same as timebase Switching time 70 ms max Specifications and Options Frequency Stepped Sweep Mode Resolution Settable 1 Hz Display 1 kHz Accuracy See timebase specifications Minimum step size Settable 1 Hz Display 1 kHz Number of points 2 to 1601 Switching time point 7 ms 8 ms GHz step Up to 50 ms switching time can occur when crossing the 2 GHz bandswitch point Dwell time point 1 ms to 50 s Ramp Analog Sweep Mode Resolution 1 kHz Accuracy 25 5 C for 100 ms sweeps the greater of 0 01 of span ftimebase or 75 kHz ftimebase at other sweep speeds 0 001 of span sweep time s ftimebase Sweep time 10 ms to 100 s 400 MHz ms max Bandswitch Points For spans gt 100 MHz Bandswitch points at 2 and 11 GHz For ramp sweeps gt 0 8 Ban amp witch points at 3 35 and 5 9 GHz octave Specifications and Options Frequency MHz ue O To lt 0 EPR T mal ae Aa i F TNA LJ D Q Sc D 2 mi lon v D u A O 2 4 6 8 10 12 14 16 18 20 Frequency GHz Figure 17 1 Typical Swept Frequency Accuracy 100 ms sweep ramp mode pg428ab RF Output With type N output connector Option LED performance is typical above 18 GHz Maximum Leveled Power 25 5 C HP 8375141 10dBm HP 83752A 10 dBm HP 83751B 17 dBm HP 83752B lt 2 GHz 16 dBm gt 2 GHz 17 dBm With Option 1 amp 1 step
52. 00 VA maximum standby 100 VA Optimum voltage range automatically selected If this instrument is to be energized via an external autotransformer for voltage reduction make sure that its common terminal is connected to a neutral earthed pole of the power supply Dimensions 133 mm high by 425 mm wide by 498 mm deep 5 25 in high by 16 75 in wide by 19 6 in deep excluding front and rear panel protrusions SIDE VIEW m 425 pg432ab Figure 17 4 Dimensions 17 17 Specifications and Options General Weight Net 16 kg 35 Ib Shipping 23 kg 49 Ib 17 18 Option 1E1 Add Output Step Attenuator Option 1E4 Rear Panel RF Output Option 1E5 Add High Stability Timebase Option 1ED Type N RF Output Connector Options There are several options available for the sweeper They are explained in the following sections Electrical Options There are Eve electrical options available for the sweeper These options are as follows If Option 1E1 is ordered an internal step attenuator is included before the RF OUTPUT connector The step attenuator has a range of 0 to 70 dB in 10 dB steps The correct amount of attenuation is selected automatically by the sweeper dependent on the output power level selected If this option is installed you can select whether or not the step attenuator will automatically switch Refer to the Special Functions chap
53. 05 1E2289 73 atrican Republic United Arab Republic rt unpolarizedin many nat ions 125V 8120 1348 Straight NEMA5 15P 203 80 Block mien States 8120 1 203 80 Black anada 253 me Japan 100 Vor 8120 1378 Straight NEMAS 15P 203 80 Jade Gray 200 V Braz il i Colombia Mexic 8120 4753 Straight 230 90 Jade Gray Philippines 8120 1521 90 203 80 Jade Gray Squdia Arabia 8120 4754 90 230 90 Jade Gray Taiwan 250V 8120 5182 Straight NEMA5 15P 200 78 Jade Gray Israel 8120 5181 90 200 78 Jade Gray x Part number for plug isindustry identifier for plug only Number shown for cable i HP Part Number for complete cable including plug E Earth Ground L Line N Neutral FORMAT 80 Figure 7 12 Power Cable and line Mains Plug Part Numbers 7 30 Instrument State Keys Instrument State Keys INSTRUMENT STATE PRESET MODE SHIFT PRESET eee eens 4 SAVE PRESE SPECIAL o ae SAVE RECALL ADDRESS an LOCAL pg42ab Figure 8 1 Instrument State Group Registers 1 9 can be used to store instrument states There is another register used to store the user defined Preset instrument state The current instrument state is also saved continually in another register All 11 registers are battery backed up and contain the factory defined preset values until overwritten by other data When power is turned on the instrument performs some self tes
54. 17
55. 5 18 15 14 15 15 15 16 15 17 15 18 15 19 15 20 15 21 15 22 15 26 15 27 15 28 17 Specifications and Options Specifications 4 2 a so a ee 8 ea ae ee a ES Frequency s s d ce ak eo A Gee es heme iara G4 Range beth dk hc sy cds Sot A owt Ge aeons Lee Timebase Stability ee Bae BO see Ge ee te ES CW Mode 4 8 an amp Se ee ie ee tee eee ITA Stepped Sweep Mode ye ora a E ote We oe TE es S bee ap ES Ramp Analog Sweep Mode 2 14 5 Bandswitch Points ae St ete lt o ee Se a oe KENO RE Output lt s oa iore esam a Se RLS BOE AS 17 7 Maximum Leveled Power 2545 C e 17 7 Minimum Settable Power gate 17 8 Resolution ndine ena e we Ee ee Hck eed ais 17 8 Accuracy and Flatness ai eee LES Power Sweep bar S why yw bee a wa ee Go 17 9 Power Slope Sra Ge as amp ve dG wat Gate Me oe Sur g External Leveling 2 e eee ewe 17 9 User Flatness Level a lt a ion wah aed 17 9 Source Match 6 4 4 4 amp ear eae gt ge aa a PLO Spectral Purity 1 eee ug Ao aly dk a PETA Harmonics at max leveled power 17 11 Subharmonics ee a e Ge we o SEG Non harmonic Spurious aa Ge ok ao LL Residual FM 0 05 to 15 kHz bandwidth Dear HG Iel Modulation s ece ioi w e a e a a a a a 17 13 Pulse e ara a ie e op Stel Be A Ra E a 17 13 AM sa aotar T ya lt A ae a a dP Be e Feb st eet 17 13 OME aes aS Sth Oe Aa iee
56. 9 ROSC This function allows you to set the frequency standard to be used by the SOURCE sweeper When this function is used to select the frequency standard the automatic reference selection switch will be turned off The three frequency standard selections are INT Sets the sweeper to use its internal frequency standard as its reference EXT Sets the sweeper to accept an external frequency standard as its reference NONE Sets the sweeper to free run operation where no frequency standard is used NOTE Selecting INT on an instrument without Option 1E5 or EXT without an external reference connected can cause poor frequency accuracy and synthesizer unlocks Associated SCPI Commands ROSCillator SOURce INTernal ROSCillator SOURce EXTernal ROSCillator SOURce NONE 15 14 Sets the requency standard to internal Sets the frequency standard to external Sets the requency standard to none Special Functions 10 V GHz SCALE 10 V GHz This function allows you to scale the V GHz voltage at the rear panel SCALE VOLTS GHZ OUTPUT connector to the desired value The acceptable range of values for this function is 10 00 V GHz to 10 00 V GHz with 0 50 V GHz being the factory preset value The rear panel output is limited to a 12 V range Associated SCPI Commands CORRection VOLTS SCALe lt num gt Sets the GH7z scale to the desired value 15 15 Special Functions 11 V GHz This function allo
57. A certification with a data package 17 22 18 Safety and Regulatory Information Safety and Regulatory Information This chapter includes required regulatory and safety information that is not included elsewhere in the manual The Erst part of this chapter includes regulations and licensing information including the Manufacturer s Declaration of Conformity The second part of the chapter contains required safety information that is not included elsewhere in the manual 18 2 Regulations and Licensing Notice for Germany Noise Declaration LpA lt 70 dB am Arbeitsplatz operator position normaler Betrieb normal position nach DIN 45635 T 19 per ISO 7779 Safety and Regulatory Infor mation Regulations and licensing DECLARATION OF CONFORMITY according to ISO IEC Guide 22 and EN 45014 M anufacturer s Name Hewlett Packard Co M anufacturer s Address 1400 Fountaingrove Parkway Santa Rosa California 95403 U S A Declares that the product Product Name Synthesized Sweeper Model Numbers HP 83751A Product Options This declaration covers ail options of the above products Conforms to the following product specifications Safety CAN CSA 22 2 No 231 Series M89 EMC EN 55011 1991 CISPR 11 1990 Group 1 Class A EN 50082 1 1992 IEC 801 2 1991 4 kV CD 8 kV AD IEC 801 3 1984 3 V m 27 500 MHz IEC 801 4 1988 500 V signal 1000 V AC Supplementary Information The HP 83751A was qualified as
58. ABle SAVE Enables the SAVE key SYSTem KEY DISaBle SAVE Disables the ISAVE key 15 24 Special Functions 17 SECURITY 404 BLANK This function allows you to turn the display off DISPLY When you press SPECIAL Hz s enter the following message is displayed i sp lay i OH The Gf keys or the front panel knob let you toggle from a normal display to a blanked display When you blank the display the message DISPLAY BLAHEED appears in the frequency display To turn the display mode back on press PRESET Associated SCPI Commands DISPlay STATe OFF Turns the display off DISPlay STATe ON Turns the display on SYSTem PRESet EXECute Presets the sweeper and turns the display on 405 SYSTEM This function allows you to lock the front panel keyboard KLOCK When you press SPECIAL Hz s enter_ the following message is displayed KeyErd Lock 0FF The W keys or the front panel knob let you toggle from a normal keyboard to a locked keyboard When you lock the keyboard it is locked against any entry except for preset and cycling power If you press any other key nothing happens except the message Press PRESET taproceed is displayed To unlock the keyboard either press or cycle power Associated SCP Commands SYSTem SECurity KLOCk ON Locks the front panel keyboard SYSTem SECurity KLOCk OFF Unlocks the front panel keyboard SYSTem PRESet EXECute Unlocks the front panel and presets the sweeper
59. ICES i POWER METER IFLATNESS CORRECTED yOUTPUT TEST PORT i DEVICES POWER SENSOR TEST pg422ab Figure 5 1 Creating a User Flatness Array 5 3 Creating User Flatness Arrays Creating a user flatness array To set up the sweeper 5 4 Connect the equipment as shown in Figure 5 1 Do not connect the power sensor to the system yet Press PRESET on the sweeper If a frequency range other than the full range of the instrument is desired use the START and STOP keys to input the desired frequency range If external cables and or devices are used between the sweeper leveling point the RF OUTPUT if internally leveled or the coupler splitter output if externally leveled and the remote test port the nominal average loss of these components should be entered as an offset To enter the power offset press OFFSET in the POWER key group and then enter the nominal loss from the leveling point of the sweeper to the test port For example if there is a 6 dB loss from the leveling point to the remote test port enter a power offset of 6 dB Set the power level to the level desired at the test port by pressing Power LeveL and entering the desired number Select SPECIAL 12 Hz s ENTER Use the keys to select the type of power meter you will be using 437B for this example Select SHIFT SPECIAL 13 Hz s ENTER Enter the HP IB address of the power meter you will be using for t
60. Internal The ALC circuitry is turned off This will cause the UNLEV annunciator to light Provides uncalibrated level control by allowing direct control of the internal linear modulators and step attenuator The modulator is set by using the front panel knob or the Q key A 1 dB change in modulator setting corresponds to an approximately 1 dB change in output power The displayed message is ALC Un leveled If your sweeper has option 1E1 add step attenuator the ALC and the attenuator are uncoupled when your sweeper is in the following ALC modes This will be indicated to you by the front panel display annunciator UNCPLD External Diode The ALC point is fed from an external diode detector This Leveling Power Meter Leveling mode requires an external feedback connection from a negative output diode detector at the leveling point to the instrument s ALC IN BNC connector on the front panel To obtain calibrated leveled power the EXT CAL adjustment turned on The displayed message is ALC D i ode The ALC signal is coming from an external power meter This mode requires an external feedback connection from the recorder output of a power meter at the leveling point to the instrument s ALC IN BNC connector on the 13 7 Power Keys ALC MODE ff front panel To obtain calibrated leveled power the EXT CAL adjustment should be made See EXT CAL The EXT ALC LED is turned on The displayed message is ALC Pow
61. L Hz s ENTER If the display does not read Cnt r lMode MASTER then press the key once to set the control mode to master 3 Set the desired frequencies by using the keys the keys or the G key NOTE It is recommended that the master and slave sweepers frequencies not differ more than 5 GHz at any point in the sweep If this requirement is not met it is possible for unlocks to occur If frequency offsets greater than 5 GHz are required it may be necessary to reduce the sweep speeds to eliminate unlocks 4 Set the desired power level using the_ power tevet key For swept measurements 5 Set the desired sweep time using the TIME key The recommended minimum sweep time for master slave mode is 100 ms NOTE The master and slave sweepers must have identical sweep times Therefore the value entered here must also be entered into the slave sweeper 6 4 Operating a Master Slave Setup To set up the master sweeper For stepped measurements 6 Set the sweep mode to stepped by pressing SHIFT SWEEP MODE and then pressing the fj key until the display reads Sweep Step Cont 7 Set the number of points by pressing POINTS and entering the desired number of points NOTE The master and slave sweepers must have identical sweep mode number of points and sweep time settings Therefore the values entered here must also be entered into the slave sweeper 6 5 To set up the slave sweeper
62. NLG GND RET 14 4 to 15 45 v 14 4v to 15 45v 7 75v to 8 45v 4 75v to 5 40v Digital ground 0 5 V GHz return Analog ground return Front Rear Panel Connectors RF Output Connector The standard front panel RF OUTPUT connector is a precision 3 5 mm male connector When Option 1ED is installed this front panel connector is a ruggedized Type N connector The nominal source impedance is 50 Q When making connections to this connector carefully align the center conductor elements then rotate the knurled barrel while mating components remain still Tighten the barrel until firm contact is made Take care when working with this connector If the connector is mechanically degraded in any way high frequency losses can occur Refer to application note 326 Coaxial Systems Principles of Microwave Connector Care HP part number 5954 1566 for more information Display The sweeper front panel display contains two areas Frequency and Marker Sweep Status and Power for displaying the current operating parameters of the sweeper Front panel annunciators show the status of several of the sweeper functions and settings MARKER SWEEP STATUS FREQUENCY DISPLAY DISPLAY POWER DISPLAY 10 COOOOMHz 20 00000GHz m 1 0000GHz m DUOL COCO CVO MOCO CIOLO j OYOYO OOO gogun OJ JOO Oyo Oo COO UOC I OO O pg410ab Figure 7 6 Sweep
63. P 83752A Product Options This declaration covers all options of the above products Conforms to the following product specifications Safety CAN CSA 22 2 No 231 Series M89 EMC EN 55011 1991 CISPR 11 1990 Croup 1 Class A EN 50082 1 1992 IEC 801 2 1991 4 kV CD 8 kV AD IEC 801 3 1984 3 V m 27 500 MHz IEC 801 4 1988 500 V signal 1000 V AC Supplementary Information The HP 83752A was qualified as part of a product family which includes the HP 83751A HP 83751B and HP 83752B Santa Rosa California Z 2Y GF ie Location Date Dixon Browder QA Manager Safety and Regulatory Infor mation Regulations and licensing DECLARATION OF CONFORMITY according to ISO IEC Guide 22 and EN 45014 M anufacturer s Name Hewlett Packard Co M anufacturer s Address 1400 Fountaingrove Parkway Santa Rosa California 95403 U S A Declares that the product froduct Name Synthesized Sweeper Model Numbers HP 837528 Product Options This declaration covers all options of the above products Conforms to the following product specifications Safety CAN CSA 22 2 No 231 Series M89 EMC EN 55011 1991 CISPR 11 1990 Group 1 Class A EN 50082 1 1992 IEC 801 2 1991 4 kV CD 8 kV AD TEC 801 3 1984 3 V m 27 500 MHz IEC 801 4 1988 500 V signal 1000 V AC Supplementary Information The HP 83752B was qualified as part of a product family which includes the HP 83751A HP 83751B and HP 83752A Santa Rosa California 2 2 KF
64. TE If the value of MI is greater than the value of M2 their values will be interchanged when they are put into the start and stop frequencies In this mode the FREQUENCY display shows MI as the start frequency and M2 as the stop frequency The START STOP CF and SPAN values are coupled with markers MI and M2 That is any change in the values of START and STOP frequency will directly alter the values of markers M1 and M2 and vice versa If the frequency of marker MI or M2 is the active parameter displayed in the MARKER SWEEP STATUS area and if its value is changed or if new START STOP CF or SPAN frequencies are entered then both the FREQUENCY and the MARKER SWEEP STATUS displays are updated simultaneously to the new value When marker sweep is toggled off by pressing again the START STOP CF and SPAN values will revert to what they had been before marker sweep was turned on The M1 M2 LED annunciator will be turned off but MI and M2 will remain on Associated SCPI Commands SWEep MARKer STATe ON Tums marker sweep on SWEep MARKer STATe OFF Turns marker sweep off 11 12 Frequency Keys Associated 8350 Commands MP1 Turns marker sweep an MPO Tums marker sweep off MI START This function copies the values of the markers MI and M2 to the START ose and STOP frequencies respectively The new frequencies are then shown in M2 STOP the FREQUENCY displays Markers M1 and M2 are turned on if they were previously
65. UTPUT VOLTS GHz OUTPUT 7 6 This rear panel female BNC connector causes a sweep to be stopped when this input is pulled low Retrace does not occur and the sweep resumes when this input is pulled high The open circuit voltage is TTL high and is internally pulled low when the instrument stops its sweep The damage level is gt 10 V or lt 4 V These front and rear panel female BNC connectors provide a voltage range of 0 to 10 V When the instrument is sweeping the SWEEP OUT ranges from 0 V at the beginning of the sweep and 10 V at the end of the sweep regardless of the sweep width In CW mode the SWEEP OUT ranges from 0 V at the sweeper minimum frequency to 10 V at the specified maximum frequency with a proportional voltage for frequencies between the specified minimum and maximum When the sweeper is in manual sweep operation the SWEEP OUT voltage is a percentage of the span The nominal output impedance is 100 Q The typical accuracy is 0 05 5 mV into a high impedance load When used with the HP 8757D scalar analyzer in ramp sweep mode the rear panel output is a series of O to 10 V pulses similar to the Trigger Output This rear panel female BNC input is activated on a TTL rising edge It is used to externally initiate an analog sweep or to advance to the next point in stepped sweep mode The damage level is gt 10 V or lt 4 V This rear panel female BNC connector outputs a 1 ys wide negative going TTL
66. User s Guide HP 83751A B and HP 83752A B Synthesized Sweepers HP part number 83750 90004 Printed in USA March 1996 Serial Numbers This manual applies directly to instruments with serial prefix 3610A and below This manual also applies to Ermware revision 2 0 and above For Ermware revisions below 2 0 contact your nearest Hewlett Packard service center for a Ermware upgrade Notice The information contained in this document is subject to change without notice Hewlett Packard makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and Etness for a particular purpose Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material Copyright Hewlett Packard Company 1993 1996 All Rights Reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws 1400 Fountaingrove Parkway Santa Rosa CA 95403 USA The HP 83751A B and HP 83752A B Synthesized Sweepers The HP 83751A B and HP 83752A B synthesized sweepers referred to as sweepers throughout this manual provide continuous analog or digital stepped sweep capability The HP 83751A B provides a frequency range of 2 to 20 GHz while the HP 83752A B provides a frequency range of 10 MHz to 20 GHz The
67. YST KEY 62 which simulates counterclockwise knob rotation Line POWER Switch e INSTRUMENT STATE B al PRESET MODE smer reser Il ak ja SAVE PRESET SPECIAL z SAVE recat E r ADORESS ALT n 3y tocar MSG HP i8 STATUS lo OR OL i POWER OT OS V 3 ON STANDBY LINE POWER SWITCH pg49ab Figure 7 1 1 The Sweeper line POWER Switch The line POWER switch turns power to the sweeper to either on or standby The sweeper line POWER switch is located at the bottom left corner of the front panel Pressing the switch so that the button locks in the in position turns the sweeper on and pressing the switch again so that it is in the out position turns it to standby When set to standby most of the sweeper circuitry is powered off however power to the internal timebase Option 1E5 is not disconnected When the sweeper is on the green LED indicator will be illuminated When the sweeper is in standby the amber LED indicator will be illuminated 7 27 Front Rear Panel line POWER Switch WARNING Before turning the sweeper on make sure that it is grounded through the protective conductor of the power cable to a mains power receptacle provided with protective earth contact Any interruption of the protective grounding conductor inside or outside of the sweeper or disconnection of the protective earth term
