Home

HP 8753ES Network Analyzer

1. Input Power dBm input Power dBm pb697d Figure 2 11 Diagram of Gain Compression Set up the stimulus and response parameters for your amplifier under test Ib reduce the effect of noise on the trace press BH 1888 2 Perform the desired error correction procedure Refer to Chapter 5 Optimizing Measurement Results for instructions on how to make a measurement correction Hook up the amplifier under test To produce a normalized trace that represents gain compression perform either step 5 or step 6 Step 5 uses trace math and step 6 uses uncoupled channels and the display function Biv B2 to D2 5 Press Display EAT A to produce normalized trace 2 22 Making Measurements 6 To produce normalized trace perform the following steps aire 8 e t GOAL CHAH on OFF to to view channels 1 and 2 simultaneously b Ib uncouple the channel stimulus so that the channel power will be uncoupled press COUPLED CH OFF This will allow you to separately increase the power for channel 2 and channel 1 so that you can observe the gain compression on channel 2 while channel 1 remains unchanged c Ib display the ratio of channel 2 data to channel 1 data on the channel 2 display press MORE and set 0272701 ta 2 OFF to This produces a trace that represents gain compression
2. CENTER 900 000 000 MHZ SPAN 500 000 000 MHZ Figure 2 15 Characteristics of a Filter Generally the pass band of a Elter exhibits low loss A relatively low incident power may be needed to avoid overdriving the next stage of the DUT if that stage contains an amplifier or the network analyzer receiver Conversely the stop band of a filter generally exhibits high isolation Ib measure this characteristic the dynamic range of the system will have to be maximized This can be done by increasing the incident power and narrowing the IF bandwidth Making Measurements 2 29 Choose the Measurement Parameters 1 Decide the frequency ranges of the segments that will cover the stop bands and pass band of the filter For this example the following ranges will be used Lower stop 650 to 880 MHz Pass PER VERE RT A 880 to 920 MHz Upper stop 920 to 1150 MHz 2 lb set up the swept list measurement press Menu SWEEP EDIT LIST Set Up the Lower Stop Band Parameters 3 To set up the segment for the lower stop band press NTS 4 lb maximize the dynamic range in the stop band increasing the incident power and narrowing the IF bandwidth press NORE IST POHER OH off IF BH COME SEGMENT POWER IF BW Set Up the Pass Band Parameters 5 set up the segment for
3. START 10 0 CW 800 000 000 MHz STOP 10 0 dBm Figure 3 16 Example Swept Power Conversion Compression Measurement 3 20 Making Mixer Measurements Isolation Example Measurements RE Feedthrough LO TO RF Leakage Figure 3 17 Signal Flow in a Mixer Example Feedthrough LO pg6 105d Making Mixer Measurements 3 21 LO to IF Isolation NETWORK ANALYZER pg638e Figure 3 18 Connections for a Mixer Isolation Measurement B R log MAG 10 dB REF 45 dB zu 1 E STAHT 10 000 000 MHz STOP 3 000 000 000 MHz Figure 3 19 Example Mixer LO to RF Isolation Measurement 3 22 Making Mixer Measurements RF Feedthrough EXTERNAL 196398 Figure 3 20 Connections for a Mixer RF Feedthrough Measurement CH1 B R log MAG 10 dB AEF 20 dB START 10 000 000 MHz STOP 3 000 000 000 MHz Figure 3 21 Example Mixer RF Feedthrough Measurement You can measure the IF to RF isolation in a similar manner but with the following modifications a Use the analyzer source as the IF signal drive m View the leakage signal at the RF port Making Mixer Measurements 3 23 4 Printing Plotting and Saving Measurement Results Configuring a Print Function 1 Connect the printer to the analyzer interface port 2 PORESSES FRI HTER PORT
4. E 1 until the correct printer choice appears 3 Select one of the following printer interfaces Choose FU interface a Enter the HP IB address of the printer followed by x1 Press Local ISE PASS ECOHTEUOL ChosseePARAL L EL ECA F Tif your printer has a parallel centronics interface HELE if your printer has an HP IB Choose SE AL if your printer has a serial RS 232 interface and then configure the print function as follows a PressERI HT E amp BREL D EATE and enter the printer s baud rate followed by x1 b Ib select the transmission control method that is compatible with your printer press amp TEL transmit control handshaking protocol until the correct method appears Printing Plotting and Saving Measurement Results 4 1 Defining Print Function Note The print definition is set to default values whenever the power is cycled However you can save the print definition by saving the instrument state 1 Press DEFIHE PRINT 2 Press FRIHET MOH GEHEGtI E oPREHT COL OR 3 Press ALFTG F E E E until the correct choice ON or OFF is highlighted a Choose HUT ED GH if you want to print one measurement per page a Choose AUT 0 if you want to print multiple measurements per page Note Laser printers and some DeskJet printers do not begin to print until a full page or a partial page and a form fe
5. 2 19 2 11 Diagram of Gain Compression 2 22 2 12 Gain Compression using Linear Sweep and se pm BM 2 24 2 13 Gain Compression using Power Sweep 2 26 2 14 Swept List Measurement Setup 2 28 2 15 Characteristics of a Filter 2 29 2 16 Calibrated Swept List Thru Measurement 2 32 2 17 Filter Measurement using Linear Sweep Power 0 dBm IF BW 3700 Hz 2 33 2 18 Filter Measurement using Swept List Mode 2 34 3 1 Down Converter Port Connections 8 3 3 2 Up Converter Port Connections 8 3 3 3 Example Spectrum of LO and IF Signals Present in a Conversion Loss Measurement 8 6 3 4 Connections for R Channel and Source Calibration 3 7 3 5 Connections for a One Sweep Power Meter Calibration for Mixer Measurements 3 9 3 6 Measurement Setup from Display 3 10 3 7 Conversion Loss Example Measurement 8 11 3 8 Connections for Broad Band Power Meter Calibration 3 13 3 9 Connections for Receiver Calibration 3 18 Contents 5 3 13 3 14 3 15 3 16 3 17 3 18 3 19 3 20 3 21 4 4 2 4 3 5 2 5 8 54 5 5 5 6 5 7 Connections for High Dynamic Range Swept IF Conversion Loss Measurement Example of Swept IF Conversion Loss Measurement Conversion Loss and Output Power as a Function of
6. 9 To compute the isolation error coefficients press RESUME CAL SEGUEHCE RESP I SUE H CAL Optimizing Measurement Results 5 5 One Port Reflection Error Correction 1 Select the type of measurement you want to make 2 To select the correction type press CALIBRATE and select the correction type a If you want to make a reflection measurement at PORT 1 press 111 a If you want to make a reflection measurement at PORT 2 press S22 1 SpEORT NETWORK ANALYZER OPEN SHORT LOAD OPEN SHORT LOAD FOR S4 FOR 522 Pq614e Figure 5 4 Standard Connections for a One Port Reflection Error Correction To measure the standards in sequence press SHORT LORD To compute the error coefficients press DONE I FORT CAL D 5 6 Optimizing Measurement Results Full Two Port Error Correction 1 Set any measurement parameters that you want for the device measurement power format number of points or IF bandwidth 2 lb select the correction type press CAL ERATE FULL FOR REFLECTION FOR TRANSMISSION a AL POSSIBLE ADAPTERS OPEN SHORT LOAD OPEN SHORT LOAD FOR EIE FOR 5 Figure 5 5 Standard Connections for Full Two Port Error Correction 3 lb measure the standards in sequence press FORWARE SHORT FORWARD CORC 4 Repeat the open short load measurements described above but connect the devices in turn to PORT