68. a character which is invalid for that type for example a header containing an ampersand SETUP amp This error might be used in place of errors 114 121 141 and perhaps some others Syntax error An unrecognized command or data type was encountered for example a string was received when the device does not accept strings Invalid separator The parser was expecting a separator and encountered an illegal character for example the semicolon was omitted after a program message unit EMC 1 CHI VoLTS 5 Data type error The parser recognized a data element different than one allowed for example numeric or string data was expected but block data was encountered GET not allowed A Group Execute Trigger was received within a program message See IEEE 488 2 7 7 Correct the HP IB controller program so that the group execute trigger does not occur within a line of HP IB program code Parameter not allowed More parameters were received than expected for the header for example the EMC common command only accepts one parameter so receiving EMC 0 1 is not allowed 16 8 109 110 111 112 113 114 120 121 Error Messages SCPI Error Messages Missing parameter Fewer parameters were received than required for the header for example the EMC common command requires one parameter so receiving EMC is not allowed Command header error An
69. a directional coupler is used enter the coupling factor of the coupler 2 7 Externally leveling the Sweeper leveling with a power meter NOTE The coupling factor is defined by the equation leveled power P lev detected power P det Refer to Figure 2 1 for locations of P lev and P det After the coupling factor has been entered the front panel knob may be used to fine tune the displayed power to equal the actual leveled output power P lev 4 If the power meter and the sweeper power setting don t agree set the coupling factor step size to 10 dB and then use the f keys to adjust the coupling factor up or down until the power meter and the sweeper power setting agree 5 Select the sweep tune by pressing and then entering the desired sweep rate NOTE Due to the settling time required by power meters it is recommended to use a 40 second sweep rate Unlike detector leveling power meter leveling provides calibrated power out of the leveled RF port See also To obtain flatness corrected power refer to Creating User Flatness Correction Arrays later in this manual 2 8 Leveling with millimeter wave source modules option 1EE only Millimeter wave source module leveling is similar to power meter leveling except that a slow sweep time is not required Figure 2 4 and Figure 2 5 illustrate the setups for leveling with a mm wave source module Figure 2 4 illustrates the setup that is
70. a minimum value 3 SWPTIME y p AUTO for a chosen span and meet all specifications The sweep tune is limited by a 400 MHz ms sweep rate When sweep time auto is on the fastest sweep tune allowed for the frequency span swept is automatically selected When sweep tune auto is off changing frequency span does not change the sweep time Associated SCPI Commands SWEep TIME AUTO ON Turns on sweep time Auto SWEep TIME AUTO OFF Turns off sweep time Auto 15 8 4 STEP SWPTIME Special Functions 4 STEP SWPTIME This function is used to set the sweep time while in stepped sweep mode The stepped sweep time can only be changed while the sweeper is in stepped sweep mode The front panel key which is normally used to set sweep time while in analog sweep mode will display the dwell time if pressed while in stepped sweep mode The stepped sweep time is coupled with Dwell Time and Points by the equation Step sweep time Dwell Time Points Note that the equation does not include frequency switching time As stepped sweep time is adjusted dwell time will be adjusted proportionately At factory preset the dwell time is set to its minimum setting of 1 ms Therefore the stepped sweep time cannot be decreased from its factory preset value unless the number of points is decreased NOTE If stepped sweep time is adjusted to an invalid sweep time the stepped sweep time value will snap to the nearest legal value a
71. ac power cord supplied with this instrument Failure to ensure adequate earth grounding by using this cord may cause instrument damage This instrument has automatic selection input Be sure the supply voltage is within the specified range xiii How to Use This Guide This guide uses the following conventions This represents a key physically located on the instrument SHIFT FUNCTION This represents a shift function blue text above front panel keys Display Text in this font represents FREQUENCY MARKER SWEEP STATUS and POWER displays ANNUNCIATOR Text in this font represents the annunciators that are displayed in the lower portion of the sweeper display Contents 1 Performing the Operator s Check To run the full self test Boal ah 1 3 To run peak power tracking 1 5 To check the maximum leveled power 1 6 To check the output power 1 8 If you have a problem 1 10 If the self test fails 3 5 0d 1 10 If the maximum leveled ower check fails a 1 11 2 Externally Leveling the Sweeper Leveling with detectors couplers splitters os 2 3 External leveling with the option 1E1 step attenuator 2 6 See also Sen o dy O aI ae oe 2 6 Leveling with a power meter Sond ie ZaS Sich aA That hee 2 7 See also be he inh 2 8 Leveling with millimeter wave source modules option 1EE ony nos irra ie Btn aan ae eee e 2 9 See also Se a eer a er at aa eee 3 Generating a Stepped Sweep
72. ailed 311 Memory Error RECALL Was Aborted Presetting to Fix Instrument State Used 603 311 Memory Error SAVE RECALL Registers Corrupted Registers Erased 604 311 Memory Error No Data In SAVE RECALL Registers RECALL Ignored 605 606 607 608 Error Messages SCPI Error Messages Warning Learn String FW Revision Not Matched 606 The learn string that was received does not match the current firmware revision It was rejected and not used 200 Execution error Execution Not Allowed Currently In Restricted Mode 607 The instrument is in a restricted mode due to either the operation of self test or current operation of a calibration Running of most commands is not allowed For best results a device clear followed by a rst command should be sent 200 Execution error Execution Not Allowed Currently In Network Analyzer mode 608 Frequency zero can only be executed when the instrument is in stand alone mode When the instrument is connected to an HP 8757 or when the instrument is speaking 8350 compatibility language frequency zero cannot be implemented If the user attempts to implement frequency zero in these modes an error message will be generated Calibration Routine Errors 701 702 703 300 Device specific error Peaking Failed 701 For unspecified reasons the CW peaking algorithms failed 300 Device specific error Peaking Never Leveled 702
73. al latch on the A5 timer board to verify the integrity of the instruments data and address bus This test has failed Refer to service documentation for troubleshooting information 330 Self test failed Static Ram Overflow by Firmware 408 Indicates that after the instrument is up and running a series of power on self tests have been run and Static Ram was found to be overflowed by the program running in firmware 330 Self test failed Static Ram Not Recovered Error 409 Indicates that after the instrument is up and running a series of power on self tests have been run and error correction code checking has found that contents of Static Ram SRAM has been corrupted during power up SRAM Calibration data and SRAM Instrument State have been cleared and are lost The rear panel dip switch 7 can may be set to deliberately cause this condition 330 Self test failed Power Supply Voltage Error 410 Indicates that after the instrument is up and running a series of power on self tests have been run and Power Supply Voltage errors were found 330 Self test failed CPU Self Test Error On Power Up 411 Indicates that after the instrument is up and running a series of power on self tests have been run and the CPU board tests failed 330 Self test failed ROM Checksum Error LOW BYTE 412 Indicates that after the instrument is up and running a series of power on self tests have been run and error corr
74. art Stop frequency range or Fu 11 Barid correction points will be linearly spaced over the full frequency range of the instrument Use the QJ keys to make your selection then press Hz s ENTER 5 8 Creating User Flatness Arrays b Select the number of correction points using the keypad for your entry Valid entries range from 2 to 801 then press Hz s ENTER c The MARKER SWEEP STATUS display should now read Connect 437EP M ENTER 2 Press Hz s ENTER to start the calibration The display will show each correction point s frequency and power as it is measured 3 When the calibration is finished the flatness correction is automatically turned on and the FLTNESS ON LED annunciator is lit on the front panel of the sweeper Power correction will be linearly interpolated between the measured correction points 4 Save the calibration by pressing SAVE on the sweeper Attention If the calibration is not saved in an instrument register and the sweeper or analyzer is preset a register is recalled or the power offset is changed the calibration will be lost Reactivating the SYSINTF on the analyzer will also cause a preset and loss of the calibration Be sure to save the calibration as described in the previous step before continuing To reactivate the HP 8757 system interface 1 Press the softkey SYSINTF ON OFF on the analyzer and the sweeper will preset 2 Press to pull up the calibration 3 Dev
75. as executed See IEEE 488 2 6 3 7 5 16 22 Error Messages SCPI Error Messages Instrument Specific Error Messages Block Transfer Errors 101 102 103 161 Invalid block data sToo Many Calibration Array Elements Sent 101 For a specific calibration array the HP IB controller has sent more array elements than needed by the array definition 161 Invalid block data Incorrect Number Of Calibration Array Elements 102 For a specific calibration array the HP IB controller has sent an incorrect number of array elements than needed by the array definition 161 Invalid block data Bad Learn String Checksum 103 Indicates that an incoming learn string was rejected because the newly calculated checksum did not match the original checksum stored with the learn string 16 23 Error Messages SCPI Error Messages Bus Control Errors 201 204 205 206 207 208 310 System error Another Controller Is On The HP IB Bus 201 Indicates that during a Flatness Calibration the instrument was trying to establish the control of the Power Meter but Egured out another controller is on the HP IB bus Flatness Calibration is aborted 310 System error Command Send Error No HP IB Devices Found 204 Indicates that during a Flatness Calibration the instrument was sending a command to an HP IB device but could not End it Flatness Calibration is aborted 310
76. atibility with ATE systems which include an HP 8350B sweeper Master Slave two tone Measurements Two HP 83750 series sweepers can synchronously track each other over swept or stepped frequencies at any fixed or swept frequency offset with limitations Refer to Chapter 6 Operating a Master Slave Setup for information on instrument setups and operation 17 15 Specifications and Options General Environmental Operating temperature range 0 to 55 C Type tested to the environmental requirements of MIL T 28800E Class EMC Conducted and radiated interference comply with EN55011 class A CISPR 11 Class A EN50082 1 1991 TEC 801 2 19914 kV CD 8 kV AD IED 801 3 1984 3 V m 26 500 MHz TEC 801 4 1988 500 V Warmup Time Operation Requires 30 minutes warm up time from cold start at 0 to 55 C Internal temperature equilibrium reached after 2 hour warm up at stable ambient temperatures Frequency Reference Option 1E5 only Reference timebase is kept at operating temperature with the instrument connected to AC power Attention Instruments disconnected from AC power for more than 24 hours require up to 30 days to achieve timebase aging specification Instruments disconnected from AC power less than 24 hours require 24 hours to achieve timebase aging specification 17 16 Specifications and Options General Power Requirements 90 132 VAC 47 66 Hz 103 5 126 5 VAC 380 420 Hz or 198 250 VAC 47 66 Hz 4
77. ator indicates that an external frequency reference is in use ALT This annunciator indicates that the alternate sweep mode is active STOP This annunciator appears when START or STOP is pressed and turns off when CW CF or SPAN is pressed SPAN This annunciator appears when CF or is pressed and turns off when Cw START or STOP is pressed MULT This annunciator indicates that the displayed frequency is a multiple of the actual RF output frequency 7 20 OFFSET MSG MKRS EXTMOD INTMOD UNLOCK STEP UNCPLD EXT ALC PWR SWP SLOPE UNLEV RF OFF Front Rear Panel Display This annunciator indicates that the displayed frequency is offset from the actual RF output frequency This annunciator indicates that the sweeper has a new message that has not been displayed such as an error message or instrument failure message Messages are viewed by pressing the front panel key This annunciator appears when any of the markers 0 to 9 are on This annunciator appears under any of the following conditions e AM Mode External e FM Mode AC Locked or DC Unlocked e Pulse Mode External This annunciator appears if Pulse Mode is set to Internal Scalar or 1 kHz square wave This annunciator appears when any of the internal synthesizer loops are unlocked This annunciator indicates that the Sweep Mode is set to Stepped Sweep This annunciator indicates that automatic coupling betw
78. attenuator reduce by 1 dB Power typically degrades lt 2 5 dB over 0 to 55 C 25 E ae ER BN 22C LON TTT oO HY ee i A aA sa j 16 RA r a Ce ay ie ng ee T Frequency GHz pg430ab Figure 17 2 Typical Maximum Available Power 17 7 Specifications and Options RF Output Minimum Settable Power HP 83751A and HP 83752A 15 dBm With Option 1E1 85 dBm HP 83751B and HP 83752B 10 dBm With Option 1E1 80 dBm Resolution Settable 0 01 dB Display 0 1 dB Accuracy and Flatness Specifications apply for coupled attenuator mode Option 1E1 and ALC level gt 10 dBm HP 83751A and HP 83752A gt 5 dBm HP 83752A and HP 83752B HP 83751A and HP 83752A gt 10 dBm 1 0 dB 0 7 dB HP 83751A and HP 83752A with Option 1E1 gt 80 dBm 1 5 dB 1 2 dB gt HP 83751B and HP 83752B 1 5 dB 1 3 dB HP 837518 and HP 83752B with Option 1E1 gt 75 dBm 1 5 dB 1 3 dB 25 5 C Below 50 MHz flatness is specified over 25 5 C range Specifications and Options RF Output Power Sweep 25 dB sweep maximum Usable from minimum to maximum leveled power within any one attenuator setting Settable to 35 dBAweep Power Slope 0 to 2 dB GHz up to power sweep limit External Leveling External detector range 0 2 mV to 0 5 V bandwidth sweep speed and modulation mode dependent 10 or 100 kHz nominal External power meter 1 Hz bandwidt
79. ce Module Connector The codes indicated in Figure 7 5 translate as follows MOD DO MOD D1 MOD D2 MOD D3 MOD CO MOD Cl Source module data line zero Signals MOD DO through MOD D3 are the millimeter source module data bus lines bidirectional Data line one Data line two Data line three Source module control line zero Signals MOD CO and MOD Cl are the control lines for the read write to and from the millimeter source module Control line one 7 13 Front Rear Panel Connectors MOD SENSE L MOD RF OFF EXT LVL RET EXT LVL 0 5V GHz 15V 15V 8V 5V NOTE Source module sense A 1 mA current is injected on this line by the millimeter source module to indicate its presence This signal always equals 0 V Low RF off Source module RF is turned off Source module external leveling return Source module external leveling input from the millimeter source module Internal 0 5V GHz to the millimeter source module Power supply Range is 14 25 to 15 45 V See note below Power supply Range is 14 25 to 15 45 V See note below Power supply Range is 7 50 to 8 45 V See note below Power supply Range is 4 75 to 5 40 V See note below The values for the four power supplies above are valid when a millimeter head is connected With no load on the connector the values would be 15 v supply 15 v supply 8 v supply 5 v supply DIG GND 5 V GHz RTN A
80. cial Functions 17 SECURITY 402 CLRMEM This function lets you set the number of times that the RAMs will be cleared COUNT and initialized to zeros with the clear memory function When you press SHIFT SPECIAL Hz s ENTER_ the following message is displayed ClrMem Count 1 The keys or the front panel knob let you change the count Or use the numeric keypad to enter the new value Numbers between and including 1 through 20 are accepted The clear memory count is reset to a value of one at preset or when power is cycled on the instrument Associated SCPI Commands SYSTem SECurity COUNt lt num gt MIN MAX Sets the numberoftimes that RAMs are initialized to ros 403 SAVE This function allows you to enable or disable the function When the LOCK function is enabled you can save instrument states into the nine available registers using the key When the function is disabled you cannot save instrument states and the message SAVE LOCKED will appear in the MARKER SWEEP STATUS display if you attempt to do so When your instrument was shipped the save function was enabled When you press SPECIAL Hz s enter the following message is displayed SAYEkey Enabled The f Q keys or the front panel knob let you toggle between enabled and disabled If you disable this function it will stay disabled through presets and power cycles until you enable it again using this special function Associated SCPI Commands SYSTem KEY EN
81. ctions menu with the f keys or the front panel knob until the desired function is displayed and then pressing Hz s ENTER Special Functions e OR by using the keypad to enter the number of the desired function and then pressing Hz S ENTER Once the Hz s ENTER key has been pressed the selected special function becomes the active parameter in the MARKER SWEEP STATUS display If the special function s selections consist of discrete states i e On Off or Int Ext None then the keys or the front panel knob must be used to select the desired state If the special function is a numerical value then the keypad may also be used to enter the value If the keypad is used to enter a value the value must be terminated with one of the units keys Pressing the key after a parameter has been viewed or changed returns you to the main menu and you can then scroll through the special functions or enter another special function number The special functions in this chapter are organized numerically See Table 15 1 for a numerical listing of the functions 15 3 Special Functions Table 15 1 Special Functions for the HP 83750 Series Sweepers Special Function Display Function Description After pressing Number Hz s ENTER CWCF AUTO CH CF Autos CW PEAKNG Peak ing SWPTIME AUTO on on StpSupT ime Numer ical 401 ms SWPTIME LLIM Numer ical 10 ms A11 COUPLINGT Atten Auto Ont ATT SETTING 0 dB 10 V GHz SCALE N
82. d of the sweep beyond the legal range of the start and stop frequencies then the center frequency is adjusted so that the end of the sweep is a valid frequency while keeping the span the same The span frequency is always coupled to previously set start and stop frequencies by the equation SPAN STOP START Associated SCPI Commands FREQuency MODE SWEep Sets the instrument to sweep mode FREQuency SPAN lt num gt suffix Sets the requency span to the desired value Associated 8350 Commands DF lt num gt suffix Sets the frequency span to the desired value Frequency Keys Pressing the key sets the instrument to CW continuous wave mode and allows the CW frequency to be changed This key turns the sweep mode off and displays the CW frequency in the FREQUENCY display The right half of the FREQUENCY display is blanked The CW Annunciator is turned on The CW frequency becomes the active parameter If marker sweep mode is on it will be turned off CW CF The CW frequency can be set independently of Start Stop CF Span or can be Coupling coupled to them depending on whether CW CF Coupling is turned on or off CW CF coupling is turned off in the factory preset condition When coupling is turned on CW CF To turn on CW CF coupling Press key s Display reads GPECIAL Last special function accessed Hz s ENTER Cutt Aut o 0FF ED Cult Auto 0H Associated SCPI Commands FREQuency MODE CW FIXed Sets the inst
83. d with a hard local control See TEEE 488 2 5 6 15 was lost when the device changed to LOCS from REMS or to LWLS from RWLS Trigger error A trigger error occurred in the signal generator Trigger ignored Indicates that a GET TRG or triggering signal was received and recognized by the device but was ignored because of device timing considerations for example the device was not ready to respond Note a DTO device always ignores GET and treats TRG as a Command Error Arm ignored Indicates that an arming signal was received and recognized by the device but was ignored Init ignored Indicates that a request for a measurement initiation was ignored as another measurement was already in progress 16 14 214 215 220 221 222 223 224 225 Error Messages SCPI Error Messages Trigger deadlock Indicates that the trigger source for the initiation of a measurement is set to GET and subsequent measurement query is received The measurement cannot be started until a GET is received but the GET would cause an INTERRUPTED error Arm deadlock Indicates that the arm source for the initiation of a measurement is set to GET and subsequent measurement query is received The measurement cannot be started until a GET is received but the GET would cause an INTERRUPTED error Parameter error Indicates that a program data element related error occurred This e
84. described in Chapter 15 Special Functions Parameter ALC Mode Alternate Sweep AM Mode Center Frequency cw Dwell Coupling Dwell Time External Cal Coup Factor Flatness Cal Over Flatness On Off FM Mode requency Multiplier requency Offset 4P IB Address V1 M2Sweep Manual Sweep Mode Manual Sweep Start Freq Warker A Mode Varker A Ref Varker Frequency Varker Mode Varker Status Table 8 1 Factory Preset Conditions Condition Parameter Condition 401 16 GHz or 10 005 GHzt ter Frequency s 0 dB Start Stop Of Of 1 0 Hz y rear panel switch Of Of Ce Of 1 e Al ter Frequency ter Frequency Intensity off Points Power level Power Offset Power Sweep Preset Mode Pulse Mode Pulse Period Pulse Width RF On Off ingle Trigger ope pan ep Size Freq ep Size Power S S S Start Frequency S S S op Frequency Sweep Mode Sweep Time Swept CW Trigger Mode User Flatness 0 0 dBm 0 0 dB 0 0 dB Factory when shipped Mod Off 1 000 ms 100 s On Off 0 00 dB GHz 18 GHz or 19 99 GHz 2 GHz or 10 MHzt 100 MHz 1 dB 20 GHz Start Stop Analog 45 ms of 50 mst Off Continuous Off 8 4 Instrument State Keys PRESET Associated SCPI Commands SYSTem PRESet EXECute Returns the instrument to the preset state Associated 8350 Commands IP Returns the instrument to the preset state PRESET When this functi
85. e Z AXIS _BLANK MKRS __POS Z_BLANK B Sa Ois a ob bo o o GSo5o STOP SWEEP STOP SWEEP 8 poco Pease ss cease E On PSO OVERS HP TB SYSTEM INTERFACE U RF OUTPUT AJB R rae DETECTOR mo POWER goog00 SPLITTER POWER METER DIRECTIONAL BRIDGE POWER SENSOR TEST DUT DETECTOR PORT pg4230b Figure 5 2 Scalar Measurement System Setup 5 6 Creating User Flatness Arrays Creating a user flatness array for use in a scalar analysis measurement To set up the sweeper 1 Connect equipment as shown in Figure 5 2 Do not connect the power sensor to the system yet 2 Press PRESET on the scalar analyzer HP 8757 3 If a frequency range other than the full range of the instrument is desired use the START and STOP keys on the sweeper to input the desired frequency range 4 If external cables and or devices are used between the sweeper leveling point the RF OUTPUT if internally leveled or the coupler splitter output if externally leveled and the remote test port the nominal average loss of these components should be entered as an offset To enter the power offset press OFFSET in the POWER key group and then enter the nominal loss from the leveling point of the sweeper to the test port For example if there is a 6 dB loss from the leveling point to the remote test port enter a power offset of 6 dB 5 Set the power level to the level desired at the tat port by pressing Power LeveL and entering the desired number 6
86. e not warranted parameters Pulse On Off ratio 60 dB Rise Falltimes 0 5 to 2 GHz 15 ns 2 to 20 GHz 100 ns rise 50 ns fall Minimum leveled width 2 us for frequencies gt 500 MHz in CW mode or gt 2 GHz in swept mode Internal pulse generator Width range 1 us to 65 ms Period range 2 us to 65 ms Resolution 1 us Internal square wave 1 O kHz and 27 8 kHz scalar mode AM Sensitivity 1 dB V Bandwidth 3 dB gt 100 kHz usable to 1 MHz Depth for HP 8375XA 20 dB 10 dBm to 10 dBm Depth for HP 8375XB 22 dB 17 dBm to 5 dBm Input impedance 3 5 kohms 17 13 Specifications and Options Modulation FM AC Locked mode Rates 5 kHz to 10 MHz Maximum deviation same as unlocked mode up to 25 times the rate DC Unlocked mode Rates DC to 10 MHz Maximum deviation DC to 100 Hz rates 75 MHz 100 Hz to 1 MHz rates 7 MHz 1 MHz to 2 MHz rates 5 MHz 2 MHz to 10 MHz rates 1 MHz Sensitivity 6 or 20 MHz V See Chapter 15 Special Functions for FM sensitivity with millimeter head use Input impedance 1 kohm 17 14 General Compatibility HP 83751 and HP 83752 sweepers are compatible with HP 8757 scalar analyzers and HP 8970B noise figure meters Programming HP 83751 and HP 83752 sweepers are fully compatible with the Standard Commands for Programmable Instruments SCPI language SCPI complies with IEEE 488 2 1987 HP 8350 mnemonics have also been implemented to provide comp
87. e Aaa we ee we we 19 14 General soa xe See GOR oe ee rede Sole de AIS Compatibility PAPUE VAN Bon ati wa ats os A E a G ei 17 15 Programming o amp aac dee oe Ss Doh asi Me ee APD Master Slave two tone Measurements 17 15 Environmental 2 078 amp ale Se oe ak Sls 17 16 Warmup Time 63 ge alae Sa gp EE a ee Ss IT 16 Power Requirements 2 2 ee ee ee ee ee IT 17 Dimensions 1 ee ee ee ee 17 17 Weight shia si 4dr mage TH EE ae 17 18 Options er oe eee ee ae 17 19 Electrical Options a fer 17 19 Option 1E1 Add Output Step Attenuator he few 17 19 Option 1E4 Rear Panel RF Output 17 19 Contents 5 Option 1E5 Add High Stability Timebase 17 19 Option 1ED Type N RF Output Connector 17 19 Option LEE Source Module Connector and Extension Cables k deau ee Boat le Boe Be care et Bee 17 20 Mechanical Options 2 1 ee ee es 17 20 Option 1CM Rack Mount Kit without Handles 17 20 Option 1CP Rack Mount Kit with Handles 17 20 Option AX2 Portable Handle and Front panel Cover 17 20 Warranty Options e 6 sn a amp SE Ai we ee 17 21 Option W30 Two Additional Rears Return to HP Service io z a amp wy Sal ewok Ge He ALi we 17 21 Option W50 Five Year Return to HP Repair Service 17 21 Option W52 Five Year Return to HP Calibration Service lt 6 32405 ae he ee Sh 17 21 Option W54 Five Year MIL STD Calibration Service 17 21 Docum
88. e dependent error for devices that cannot detect more specific errors This code indicates only that a Device Dependent Error as defined in IEEE 488 2 11 5 1 1 6 has occurred System error Indicates that some error termed system error by the device has occurred This code is device dependent Memory error Indicates that an error was detected in the device s memory The scope of this error is device dependent Save recall memory lost Indicates that the nonvolatile data saved by the SAV command has been lost Configuration memory lost Indicates that nonvolatile configuration data saved by the device has been lost The meaning of this error is device specific Self test failed Queue overflow A specific code entered into the queue in lieu of the code that caused the error This code indicates that there is no room in the queue and an error occurred but was not recorded 16 20 Error Messages SCPI Error Messages Query Error An lt error event number gt in the range 499 400 indicates that the output queue control of the instrument has detected a problem with the message exchange protocol described in IEEE 488 2 chapter 6 The occurrence of any error in this class shah cause the query error bit bit 2 in the event status register IEEE 488 2 section 11 5 1 to be set These errors correspond to message exchange protocol errors described in IEEE 488 2 section 6 5 One of the following is true
89. e front panel of the sweeper Power correction will be linearly interpolated between the measured correction points The POWER display will now show the test port power Attention Before doing anything else save this calibration in one of the instrument s registers If the calibration has not been saved and the instrument is preset a register is recalled or the power offset is changed the calibration will be lost To save the calibration press SAVE and then enter the number of the instrument register you wish to save it in 5 5 Creating a user flatness array for use in a scalar analysis measurement The following example demonstrates how to setup a scalar analysis measurement using an HP 8757 Scalar Network Analyzer of a test device such as an amplifier User flatness correction is used to compensate for power variations at the test port of a directional bridge In this example an HP 437B power meter controlled by the sweeper through the interface bus HP IB is used to enter the correction data into a flatness array Figure 5 2 shows a typical system setup The setup shown assumes that if the setup has an external leveling configuration that the steps necessary to correctly level have been taken Refer to Chapter 2 Externally Leveling the Sweeper for information on external leveling SCALAR SYNTHESIZED NETWORK ANALYZER SWEEPER SWEEP OUTPUT SWEEP INPUT je
90. ection code checking has found that the FLASH ROM has a low byte error 330 Self test failed ROM Checksum Error HIGH BYTE 413 16 29 Error Messages SCPI Error Messages 414 415 416 417 418 419 420 16 30 Indicates that after the instrument is up and running a series of power on self tests have been run and error correction code checking has found that FLASH ROM has a high byte error 330 Self test failed Boot ROM Checksum Error LOW BYTE 414 Indicates that after the instrument is up and running a series of power on self tests have been run and error correction code checking has found that Boot ROM has a low byte error 330 Self test failed Boot ROM Checksum Error HIGH BYTE 415 Indicates that after the instrument is up and running a series of power on self tests have been run and error correction haming code checking has found that Boot ROM has a high byte error 330 Self test failed RAM backup battery is LOW 416 Indicates SRAM backup battery is LOW 330 Self test failed Power Up RAM Addressing Error 417 Indicates RAM Addressing Error during Power Up 330 Self test failed Power Up RAM Test Error LOW BYTE 418 Indicates that after the instrument is up and running a series of power on self tests have been run and RAM Test is found to have low byte error 330 Self test fa iled Power Up RAM Test Error HIGH BYTE 419 Indicates that
91. ed 330 Self test failed DSP Handshake Fail During Byte Transfer 424 Indicates that after the instrument is up and running byte transfers with the Digital Signal Processor have failed 120 Numeric data error Entered Value is not a Valid Patch Number 430 Indicates that a Self Test patch had been requested to be deleted from the eeprom Self Test Patch Table however the entered value is not a valid patch number A valid patch number is the index of the patch item in the patch table starting at 1 It is not the test lt name gt 16 31 Error Messages SCPI Error Messages Internal Hardware Errors 501 502 503 504 505 300 Device specific error V GHz DAC Out Of Range 501 2 11 Trigger ignored Trigger Immediate Ignored 502 211 Trigger ignored Sweep Trigger Immediate Ignored 503 213 Init ignored Init Immediate Ignored 504 211 Trigger ignored Group Execute Trigger or TRG Ignored 505 Hardware Configuration Errors 601 602 603 604 605 16 32 311 Memory Error Not Able to Recall From EEPROM Default Used 601 More that a single bit error has been detected when recovering calibration data from EEPROM Thus it could not be used Default calibration data is used instead 311 Memory Error EEPROM Failure Calibration data could not be saved 602 Calibration could not be stored in EEPROM EEPROM have been detected to have f
92. een the attenuator and the ALC reference level is turned off in the Special area For Option 11 instruments only This mode is automatically selected whenever the ALC mode is not in internal mode or unleveled mode This annunciator indicates that the ALC mode is set to either Diode or Power meter This annunciator indicates that the Power Sweep function is active This annunciator indicates that the Power Slope function is active This annunciator indicates that the source is unable to maintain the correct output power level for the current output frequency or that the ALC is turned off This annunciator indicates that the RF output is turned off 7 21 Front Rear Panel Display LED Annunciators R This LED annunciator is lit when the sweeper is in remote HP IB operation L This LED annunciator is lit when the sweeper is receiving information or commands over HP IB T This LED annunciator is lit when the sweeper is transmitting information over HP IB S This LED annunciator is lit when the sweeper is receiving an SRQ over HP IB MKRA This LED annunciator is lit if the marker delta mode is on M1 M2SWP This LED annunciator is lit when_ M1 M2_sweee is pressed UNLOCKED FM This LED annunciator is lit if the FM mode is set to DC Unlocked FLTNESS ON This LED annunciator is lit if a power flatness correction array is enabled 7 22 HP IB Lang Address Switch The HP IR switch on the rear panel is used t
93. eeper is displayed in the MARKER SWEEP STATUS area in the format HF IE Address xx where xx represents the two digit HP IB address number The address can be changed by using the f QD keys by turning the front panel knob or by using the entry keypad The acceptable range of addresses is O to 30 with the default value being 19 Notes 1 An HP IB address entered from the front panel will not change when is pressed 2 If the power to the instrument is cycled or lost the address entered from the front panel will survive only if the rear panel HP IB switch is set to 31 otherwise after a power cycle or loss the HP IB address will default to the rear panel switch setting Associated SCPI Commands SYSTem COMMunicate GPIB ADDRess Sets the HP P address of the lt num gt sweeper to lt num gt See Also HP IB Switch in the chapter titled Front Rear Panel To Select the Sweeper Language and HP IB Address in the HP 83751A B and HP 83752A B Synthesized Sweepers Installation and Quick Start Guide Instrument State Keys MSG MSG The key causes the last message from the message queue to be displayed in the MARKER SWEEP STATUS area of the display When a new message appears in the message queue the MSG annunciator is lit and remains lit until this key is pressed If more than one error message is present in the queue subsequent presses of the MSG key will show the next messages in line When all the messages ha
94. ell as the various mechanical electrical warranty and documentation options that are available Safety and Regulatory Information contains required regulatory and safety information that is not included elsewhere in the instrument documentation Certification Hewlett Packard Company certifies that this product met its published specifications at the time of shipment from the factory Hewlett Packard further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology to the extent allowed by the Institute s calibration facility and to the calibration facilities of other International Standards Organization members Regulatory Information The Safety and Regulatory Information chapter contains regulatory information viii Warranty This Hewlett Packard instrument product is warranted against defects in material and workmanship for a period of one year from date of shipment During the warranty period Hewlett Packard Company will at its option either repair or replace products which prove to be defective For warranty service or repair this product must be returned to a service facility designated by Hewlett Packard Buyer shall prepay shipping charges to Hewlett Packard and Hewlett Packard shall pay shipping charges to return the product to Buyer However Buyer shall pay all shipping charges duties and taxes for products returned to Hewle
95. en the span is reduced to keep the start and stop frequencies in range The center frequency is always coupled to previously set start and stop frequencies by the equation CF START STOP 2 Associated SCPI Commands FREQuency MODE SWEep Sets the instrument to sweep mode FREQuency CENTer lt num gt suffix Sets the canter frequency to the desired value Associated 8350 Commands CF lt num gt suffix Sets the canter frequency to the desired value MKR gt CF When this function is selected by pressing SHIFT CF the center frequency becomes the value of the active marker The span width does not change If all markers are off when this key is pressed then no action takes place This function works in either Start Stop or CF Span modes Associated SCPI Commands MARKer n FREQuency Retrieves the value of the marker FREQuency CENTer lt freq from Sets the canter frequency to the above gt suffix value of the marker Associated 8350 Commands MC Sets the canter requency to the value of the active marker 11 8 Frequency Keys Pressing the SPAN key puts the instrument into the sweep mode and allows the span of the sweep to be changed This key puts the instrument into sweep mode and displays the center frequency and frequency span in the FREQUENCY display The CF and SPAN annunciators are turned on The frequency span becomes the active parameter If the span is changed to a value that would put one en
96. entation Options 1 ee eee eee 17 22 Option OB2 Extra Operating Documentation 17 22 Option OB3 Service Documentation 17 22 Certification Options oa a a ee eee 17 22 Option IBN Certification 2 1 ee ee 17 22 Option 1BP Certification with Data 17 22 18 Safety and Regulatory Information Regulations and Licensing ee eee 18 3 Notice for Germany Noise Declaration 18 3 Safety Information 4 4 was We ae ty ao ee ag 18 8 Statement of Compliance s 2 6 ee ee es 18 8 Environmental Conditions e ee ee 18 8 Ventilation Requirements 2 ee ee eee 18 9 Cleaning Instructions 1 1 ee ee eee 18 9 Index Contents 6 Figures 1 1 1 2 2 1 2 2 2 3 2 4 The UNLEV Annunciator Location 2 1 7 Connections for Checking Output Power 1 8 ALC Circuit Externally Leveled 2 2 2 20022 2 3 Typical Diode Detector Response at 25 C 2 5 Leveling with a Power Meter 02 2 7 Millimeter wave Source Module Leveling 2 9 Millimeter wave Source Module Leveling Using a Microwave Ampliler op e ae My eg a ee ae ew a 2 10 Millimeter wave Source Module Leveling 4 4 Millimeter wave Source Module Leveling Using a Microwave Amplitiet airea ee Gal in Re tite a eee 4 6 Creating a User Flatness Array 2 5 3 Scalar Measurement System Setup 2 5 6 Master Slave Se
97. er Display 7 16 Front Rear Panel Display Frequency Display The left hand display is labelled FREQUENCY and is used exclusively to show information about frequencies being generated Information about markers is not pertinent to generated frequencies and is not displayed here In Start Stop and CF Span sweep modes the left display has two separate fields of 11 characters each whose contents depend on the instrument mode Two blank spaces separate the two fields Frequencies are displayed using eight significant digits followed by a three character frequency unit kHz MHz or GHz The decimal multiplier is changed automatically to keep the number being displayed in the range of 1 to 999 99999 and digits below 1 kHz resolution are not shown Leading zeros are suppressed In CW mode there is one 24 character field Frequencies are displayed using up to 11 significant digits followed by a three character frequency unit kHz MHz or GHz The decimal multiplier is changed automatically to keep the number being displayed in the range of 1 to 999 99999 and digits below 1 Hz resolution are not shown Leading zeros are suppressed NOTE The decimal separator either or can be changed by selecting Special function number 18 Refer to the Special Functions chapter for more information Front Rear Panel Display Marker Sweep Status and Power Display The right hand display is divided into two fields although the
98. er Met er Source Module The ALC point is inside an external source module Leveling millimeter head The displayed message is ALC SourceModu 1 This mode is selected automatically when the key is pressed with a millimeter head connected Associated SCPI Commands POWer ALC SOURce INTernal Sets the ALC mode to nterna POWer ALC STATe ON Turns ALC on POWer ALC SOURce DIODe Sets the ALC source selection switch to external detector veling POWer ALC SOURce PMETer Sets the ALC source selection switch to external power meter Aveling POWer ALC SOURce MMHead Sets the ALC source selection switch to external millimeter head leveling POWer ALC STATe OFF Selects unleveled mode Associated 8350 Commands Al Sets ALC mode to internal A2 Sets ALC mode to external detector leveling A3 Sets ALC mode to external power meter Aveling 13 8 Power Keys ALC MODE ff EXT CAL This function selected by pressing SHIFT ALC MODE is used to calibrate the RF output power in external diode and power meter leveling modes only by setting a nominal coupling factor between the RF output and the external detector This coupling factor can be adjusted to make the nominal RF output power agree with the POWER display This function affects only the RF output power by offsetting the ALC reference voltage it does not affect the POWER display When this function is selected the coupling factor becomes the active parameter displayed