7. SETUP SETUF SHORT SIHGEE SINGLE F BIHT SIHCLE SE SHEEP SEIBIHG SLOPE SLOFE en OFF SLOFING LIHE TH CHART Uu 79 3 fy Uu o fol fo ol fo fo so fv fy fy S 16 a la la lo OTS lel a amp amp ia 3 3 3 lt i le 3 3 13 3 3 620 Softkey Locations Table 6 1 Softkey Locations continued Softkey SP Le S AVOID On OF THHDBRHEDS DOHE STATS n OFF MODIFIED STD TYPE SIZE 5 VALUE OFFSET TO DISK SWEEP SWEEF TIME f 1 SHEEP TYPE SHE SYSTEM CONTROLLER THEE CAL SHEEP Front P anel Access K ey Display 4 os bs 12 3 2 a 2 a ec ct a o 3 3 E oO IO x E et 3 Lo m e 9 o ao o lt lt lt 5 ajja i eo 8 3 3113 Softkey Locations 6 21 Table 6 1 Softkey Locations continued Softkey Front P anel Access K ey SHEEP TAKE REVR CAL TAEKER L ISTEHER Local TARGET Marker Fctn TERMI NAL IMPEDANCE TEST FORT 1 2 TESTSET 120 FHD TESTSET I 70 REV TESTSET SW KHH o o Lo D 7 lt 1 THRU THRU THRU TIME S TAMF G H of f um D i3 TIHT TITLE Display TITEE SEGUENCE TITLE TO MEMORY TITL
8. Caution Ib prevent connector damage use an adapter BP part number 1250 1462 as a connector saver for R CHANNEL IN NETWORK ANALYZER POWER SENSOR pg625e Figure 3 4 Connections for Channel and Source Calibration 5 From the front panel of the BP 87533 set the desired receiver frequency and source output power by pressing HSTRUMENT MODE FREG OFFS 6 Ib view the measurement trace press Meas INFUT FPORTSR 7 Select the BP 87533 as the system controller SYSTEM Making Mixer Measurements 3 7 8 Set the power meter s address SET ADDRESSES PRESS P IB 9 Select the appropriate power meter by pressing FOWER MTF E 1 until the correct model number is displayed HP 436A or HP 438A 437 1 Press Cal j SEZSEHSK LISTS FRE Hand enter the correction factors as listed on the power sensor PressHDDFR E QUENCY XX CAL FR XX x1 HEHE for each correction factor When finished press HOHE 11 perform a one sweep power meter calibration over the IF frequency range at 0 dBm press CAL SWEEP 12 lb calibrate the R channel over the IF range press Cal RECEIVER CAL TAKE CAL SWEEP Once completed the display should read 0 dBm 3 8 Making Mixer Measurements 13 Make the connections as shown in Figure 3 5 for the one sweep power meter calibration over the RF range EXTERNAL
9. nat on line Error Number printer at the parallel port is not set on line 172 Error Messages 7 27 not on nat connected wrong addrs Error Number printer does not respond to control Verify power 24 to the printer and check the HP IB connection between the analyzer and the printer Ensure that the printer address recognized by the analyzer matches the HP ID address set on the printer itself FRIHTER paper error Error Number There is a paper related problem with the parallel port 171 printer such as a paper jam or out of paper condition FRIHTER power aff Error Number power to the printer at the parallel port is off 174 PRE IHT PLOT IMPROGEESS ABORT WITH LOCAL Error Number print or plot is in progress and you attempt a 166 second print or plot this message is displayed and the second attempt is ignored lb abort a print or plot in progress press Local PROCESSING DISPLAY LIST Information The display information is being processed for a screen Message print to a copy device and stored in the copy spool buffer During this time the analyzer s resources are dedicated to this task which takes less than a few seconds 7 28 Error Messages MTE HOT ADDRES Error Number 117 The power meter cannot be accessed by the analyzer Verify that the power meter address and model number set in the analyze
10. LOG S dB REF 2 dB CH2 LOG 18 dB REF 50 811 821 DUAL CHAN ON off AUX CHAN off 4 PARAM DISPLAYS SPLIT DISP CENTR 134 000 MHz SPAN 45 000 MHz CENTR 134 000 MHz SPAN 45000 MHz CH3 106 18 dB REF 50 dB CH4 106 5 REF 3 dB 12 22 2 CHANNEL POSITION RETURN CENTR 134 008 MHz SPAN 45 888 MHz CENTR 134 000 MHz SPAN 45000 MHz Figure 2 2 Four Parameter Display Making Measurements 2 5 Quick Four Parameter Display A quick way to set up a four parameter display once a full two port calibration is active is to use one of the options in the menu After a full two port calibration has been performed or recalled from a previously saved instrument state 1 Press Display 2 Press DHAL GUA 3 Press 4 FAR AM 4 Press SETUP I SETUP SELHTS To Make an Auxiliary Channel Active activates channels 1 and 3 and activates channels 2 and 4 The following steps illustrate how the measurement channel LED indicators work From step 5 in lb View Four Channels Simultaneously 1 Press Chan 2 The LED adjacent to is flashing This indicates that channel 4is active and may be configured 2 Press Chan 1 The LED adjacent to is constantly lit This indicates that channel 1 is active 3 Press again The LED is flashing indicating that channel 3 is active and may be configured Once active a channel s markers limit lines format and other variables can be applied and
11. iQ Save Recal Save Recall Save Recal Save Recal ISOLATION Es ATION STI DONE lt MODIFIED gt LABEL CLASS Cal Seq Seq Save Recall Save Recall Save Recall Save Recall vo DOHE LRBEL KIT LABEL STD LEFT UPPER Ol lol OT FO JO foro fo Jo fo 9 fo jo gt lt lt 610 Softkey Locations Table 6 1 Softkey Locations continued LIMIT OFFSETS IT LINE ori OFF LIMIT MIT TEST em OFF MIT TEST RESULT LIMIT TYPE FREG MAG LIH LIST FREQ TIF Bion OFF LIST POWER om O F F TYPE BATA L IHE TYPE MEMORY LIST 1 2 COHTR L on OFF LO LO SOURCE ADDRESS EBORE CORD HO OFFSET LORD OFFSET LOAD SEG FROM DISE LOG FREQ LOG MAG LOG HER Front Panel Access Key Marker Marker Fctn System System Cal System Seq Softkey Locations 6 11 Table 6 1 Softkey Locations continued Front P anel Access K ey LOOP LOOP COUHTER 2 LOW PASS HEHESE LOW PASS TRG FOIAT MARKER MMP OFS MARKER CENTER Marker Fctn MARKER eq MARKER BELA Marker Fctn MHRKER Scale Re MHRKER HIPDLE MARKER REFERENCE Marker Fctn MHRKER FEF ER Scale SEAE Marker Fctn Marker Fctn fo fo 2 ERE C
12. B9 97600 MHz 2 Sep 1998 12 12 09 CH2 106 10 dB REF 50 dB 21 4 69 132 dB 151 509 500 MHz 134 000 MHz SPAN 45 000 MHz CH4 106 5 dB REF 2 5 dB 822 4 2 1132 dB 151 509 00 MHz CENTR 134 000 MHz SPAN 45000 MHz CH2 Markers 1 75 710 dB 116 88200 HHz 21 23 481 dB 129 46850 MHz 1337600 Mi CH4 Markers 1 1 7005 dB 116 88200 MHz 2 3 8129 dB 129 46850 MHz 3 3 9114 dB 139 97600 MHz Figure 2 6 Markers after Pressing the Backspace Key To Move Marker Information back onto the Graticules 3 Press lt lt Notice that the marker information moves back onto the graticules and that the softkey menu is restored as shown in Figure 2 6 The softkey menu is also restored when a softkey or hardkey is pressed The hardkey must be one which opens a menu such as or System 2 12 Making Measurements Testing Device with Limit Lines Creating Flat Limit Lines In this example procedure the following flat limit line values are set Er quency Range 2 au nosis a eee ieee Power Range 127 MHz to 140 27 dB to 21 dB 100 MHz to 123 200 dB to 65 dB 146 MHz to 160 200 dB to 65 dB Note The minimum value for measured data is 200 dB 1 Tb access the limits menu and activate the limit lines press Syste NIT MEHL LIMIT EDI CLE 2 lb create
13. The following example uses a ratio of mixer output to input power and a marker search function to locate a mixer s 1 dB compression point 1 Set the LO source to the desired CW frequency and power level CW frequency 600 MHz Rower 13 dBm 2 Initialize the analyzer by pressing Preset 3 16 Making Mixer Measurements 3 To set the desired CW frequency and power sweep range press ER SWEEP RETURN RAE 4 Make the connections as shown in Figure 3 13 Caution Ib prevent connector damage use an adapter HP part number 1250 1462 as a connector saver for R CHANNEL IN NETWORK ANALYZER HIGH PASS FILTER 9634 Figure 3 13 Connections for the First Portion of Conversion Compression Measurement 5 lb view the absolute input power to the analyzer s R channel press Making Mixer Measurements 3 17 6 Ib store a trace of the receiver power versus the source power into memory and view data memory press DATA MEMORY NEM This removes the loss between the output of the mixer and the input to the receiver and provides a linear power sweep for use in subsequent measurements 7 Make the connections as shown in Figure 3 14 Caution Ib prevent connector damage use an adapter HP part number 1250 1462 as a connector saver for R CHANNEL IN EXTERNAL tO SOURCE Figure 3 14 Connections for the Second Portion of Conversion Compression Measu
14. handshaking protocol until the correct method appears 4 Press SET ADDRESSES PLOTTER FORT and then PLTR until PLTR TYPE CHPGL appears Printing Plotting and Saving Measurement Results 4 3 If You Are Plotting to a Pen Plotter 1 Press SET RBDEESSES PLOTTER PORT and then TYPE until TYPE EFEGTTERT appears 2 Configure the analyzer for one of the following plotter interfaces Choose PLTR FORT HP IE if your plotter has an HP IB interface n Enter the HP IB address of the plotter followed by x1 Press SYSTEM CONTROLLER ESE FASS COHTROL m Choose PHHHLLEL centronics interface Choose S ER if your plotter has a serial RS 232 interface and then configure the print function as follows PressFRIHTER RATE and enter the plotter s baud rate followed by x1 b Ib select the transmission control method that is compatible with your plotter press IT EH TE L transmit control handshaking protocol until the correct method appears 1 if your plotter has a parallel 4 4 Printing Plotting and Saving Measurement Results If You Are Plotting to a Disk Drive 1 press SET ADRRESSES PORT DISK 2 Press the disk drive that you will plot to mChooseI BHAL if you will plot to the analyzer internal disk drive ChooseE XT E RHAL BISEifyou will plot to a
15. HOHE DATA DATA LIMIT LH CHL MEM 1 Gi T te 1 ci rx CI c3 03 4 39888 2 2 v 12 9 e o o a iem 0 E 6 4 Softkey Locations Table 6 1 Softkey Locations continued Softkey CLEAR CLEAR LIST COHTIHUE SEQUENCE COAT DHUOUS Front P anel Access K ey Copy Copy Dis Save Recal eq 9 folo o o e L e II Ie s Io Eg ol 16 5 5j 9 19 12 ia E lt ie k lt 3 la lt Me m Softkey Locations 6 5 Table 6 1 Softkey Locations continued Softkey Front Panel Access Key BATA and MEMORY DATA AREAY on OFF Save Recall DATA EATA MEMORY Disp EATA OHLY am OFF Save Recal BECI SIGH MRE IHG LO uo e 9 2 7 E 9 fs 3 lt lt 9 v 3118 El g g 911 DEFINE Save Recal PLOT DEFINE PRINT DEF I HE STANDARD DELAY DELAY THRE DELETE FILES ave Recall DELETE F ICE Save Recall DELTA LIMITS System DEMOD AMPLITUDE Syste OFF DEHBOD PHASE System DIRECTORY SIZE Save Recall 6 6 Softkey Locations Table 6 1 Softkey Locations continued Softkey UHIT HUMBER RESP ISOL H CAL MODIFY TRLZLEM PONH EC E
16. Hld status notation 1 7 hold mode test set switch 5 16 how to activate chop sweep mode 5 16 change measurement averaging 5 17 change system bandwidth 5 17 compensate for directional coupler response 5 9 configure a plot function 4 3 configure a plot function to disk drive 4 5 configure a plot function using and HPGL 2 compatible printer 4 3 configure a plot function using a pen plotter configure a print function 4 1 control the test set switch 5 16 create flat limit lines 2 13 create single point limits 2 18 create sloping limit lines 2 16 decrease frequency span 5 13 define line types 4 8 define the plot 4 6 define the print 4 2 delete limit segments 2 20 edit limit segments 2 20 enter the power sensor calibration data 5 9 error correct for full two port measurements 5 7 error correct for one port reflection measurements 5 6 error correct for response and isolation for transmission measurements 5 4 error correct response for reflection measurements 5 3 error correct response for transmission measurements 5 4 increase sweep speed 5 1 1 12 make a basic measurement 2 2 measure gain compression 2 22 measure high dynamic range conversion loss 3 12 measure mixer isolation 3 21 measure mixers 3 1 measure swept mixers 3 6 plot to an HPGL compatible printer 4 9 power meter calibrate 3 5 ratio measurements in channel 1 and
17. LO SOURCE p9526e Figure 3 5 Connections for a One Sweep Power Meter Calibration for Mixer Measurements 14 Ib set the frequency offset mode LO frequency from the analyzer press E HMEHT MODE EREG OFFS LY HEHEFEREGEEEH 15 select converter type and high side LO measurement configuration press E COHVERTER RFLG Making Mixer Measurements 3 9 FREO OFFS ON off to MENU DOWN CONVERTER UP CONVERTER RF gt LO RF lt LO VIEW MEASURE RETURN stort 900 MHz stop 650 MHz rt 100 MHz stop 350 MHz FIXED LO 1 GHz LO POWER 13 dBm pg627e Figure 3 6 Measurement Setup from Display 16 To view the measurement trace press VI EH 17 Ib perform a one sweep power meter calibration over the RF frequency range press CHE ONE SWEEP 0 TAKE GAL SWEEP Note Do not reduce the number of points to perform this power meter calibration Reducing the number of points will turn off the receiver calibration The analyzer is now displaying the conversion loss of the mixer calibrated with power meter accuracy 3 10 Making Mixer Measurements 18 lb view the conversion loss in the best vertical resolution press Scale Ref AUTO CH1 A log MAG 1 d8 REF 7 L START 100 000 000 MHz STOP 350 000 000 MHz Figure 3 7 Conversion
18. P1 P2 on the plotter 4 9 panel rear 1 9 parallel interface 1 9 parameters defaults for plotting 4 9 defaults for printing 4 2 pass fail display location 1 8 pass fail indicators on display 1 8 PC status notation 1 7 Index 9 PC status notation 1 7 P status notation 1 7 pen number settings 4 7 4 7 4 8 PENNUMGRAT ICULE 4 8 pen plotter configuring to plot 4 4 performance verification measurement accuracy 5 2 peripheral configurations 4 1 plot defined boundaries 4 9 definition 4 6 46 PLOTMER 4 plot speed 4 9 plotter configuration 4 3 line types 4 8 pen number settings 4 7 plotter 1 and P2 4 9 FEOTTEXT 4 6 plotting arrays 4 6 components defined 4 6 to an HPGL compatible printer 4 9 plotting printing and saving 4 1 point limit creation 2 18 points data how to reduce 5 15 port 1 and port2 1 8 port extensions 5 2 Index 10 port power increasing 5 17 power increasing test port 5 17 power cord receptacle with fuse 1 9 power meter calibration 5 9 calibration for mixer measurements 3 5 power meter calibration continuous correction mode 5 11 loss of calibration data 5 9 sample and sweep correction mode 5 10 power sensor calibration data 5 9 preset key location 1 3 print definition 4 2 printer color 4 2 configuration 4 1 4 3 printing default setting 4 2 printing plotting and saving 4 1