99. er has entered a Self Test Patch with upper or lower limit values greater than allowed All upper and lower limits of these Self Test Patches must be with in the range of 32767 to 32768 220 Parameter error Incorrect Number of Parameters 404 Indicates that user has entered too many or not enough parameters to complete the entry for a Self Test Patch Parameters required to enter a Self Test Patch are lt name gt lt upperLim gt lt lowerLim gt and lt patchType gt Refer to the Service Manual for more information 330 Self test failed Self Test Patches Lost 405 The conditions indicated by this error are 1 firmware has been upgraded and the test patch table has been initialized Refer to service documentation for the appropriate patch table entries associated with the new firmware revision 2 SRAM and EEPROM test patch tables have been corrupted and are incorrectable Refer to service documentation for troubleshooting information 16 28 406 407 408 409 410 411 412 413 Error Messages SCPI Error Messages 330 Self test failed Self Test Patch Table Locked 406 Indicates that segment 7 of the CPU board DIP switch is closed prohibiting modification of the test patch table Switch 7 must be in the open position to allow modification 330 Self test failed Instrument Bus Error Occurred 407 As part of the power on process the cpu attempts to write and read a speci
100. es of frequencies over its entire range to optimize RF output power This procedure is also called autotracking Before performing autotracking make sure the RF OUTPUT is either connected in a 50 Q system or has a load on it such as a power sensor or attenuator For optimum power at all frequencies do not run peak power tracking with a millimeter head connected to the sweeper While the peaking is in progress the message Tracki ma xx xx GHz will be displayed in the MARKER SWEEP STATUS area Note that autotracking will take typically a minute or longer to complete Pressing the key will abort the autotracking procedure Associated SCPI Commands CALibration PEAKing EXEcute CALibration TRACk 14 10 15 Special Functions Special Functions The special functions menu is accessed by selecting SPECIAL in the Instrument State group See Figure 15 1 INSTRUMENT STATE PRESET MODE SHIFT PRESET SAVE PRESET SPECIAL E SAVE RECALL ADDRESS ALT n a LOCAL MSG pg4iab Figure 15 1 The Instrument Group This chapter contains information on the various special functions available for the instrument Special functions are not available during normal operation and can only be invoked by selecting the SPECIAL function form lt number gt lt function gt such as 8 FOSC AUTO A particular special function can be accessed in two ways e By scrolling through the special fun
101. essage is Markers Amplitude Intensity In this mode the on markers appear as a 5V pulse at the Z AXIS BLANK MKRS rear panel output connector The displayed message is Markers Intensity NOTE The Z axis markers are always on so it is not possible to have amplitude markers on and intensity markers off 9 5 Marker Keys Associated SCPI Commands MARKer AMPLitude STATe ON Selects marker amplitude mode MARKer AMPLitude STATe OFF Selects marker intensity mode Associated 8350 Commands AK1 Selects marker amplitude mode AKO Selects marker intensity mode 9 6 Marker Keys OFF ALL OFF This key turns off a marker only if it is displayed in the MARKER SWEEP STATUS area as the active parameter Note that the pointers must be over the frequency value The instrument then returns to the same state as if had just been pressed displaying the new status of which markers are on and off The A Reference marker cannot be turned off if Marker A Mode is turned on The MKRS annunciator is turned off only if all the markers are off Associated SCPI Commands MARKer n STATe OFF Tums marker n off Associated 8350 Commands M lt n gt MO Turns marker lt n gt off This function turns off all the markers regardless of the active parameter The instrument then returns to the same state as if had just been pressed displaying M On The MKRS annunciator is turned off Marker A Mode is also turned off
102. ets the instrument programming language to SCPI SYStem LANGuage COMP Sets the instrument programming language to HP 8350 compatible 15 20 Special Functions 16 FW REVISION 16 FW This function allows you to view the revision number of the firmware that is REVISION installed in your instrument Associated SCPI Commands IDN Queries the instrument for model number serial number and firmware revision 15 21 17 SECURITY 400 ZERO FREQ Special Functions The SECURITY selection is a menu of functions that provide you with the following capabilities e Replacing the frequency and marker displays with zeros e Clearing and initializing RAMs to zeros e Disabling the function e Blanking the display e Locking the front panel keyboard When you press SHIFT SPECIAL Hz s ENTER_ the security menu is displayed The following are descriptions of each of the menu items This function allows you to replace the frequency and markers displayed on the front panel with zeros Each frequency is displayed as S9888008H If markers have been set they are also displayed as zeros Annunciators such as SWEEP and CW are not blanked This function cannot be executed when the instrument is connected to an HP 8757 or when the instrument is speaking 8350 compatibility language If you attempt to do so nothing happens except an error message is displayed When you press SPECIAL Hz s enter_ the following me
103. f alternate sweep NOTE If the attenuator setting in the selected register differs from the current setting then the current setting is used and the MSG annunciator is lit and an error message is displayed Associated SCPI Commands SYSTem ALTernate lt n gt Selects the instrument state in register lt gt as the instrument state to be afternated with the current state SYSTem ALTernate STATe ON Tums on the altemate sweep function SYSTem ALTernate STATe OFF Tums off the altemate sweep function Associated 8350 Commands ALi lt n gt Tums alternate sweep on and selects the instrument state stored in register lt gt as the state to be alternated with the current state ALO Turns off the alternate sweep function 8 12 Marker Keys Marker Keys MARKERS MRK MODE 4 MKR n ALL OFF OFF MRK A REF MKR A M 1 M2 MRKA SWP O O pg43ab Figure 9 1 The Markers Group There are ten markers MO through M9 Any combination of these may be on at one time and they may be set to a frequency anywhere in the instrument s current frequency range When the instrument is preset factory mode the values of all of the markers are set to the center frequency of the instrument s frequency range When a marker is first turned on its initial value will be either the preset value or the last value it was set to If a marker has been previously set to a value outside the range of the current
104. gs 7 23 IEEE Standard 488 1978 7 12 initializing RAMs to zero 15 23 instruction manual symbol defined xii instrument language to set 15 20 instrument language switch 7 23 instrument language switch settings 7 24 instrument state keys 8 2 intensity markers 9 5 interface capabilities HP IB 7 12 internal leveling 13 7 internal modulation 10 3 internal pulse mode 10 4 In This Book vi INTMOD annunciator 7 21 introduction book vi introduction to the sweeper ili Index 7 K keyboard locking 15 25 keypad 14 5 key representations xiv knob 7 26 L LANGUAGE 15 20 language switch 7 23 language switch settings 7 24 left hand display 7 17 leveled output power check 1 6 leveled power maximum 17 7 leveling diode 13 7 external 2 2 11 external low output 2 6 external specifications 17 9 external with power meters 2 7 external with source modules 2 9 internal 13 7 power meter 13 7 source module 13 8 leveling control key 13 7 licensing 18 3 line power switch 7 27 line switch 7 27 L LED 7 22 L LED annunciator 7 22 local key 8 10 LOCAL key 8 10 locking the keyboard 15 25 M M1I M2 SWEEP key 11 12 M1 M2 SWP annunciator 7 22 M1 M2 SWP LED 7 22 MAN annunciator 7 20 manual outline vi manual sweep mode 12 5 marker active 9 3 marker keys 9 2 9 marker modes 9 5 markers all off 9 7 amplitude 9 5 Index 8 intensity 9 5 off key 9 7 to turn
105. gt SAVE When this function is selected by pressing SHIFT SAVE the current PRESET instrument state is saved into the user defined preset storage register The right hand display shows Preset Saved NOTE When the instrument is connected to an HP 8757D scalar network analyzer its system interface must be temporarily turned OFF in order to save a user defined preset instrument state Refer to the HP 87570 Scalar Network Analyzer Operating Reference 8 6 Instrument State Keys NOTE The saved user defined preset cannot be recalled until User preset is selected using the PRESET MODE function described earlier in this chapter Associated SCPI Commands SYSTem PRESet SAVE Saves the current instrument state into the userdefined preset storage register 8 7 Instrument State Keys SPECIAL Pressing this key restores the state of the instrument from a register 1 9 When this key is pressed the prompt message in the right hand display is RECALL Rea 77 When a digit lt n gt is pressed on the entry keyboard the display shows FECALL Reg lt n gt and the instrument state is recalled from that register Note that a units key i e Hz s ENTER does not need to be pushed Successive numbers can be pushed to recall instrument state from multiple registers Entry key 0 has no effect Associated SCPI Commands RCL lt n gt Restores the state of the instrument from register lt gt Associated 8350 C
106. h nominal External mm wave module HP 83550 series compatible with Option 1EE User Flatness Level Correction Number of points 2 to 801 points table Number of tables up to 9 Entry modes power meter HP IB Compatible with HP 437B 438A 70100 and SCPI compatible power meters 17 9 Specifications and Options RF output Source Match lt 1 7 1 SWR internally Leveled 17 10 Spectral Purity Harmonics at max leveled power wots rey aren ve HP 83751A and HP 83752A 10 MHz to 1 5 GHz 30 dBc 1 5 GHz to 20 GHz 45 dBc HP 83751B and HP 83752B All 20 dBe Subharmonics None Non harmonic Spurious This specification applies for coupled attenuator mode Option 1E1 and ALC level gt 10 dBm HP 83751A and HP 83752A gt 5 dBm HP 83752A and HP 83752B This specification also applies for frequencies gt 500 kHz from the carrier and at levels lt 5 dBm below 2 GHz Non harmonic spurious 50 dBc 17 11 Specifications and Options Spectral Purity Single Sideband Phase Noise 50 70 D agh S Q w 110 ga 130 150 100 1K 10K 100K 1M 10M Offset From Carrier pg429ab Figure 17 3 Typical Phase Noise 10 GHz Carrier Residual FM 0 05 to 15 kHz bandwidth Residual FM 1 kHz RMS in CW mode Residual FM is typically lt 10 kHz in unlocked FM mode 17 12 Modulation Please note that all modulation characteristics are typical or nominal and ar
107. hat the RF OUTPUT connector was terminated before the peak power tracking sequence was run and before the maximum leveled power check o Make sure the power you entered in steps 2 and 5 of the maximum leveled power check procedure are correct for your particular instrument a If the measured value of power in step 6 of To check the output power is more than the specified power turn the front panel knob counterclockwise until the value measured equals the specified power Note the sweeper s front panel reading and use this value to repeat the maximum leveled power check a If the check still fails contact the nearest Hewlett Packard office for assistance NOTE If you need to ship your sweeper remove the front handles if so equipped and use the original packaging or comparablel Externally Leveling the Sweeper Externally Leveling the Sweeper In externally leveled operations the output power from the sweeper is detected by an external sensor The output of this detector is returned to the leveling circuitry and the output power is automatically adjusted to keep power constant at the point of detection 2 2 Leveling with detectors couplers splitters 1 Connect the equipment as shown in Figure 2 1 SYNTHESIZED SWEEPER DIRECTIONAL COUPLER OR POWER SPLITTER NEGAT I VE DETECTOR LEVELED OUTPUT pg417ab Figure 2 1 ALC Circuit Extemally leveled 2 Press ALC
108. he calibration Thirteen is the default address for power meters Press FLTNESS CAL a Select whether to calibrate over StarStop correction points will be linearly spaced over the selected Start Stop frequency range or Fu 11 Bard correction points will be linearly spaced over the full frequency range of the instrument Use the f keys to make your selection then press Hz s ENTER b Select the number of correction points using the keypad for your entry valid entries range from 2 to 801 then press Hz s ENTER c The MARKER SWEEP STATUS display should now read Conmect4s7BPM ENTER Creating User Flatness Arrays Creating a user flatness array To set up the power meter e Zero and calibrate the power meter sensor e Enter the appropriate power sensor calibration factors into the power meter e Enable the power meter sensor cal factor array For operating information on the HP 437B power meter refer to its operating and service manual e Connect the power sensor to the point where corrected power is desired See Figure 5 1 To start the user flatness cal e The MARKER SWEEP STATUS display should still read Comnect 4376 PM ENTER e Press Hz s ENTER to start the calibration The display will show each correction point s frequency and power as it is measured e When the calibration is finished the flatness correction is automatically turned on and the FLTNESS ON LED annunciator is lit on th
109. ibration 5 2 13 10 flatness corrected power 5 2 9 flatness correction user specifications 17 9 FLTNESS ON annunciator 7 22 FLTNESS ON LED 7 22 FLTNESS ON OFF key 13 10 FM residual specification 17 12 specifications 17 14 FM INPUT connector 7 5 key 10 7 FM mode key 10 7 FM modulation 10 2 10 7 FM off mode 10 7 FM SENSITIVITY 15 19 frequency center 11 8 characteristics 17 4 specifications 17 4 frequency display 7 17 11 2 frequency display zeroing 15 22 frequency functions 11 2 frequency keys 11 2 13 frequency multiplier function 1 1 7 frequency offset function 11 4 frequency standard selection 15 13 frequency start key 11 4 frequency stop key 11 6 front and rear panel connectors 7 3 front and rear panel features 7 2 30 front panel display 7 16 front panel features 7 2 30 front panel knob 7 26 front panel overview iv full self test 1 3 FULL SELFTST 15 28 Index 6 FW REVISION 15 21 G general safety considerations xiii H harmonics specifications 17 1 1 Hewlett Packard sales and service offices xi how to use this guide xiv HP 83550 series connector option 17 20 HP IB address power meter 15 18 to set 8 10 to view 8 10 HP IB connector 7 10 12 HP IB connector mnemonics 7 12 HP IB extender instruments 7 1 1 HP IB interconnections 7 11 HP IB interface capabilities 7 12 HP IB lang address switch 7 23 HP IB restrictions 7 11 HP IB status LEDs 7 22 HP IB switch settin
110. ices can now be tested 5 9 Operating a Master Slave Setup Operating a Master Slave Setup Two HP 83750 series sweepers can be configured for two tone measurement capabilities Two synchronously tracking sweepers can be configured as a master slave pair for mixer characterization or inter modulation distortion measurements The swept frequency accuracy allows control of the sweepers at Exed or swept frequency offsets To implement master slave operation configure the sweepers as shown in Figure 6 1 The master sweeper generates the 10 MHz frequency reference for both sources The source synchronization cable HP part no 83750 60059 must be connected between the auxiliary interface connectors on the rear panels of the sweepers When configuring a two tone measurement system the slave does not need to interface with any instruments other than the master The master should interface with the display device scalar analyzer or oscilloscope for example as if it were a stand alone sweeper 6 2 pg424ab SOURCE SYNCHRO NIZATION CABLE Operating a Master Slave Setup wes aaan aie Aati DISPLAY DEVICE 10 MHz AUXILIARY INTERFACE MASTER SYNTHESIZED SWEEPER AUXILIARY INTERFACE SLAVE SYNTHESIZED SWEEPER Figure 6 1 Master Slave Setup 6 3 To set up the master sweeper 1 Press PRESET 2 Activate the master mode by pressing SPECIA
111. iii vi book outline vi calibration flatness 13 10 calibration security 15 22 caution notice defined xii center frequency CW coupling 11 10 15 6 center frequency key 1 1 8 certification viii CF annunciator 7 20 cf key 11 8 key 11 8 cf span operation 11 9 check confidence 1 2 11 operator s 1 2 11 clearing memory 15 23 clearing the display 15 25 clear memory count 15 24 coaxial connectors 7 4 7 comma to change to decimal point 15 26 command errors 16 7 confidence check 1 2 11 Index 3 connector auxiliary interface 7 8 millimeter head interface 7 13 pinout auxiliary interface 7 9 source module 7 13 connector care 7 15 connectors 7 3 coaxial 7 4 7 damage levels 7 4 7 front panel 7 3 HP IB 7 10 12 impedances 7 4 7 multi pin 7 8 15 rear panel 7 3 continuous trigger mode 12 7 continuous wave 11 10 CONTROL MODE 15 27 conventions xiv copyright information ii correction user flatness array 5 2 cw swept 11 11 CW annunciator 7 20 CW center frequency coupling 15 6 CWCE auto on off 15 6 ew cf coupling 11 10 cw key 11 10 key 11 10 CW mode specifications 17 4 CW PEAKNG 15 7 data points 12 10 dc unlocked FM mode 1 0 7 decimal point to define 15 26 declaration of conformity 18 4 7 device specific errors 16 19 dictionary reference vi dimensions 17 17 disable entry function 14 9 disabling the save key 15 24 display 7 16 left hand 7 17 right hand 7 18
112. ime base reference which is within 10 ppm of 10 MHz or any sub multiple down to 1 MHz The nominal input impedance is 50 Q This connector detects when a valid reference signal is connected to it and automatically switches from internal to external reference operation This rear panel female BNC connector provides a nominal signal level of 0 dBm and output impedance of 50 Q The accuracy is determined by the tune base used This front panel female BNC connector is used for external power meter leveling or external negative detector leveling The damage level is 15 V The nominal input impedance is 100 KQ This rear panel female BNC connector accepts the amplitude modulating signal input when External AM is enabled The nominal input impedance is 3 5 kQ The damage level is 15 v This rear panel female BNC connector accepts the frequency modulating signal input when DC or AC FM is enabled The nominal input impedance is 1 KQ The damage level is 15 v This rear panel female BNC connector can be used as either an external pulse input or output for internal pulse modulation In either case it is TTL level compatible and has a nominal impedance of 5 kQ The damage level is gt 10 V or lt 5 V A TTL high level gt 2 V enables the selected power level to be at the RF OUTPUT connector while a TTL low level turns the RF off 7 5 Front Rear Panel Connectors STOP SWEEP SWEEP OUT TRIGGER INPUT TRIGGER O
113. in Description of the Auxiliary Interface Pin Function Signal level Alternate Sweep Out Z Axis Blanking Markers Spare Rear Panel Control 3 low Stop Sweep 5 2 v Digital Ground Low Divider Sync External Trigger Rear Panel Control 1 Rear Panel Control 0 Low Retrace Alternate Sweep In Low Marker Rear Panel Control 4 Rear Panel Control 2 Sweep Output Digital Ground No Connection No Connection No Connection low Source Settled low Source Settled Spare Low Qualified Stop Sweep TTL Blank 5 V Marker 5 V 12v TIL TIL Oto 10 V ramp Gnd Or Dto 10 V pulses when used with a HP 87570 scalar analyzer 7 9 HP II Front Rear Panel Connectors This connector allows the sweeper to be connected to other instruments or devices on the interface bus Details of this cable are shown in Figure 7 4 HP part numbers for various HP IB cables that are available are shown in the table following the figure pg415ab Figure 7 4 HP IB Connector and Cable HP IB Interface Cables Available HP IB Cable Part Number 1 HP 10833B 2 m 6 6 fti HP 10833C 4 m 13 2 ft HP 108330 0 5 m 1 6 ft Front Rear Panel Connectors As many as 14 HP B instruments can be connected to the sweeper 15 total instruments in the system The cables can be interconnected in a star pattern one central instrument with the HP IB cables emanating from that instrument like spokes on a wheel or in a l
114. in the MARKER SWEEP STATUS area of the display The display format is Coup Fact XX gE A coupling factor between 30 dB and 30 dB can be entered Associated SCPI Commands POWer ALC CFACtor lt num gt DB Sets the coupling factor to be used when the external detector or power meter veling is used 13 9 Power Keys FLTNESS ON OFF This function toggles the user flatness correction on and off The flatness correction and the FLTNESS ON LED annunciator are alternately turned on and off each time the key is pressed Associated SCPI Commands CORRection STATe ON Turns flamess correction on CORRection STATe OFF Turns flatness correction off FLTNESS CAL Selecting this function by pressing_ SHIFT _ FLTNESS owor initiates a calibration sequence which calibrates the power level at a remote test port using an external power meter Power correction values relative to frequency are measured and stored into a user flatness correction array The MARKER SWEEP STATUS display is used to prompt the user Before pressing this key the user should refer to the Creating User Flatness Arrays chapter in this manual for detailed instructions See Also For detailed task information on how to perform a user flatness calibration refer to Creating a User Flatness Array in Chapter 5 of this manual 13 10 14 Entry Keys Entry Keys kHz ms ENTRY OFF Hz s ENTER