19. PRm status notation 1 7 probe power source connector location 1 3 procedure basic measurement sequence 2 2 compensating for directional coupler response 5 9 configuring a plot function 4 3 configuring a print function 4 1 creating flat limit lines 2 13 creating single point limits 2 18 creating sloping limit lines 2 16 defining line types 4 8 defining the plot 4 6 defining the print 4 2 deleting limiting segments 2 20 editing limit segments 2 20 entering the power sensor calibration data 5 9 error correction for full two port measurements 5 7 error correction for one port reflection measurements 5 6 measuring gain compression 2 22 plotting to an HPGL compatible printer ratioing measurements in channel 1 and 2 2 8 resetting plotting parameters to default values 4 9 resetting the printing parameters to default values 4 2 response and isolation error correction for transmission measurements 5 4 response error correction for reflection measurements 5 3 response error correction for transmission measurements 5 4 reviewing limit line segments 2 21 running a limit test 2 21 saving a data trace to the display memory 2 7 searching for maximum amplitude 2 10 searching for minimum amplitude 2 10 setting measurement parameters 2 2 setting source power 2 3 setting the measurement type 2 3 setting up a color printer 4 2 subtracting memory trace from mea
20. RF to a replica IF displaced in frequency by the local oscillator LO Frequency translation is characterized by a loss in signal amplitude and the generation of additional sidebands For a given translation two equal output signals are expected a lower sideband and an upper sideband CONVERSION LOSS POWER LEVEL fir re fLo flo tre FREQUENCY 96944 Figure 3 3 An Example Spectrum of LO and IF Signals Present a Conversion Loss Measurement The analyzer allows you to make a swept conversion loss measurement holding the LO frequency fixed You can make this measurement by using the analyzer s frequency offset measurement mode This mode of operation allows you to offset the analyzer s source by a fixed value above or below the analyzer s receiver That is this allows you to use a device input frequency range that is different from the receiver input frequency range The following procedure describes the swept IF frequency conversion loss measurement of a broadband component mixer 1 Set the LO source to the desired CW frequency and power level CW frequency 1000 MHz Power 13 dBm 3 6 Making Mixer Measurements 2 Set the desired source power to the value which will provide 10 dBm or less to the R channel input Press Menu POWER RANGE 0 4 3 Calibrate and zero the power meter 4 Connect the measurement equipment as shown in Figure 3 4
21. f or Y repeatedly OR GME HT and enter the segment number followed by x1 3 To change the upper limit for example 20 of a limit line press EDIT UPPER LIMIT 20 1 Deleting Limit Segments 1 lb access the limits menu and activate the limit lines press System LIMIT MEHU LIMIT EIHE EDIT LIMIT LINE 2 lb move the pointer symbol gt on the analyzer display to the segment you wish to delete press SEC EHT for repeatedly OR SEG HT and enter the segment number followed by xl 3 Ib delete the segment that you have selected with the pointer symbol press DELETE 2 20 Making Measurements Running a Limit Test 1 lb access the limits menu and activate the limit lines press LIMIT MENU LIMIT LINE OH EDIT LIMIT EINE Reviewing the Limit Line Segments The limit table data that you have previously entered is shown on the analyzer display 2 Ib verify that each segment in your limits table is correct review the entries by pressing SEGMENT f and 2 3 lb modify an incorrect entry refer to the Editing Limit Segments procedure located earlier in this section Activating the Limit Test 4 lb activate the limit test and the beep fail indicator press ystem L MEHULIMIT TEST GH BEEP FAIL Note Selecting beep fail indicator BEEP F AIL H is optional and will add approximately 50 ms of sweep cycle time Because the limit test will still wo
22. 16 conversion compression mixer measurement 3 16 conversion loss and output power as a function of input power level example 3 16 equation 3 1 1 example measurement 3 11 procedure 3 12 using the frequency offset mode 3 6 Cor status notation 1 5 crosstalk reducing 5 18 C status notation 1 5 D data loss of power calibration 5 9 data arrays flexibility 4 10 data trace saved to the display memory 2 7 decrease frequency span 5 13 default line types for plotter 4 8 pen numbers for plot elements 4 8 plotting parameters 4 9 printing parameters 4 2 default settings plotter pen numbers 4 7 defined plotting components 4 6 defining a plot 4 6 the print 4 2 deleting limit segments 2 20 Del status notation 1 6 delta A markers 2 9 directional coupler compensation 5 9 disk drive configuring to plot 4 5 location 1 1 display information 1 4 location 1 1 of analyzer 1 4 status notations 1 5 display memory trace 2 7 display titling 2 8 display trace math 2 8 down converter port connections 3 2 drift frequency 5 2 temperature 5 1 dynamic range increasing 5 17 E editing limit segments 2 20 entry block location 1 2 error correction 5 1 full two port measurements 5 7 one port reflection measurements 5 6 response and isolation for transmission measurements 5 4 Index 3 response for reflection measurements 5 3 response for transmission measure
23. 2 2 8 reduce receiver crosstalk 5 18 reduce receiver noise floor 5 17 reduce the averaging factor 5 14 reduce the number of points 5 15 reduce trace noise 5 18 Index 5 reset plotting parameters to default values 4 9 reset the printing parameters to default values 4 2 review limit line segments 2 21 run a limit test 2 21 save a data trace to the display memory 2 7 save measurement results 4 10 search for maximum amplitude 2 10 search for minimum amplitude 2 10 set auto sweep time mode set source power 2 3 set the measurement parameters 2 2 set the measurement type 2 3 set the sweep type 5 15 subtract the memory trace from the measurement data trace 2 8 title the active channel display 2 8 use delta A markers 2 9 use frequency offset mode 3 6 use limit lines 2 13 use swept list mode to increase sweep speed 5 12 widen system bandwidth 5 14 HPGL 2 compatible printer configuring to plot 4 3 HP IB Index 6 connector 1 9 I IF how defined for mixers 3 2 IF bandwidth how to widen 5 14 increase test port power 5 17 increasing sweep speed 5 11 5 12 increasing dynamic range 5 17 increasing measurement accuracy 5 information messages 7 1 instrument state function block location 1 3 interconnecting cables 5 1 interface GPIO 1 9 parallel 1 9 RS 232 1 9 isolation measurements for mixers 3 21 K keyboard connector 1 9 keys referenced to fron