115. in the form M On 812245678 3 where each digit 0 9 is replaced by a if that marker is off When a digit 0 9 is then pressed on the Entry keyboard the appropriate marker MO through M9 becomes the active parameter displayed in the MARKER SWEEP STATUS area with pointers over the frequency to indicate that the marker frequency can be entered directly from the keyboard as well as with the front panel knob and CD keys The displayed marker becomes the active marker as well Note that if another key is then pressed making another function the active parameter this marker remains the active marker until it is turned off or until another marker is made the active parameter If any markers are turned on the MKRS annunciator is lit If Marker A Mode is off the marker frequency is displayed in the format Mn lt digits gt lt units gt Eight significant figures can be displayed Units can be MHz or GHz If Marker A Mode is on the frequency difference between the active marker and the A Reference marker is displayed in the format Min ro lt sign gt lt digits gt lt umits gt where n is the active marker and r is the number of the A Reference marker Five significant digits can be displayed Units can be kHz MHz or GHz When Marker A Mode is on the frequency of the active marker is still entered directly from the keyboard even though the frequency difference is being displayed Marker The user can quickly scroll through the fre
116. inal can result in personal injury 7 28 Power Cables The line power cable is supplied in one of several configurations depending on the destination of the original shipment Each instrument is equipped with a three wire power cable When connected to an appropriate AC power receptacle this cable grounds the instrument chassis The type of power cable shipped with each instrument depends on the country of destination See Figure 7 12 Power Cable and Line Mains Plug Part Numbers for the part numbers of these power cables Cables are available in different lengths and some with right angle plugs to the instrument Check with your nearest Hewlett Packard service center for descriptions and part numbers for these cables NOTE There is no line voltage selector switch on the instrument The line module will automatically switch between 110 and 220 Vac as needed Front Rear Panel CABLE PLUG CABLE CABLE FOR USE PLUG TYPE wp PART DESCRIPTION LENGTH COLOR IN COUNTRY NUMBER CM INCHES 250 8120 1351 Straight BS1363A 229 90 Mint Gray Great Britain Q 8120 1703 90 229 90 Mint Gray Cyprus Nigeria E o o Singapore L N Zimbabwe Argentina 250V 8120 1369 Straight NZSS198 ASC112 201 79 Gray CTE 8 120 0696 90 221 87 Gray New Zealand Mainland China 250V 8120 1689 Straight CEE7 Y11 201 79 Mint Gray East and West Europe Central f 201 79 Mint Gra 0 912
117. inear pattern like boxcars on a train or a combination of the two There are certain restrictions that must be followed when interconnecting instruments e Each instrument must have a unique HP IB address ranging from 0 to 30 decimal Refer to HP IB Lang Address Switch later in this chapter or ADDRESS in the Instrument State Keys chapter for information on setting the sweeper HP IB address e In a two instrument system that uses just one HP IB cable the cable length must not exceed 4 meters 13 2 ft e When more than two instruments are connected on the bus the cable length to each instrument must not exceed two meters 6 6 ft e The total cable length between all instruments must not exceed 20 meters 65 ft Hewlett Packard manufactures HP IB extender instruments Models HP 37201A and HP 37204A B that overcome the range limitations unposed by the cabling rules These extenders allow twin pair cable operation up to 1 km 3 280 ft and telephone modem operation over any distance HP sales and service offices can provide additional information on the HP IB extenders 7 11 Front Rear Panel Connectors The codes next to the HP IB connector illustrated in Figure 7 4 describe the HP IB electrical capabilities of the synthesizer using IEEE Std 488 1978 mnemonics HP IB GP IB IEEE 488 and IEC 625 are all electrically equivalent Briefly the mnemonics translate as follows SH1 AH1 T6 TEO L4
118. ing the last item from the queue 16 3 Error numbers The system defined error event numbers are chosen on an enumerated 1 of N basis The SCPI defined error event numbers and the lt error description gt portions of the ERRor query response are listed here The first error event described in each class for example 100 200 300 400 is a generic error In selecting the proper Error event number to report more specific error event codes are preferred and the generic error event is used only if the others are inappropriate Error Messages List The list of error messages in this chapter lists all of the error messages associated with sweeper operation An example of the error format found in the list of error messages is as follows 403 222 Data out of range Test Patch Value Out of Range 403 Indicates that user has entered a Self Test Patch with upper or lower limit values greater than allowed All upper and lower limits of these Self Test Patches must be with in the range of 32767 to 32768 The following explains each element of an error message listing e Manual Error Number The number 403 to the left and in the parenthesis is called the Manual Error Number The error message list is organized in ascending order off the manual error number The manual error number will always be found in the parenthesis contained in the message e Error Message The bold text 222 Data out of
119. is pressed 4 5 Generating a Millimeter Signal SOURCE MODULE INTERFACE ADAPTER IF REQUIRED MICROWAVE AMPLIFIER NTERFACE XTENDER CABLE RF IN RF OUT WMELWAVE SOURCE MODULE RF IN LEVELED OUTPUT pg421ab Figure 4 2 Millimeter wave Source Module leveling Using a Microwave Amplifier See also To obtain flatness corrected power refer to Creating User Flatness Correction Arrays later in this section 4 6 Creating User Flatness Arrays Creating User Flatness Arrays This chapter explains how to create user flatness correction arrays which calibrate the power level at a remote test port Two examples are provided e The first example shows the basic setup and steps to create a user flatness array e The second example shows how to set up a scalar analysis measurement using a user flatness correction array 5 2 Creating a user flatness array In this example an HP 437B power meter controlled by the sweeper through the interface bus HP IB is used to enter the correction data into a flatness array Figure 5 1 shows a typical system setup The setup shown assumes that if the setup has an external leveling configuration that the steps necessary to correctly level have been taken Refer to Chapter 2 Externally Leveling the Sweeper for information on external leveling RF OUTPUT INPUT l t i CABLES 4AND OTHER 8 DEV
120. itled front o the service related function menus and are documen a cycling of the line power Rear Panel in this manual for ed in the HP 8375 A B and HP 83752A B Synthesized Sweepers Service Guide These areas are intended only for use by service personnel 15 5 Special Functions 1 CWCF This special function sets the CW CF coupling to either on or off When this AUTO switch is on the CW function is coupled to the center frequency and any change made to the center frequency is also made to CW However if CW is changed the switch is automatically toggled off and no change is made to the center frequency Associated SCPI Commands FREQuency CW AUTO ON Turns CW CF coupling on FREQuency CW AUTO OFF Tums CW CF coupling off 15 6 Special Functions 2 CW PEAKNG 2 CW This function causes a one time execution of the peaking function when the sweeper is in CW or manual sweep mode It aligns the output filter so that its PEAKNG passband is centered on the RF output CW peaking is used to obtain the maximum available power and spectral purity and the best pulse and FM envelopes at a given frequency NOTE If the instrument is not in CW or manual sweep mode nothing will happen when Hz s ENTER is pressed Associated SCPI Commands CALibration PEAKing EXECute Executes the peaking function Special Functions This function lets you set the instrument s sweep tune to
121. ker as the A marker When this key is pressed the user can select which marker 0 9 is the A Reference Marker The marker number becomes the active parameter which is displayed in the MARKER SWEEP STATUS area The A Reference Marker is turned on if Marker A Mode is turned on The display is in the format Mk r De 1 t a Ref lt n gt If a number 0 9 is entered from the keyboard the key must be used to terminate the entry If no other marker has been selected MI is the default A Reference Marker Associated SCP Commands MARKer n REFerence lt n gt Sets marker lt gt as the A reference marker 10 Modulation Keys Modulation Keys UNLOCKED FM 0 pg44ab Figure 10 1 The Modulation Group AM and FM modulation is obtained by means of an external signal being applied to the rear panel AM INPUT or FM INPUT BNC connectors There are 2 FM modes AC locked and DC unlocked NOTE In the DC unlocked mode frequency accuracy will he degraded as a result of the synthesizer being bypassed 10 2 Modulation Keys Pulse modulation is either internal or external Internal pulse modulation is either controlled by a built in pulse generator or preset to either a 1 kHz or a 27 kHz square wave When external pulse is selected the instrument is modulated by a signal present on the PULSE IN OUT connector on the rear panel When external modulation is enabled the EXT MOD annunciator is turned on When internal mod
122. led power UNLEV ANNUNCIATOR pg426ab Figure l l The UNLEV Annunciator location For HP 83752B Instruments Only The HP 83752B sweepers have a power specification that is split at 2 GHz 7 Press the following keys to set a sweep range of 2 GHz to 20 GHz and a power level of 17 dBm or 16 dBm for instruments with option 1E1 power LEVEL G7 or 8 8 Press and make sure the UNLEV annunciator does not come on at any point during the sweep If the annunciator comes on it indicates the instrument is unleveled The UNLEV annunciator is located in the POWER display area See Figure 1 1 1 7 To check the output power 1 Connect the equipment as shown POWER METER SYNTHESIZED SWEEPER SENSOR RF OUTPUT POWER SENSOR ADAPTER pg427ab Figure 1 2 Connections for Checking Output Power 2 Press PRESET_ 3 Press CW 20 GHz dB m 4 Press POWER LeveL and enter the specified power for the CW frequency you set Refer to the following table Terminate the power level entry by pressing GHz dB m Instrument Maximum leveled Power Specification HP_83751A 83752A 10 dBm HP 837518 17 d8m HP 837528 lt 2 GHz 16 dBm gt 2 GHz 17 dBm option 1E1 step attenuetorl reduce by 1 dB 1 8 Performing the Operator s Check To check the output power 5 Set the power meter calibration factor to the value listed
123. lue and allows it to be changed This function controls the change in RF power as the instrument sweeps with units of dB Sweep If this key is pressed when power sweep mode is off or when another parameter is displayed in the MARKER SWEEP STATUS area then power sweep becomes the active parameter and the PWR SWP annunciator is turned on Pressing the key again turns power sweep mode off and turns the PWR SWP annunciator off A positive or negative value may be entered The power must remain within the ALC leveling range and may not cross an attenuator boundary The value of power at the start of the sweep will be displayed in the POWER area and will be automatically varied if necessary to keep the power within the ALC leveling range The display format is Fur Sweep XX dE Resolution is 0 1 dB Associated SCPI Commands POWer MODE SWEep Turns power sweep mode on POWer MODE FIXed Turns power sweep mode off POWer STARt lt num gt DBM Sets the start of the power sweep to the desired value POWer SPAN lt num gt DBM Sets the power span to the desired value Associated 8350 Commands PSI lt num gt suffix Turns power sweep on PSO Tums power sweep off 13 5 SLOPE Power Keys POWER SWEEP Selecting this function by pressing_ SHIFT POWER sweeP controls the power slope which is the change in power per unit frequency This function is used to increase the RF power by a constant dB amount per unit RF
124. nd instrument error 222 limit error may occur Special Functions 5 SWPTIME This function allows you to set the lower limit of the sweep time The lower limit refers to the fastest sweep rate that the instrument will sweep LLIM F l Performing a preset removes the limit and allows the instrument to sweep at the fastest possible rate 15 10 6 ATT COUPLING Special Functions 6 ATT COUPLING This function allows you to set the RF attenuator coupling switch When the switch is on internal algorithms select the proper attenuator setting for optimum ALC performance When the attenuator coupling is turned off the attenuator setting is set to the whatever the current value is and left there When the coupling is off the UNCPLD annunciator appears in the right hand display If ATT SETTING special function number 7 is used to set a specific attenuation the RF attenuator coupling switch is automatically turned off NOTE Since this function applies only to Internal or Unleveled ALC modes the UNCPLD annunciator will light in external ALC mode operation regardless of how the attenuator coupling switch is set NOTE This function is visible with all instruments but only active in instruments with Option 1E1 Associated SCPI Commands POWer ATTenuation AUTO ON Turns the RF attenuator coupling switch on POWer ATTenuation AUTO OFF Turns the RF attenuator coupling switch off 15 11 Special Functions 7
125. o select the sweeper language and HP IB address when you apply AC power These parameters can also be selected via front panel operation Refer to Figure 7 8 for a pictorial explanation of the various switch settings for the HP IB address of the sweeper The selected address depicted in this figure represents an HP IR address of 19 When the HP IR portion of the switch switch positions 1 through 5 are all set to 1 any address changes made from the front panel are retained through a power cycle of the instrument If you want your sweeper to default to a particular address at power up set the switch to the desired address you can still make changes from the front panel but they won t be retained through a power cycle Refer to Figure 7 9 for a pictorial explanation of the switch settings for instrument language Refer to Figure 7 10 for a pictorial explanation of how to set the switch for clearing the register contents at power on POSITION Ce ADDRESS 19 ADDRESS 54321 eae ADDS 1 TO ADDRESS IF SELECTED POSITION ADDS 2 TO ADDRESS IF SELECTED POSITION ADDS 4 TO ADDRESS IF SELECTED POSITION ADDS 8 TO ADDRESS IF SELECTED POSITION ADDS 16 TO ADDRESS IF SELECTED POSITION 1 qg425ab Figure 7 8 HP IB Address Switch Settings Front Rear Panel HP IB Lang Address Switch LANG Raat 321 LANG rer 321 M ws qg4260b Figure 7 9 Instrument lang
126. off 9 7 z mod 9 5 marker scrolling 9 4 marker sweep 11 13 marker sweep mode 11 12 marker to center frequency function 11 8 marker A key 9 8 marker viewing 9 4 master slave connector 7 8 master slave operation 6 2 7 to set the sweeper to master or slave 15 27 match source specification 17 10 maximum leveled power 17 7 maximum leveled power check 1 6 mechanical options 17 20 meter power leveling 2 7 millimeter head interface connector 7 13 millimeter head leveling 2 9 millimeter head use 4 2 millimeter signal to generate 4 2 minimum settable power 17 8 mkr n key 9 4 key 9 4 MKR gt OF function 11 8 MKRS annunciator 7 21 MKR A annunciator 7 22 key 9 8 MKR A LED 7 22 mkr A ref function Q Q mm wave head option 17 20 modulation AM 10 6 AM specifications 17 13 FM 10 7 FM specifications 17 14 pulse specifications 17 13 specifications 17 13 modulation keys 10 2 7 module source leveling 2 9 MSG annunciator 7 21 msg key 8 11 key 8 11 MULT annunciator 7 20 Index 9 multi pin connectors 7 8 15 multiplier frequency 1 7 N noise phase specification 17 12 noise declaration 18 3 non harmonic spurious specification 17 11 number of points 12 10 number pad keys 14 5 numeric entry 14 5 O off key markers 9 7 key 9 7 offset frequency 11 4 power 13 3 volts per GHz 15 16 OFFSET annunciator 7 21 operating conditions environmental 17 16 operating envir
127. off Also if M1 M2 Sweep mode is on it will be automatically turned off when this function is selected NOTE If the value of MI is greater than the value of M2 the values will be interchanged when they are put into the start and stop frequencies However the values stored in MI and M2 will not change Associated SCPI Commands SWEep MARKer XFER Transfers values of A 7 and M2 to the start and stop frequencies Associated 8350 Commands SHMP Transfers values of MI and M2 to the start and stop requencies 11 13 12 Sweep Keys Sweep Keys SWEEP MANUAL TIME a a SWEEP MODE pions TRIGS MODE POINTS TT SINGLE TRIG pg46ab Figure 12 1 The Sweep Group There are two sweep modes analog or ramp and stepped In analog sweep mode the duration of the forward going portion of the sweep is controlled and displayed In stepped sweep mode the dwell time per point is controlled and displayed The remainder of the cycle time depends on the trigger mode selected the number of bandswitches required the time required for each bandswitch and retrace settling times In addition there is a manual sweep mode in which the sweep position can be continuously adjusted over the start stop range as determined by the front panel manual control Manual sweep mode operates independently of whether analog or stepped mode is selected The instrument has only one sweep generator so both f
128. ommands RC lt n gt Restores the state of the instrument from register lt gt When this function is selected by pressing SHIFT RECALL the special functions menu is accessed When this key is pressed the last used special function is displayed in the form lt number gt lt function gt If no special functions have been accessed since the instrument was last preset the last used special function will default to 1CWCF AUTO The A Q keys or the front panel knob can be used to scroll through the list of available functions in the menu or the number of the desired special function can be entered from the keypad When the desired special function is displayed pressing the key causes the function to become the active parameter displayed in the MARKER SWEEP STATUS display Pressing the key returns the last menu item in the form lt number gt lt function gt 8 8 Instrument State Keys If the special function consists of discrete states i e On Off or Int Ext None then the J keys or the front panel knob must be used to select the desired state If the special function is a numerical value then the keypad may also be used to enter the value See Also Chapter 15 Special Functions 8 9 Instrument State Keys LOCAL Pressing this key returns the instrument to local front panel control from remote operation ADDRESS When this function is selected by pressing LOCAL the HP IB address of the sw
129. on of what constitutes a hardware problem is completely device specific This error message should be used when the device cannot detect the more specific errors described for errors 241 through 249 Hardware missing Indicates that a legal program command or query could not be executed because of missing device hardware for example an option was not installed Definition of what constitutes missing hardware is completely device specific Expression error Indicates that a expression program data element related error occurred This error message should be used when the device cannot detect the more specific errors described for errors 261 through 269 270 271 272 273 274 275 Error Messages SCPI Error Messages Math error in expression Indicates that a syntactically legal expression program data element could not be executed due to a math error for example a divide by zero was attempted The definition of math error is device specific Macro error Indicates that a macro related execution error occurred This error message should be used when the device cannot detect the more specific errors described for errors 271 through 279 Macro syntax error Indicates that a syntactically legal macro program data sequence according to IEEE 488 2 10 7 2 could not be executed due to a syntax error within the macro definition See IEEE 488 2 10 7 6 3 Macro execution error Indicates that a syn
130. on is selected by pressing SHIFT PRESET the current preset mode factory or user is shown in the right hand display of the sweeper The mode can be changed by pressing the keys or by MODE turning Factory User the front panel knob The preset mode choices are When is pushed the instrument is returned to a factory defined state See Table 8 1 in this section The right hand display shows SysFresType FACT When is pushed the instrument is returned to a user defined state The right hand display shows SysPresTupe LiSer Associated SCPI Commands SYSTem PRESet TYPEFACTory Sets the preset mode to factory SYSTem PRESet TYPE USER Sets the preset mode to user 8 5 Instrument State Keys SAVE Pressing the SAVE key stores the current instrument state into one of nine registers When this key is pressed the prompt message in the right hand display of the sweeper is SAVE Resa 77 When a digit lt n gt is pressed on the entry keyboard the display becomes SAVED Reg lt m gt and the instrument state 1S stored in that register Note that a unit key i e Hz s ENTER does not need to be pushed Successive numbers can be pushed to store the instrument into multiple registers Pressing 0 has no effect Associated SCPI Commands SAV lt n gt Saves the instrument state into register lt n gt Associated 8350 Commands SV lt n gt Saves the instrument state into register lt