24. 2 and use the REVERSE REVERSE SHORT and REVERSE ERE softkeys 5 Ib compute the reflection correction coefficients press STAHDARDS 6 Ib start the transmission portion of the correction press TRAHSMISSIOW Make a thru connection between the points where you will connect your device under test as shown in Figure 5 5 1 Optimizing Measurement Results 5 7 8 Ib measure the standard when the trace has settled press CO BOTH FHD TEESW 9 Press I 0 LET IG select from the following two options a If you will be measuring devices with a dynamic range less than 90 dB press OMIT ILATIOH If you will be measuring devices with a dynamic range greater than 90 dB follow these steps a Connect impedance matched loads to PORT 1 and PORT 2 Include the adapters that you would include for your device measurement b Activate at least four times more averages than desired during the device measurement d Return the averaging to the original state of the measurement and press RESUME GAL SEQUENCE 10 1 compute the error coefficients press DOME 2 PORT 5 8 Optimizing Measurement Results Power Meter Measurement Calibration You can use the power meter to monitor and correct the analyzer source power to achieve calibrated absolute power at the test port You can also use this calibration to set a reference power for receiver power calibration and mixer measuremen
25. 4 channel 4 2 4 channel display titling 2 8 channels display 1 4 choosing display elements 4 6 scale 4 9 chop sweep mode how to activate 5 16 color printer use 4 2 compensating for directional coupler response 5 9 compression measurement 2 22 configuration plotter 4 3 configuring a plot function 4 3 a print function 4 1 printer 4 1 4 3 the analyzer for the printer 4 1 connections broad band power meter calibration 3 13 down converter port 3 2 first portion of conversion compression measurement 3 17 Index 2 high dynamic range swept IF conversion loss measurement 3 14 mixer isolation measurement 3 22 mixer RF feedthrough measurement 3 23 one sweep power meter calibration for mixer measurements 3 9 R channel and source calibration 3 7 receiver calibration 3 13 second portion of conversion compression measurement 3 18 up converter port 3 3 connector auxiliary input 1 10 external am 1 10 external trigger 1 10 for external monitor 1 1 for HP IB 1 9 for keyboard 1 9 limit test 1 10 parallel centronics interface 1 9 probe power source 1 3 R channel 1 3 serial RS 232 interface 1 9 test sequence 1 10 test set interconnect 1 10 connector repeatability 5 1 connectors rear panel 1 9 considerations for mixer measurements 3 1 continuous correction mode for power meter calibration 5 1 1 continuous mode test set switch 5 16 controlling the test set switch 5
26. 500 TERMINATION POWER METER pg628e Figure 3 8 Connections for Broad Band Power Meter Calibration 4 Connect the measurement equipment as shown in Figure 3 9 NETWORK ANALYZER 10 dB 500 TERMINATION 4629 Figure 3 9 Connections for Receiver Calibration 5 Set the following analyzer parameters Gan 50 Making Mixer Measurements 3 13 6 lb calibrate the channel over the IF range press Meas 1 PORTS E IVER CAL TARE ROVE CAL Once completed the analyzer should display 0 dBm 7 Make the connections shown in Figure 3 10 8 Set the LO source to the desired CW frequency and power level For this example the values are as follows CW frequency 1500 MHz source power 13 dBm NETWORK ANALYZER 1000 MHz LOW PASS RS 300 MHz LOW PASS FILTER EXTERNAL LO SOURCE Figure 3 10 Connections for a High Dynamic Range Swept IF Conversion Loss Measurement 3 14 Making Mixer Measurements 9 1 set the frequency offset mode LO frequency press EREG OFFS LO MENU FREQUENCY CH 1500 10 Ib select the converter type and low side LO measurement configuration press RETUREH DOWN CONVERTER RESLO FREG OFFS OH In this low side LO down converter measurement the analyzer s source frequency range will be offset higher than the receiver frequency range The source frequency range
27. Choose FL SPEE amp ESL Ohi for plotting directly on transparencies The slower speed provides a more consistent line width To Reset the Plotting Parameters to Default Values Press Cogy DE FINE PLOTMOREMOREDEFAULT PLOTSETUP If You Are Plotting to an HPGL Compatible Printer 1 Configure and define the plot as explained in Configuring a Plot Function and Defining a Plot Function located earlier in this chapter 2 Press PLOT PLOTTER FORT FEED to print the data the printer has received Printing Plotting and Saving Measurement Results 4 9 To Save Measurement Results Note You can only save measurement data to a disk The analyzer internal memory can only store instrument states and memory traces The analyzer stores data in arrays along the processing flow of numerical data from IF detection to display These arrays are points in the flow path where data is accessible usually via HP IB You can choose from three different arrays which vary in modification flexibility when theyre recalled Define Save Modification Flexibility During Recall Raw Data Array Data Array Format Array You can also save data only A data only file is saved to disk with default filenames DATAO0DI to DATA31D1 for channel 1 DATAOOD2 to DATA31D2 for channel 2 DATAOOD3 to DATA31D3 for channel 3 and DATAOODA to DATA31D4 for channel 4 However these files are not instrument states and cannot be recalled 4 1
28. D lt et 2 2 2 0 2 la fal lal fol dal o O v gt f wml uo o a b s M 2142 vo LA Save Recal Save Recal Display a RESPONSE amp ISOL H Softkey Locations 6 17 Table 6 1 Softkey Locations continued Softkey Front Panel Access Key STB Cal SE System EH System RIGHT Co S Of fol o fa amp 3 PARAMETERS Sil Cal Sie 8116 911 REFL Cal off System QL FOL fay a 2 2 D lt 6 18 Softkey Locations Table 6 1 Softkey Locations continued Front Panel Access Key Save Recall Save Recal Scale Re SCALE PLOT 2 Marker Fctn Marker Fctn Marker Fctn Marker Fctn Marker Fctn SEGMEH SEGMENT SEGMEF System Copy Save Recal o o ime wo he alis Seil lo ct a lt 3 eq Seq E EGHEHEE SEGUEHCE o q Seq Softkey Locations 6 19 Table 6 1 Softkey Locations continued Front Panel Access Key SEQUENCE Save Recall SET ADDRESSES Loca SET BIT eq SET CEBDCE System DAY System SET FRED PASS HOUR MIHUTES REF THRU REF REFLECT TEAR zB SETUP H SETUP SETUP