131. on the mm wave source module NOVRAM If the error occurs at power up or instrument preset instrument will revert back to stand alone mode 300 Device specific error MM Head ALC Test Failed 906 The test checks the overall integrity of the mm wave source source module ALC circuitry at minimum settable power for the specific module 16 36 17 Specifications and Options Specifications and Options This chapter contains listings of the sweeper performance specifications and the mechanical electrical warranty and documentation options that are available for the HP 83750 series sweepers 17 2 Specifications Specifications describe the instrument s warranted performance over the 0 C to 55 C temperature range unless otherwise noted Specifications apply after the peak function has been performed Refer to PEAK in Chapter 14 for information on performing the peak function Supplemental characteristics indicated by italics are intended to provide information useful in applying the instrument but are not warranted parameters 17 3 Frequency Range HP 83751A B 2 GHz to 20 GHz HP 83752A B 10 MHz to 20 GHz Timebase Stability Standard 10 MHz timebase 10 ppm High stability timebase Option 1E5 Accuracy Calibration Aging rate amp Temperature effects Line voltage effects Aging rate 5 x 107 1 day 1 x 1077 year With temperature I x 10 C With line voltage 5 x 1
132. on the power sensor that corresponds to the frequency you set 6 Verify that the measured output power meets the instrument specification e If the measured value is less than the specified power turn the front panel knob until the value measured is at least the specified power level e Make sure that the UNLEV annunciator doesn t light If the annunciator does light this indicates an unleveled condition 7 Repeat steps 3 through 6 for the following setting s 2 5 GHz 1 5 GHz for HP 83752A B instruments only 50 MHz for HP 83752A B instruments only 1 9 If you have a problem If you have a problem while performing the operator s check check the following list of commonly encountered problems If the problem you have encountered is not here contact the nearest Hewlett Packard office for assistance If the self test fails The self test has failed if the message that appears when it is done is anything except Full Test FASSED Q Make sure all external cables are disconnected from the sweeper and run the self test again Q If the test still fails send the instrument to an HP service center for repair including a description of the failed test and any other error messages NOTE If you need to ship your sweeper remove the front handles if so equipped and use the original packaging or comparable 1 10 Performing the Operator s Check If the maximum leveled power check fails o Make sure t
133. onment 17 16 operator s check 1 2 11 option 1E1 17 19 option 1E4 17 19 option 1E5 17 19 option 1ED 17 19 option 1EE 17 20 connector 7 13 option OB2 extra operating documentation 17 22 option OB3 service documentation 17 22 options 17 19 documentation 17 22 electrical 17 19 mechanical 17 20 rack mount 17 20 warranty 17 21 option W30 three years return to HP service 17 21 option W50 five year return to HP calibration service 17 21 option W82 five year return to HP cal service 17 21 option W54 five year MIL STD calibration service 17 21 oscillator reference speciEcations 17 4 outline of manual vi output connector option 17 19 output power Index 10 specifications 17 7 output power calibration 13 9 output power check 1 8 output power level 13 3 output power switch 14 7 overview of sweeper iii P panel front and rear 7 2 30 peaking 1 5 14 10 peak power function 14 10 peak power tracking 1 5 performance specifications 17 2 period pulse function 10 5 permanent errors 16 2 phase noise single sideband specification 17 12 physical dimensions 17 17 pinout auxiliary interface 7 9 points 12 10 power flatness corrected 5 2 maximum leveled 17 7 maximum leveled check 1 6 minimum settable 17 8 output check 1 8 specifications 17 7 power accuracy specifications 17 8 power cable configurations 7 29 power cables 7 29 power calibration 13 9 power key 14 7 power keys 13 2 10
134. outines 15 18 Special Functions 14 FM SENSITIVITY 14 FM This function allows you to choose the FM sensitivity of your instrument either 6 MHz V or 20 MHz V The factory preset default value is SENSITIVITY une 6M NOTE The FM sensitivity will change from the nominal 6 or 20 MHz V when a millimeter source module is connected to the sweeper Refer to the table below for the actual FM sensitivity respective to the Source module used Table 15 2 FM Sensitivity When Using Source Modules Source Actual FM Sensitivity When Sweeper is Set to Module HP 83554 x2 40 MHZV HP 83555 x3 6 0 MHz V HP 83556 xd 60 MHZV HP 83557 x4 8 0 MHz HP 83558 x6 1 12 0 MHzV Associated SCPI Commands FM SENSitivity 6 MHz V Sets the FM sensitivity to 6 MBN FM SENSitivity 20 MHz V Sets the FM sensitivity to 20 MHN 15 19 Special Functions 15 This function allows you to select the instrument programming language LANGUAGE either SCPI or HP 8350 compatible NOTE Your language selection may or may not be retained if line power to the instrument is lost depending upon the rear panel language selection switch For information on setting the rear panel switch refer to the HP IB Switch section of Chapter 7 in this manual or refer to the nstallation and Quick Starr Guide for more detailed instructions on setting this switch Associated SCP Commands SYStem LANGuage SCPI S
135. p and dwell time It is a 1 2 5 data progression like 10 ms 20 ms 50 ms etc The SWEEP annunciator on the left FREQUENCY display is lit only during the time the instrument is actually sweeping NOTE The SWEEP annunciator is on all the time during fast sweeps and cycles on and off for slower Sweeps however it is not necessarily an accurate indicator of when the instrument is actually in a forward sweep 12 4 Sweep Keys TIME Associated SCP Commands SWEep MODE AUTO Turns autosweep on turns manual sweep of SWEep TIME AUTO ON Automatically sets the sweep time to the minimum value SWEep TIME AUTO OFF Sweep time is eff at current setting unless other parameter changes initiate a change SWEep DWEL1 lt num gt suffix Sets the dwell time to the desired value SWEep TIME lt num gt suffix Sets the sweep ime to the desired value Associated 8350 Commands ST lt num gt suffix Sets the sweep time to the desired value See Also Chapter 15 Special Function 4 STEP SWPTIME MANUAL Selecting this function by pressing SHIFT TIME turns the manual sweep mode on Depending on what parameter is being swept frequency power or sweep position can be varied manually over the limits defined by start stop power sweep etc The MAN annunciator is turned on To turn manual sweep mode off the TIME key must be pressed If frequency is being swept manually the current frequency is displayed as the ac
136. parameters with the units of hertz Therefore the numeric entries must be terminated using one of the four frequency unit keys GHz MHz or Hz When the entry is terminated the display shows the new value autoranged to the appropriate units For Start Stop and CF Span Sweep modes the frequency values are shown on the left and right sides of the FREQUENCY display in the format lt digits gt lt units gt Units can be either MHz or GHz Leading zeros are suppressed For CW mode the frequency is shown in the FREQUENCY display in the format lt digits gt lt units gt Units can be either MHz or GHz Leading zeros are suppressed Frequency Keys All the frequency functions share a common step size this includes the frequency of the markers A step that would move a frequency beyond its legal range is not taken allowing you to retrace your steps by stepping in the opposite direction The maximum and minimum frequencies are dependent upon the model number of your sweeper and are documented in the Specifications and Options chapter of this manual The instrument can only sweep up in frequency therefore the STOP frequency cannot be less than the START frequency If a start frequency is entered which is greater than the stop frequency then the stop frequency becomes equal to the start if a stop frequency is entered which is less than the start frequency then the start becomes equal to the stop Fre
137. ported if the error conditions still exist In the HP IB error queue the permanent errors are re reported after the message 0 No error is read using the SYSTem ERRor query or after the CLS command is executed The Error Event Queue As errors and events are detected they are placed in a queue This queue is Erst in Erst out If the queue overflows the last error event in the queue is replaced with error 350 Queue overflow Any time the queue overflows the least recent errors remain in the queue and the most recent error event is discarded The minimum length of the error event queue is 2 one position for the first error and one for the Queue overflow message Reading an error event from the head of the queue removes that error event from the queue and opens a position at the tail of the queue for a new error event if one is subsequently detected When all errors events have been read from the queue further error event queries shall return 0 No error Individual errors and events may be enabled into the queue The STATus QUEue ENABle command accomplishes this At STATus PRESet only errors are enabled This means that both SYSTem ERRor and STATus QUEue NEXI 1 report only errors unless the user changes the enable mask The error event queue shall be cleared when any of the following occur IEEE 488 2 section 11 4 3 4 e Upon power up e Upon receipt of a CLS command e Upon read
138. ption 17 19 RF output power specifications 17 7 rf power calibration 13 9 rf power key 13 3 right hand display 7 18 R LED annunciator 7 22 ROSC AUTO 15 13 ROSC SOURCE 15 14 rpg knob 7 26 S safety general considerations xiii safety and regulatory information 18 2 9 safety notes defined xii sales and service offices xi save key 8 6 key 8 6 save key disabling 15 24 save key enabling 15 24 save preset function 8 6 save recall register clearing 15 23 saving instrument states 8 6 saving user defined preset 8 6 scale volts per GHz 15 15 security 15 22 self test 1 3 selftest full 15 28 sensitivity FM 15 19 service documentation option OB3 17 22 SHIFT annunciator 7 20 shift key 8 3 key 8 3 shipping weight 17 18 single sideband phase noise specification 17 12 Index 13 single sweep mode 12 10 single trigger mode 12 7 key 12 10 size 17 17 slave to set the instrument to slave 15 27 slave sweeper 6 2 7 S LED 7 22 S LED annunciator 7 22 slope power 13 6 power specification 17 9 SLOPE annunciator 7 21 source match specification 17 10 source module connector option 17 20 source module interface connector 7 13 source module interface signal codes 7 13 14 source module leveling 2 9 13 8 source module use 4 2 source synchronization 6 2 7 SPAN annunciator 7 20 span key 11 9 key 11 9 special function key 8 8 special function representations xiv special functions 15 2
139. ptions available for the sweeper If these options were not ordered with the original shipment and are now desired they can be ordered from the nearest Hewlett Packard office using the part numbers included in each of the following descriptions Option 1CM Rack Mount Ordering Option 1CM adds a rack mount kit without handles The HP part Kit without Handles Option 1CP Rack Mount Kit with Handles Option AX2 Portable Handle and Front panel Cover number for the rack mount kit without handles is 5062 3977 Ordering Option 1CP adds a rack mount kit with handles The HP part number for the rack mount kit with handles is 5062 3983 Ordering Option AX2 adds tilt bail handle rubber bumpers rear feet and a protective front panel cover for Eeld test applications where portability is desired Complies with MIL T 28800E Class 5 Style D The HP part number for the portability kit is 5063 0092 17 20 Option W30 Two Additional Rears Return to HP Service Option W50 Five Year Return to HP Repair Service Option W92 Five Year Return to HP Calibration Service Option W54 Five Year MIL STD Calibration Service Specifications and Options Options Warranty Options There are Eve warranty options available for the sweeper These options are as follows This option extends the benefits of factory warranty to provide a total of three years of customer return repair service This option extends the benefits of factory war
140. quencies of markers which have Scrolling been turned on When a marker s frequency is displayed as the active parameter in the MARKER SWEEP STATUS area with pointers over the frequency value pressing the key will move the pointers to the Mn area of the display Then as the keys are pressed or as the front panel knob is turned the user can observe but not change the frequencies of all markers which are turned on To change the value of an observed marker the key must be pressed thereby making this marker become the active parameter with pointers over the frequency value Or while in the marker scrolling mode the user can also turn on a particular marker and make it become the active parameter by pressing the corresponding number 0 9 key 9 4 Marker Keys Associated SCPI Commands MARKer n STATe ON Same as pressing the MKA nj key MARKer n FREQuency Enters frequency of marker lt num gt suffix Associated 8350 Commands M lt n gt lt num gt suffix Same as pressing MKR nj key MA lt num gt suffix Used to set marker 0 MKR MODE When this function is selected by pressing SHIFT MKR n the current marker output format is displayed The mode can be changed to the next choice by pressing the J keys or by selecting SHIFT MK MODE again The marker output format choices are Amplitude In this mode the on markers appear as a rise of about 1 dB in the output power The displayed m
141. quency Stop Frequency ep Size Sweep Time Points Fixed 1 2 5 Sequence e If the Step Size for a particular parameter eads Frequency Step Size down with the arrow keys by whatever amount the frequency step size key This value is 100 MHz at factory prese ti the Step Size for a particular parameter with the arrow keys by whatever amount t value is 1dBat factory preset t eads Power Step Size the F addresses set from the front panel may or panel address switch is set Refer to the F ay not be retained after a Numeric Parameter Fixed Step Size t Settable Settable Power Step Si Settable Power Step Si Settable Power Step Si Fixed 1 2 5 Seque Fixed 1 2 5 Seque Fixed 0 1 dB GHz Fixed 1 2 5 Seque Settable Frequency Step Size Settable Frequency Step Size Fixed 1 2 5 Sequence hen the parameter will be stepped up or has been set to using the STEP SIZE the parameter will be stepped up or down e power step size has been set to using the STEP SIZE key This ine power cycle depending on how the rear ont Rear Panel chapter for information on setting this switch 14 3 Entry Keys When this key is pressed the value of the frequency or power step size becomes the active parameter and is shown in the MARKER SWEEP STATUS display Frequency or power is displayed depending on whether a key in the FREQUENCY or the POWER area was last pre
142. quency Keys OFFSET Pressing the START key puts the instrument into the swept frequency mode and allows you to change the start frequency This key puts the instrument into sweep mode and displays the start and stop frequencies on the FREQUENCY display The START and STOP annunciators are turned on when this key is pressed Pressing makes the start lower frequency the active parameter Attempting to set the start frequency above the stop frequency causes the stop frequency to increase The start frequency is always coupled to a previously set CF and Span by the equation START CF SPAN 2 Associated SCPI Commands FREQuency MODE SWEep Sets the instrument to sweep mode FREQuency STARt lt num gt suffix Sets the start frequency to the desired value Associated 8350 Commands FA lt num gt suffix Sets the start frequency to the desired value When this function is selected by pressing SHIFT _ START the frequency offset becomes the active parameter displayed in the MARKER SWEEP STATUS area If the offset frequency is not zero the OFFSET annunciator is turned on The values of frequency shown in the FREQUENCY display are in accordance with the equation Displayed Frequency Actual RF Frequency Multiplier Off set The frequency offset is displayed in the format Of f s lt s ian gt lt dis it 5 gt lt units gt Units can be kHz MHz or GHz A positive or negative value can be entered Freq
143. r on standard instruments The connector metes with a type N male connector on option TED instruments The RF OUTPUT connector will be found on the rear panel of sweepers with option 1E4 11 The front panel knob is used to increase or decrease active parameters under the pointers and is used in manual frequency and power sweeps 12 The displays show the current values of Sweeper parameters as well as the status of many of the sweeper functions The left hand display shows the current frequency status whether it be swept or CW The right hand display shows current marker modulation end Sweep status parameters when they are Selected as well as the current output power level The annunciators that appear below the parameters are only visible when their associated function is active For example the STEP annunciator will only be visible when operating in stepped sweep mode 13 The Frequency keys are used to set the various frequency parameters for the sweeper Swept frequency selections include Start Stop CF Span and Marker 1 Marker 2 functions Continuous Wave CW mode may also be selected for outputting single frequencies 14 The PRESET key is used to put the instrument into a known state There are two preset modes the factory mode and a user defined mode 15 The key changes the function of some of the kevs When vou press the key and then press another key the sweeper pe
144. range Test Patch Value Out of Range is the error message When the key is pressed the error message is displayed in the leftmost display The entire message is returned by the HP IB query SYSTem ERRor The error message contains the following parts a SCPI Error Number The standard SCPI error number 222 in the example usually differs from the manual error number because the manual error number is unique for every possible message Standard SCPI error numbers are always negative except for 0 No error If there is no standard SCPI error number for a message the manual error number replaces it in the error message a SCPI Error Message The SCPI error message is Data out of range in the example a Detailed Description All information after the semicolon is a detailed description of what exactly caused the error In the example Test Patch Value Out of Range tells you that the user has entered a Self Test Patch with upper or lower limit values greater than allowed If no detailed description exists it will be omitted from the message 16 5 Error Messages Error Messages list e Action Required The text that appears below each error message listing contains corrective actions that should be followed in order to correct the error condition Note that the action required is never shown in the sweeper display 16 6 SCPI Error Messages Command Error An lt error event number gt in the range
145. ranty to provide a total of Eve years of customer return repair service This option provides Eve years of HP calibration service at HP customer service centers This option provides Eve years of MIL STD calibration at HP customer service centers 17 21 Option OB2 Extra Operating Documentation Option OB3 Service Documentation Option 1BN Certification Option 1BP Certification with Data Specifications and Options Documentation Options There are two documentation options available for the sweeper If a documentation option was not ordered with the original shipment and is now desired it can be ordered from the nearest Hewlett Packard office using the part numbers included below If Option OB2 is ordered the shipment includes an extra copy each of the HP 83751A B and HP 83752A B Synthesized Sweepers User s Guide HP part number 83750 90004 HP 83751A B and HP 83752A B Synthesized Sweepers Programming Guide HP part number 83750 90005 and the HP 83751A B and HP 83752A B Synthesized Sweepers Installation and Quick Start Guide HP part number 83750 90006 If Option OB3 is ordered the shipment includes the HP 83751A B and HP 83752A B Synthesized Sweepers Service Guide HP part number 83750 90003 Note that this document is not shipped with the sweeper if Option OB3 is not ordered Certification Options Ordering Option 1BN provides MIL STD 45662A certification Ordering Option 1BP provides MII STD 45662
146. re is no physical separation between them Normally one blank space is inserted between the left and right Eelds When some features are accessed however all 24 characters of the right display can be used The left Eeld is labelled MARKER SWEEP STATUS and is used to show a variety of information including marker frequencies sweep time and general instrument status Sixteen characters are reserved for this Eeld including any units displayed The right Eeld is labelled POWER and displays the power level in dBm It is seven character cells wide Exed format ss NOTE When operating the sweeper in a secure environment the display can be blanked so that the sweeper parameters and status cannot be viewed For more information refer to the Special Functions chapter of this manual Front Rear Panel Display Annunciators 10 0dBm r te LJ CJ CI MOOOC3 OOOO Sooo ANNUNCIATORS pq41lab Figure 7 7 Sweeper Display and LED Annunciators The front panel annunciators show the status of several of the sweeper functions and settings Refer to Figure 7 7 Notice that there are two types of annunciators display and LED A display annunciator is not visible if its associated function is not active or selected For example if external pulse modulation is currently selected the EXTMOD annunciator will be lit otherwise it will not be visible The display annunciators
147. requency sweep and power sweep use the same sweep parameters The SWEEP annunciator on the left FREQUENCY display is lit only while the instrument is actually sweeping 12 2 Sweep Keys NOTE The SWEEP annunciator is on all the time during fast sweeps and cycles on and off for slower Sweeps however it is not necessarily an accurate indicator of when the instrument is actually in a forward sweep Sweep Keys Pressing the TIME key displays the sweep time and allows it to be changed If this key is pressed when analog sweep mode is on the time for the forward portion of the sweep becomes the active parameter and is shown in the MARKER SWEEP STATUS display If manual sweep mode is on it will be turned off If this key is pressed when stepped sweep mode is on the dwell time per point becomes the active parameter and is shown in the MARKER SWEEP STATUS display The minimum value of sweep time which may be entered is a function of the desired frequency range The last entered value of sweep time is compared to this limit even after the frequency range is readjusted If the entered value is less than the limit then the limit value is used and if the entered value is greater than the limit then the entered value is used The Sweep time is displayed as SueepTime lt digits gt lt units gt The dwell time is displayed as bwellTime lt digits gt lt units gt Units can be either ms or s Step size cannot be set for swee
148. rforms the function printed in blue above the key Sweeper rear panel features are depicted and described in detail in Chapter 7 Front Rear Panel in this manual In This Book This book is divided into two sections the task reference and the dictionary reference These sections are subdivided into chapters The task reference section identified by light blue tabs provides step by step instructions for many of the tasks that you perform with your sweeper The chapters in the task reference section are as follows Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Performing the Operator s Check contains a procedure for assuring you that your instrument is operating correctly x Externally Leveling the Sweeper provides the steps necessary to externally level your sweeper with detectors couplers splitters power meters and source modules Generating a Stepped Sweep explains how to set up the instrument to generate a stepped sweep Generating a Millimeter Signal illustrates the setups for using a millimeter head with your option 1EE sweeper Creating User Flatness Arrays explains how to create user flatness correction arrays which calibrate the power level at a remote test port Operating a Master Slave Setup shows the steps necessary to configure two sweepers for two tone measurement capabilities The dictionary reference section identified b
149. rror message 0 should be used when the device cannot detect the more specific errors described for errors 221 through 229 Settings conflict Indicates that a legal program data element was parsed but could not be executed due to the current device state See IEEE 488 2 6 4 5 3 and 11 5 1 1 5 Data out of range Indicates that a legal program data element was parsed but could not be executed because the interpreted value was outside the legal range as defined by the device See IEEE 488 2 11 5 1 1 5 Too much data Indicates that a legal program data element of block expression or string type was received that contained more data than the device could handle due to memory or related device specific requirements Illegal parameter value Used where exact value from a list of possibilities was expected Out of memory The device has insufficient memory to perform the requested operation 16 15 Error Messages SCPI Error Messages 226 230 231 240 241 260 16 16 Lists not same length Attempted to use LIST structure having individual LIST s of unequal lengths Data corrupt or stale Possibly invalid data new reading started but not completed since last access Data questionable Indicates that measurement accuracy is suspect Hardware error Indicates that a legal program command or query could not be executed because of a hardware problem in the device Definiti
150. rument to CW mode FREQuency CW FIXed AUTO ON Turns the CWycenter frequency coupling on FREQuency CW FIXed AUTO OFF Turns the CW center frequenq coupling off FREQuency CWIFIXed lt num gt suffix Sets the CW frequency to the desired value Associated 8350 Commands CW lt num gt suff ix Sets the CW frequency to the desired value 11 10 Frequency Keys SWEPT CW Operates the same as pressing the key except that sweep mode is turned on and the 0 to 10 V ramp is available at the SWEEP OUT BNC connectors on the front and rear panels This mode allows power sweep and power slope in CW mode Associated SCPI Commands FREQuency MODE SWEep Sets the instrument to sweep mode FREQuency CW FIXed AUTO ON OFF Tums CW CF coupling an or off FREQuency CW FIXed lt num gt suffix Sets CW to the desired frequency FREQuency SHCW lt num gt suffix Sets swept CW to desired frequency Associated 8350 Commands SHCW lt num gt suff ix Turns swept CW on 11 11 Frequency Keys M1 gt M2 SWEEP Pressing the key turns markers MI and M2 on and sweeps between the two markers This function toggles marker sweep mode on and off If marker sweep mode is off when this key is pressed the mode is turned on and the M1 M2 SWP LED annunciator is turned on Markers MI and M2 are turned on if they were previously off and the instrument sweeps from a start frequency of marker MI to the stop frequency of marker M2 NO
151. say FullTest PASSED refer to the Troubleshooting chapter of the Service Guide Associated SCPI Commands TST Performs a u self rest DIAGnostic TEST FULLtest Executes the full self test DIAGnostic TEST FULLtest REPort This query command will return a single test and its data This test is the most probable z lre test in the following format lt name gt lt status gt lt minValue gt lt actualData gt lt maxValue gt 15 28 16 Error Messages Error Messages If an error condition occurs in the sweeper it will always be reported to both the front panel and HP IB error queues These two queues are viewed and managed separately The key is used to view the contents of the front panel error queue The HP IB query SYSTem ERRor is used to view the contents of the HP IB error queue If there are any error messages in the front panel error queue the front panel MSG annunciator will be lit Pressing the key repeatedly until the MSG annunciator turns off will empty the front panel error queue The key has no affect on the HP IB error queue Emptying the HP IB error queue has no affect on the front panel queue therefore it will not affect the MSG annunciator There are some special error types that are called permanent errors Permanent errors remain in the error queues until the error condition is cleared Pressing the key will empty the front panel error queue but the permanent errors will be re re
152. sing SHIFT sicte tric sets the number of points in a stepped sweep When this key is pressed the number of points becomes the active parameter and is displayed in the MARKER SWEEP STATUS display in the form SweepPoi mt s HHH The acceptable range of values is 2 to 1601 The total forward sweep time in stepped sweep mode can be computed from the equation SweepTime Number of Points DwellTime Switching Time where Switching Time is typically 7 ms 8ms GHz step Associated SCPI Commands SWEep POINts lt numeric value gt Sets the number of points to the desired value 12 10 13 Power Keys Power Keys pg47ab Figure 13 1 The Power Group The power functions are displayed in the right hand display either in the MARKER SWEEP STATUS area or in the POWER area as described for each function Units are not autoranged and are given below for each function POWER LEVEL changed OFFSET Power Keys POWER LEVEL Pressing this key displays the current power level and allows it to be This function makes the power level the active parameter displayed in the POWER area The units are dBm If power sweep mode is engaged the power at the start of the sweep is displayed If power slope mode is engaged the power that would be present at 0 Hz i e without frequency slope correction is displayed If RF is turned off the power level that would be present if RF were turned on is displayed The display format
153. ssage is displayed ZERO Fravy ENTER e If you do not want the frequencies zeroed press lt This key takes you back one level to the 444 ZERO FREQ selection e If you do want all of the displayed frequencies to be set to 0 00000000 Hz press Hz s ENTER To return the display to show frequencies either press PRESET or cycle the power Associated SCPI Commands SYSTem SECurity ZERO ON Sets the requency to zeros SYSTem SECurity ZERO OFF Sets the instrument to display frequeng 15 22 Special Functions 17 SECURITY 401 CLEAR This function lets you clear and initialize the entire content of RAM MEMORY 0 all zeros This clears all of the save recall registers The number of times that memory is cleared and the RAMs are set to zeros is set by 482 CLEMEN COUNT After the RAMs are cleared the instrument is set to preset conditions When you press SHIFT SPECIAL Hz s ENTER the following message is displayed 1r mem yEHTER e If you do not want the save recall registers cleared press lt The message Memory Hot C lear appears briefly and you are returned to the 441 CLEAR MEMORY selection e If do want all of the save recall registers to be cleared by initializing the RAMs to all zeros press Hz s ENTER Associated SCPI Commands SYSTem SECurity CLEar Sets the RAMs to zeros and presets the instrument MEMory RAM INITialize ALL Sets the AAMs to ros and presets the instrument 15 23 Spe
154. ssed If the active parameter is not a frequency or power parameter the display will read Ho Step Size The display format is Step lt number gt lt units gt where lt units gt identifies both the type and magnitude of the step For frequency step size the possible units are Hz kHz MHz and GHz For power step size the only possible unit is dB If the keys are used while step size is the active parameter the step size will be increased or decreased in a 1 2 5 sequence Associated SCPI Commands FREQuency STEP INCRement Sets the frequency step siz to be lt num gt suffix used for frequency parameters fexcept SPAN Setting this value causes FREQ STEP AUTO OFF POWer STEP INCRement lt num gt DB Sets the power step siz to be used for power parameters Setting this value causes POWer STEP AUTO OFF 14 4 Entry Keys Number Pad Keys Number Pad _ The number pad comprises the digit keys 0 through 9 the decimal point Keys the negative sign and the backspace I When building a number the backspace key removes the last character in the string The negative sign when legal toggles the sign of the number being entered NOTE When numeric keys are pressed the display shows the new value of the active parameter as it is being entered however the units are not displayed and the actual parameter value is not updated until a unit key or the Hz s ENTER key is pressed Entry Ke
155. step 15 9 stepped 3 2 sweep time key 12 4 swept cw 11 11 swept frequency mode 11 4 11 6 switch line power 7 27 SWPTIME AUTO 15 8 SWPTIME LLIM 15 10 synchronization source 6 2 7 system security 15 22 T table of sales and service offices xi table of step sizes 14 3 task reference vi terminator keys 14 6 three years return to HP service option W30 17 21 timebase option 17 19 timebase stability specification 17 4 key 12 4 time standard specifications 17 4 T LED 7 22 T LED annunciator 7 22 trigger single 12 10 TRIGGER INPUT connector 7 6 trigger mode key 12 7 TRIGGER OUTPUT connector 7 6 TRIG MODE t key 12 7 two tone operation 6 2 7 type N connector option 17 19 U UNCPLD annunciator 7 21 unit keys 14 6 UNLEV annunciator 7 21 unleveled check 1 6 unleveled mode 13 7 UNLOCK annunciator 7 21 UNLOCKED FM annunciator 7 22 UNLOCKED FM LED 7 22 user flatness 5 2 13 10 specifications 17 9 user preset mode 8 5 Index 16 user s guide outline vi V ventilation requirements 18 9 V GHz OFFSET 15 16 V GHz SCALE 15 15 VOLTS GHz OUTPUT connector 7 6 volts per GHz offset 15 16 scale 15 15 W warmup time required 17 16 warning notice defined xii warranted performance 17 2 warranty ix watranty options 17 21 warranty service 1x weight 17 18 width pulse 10 6 Z Z AXIS BLANK MKRS connector 7 7 zeroing the frequency display 15 22 z mod markers 9 5 Index
156. structions in the manual The CE93 mark shows compliance with European Community 1993 standards The CSA mark is the Canadian Standards Association safety mark The ISM1 A mark stands for Industrial Scientific and Medical Group 4 Class A xii WARNING WARNING WARNING CAUTION CAUTION CAUTION General Safety Considerations Before this instrument is switched on make sure it has been properly grounded through the protective conductor of the ac power cable to a socket outlet provided with protective earth contact This is a Safety Class I product provided with a protective earthing ground incorporated in the power cord Any interruption of the protective grounding conductor inside or outside the instrument or disconnection of the protective earth terminal can result in personal injury No operator serviceable parts inside the instrument Refer servicing to qualified personnel To prevent electrical shock do not remove covers Any adjustments or service procedures that require operation of the instrument with protective covers removed should be performed only by trained service personnel For continued protection against fire hazard replace line fuse only with the same type and rating F 6 3A 250V The use of other fuses or material is prohibited If this instrument is used in a manner not specified by Hewlett Packard Co the protection provided by the instrument may be unpaired Always use the three pronged
157. sts the power tracking When you run peak power tracking or autotracking the instrument optimizes its output power over the sweeper s full frequency range by tracking the output filter with the RF source output NOTE Peak power tracking takes approximately 1 to 3 minutes to complete and can be aborted by pressing PRESET if necessary To check the maximum leveled power 1 Before checking maximum leveled power make sure the RF OUTPUT is either connected in a 50 Q system or has a load on it such as a power sensor or attenuator 2 Press PRESET 3 Press Power LeveL and enter the specified maximum leveled power for your instrument For an HP 83752B set the power to the specification for lt 2 GHz Instrument Maximum Leveled Power Specification H P 83751A 83752A 10 dBm 17 dBm HP 3752B lt 2 GHz 16 dBm gt 2 GHz 17 dBm Option 1E1 step attenuatorl reduce by 1 dB 4 Make sure the UNLEV annunciator is not lit at any time The UNLEV annunciator is located in the POWER display area See Figure 1 1 5 Press TIME Hz s ENTER to change the sweep time to 2 seconds 6 Press sincLe Trig and make sure the UNLEV annunciator does not come on at any point during the sweep If the annunciator comes on it indicates the instrument is unleveled The UNLEV annunciator is located in the POWER display area See Figure l l 1 6 Performing the Operator s Check To check the maximum leve
158. t no action is taken because the instrument does not have this feature 178 Expression data not allowed RP RF Blanking Is Always ON 307 Indicates that the command RP was detected while the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 178 Expression data not allowed SHCF No Coarse CW Resolution Allowed 308 Indicates that the command SHCF was detected while the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 178 Expression data not allowed SHDF No Fine CW Resolution Allowed 309 Indicates that the command SHDF was detected while the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 178 Expression data not allowed SHM2 SHM3 No Counter Interface 310 Indicates that the commands SHM2 or SHM3 were detected while the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 311 312 Error Messages SCPI Error Messages 178 Expression data not allowed SHSS No Default Step Sizes Allowed 311 Indicates that the command SHSS
159. tactically legal macro program data sequence could not be executed due to some error in the macro definition See IEEE 488 2 10 7 6 3 Illegal macro label Indicates that the macro label defined in the DMC command was a legal string syntax but could not be accepted by the device See IEEE 488 2 10 7 3 and 10 7 6 2 for example the label was too long the same as a common command header or contained invalid header syntax Macro parameter error Indicates that the macro definition improperly used a macro parameter placeholder See IEEE 488 2 10 7 3 Macro definition too long Indicates that a syntactically legal macro program data sequence could not be executed because the string or block contents were too long for the device to handle See IEEE 488 2 10 7 6 1 16 17 Error Messages SCPI Error Messages 276 277 278 16 18 Macro recursion error Indicates that a syntactically legal macro program data sequence could not be executed because the device found it to be recursive See IEEE 488 2 10 7 6 6 Macro redefinition not allowed Indicates that a syntactically legal macro label in the DMC command could not be executed because the macro label was already dehned See IEEE 488 2 10 7 6 4 Macro header not found Indicates that a syntactically legal macro label in the GMC query could not be executed because the header was not previously defined Error Messages SCPI Error Messages Device
160. tep In this mode stepped sweep mode is enabled After Sweep Cont dwelling at each point the sweep steps to each new point as Trig soon as possible The STEP annunciator is turned on The display shows Sweep St ep Cont NOTE Stepped sweep mode cannot be used with the alternate sweep mode ALT r or External Trigger mode Step In this mode stepped sweep mode is enabled After Sweep External dwelling at each point the sweep steps to each new point Trig on a positive edge of the TTL compatible rear panel external TRIGGER INPUT There will be some delay between the positive edge and when sweep actually starts typically about 2 ms The STEP annunciator is turned on The display shows Sweep St ep Ext Sweep Keys TRIG MODE 11 Associated SCPI Commands SWEep GENerationANALog Sets the sweep made fa analog SWEep GENerationSTEPped Sets the sweep mode to stepped SWEep TRIGger SOURce IMMediate Sets the instrument to internal amp trigger as soon as possibb after the last trigger SWEep GENerat ionSTEPped Sets the sweep mode to stepped SWEep TRIGger SOURce EXTernal Sets the instrument to externally trigger a step Sweep Keys SINGLE TRIG Pressing the sincte tric key triggers a single sweep in the instrument If the trigger mode was not previously set to single trigger pressing this key will automatically set the trigger mode to single This function selected by pres
161. ter special function number 6 If Option 1E4 is ordered the RF OUTPUT connector will be moved to the rear panel If Option 1E5 is ordered the sweeper is shipped with a 10 MHz temperature controlled crystal reference oscillator for increased frequency accuracy and stability When Option 1E5 is installed the sweeper must be connected to ac power to keep the reference oscillator at operating temperature If the reference oscillator has not been connected to ac power the oven is cold the sweeper requires 30 minutes to warm up If Option 1ED is ordered the RF OUTPUT connector is a ruggedized type N female connector instead of the standard 3 5 mm connector When this option is installed output power characteristics above 18 GHz are typical and not warranted 17 19 Option 1EE Source Module Connector and Extension Cable Specifications and Options Options If Option IEE is ordered source module interfacing hardware is added This includes a connector on the rear panel and an extension cable that allows the mm wave module to be positioned in front of the sweeper This option provides direct frequency and power level control of HP 83550 series millimeter wave source modules from the front panel of the sweeper HP 83751A and HP 83752A sweepers require external amplification to drive source modules High power sweeper models HP 83751B and HP 83752B can directly drive source modules Mechanical Options There are three mechanical o