29. IB command 33 Refer to the HP 8753E Programming and Command Reference Guide for proper command syntax SYST CTRL OF PASS CTRL IH LOCAL Error Number The analyzer is in talker listener mode In this mode 36 the analyzer cannot control a peripheral device on the bus Use the local menu to change to system controller or pass control mode TEST ABORTED Error Number You have prematurely stopped a service test 113 THIS LIST IHVRLID Error Number You have set frequencies the list that outside of 133 the allowable frequency range of the analyzer Reduce the frequency range of the list Error Messages 7 33 TOO HESTED SEG ABORTED Error Number You can only nest sequences to a maximum level of six 164 The sequence will abort if you nest more than six TOO SEGMENTS 5 Error Number You can have a maximum of 30 segments or 1632 points 50 in frequency list mode In power meter calibrations you can have a maximum of 12 segments for power sensor cal factors and power loss functions TRAHSFORM GATE HOT ALLOWED Error Number You can perform a time domain transformation only in 16 linear and CW sweep types TROUBLE CHECK SETUP AHD START OVER Service Error Your equipment setup for the adjustment procedure in Number 115 progress is not correct Check the setup diagram and instructions HP 8753E Network Analyzer Service Guide Start the
30. IB or via 194 disk was not properly organized The analyzer is unable to read the CITIFILE statement Error Messages 7 3 MISSIHG STATEMENT Error Number citifile you just downloaded over the HP IB or via 195 disk was not properly organized The analyzer is unable to read the DATA statement ASCII MISSIHG VRE STRTEHEHT Error Number citifile you just downloaded over the HP IB or via 196 disk was not properly organized The analyzer is unable to read the VAR statement AVERAGING IHVRLID HOW RATIO MEASURE Error Number You cannot use sweep to sweep averaging in 13 single input measurements Sweep sweep averaging is valid only for ratioed measurements A R B R A B and S parameters You can use noise reduction techniques such as narrower IF bandwidth for single input measurements BAD FREG FOR HREHOH I C OR FREH OFFSET Error Number You turned on time domain or recalled a calibration 181 that resulted in start and stop frequencies that are beyond the allowable limits EHTTER FAILED STATE MEMORY CLEARED Error Number The battery protection of the non volatile CMOS 183 memory has failed The CMOS memory has been cleared Refer to the HP 8752E Network Analyzer Service Guide for battery replacement instructions 7 4 Error Messages BATTERY LOM STORE SAVE REGS TO DISK Error Number The battery protection of the non volatile CMOS 184 memory is in dange
31. Input Power Level Example Connections for the First Portion of Conversion Compression Measurement Connections for the Second Portion of Conversion Compression Measurement Measurement Setup Diagram Shown on Analyzer Display Example Swept Power Conversion Compression Measurement Signal Flow a Mixer Example Connections for a Mixer Isolation Measurement Example Mixer LO to RF Isolation Measurement Connections for a Mixer RF Feedthrough Measurement Example Mixer RF Feedthrough Measurement Plot Components Available through Definition Line Types Available Locations of Pl and P2in 6 eo Data Processing Flow Diagram Standard Connections for a Response Error Correction for Reflection Measurement Standard Connections for Response Error Correction for Transmission Measurements Standard Connections for a Response and Isolation Error Correction for Transmission Measurements Standard Connections for a One Port Reflection Error Correction Standard Connections for Full Two Port Error Correction Sample and Sweep Mode for Power Meter Calibration Continuous Correction Mode for Power Meter Calibration Contents 6 CO co C9 c BO FO pn 20 21 22 22 23 23 4 6 4 8 4 9 4 11 Tables 2 1 Connector Care Q
32. Loss Example Measurement Conversion loss gain output power input power Making Mixer Measurements 3 11 High Dynamic Range Swept Conversion Loss The analyzer has a 35 dB dynamic range limitation on measurements made directly with its R phaselock channel For this reason the measurement of high dynamic range mixing devices such as mixers with built in amplification and filtering with greater than 35 dB dynamic range must be made on either the analyzer s A or B channel with a reference mixer providing input to the analyzer s R channel for phaselock This example describes the swept IF conversion loss measurement of a mixer and filter The output filtering demonstrates the analyzer s ability to make high dynamic range measurements Ib avoid the complexity of performing a separate power meter calibration over the RF frequency range while the mixer under test and reference mixer are operating a broad band power meter calibration is used The broad band calibration covers the entire range of IF and RF frequencies 1 Set the following analyzer parameters Start 100 Menu FOHER PHE RANGE 0 2 Calibrate and zero the power meter 3 Connect the measurement equipment as shown in Figure 3 8 Caution Ib prevent connector damage use an adapter HP part number 1250 1462 as a connector saver for R CHANNEL IN 3 12 Making Mixer Measurements NETWORK ANALYZER
33. POINT RETURH You could use this type of limit to test the shape factor of a filter CH1 S log MAG 10 dB REF 50 dB 1 69 89 dB 159 088 MHz CENTER 134 608 000 MHz SPAN 50 000 MHz 84000012 Figure 2 9 Sloping Limit Lines Making Measurements 2 17 Creating Single Point Limits In this example procedure the following limits are set from 23 dB to 28 5 dB at 141 MHz from 23 dB to 28 5 dB at 126 5 MHz To access the limits menu and activate the limit lines press MENU LIMIT LINE OH EDIT LIMIT 2 designate a single point limit line as shown in Figure 2 10 you must define two pointers e downward pointing indicating the upper test limit upward pointing indicating the lower test limit Press IMIT TYPE SINGLE POINT 2 18 Making Measurements CHL 5 log MAG 10 87 REF 50 dB 1 69 213 dB EA etA EB ERE a sp EIS ES CENTER 134 000 000 MHz SPAN 50 000 MHz aw000013 Figure 2 10 Example Single Point Limit Lines Making Measurements 2 19 Editing Limit Segments This example shows you how to edit the upper limit of a limit line 1 Tb access the limits menu and activate the limit lines press IMIT LINE EDIT LIMIT 2 Tb move the pointer symbol gt on the analyzer display to the segment you wish to modify press SEG MENT
34. calculates when you access the menus with the key Refer to Using Analyzer Display Markers in Chapter 2 Making Measurements Softkey Labels These menu labels redefine the function of the softkeys that are located to the right of the analyzer display Pass Fail During limit testing the result will be annunciated as PASS if the limits are not exceeded and FA if any points exceed the limits 1 8 HP 87533 Front and Rear Panel Rear Panel Features and Connectors pg63e Figure 1 3 HP 87533 Rear Panel Figure 1 3 illustrates the features and connectors of the rear panel described below Requirements for input signals to the rear panel connectors are provided in Chapter 7 of the User s Guide 1 HP IB connector This allows you to connect the analyzer to an external controller compatible peripherals and other instruments for an automated system PARALLEL interface This connector allows the analyzer to output to a peripheral with a parallel input Also included is a general purpose input output GPIO bus that can control eight output bits and read five input bits through test sequencing RS 232 interface This connector allows the analyzer to output to a peripheral with an RS 232 serial input KEYBOARD input mini DIN This connector allows you to connect an external keyboard This provides a more convenient means to enter a title for storage files as well as substitute for the analyzer s