162. the last time the line power was turned on Full Test PASSED Full self test has been performed and passed all tests gt HARRAH Full self test has been performed and test XXXXXX was either the only test that failed or was the most significant failure 3 Press the key again to initiate the self test routine While the self test routine is running a Wa it Message will appear in the MARKER SWEEP STATUS display 1 3 Performing the Operator s Check To run the full self test 4 When the self test routine is finished a message will appear in the MARKER SWEEP STATUS display If the message does not say Ful 1 Test PASSED refer to the section entitled If You Have a Problem at the end of this chapter The full self test is actually a series of tests performed to check different instrument functions If the sweeper fails just one test the display shows the title of the failed test If the instrument fails more than one test the test title shown is the most significant failure CAUTION To run peak power tracking 1 Before running peak power tracking make sure the RF OUTPUT is either connected in a 50 Q system or has a load on it such as a power sensor or attenuator For optimum power at all frequencies do not run peak power tracking with a millimeter head connected to the sweeper 2 Press PRESET PEAK The MARKER SWEEP STATUS display shows the progression of the sweep as the instrument adju
163. tive parameter in the MARKER SWEEP STATUS display area in the form MAH lt digits gt lt units gt Units can be either GHz or MHz If frequency is not being swept the sweep position is displayed as the active parameter in the MARKER SWEEP STATUS area in the form AHS 1 ek In power sweep mode the manual power level is displayed as the active parameter in the MARKER SWEEP STATUS area in the form MAH H AdBm Sweep Keys SWI FRI SWEep MANual RELative lt num gt Associated SCP Commands Eep MODE MANual EQuency MANual lt num gt suffix Sets the instrument to manual sweep mode Sets the manual frequency to the desired value Used for power sweep Associated 8350 Commands SM lt num gt suffix Sets the instrument to manual sweep TRIG MODE Sweep Keys TRIG MODE 1 Pressing the tric moot key displays the current trigger mode and allows it to be changed When this key is pressed the current trigger mode is displayed in the MARKER SWEEP STATUS display area The mode can be changed to the next choice by pressing the mre move Key again or by pressing the 1 W keys The trigger mode choices are Continuous In this mode the sweep is initiated as soon as possible after Trigger the last sweep The displayed message is Sup Trig Cont External In this mode the sweep is initiated by a positive edge of the Trigger TTL compatible rear panel external TRIGGER INPUT There will be
164. tor is turned on The displayed message is Pulse Scalar The rise and fall times of the RF envelope are approximately 1 pS in this mode Modulation Keys PULSE MODE Associated SCPI Commands PULM SOURce INTernal Sets the pulse mode to nternal PULM SOURce SCALar Sets the pulse mode to scalar PULM SOURce EXTernal Sets the pulse mode to external PULM SOURce SQ1K Sets the pulse mode to 1 kHz Square wave PULM STATe ON Turns the selected pulse mode on PULM STATe OFF Turns pulse modulation off Associated 8350 Commands PM1 Turns pulse modulation on PMO Turns pulse modulation off MD1 Tums square wave modulation on MDO Tums square wave modulation off PERIOD When this function is selected by pressing SHIFT puise move the pulse period becomes the active parameter This parameter applies to the internal pulse mode Its value is shown in the MARKER SWEEP STATUS display in the format Period lt digits gt lt units gt Units can be us orms The range of accepted values is 2 s to 65 53 ms Resolution is 1 ys If necessary the pulse width will be decreased to be 1 ys less than the entered period value In other words the period must always be gt width 1 ps Associated SCPI Commands PULSe PERiod lt num gt suffix Sets the pulse period to the desired value Modulation Keys am vone WIDTH Pressing the am move JT key displays the current AM mode and allows it to be changed
165. ts and then returns to the last state before power was turned off The current firmware revision language mode and HP IB address are displayed in the 16 character MARKER SWEEP STATUS area for example Fw A 01 00 SCPI 19 8 2 Instrument State Keys The key causes the secondary function of any key pressed directly after it to be executed When the key is pressed the SHIFT annunciator will be visible in the left hand display The next key that is pressed after the key will execute the function that is indicated by the blue text that is above the key As an example note that ADDRESS appears in blue text directly above the key Viewing and selecting the HP IB address of the instrument is the secondary function of the LOCAL key Pressing LOCAL will enable the HP IB address viewing and selecting mode If a key with no alternate function is pressed after pressing the key the SHIFT annunciator will be canceled from the display and no action will be taken by the instrument If you press the SHIFT key accidentally pressing it again will cancel it without altering sweeper operation 8 3 Instrument State Keys The PRESET key sets the sweeper to a known state either the factory preset condition or a user defined preset condition The factory preset conditions are shown in the following table User defined preset conditions are discussed later in this section and factory preset conditions for special functions are
166. tt Packard from another country Hewlett Packard warrants that its software and firmware designated by Hewlett Packard for use with an instrument will execute its programming instructions when properly installed on that instrument Hewlett Packard does not warrant that the operation of the instrument or software or firmware will be uninterrupted or error free LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance NO OTHER WARRANTY IS EXPRESSED OR IMPLIED HEWLETT PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE EXCLUSIVE REMEDIES THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES HEWLETT PACKARD SHALL NOT BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY Assistance Product maintenance agreements and other customer assistance agreements are available for Hewlett Packard products For any assistance contact your nearest Hewlett Packard Sales and Service Office Refer to the list of Sales and Service Offices on the following page IN THE UNITED STATES California Hewlett Packard Co 1421
167. tup 2 2 2 0404 6 3 Sweeper Connectors Front Panel 2 2 7 3 Sweeper Connectors Rear Panel 2 7 4 3 Auxiliary Interface Connector 2 7 8 4 HP IB Connector and Cable 2 7 10 Interface Signals of the Source Module Connector 7 13 Sweeper Display 0 20 04 7 16 Sweeper Display and LED Annunciators 7 19 HP IB Address Switch Settings 02 7 23 Instrument Language Switch Settings 2 7 24 Clear Register Contents Settings 7 24 The Sweeper Line POWER Switch 2 2 7 27 Power Cable and Line Mains Plug Part Numbers 7 30 Instrument State Group 2 a 8 2 The Markers Group 2 04 9 2 The Modulation Group 04 10 2 The Frequency Group 11 2 The Sweep Group 2084 12 2 The Power Group ooo a 13 2 lt The Entry Groupe x qea yp hy ike Ba a AY 14 2 The Instrument Group 4 15 2 Typical Swept Frequency Accuracy 100 ms sweep ramp INOUE 25 eMart s se aed ae eee eho Mine ce E de 17 6 Typical Maximum Available Power 2 17 7 Contents 7 Contents 17 3 Typical Phase Noise 10 GHz Carrier 17 4 Dimensions Contents 8 Tables 7 1 Pin Description of the Auxiliary Interface 7 9 8 1 Factory Preset Conditions 8 4 14
168. uage Switch Settings 2 Register Contents Are Saved Through An AC Power Cycle a Register Contents Are Cleared a Through An AC Power Cycle q9g423ab Figure 7 10 Clear Register Contents Settings See Also Instrument State Keys Special Functions Front Rear Panel HP IB Lang Address Switch For information on setting the HP IB address from the front panel of the sweeper For information on setting the language from the front panel of the sweeper 7 25 Knob The front panel knob is used to increase or decrease parameter values Pointers vyv over a parameter or numeric value in the display indicate that the function is active and its value will be increased or decreased when knob is rotated The front panel knob is used to give an analog feel to the setting of the values Any of the values that can be set through the numeric entry pad or the step keys can also be set using the knob However the rate at which the active parameter varies for a given amount of knob rotation is dependent on the parameter that is being controlled If ENTRY OFF SHIFT Hz s enter has been enabled the pointers will disappear from the display and rotating the knob will have no affect on the sweeper parameters until another function key is pressed Equivalent SCPI Commands The equivalent SCPI commands for knob rotation are SYST KEY 6 1 which simulates clockwise knob rotation and S
169. uency offset can be turned off by selecting OFFSET again or by setting the offset to 0 Hz Frequency Keys Associated SCPI Commands FREQuency OFFSet lt num gt Sets the frequency offset to the desired value FREQuency OFFSet STATe ON Turns the frequency offset on FREQuency OFFSet STATe OFF Turns the frequency offset off Associated 8350 Commands SHFB lt num gt suffix Sets the frequency offset to the desired value 11 5 Frequency Keys Pressing the STOP key puts the instrument into the swept frequency mode and allows you to change the stop frequency This key puts the instrument into sweep mode and displays the start and stop frequencies on the FREQUENCY display The START and STOP annunciators are turned on The stop upper frequency becomes the active parameter Attempting to set the stop frequency below the start frequency causes the start frequency to decrease The stop frequency is always coupled to a previously set CF and Span by the equation STOP CF SPAN 2 NOTE Although the sweeper is only specified to 20 GHz the stop frequency can be set as high as 20 5 GHz Associated SCPI Commands FREQuency MODE SWEep Sets the instrument to sweep mode FREQuency STOF lt num gt suffix Sets the stop frequency to the desired value Associated 8350 Commands FB lt num gt suffix Sets the stop frequency to the desired value Frequency Keys MULT Selecting this function by pressing GHIFT
170. ulation is enabled the INT MOD annunciator is turned on 10 3 PULSE MODE T Modulation Keys Pressing the PULSE move key displays the current pulse mode and allows it to be changed if desired When this key is pressed the current Pulse Mode is shown in the MARKER SWEEP STATUS display The mode can be changed to the next choice by pressing the purse move J key again or by pressing the D keys The pulse mode choices are Pulse Mod Off Internal Pulse External Pulse 1 kHz Square Wave Scalar 10 4 In this mode pulse modulation is turned off Any modulation related annunciators INT MOD or EXT MOD are turned off The displayed message is Fulse Mod Off In this mode pulse modulation is controlled by an internal pulse generator For CW mode below 500 MHz or Swept mode below 2 GHz minimum leveled pulse width is degraded The INT MOD annunciator is turned on The displayed message is Fu 1 se I mternal In this mode pulse modulation is from the rear panel PULSE IN OUT BNC connector For CW mode below 500 MHz or Swept mode below 2 GHz minimum leveled pulse width is degraded The EXT MOD annunciator is turned on The displayed message is Fu 1 se it erna 1 In this mode pulse modulation is a 1 kHz square wave The INT MOD annunciator is turned on The displayed message is Pulse 1 kHz Sq In this mode pulse modulation is a 27 778 kHz square wave for use with scalar analyzers The INT MOD annuncia
171. umerical 13 FW REVISION Factory Preset Condition Numer i On Off Int Ext None None or Int Numerical 0 50V GHz 0oy Aut o kosz Info only cannot be changed Co tos a ay N Not in use E ee a FULL SeurTsT Current test resus sews jsenvice fo o o o mo jcauerarion meoo PP macnosres imo d The footnotes for Table 15 1 are listed on the following page e This fu ction only works in CW or manual sweep mode t This special function only operates with sweepers that have Option 1 1 t For instruments without Opt For instruments wit Optio This is the value set when shi power on the instrument tty e selected value will be di sweeper See FM SENSITVTY late ity is is the value set when s instrument preset Changes depending on how the rear panel la switch setting information These special functions provi ion 1E5 1E5 ferent the ipped fro ade via t de access the displayed value if you have a millimeter source this chapter Special Functions pped from the factory If changed it will not be altered by presetting or cycling the line odule connected to your the factory Changes made via this special function will be retained through en is special function may or may not be retained throug guage switch is set Refer to the chapter ent
172. value of 0 dBm which is well within the range of the ALC This gives a margin for AM or other functions that vary the power level The ALC level should be greater than or equal to 10 dBm for A model sweepers standard power and 5 dBm for B model sweepers high power Adjust the attenuator so that the ALC level is within the specified power range of your sweeper For an A model sweeper this is achieved by using attenuation equal to the tens digit of output power Example for a desired sweeper output power of 43 dBm do the following 1 Press SPECIAL 2 Set the attenuator to 40 dB press See also To obtain flatness corrected power refer to the chapter entitled Creating User Flatness Correction Arrays later in this manual 2 6 Leveling with a power meter Leveling with a power meter is similar to leveling with a diode detector 1 Set up the equipment as shown in Figure 2 3 Be sure to set the power meter to the correct manual range mode for the output power setting at which you are leveling SYNTHESIZED SWEEPER LEVELED OUTPUT RF OUTPUT lt gt POWER SPLITTER E 3 OR RECORDER DIRECTIONAL COUPLER OUT POWER METER POWER SENSOR T e pg418ab Figure 2 3 leveling with a Power Meter 2 Press ALC move ft repeatedly until the MARKER SWEEP STATUS display shows ALC Fower Meter Note that the EXT ALC annunciator is lit 3 Select EXT CAL 0 GHz dB m If
173. ve been viewed the queue is cleared and the MSG annunciator disappears Typical messages would be regarding instrument failures or errors Associated SCPI Commands SYSTem ERRor Returns the next message in the error queue Choosing this function by pressing SHIFT MsG allows you to select one of the instrument states from registers 1 9 to be alternated with the current instrument state on each successive sweep NOTE The alternate sweep function cannot be used with stepped sweep mode When this function is selected the ALT annunciator is turned on and the prompt message in the MARKER SWEEP STATUS display is HT Sip Reg 77 At this time the instrument expects a register to be selected When a digit is pressed on the entry keyboard the display becomes HT Sup Reg lt n gt Note that a Units key i e Hz s ENTER does not need to be pushed Once a register has been selected the current instrument state is alternated with the selected state on every successive sweep The display will only reflect the current instrument state settings not the alternate instrument state settings Any subsequent parameter changes will affect only the current instrument state not the alternate state 8 11 Instrument State Keys Alternate sweep is turned off by selecting ALT n again NOTE If ALT Sup Mea lt ri gt is not the active parameter with pointers above it then the key sequence SHIFT must be performed twice to turn of
174. via the SOURCE MODULE INTERFACE connector the sweep will automatically configure itself for source module operation when the line power is cycled when the sweeper is preset or when a register is recalled 4 2 Using millimeter heads with B model high power sweepers Figure 4 1 shows the equipment setup for using a millimeter head with your HP 83751B or HP 83752B 1 Turn the sweeper line power off and connect the equipment as shown in Figure 4 1 2 Turn the sweeper on and press PRESET 3 The sweeper automatically configures itself for source module operation when the PRESET key is pressed 4 3 Generating a Millimeter Signal Using millimeter heads with B model high power sweepers SOURCE MODULE INTERFACE SYNTHESIZED w SWEEPER RF OUTPUT INTERFACE EXTENDER CABLE ADAPTER IF REQUIRED MM WAVE SOURCE MODULE LEVELED OUTPUT pg420ab Figure 4 1 Millimeter wave Source Module leveling 4 4 Using millimeter heads with A model standard power sweepers Figure 4 2 shows the equipment setup for using a millimeter head with your HP 83751A or HP 83752A An external amplifier is required to obtain maximum specified power 1 Turn the sweeper line power off connect the equipment as shown in Figure 4 1 2 Turn the sweeper on and press PRESET 3 The sweeper automatically configures itself for source module operation when the PRESET_ key
175. ws you to offset the VOLTS GHZ OUTPUT on the rear panel OFFSET The acceptable range of values for this function is 10 to 10 V with the factory preset value being 0 00 V The rear panel output is limited to a 12 V range Associated SCP Commands CORRection VOLTs OFFSet lt num gt Sets the GH7z offset to the desired value 15 16 Special Functions 12 PWR METER TY 12 PWR This function allows you to select the type of power meter that the sweeper METER TY can control via HP IB to calibrate user flatness The choices are 437B 438A SCPI 70100A NOTE The default power meter selection from the factory is 437B If you change to another selection it will not be altered or reset to 4378 by presetting or cycling the line power on the instrument Associated SCP Commands SYSTem COMMunicate PMETer TYPE Sets the type of power meter expected over the HP B to be used for the power meter during sweeper calibration routines 15 17 Special Functions 13 PWR This function allows you to set the power meter HP IB address to the desired METER AD setting The range of acceptable values is from 0 to 30 NOTE The value set at the factory is 13 If you change this value it will not be altered or reset to 13 by presetting or cycling the line power on the instrument Associated SCPI Commands SYSTem COMMunicate PMETer ADDRess Sets the HP 8 address to used for the power meter during sweeper calibration r
176. y dark blue tabs provides information about instrument features and functions Information is divided into chapters as follows Chapter 7 Chapter 8 Chapter 9 Front Rear Panel contains entries that explain different aspects of the sweeper front and rear panel For example you turn to this chapter for information on the sweepers various connectors Instrument State Keys explains the functions of the keys in the Instrument State group Marker Keys explains the functions of the keys in the Markers group vi Chapter Chapter Chapter Chapter Chapter Chapter Chapter Chapter Chapter 13 14 15 16 17 18 Modulation Keys explains the functions of the keys in the Mod group Frequency Keys explains the functions of the keys in the Frequency group Sweep Keys explains the functions of the keys in the Sweep group Power Keys explains the functions of the keys in the Power group Entry Keys explains the functions of the keys in the Entry group Special Functions explains the various selections in the special functions menu which is accessed by selecting SPECIAL Error Messages contains lists of the error messages that might be generated during use of the instrument Specifications and Options contains a list of the sweeper s warranted performance specifications and typical operating parameters as w
177. ys Unit Keys The unit keys serve as terminators for active parameter values being entered from the keypad They consist of also used for dBm and dB also used for ys also used for ms and used for Hz V s and unitless values 14 6 Entry Keys RF ON OFF Pressing this key toggles the RF output state If the output is off the RF OFF annunciator in the right hand display is turned on Associated SCPI Commands POWer STATe ON Turns RF on POWer STATe OFF Turns RF off Associated 8350 Commands RF1 Turns RF on RFO Turns RF off 14 7 Entry Keys e 5 lt These functions selected by pressing the SHIFT key and then the or Q key are only used for certain service related procedures They are not used during normal front panel operation Entry Keys ENTRY OFF SEE eet lt _ _ S SCS ENTRY OFF When this function is selected by pressing SHIFT Hz s ENTER the active parameter is de activated and the MARKER SWEEP STATUS display is blanked All keys in the Entry area are disabled except for RF_ON OFF including the numeric pad the D W keys and the front panel knob When another key is pressed that function becomes the active parameter and the Entry area is enabled Entry Keys PEAK CAUTION When this function is selected by pressing SHIFT RF ON OFF the instrument initiates a peaking algorithm which automatically aligns the YIG tracking filter at a seri

User`s Guide - High Speed Device Group

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