35. can be determined from the following equation receiver frequency range 100 to 1000 MHz LO frequency 1500 MHz 1 6 2 5 GHz 11 1 view the conversion loss in the best vertical resolution press log MAG 10 dB REF 50 dB PAm PC Cor 045 100 000 000 MHz STOP 1 000 000 000 MHz Figure 3 11 Example of Swept IF Conversion Loss Measurement Making Mixer Measurements 3 15 Conversion Compression using the Frequency Offset Mode Conversion compression is a measure of the maximum RF input signal level where the mixer provides linear operation The conversion loss is the ratio of the IF output level to the RF input level This value remains constant over a specified input power range When the input power level exceeds a certain maximum the constant ratio between IF and RF power levels will begin to change The point at which the ratio has decreased 1 dB is called the 1 dB compression point See Figure 3 12 5 Ratioing Shows ression Point Power dBm IF Conversion Loss Ratio dB Input Signal RF input Signal RF pb61004 Figure 3 12 Conversion Loss and Output Power as a Function of Input Power Level Example Notice that the IF output power increases linearly with the increasing RF signal until mixer compression begins and the mixer saturates
36. disk DOMAIN RESET Error Number Time domain calculations were reset due to a change in 67 the frequency range sweep type or number of points Perform a new time domain transform on the new state pas L IMI TED TOS CHARS 3 CHAR ERTEHS OH Error Number A DOS file name must meet the following criteria 180 M minimum of 1 character formatisfilename ext a maximum of 8 characters in the filename maximum of 3 characters in the extension Eeld optional a a dot separates the filename from the extension field the dot is not part of the name on the disk 7 12 Error Messages DUPLICATING THIS SEQUENCE HOT ALLOWED Error Number A sequence cannot be duplicated to itself 125 EXCEEDED STRHbREDS PER CLASS Error Number When modifying calibration kits you can define a 72 maximum of seven standards for any class ESTERHAL SOURCE MODE REQUIRES CH TIME Error Number An external source can only be phase locked and 148 measured in the CW time sweep mode EXT SOURCE HOT READY FOR TRIGGER Error Number There is a hardware problem with the HP 8625A 191 external source Verify the connections between the analyzer and the external source If the connections are correct refer to the source operating manual ExT SRC HOT OF WRONG ADDR Error Number The analyzer is unable to communicate with the 162 external source Check the connections and the HP IB address on
37. insertion phase response measurement is made Step 1 Connect the device under test and any required test equipment 1 Make the connections as shown in Figure 2 1 NETWORK ANALYZER DEVICE UNDER TEST Figure 2 1 Basic Measurement Setup Step 2 Choose the measurement parameters 2 Press PRESET FACTORY Setting the Frequency Range 3 Ib set the center frequency to 134 MHz press Coen 38 OD 2 2 Making Measurements 4 Ib set the span to 30 MHz press Ow Setting the Source Power 5 lb change the power level to 5 dBm press POWER 5 Setting the Measurement 6 lb change the number of measurement data points to 101 press H 7 Ib select the transmission measurement press rans tFHD S21 BFR 8 Ib view the data trace press AUTOSCALE Step 3 Perform and apply the appropriate error correction 9 Refer to the Optimizing Your Measurement Results chapter 10 Ib save the instrument state and error correction in the analyzer internal memory press SEEECT DISK Th STATE Step 4 Measure the device under test 11 Replace any standard used for error correction with the device under test 12 lb measure the insertion loss of the bandpass filter press om Step 5 Output the measurement results 13 lb create a hardcopy of the measurement results press or FEOT Making Measurements 2 3 Using the Display Functions To View Four Channels Simultane
38. meter readings are not consistent 118 Verify that the equipment is set up correctly If so preset the instrument and restart the operation POWER SUPPLY HOT Error Number The temperature sensors on the A8 post regulator 21 assembly have detected an over temperature condition The power supplies regulated on the post regulator have been shut down POWER SUPPLY SHUT Error Number One or more supplies on the 8 post regulator assembly 22 have been shut down due to an over current over voltage or under voltage condition PRESS CMEHU SELECT FREQ LO Error Number When you are sweeping the RF and LO the IF must be 161 fixed PRIHTABORTED Error Number When you press the Local key the analyzer aborts 25 output to the printer 7 26 Error Messages print color not supported with Error Number You have defined the printer type as EPSON 1 Color 178 print is not supported with this printer The print will abort busy Error Number The parallel port printer is not accepting data 176 FEIHTER error Error Number The parallel port printer is malfunctioning The 175 analyzer cannot complete the copy function not connected Error Number There is no printer connected to the parallel port 173 PRI HTEE not handzhak ina Error Number printer at the parallel port is not responding 177
39. printer Press xl after each modification Table 4 1 Default Pen Numbers and Corresponding Colors Corresponding Key Plot Element Channel 1 Channel 2 Channel 3 Channel 4 Numbers Pen Numbers HUM GATA Measurement Data Trace HUM MEMORY Displayed Memory Trace HUM GRATICULE and Reference Line HUM TEXT Displayed Text HUM MAREER Displayed Markers and Values Printing Plotting and Saving Measurement Results 4 7 Note You can set all the pen numbers to black for a plot in black and white You must define the pen numbers for each measurement channel channel l channel 3 and channel B channel 4 Selecting Line Types 5 Press MORE and select each plot element line type that you want to modify Table 4 3 Default Line Types for Plot Elements Plot Elements Channel 1 and 3 Channel 2 and 4 Line Type Numbers Line Type Numbers Data Trace Memorv Trace 0 Specifies dots only ot the pointe that are plotted gt p9b135d Figure 4 2 Line Types Available 4 8 Printing Plotting and Saving Measurement Results Choosing Scale 6 Press SCALE FLOT until the selection appears that you want SCALE PLOT STARE FEST Pt pg6157d Figure 4 3 Locations of and P2 in Choosing Plot Speed 7 SPEED until the plot speed appears that you want a Choose FEGT SPEED FAST 1 for normal plotting
40. procedure again HAITIHG FOR CLEAN SHEEP Information In single sweep mode the instrument ensures that all Message changes to the instrument state if any have been implemented before taking the sweep The command that you have initiated is being processed and will not be complete until the new sweep is completed An asterisk is displayed in the left margin until a complete fresh sweep has been taken 7 34 Error Messages FOR DISK Information This message is displayed between the start and finish Message of a read or write operation to a disk HRITIHG FOR HP IB CONTROL Information You have instructed the analyzer to use pass control Message USEPASC When you send the analyzer an instruction that requires active controller mode the analyzer requests control of the bus and simultaneously displays this message If the message remains the system controller is not relinquishing the bus WRITE ATTEMPTED WI THOUT SELECT ING INPUT Error Number You have sent the data header A to the analyzer 32 with no preceding input command such as INPUDATA The instrument recognized the header but did not know what type of data to receive Refer to the HP 8753E Programming and Command Reference Guide for command syntax information WROHG DISK FORMAT IHITIBLIZE DISE Error Number You have attempted to store load or read Ele titles but 77 your disk format does not conform to the Logical Intercha
41. refer to the disk drive operating manual DISK 15 WRITE PROTECTED Error Number store operation cannot write to a write protected 48 disk Slide the write protect tab over the write protect opening in order to write data on the disk DISK MEDIUM NOT IHITIRLIZED Error Number You must initialize the disk before it can be used 40 DISK MESSAGE LEHGTH ERROR Error Number analyzer and the external disk drive aren t 190 communicating properly Check the HP IB connection and then try substituting another disk drive to isolate the problem instrument DISKE nat nat connected wrona addrs Error Number disk cannot be accessed by the analyzer Verify 38 power to the disk drive and check the HP IB connection between the analyzer and the disk drive Ensure that the disk drive address recognized by the analyzer matches the HP IB address set on the disk drive itself Error Messages 7 11 DISK READ HRITE ERROR Error Number There may be a problem with your disk Try a new 189 floppy disk If a new floppy disk does not eliminate the error suspect hardware problems DISK WEAR REPLACE DISK SOOM Error Number Cumulative use of the disk is approaching the 49 maximum Copy files as necessary using an external controller If no controller is available load instrument states from the old disk and store them to a newly initialized disk using the save recall features of the analyzer Discard the old
42. serial interface 1 9 running a limit test 2 21 5 sample and sweep correction mode 5 10 sample and sweep mode for power meter calibration 5 10 save a data trace to the display memory 2 7 saving printing and plotting 4 1 scale div area of display 1 8 SCALEPLOT 4 9 searching for values with markers maximum amplitude 2 10 minimum amplitude 2 10 second portion of conversion compression measurement connections 3 18 segment deleting 2 20 selecting line types 4 8 sensor calibration data 5 9 sequence of measurement serial number plate location 1 11 serial RS 232 interface 1 9 sex of type N calibration standard 5 3 shortened sweep time 5 12 signal flow in a mixer example 3 21 single point limits 2 18 sloping limit lines 2 16 Smo status notation 1 7 softkey label location 1 8 labels of display 1 8 location 1 1 softkey locations 6 1 softkeys and corresponding front panel access key 6 1 span frequency decrease 5 13 spectrum of RELO and IF signals present in a conversion loss measurement 3 6 speed increased 5 12 standard connections for full two port error correction 5 7 one port reflection error correction 5 6 response and isolation error correction for amp transmission measurements 5 5 response error correction for reflection measurement 5 3 response error correction for transmission measurements 5 4 start values possible 1 5 status notation 1 7 status notati
43. sweep In addition this mode allows the test port power and IF bandwidth to be set independently for each segment that is defined The frequency segments in this mode cannot overlap The ability to completely customize the frequency sweep while using swept list mode is useful when setting up a measurement for a device with high dynamic range like a Elter The following measurement of a filter illustrates the advantages of using the swept list mode Note Primary channels 1 and 2 can be set up independently from each other with different frequency lists stepped or swept Press and set COUPLED CH GB fto OFF to uncouple the primary channels from each other You can then create an independent frequency list for each primary channel Due to the permanent stimulus coupling between primary and auxiliary channels channel 3 and 4 will have the same frequency lists as channels 1 and 2 respectively Making Measurements 2 27 Connect the Device Under Test 1 Connect the equipment as shown in the following illustration NETWORK ANALYZER DEVICE UNDER TEST p967e Figure 2 14 Swept List Measurement Setup 2 Set the following measurement parameters T ZENG 624 BFPRO 2 28 Making Measurements Observe the Characteristics of the Filter CH1 524 log MAG 11 dB REF O ae ea A mr
44. the active function and its current value Message Area This displays prompts or error messages Title This is a descriptive alpha numeric string title that you define and enter through an attached keyboard or as described in Chapter 4 Printing Plotting and Saving Measurement Results HP 87633 Front and Rear Panel 1 7 10 11 12 13 Channel This is the channel selected with the and keys For multiple superimposed channel displays more than one channel will be shown Measured Input s This shows the S parameter input or ratio of inputs currently measured as selected using the key Also indicated in this area is the current display memory status Format This is the display format that you selected using the Format key Scale Div This is the scale that you selected using the key in units appropriate to the current measurement Reference Level This value is the reference line in Cartesian formats or the outer circle in polar formats whichever you selected using the key The reference level is also indicated by a small triangle adjacent to the graticule at the left for channel 1 and at the right for channel 2 in Cartesian formats Marker Values These are the values of the active marker in units appropriate to the current measurement Refer to Using Analyzer Display Markers in Chapter 2 Making Measurements Marker Stats Bandwidth These are statistical marker values that the analyzer
45. 0 Printing Plotting and Saving Measurement Results A Oo DIGITAL SAMPLER IF R O ADC FILTER RATIO SPEER NE N RAW DATA ERROR DATA AVERAGING ARRAYS CORRECT ION ARRAYS MATH Een ERROR MEMORY COEFFICIENT ARRAYS ARRAY GATING ELECTRICAL CONVERSION TRANSF ORM FORMAT OPT 010 DELAY OPT 010 SS FORMAT OFFSET DISPLAY ARRAYS SCALE MEMORY MARKERS LIMIT TESTING SMOOTHING pb6101d Figure 4 4 Data Processing Flow Diagram 1 Press SAVE RECALL SELECT 2 Choose one of the following disk drives a INTERNAL DISK EXTERHHE DIZE 3 Press SAVE RECALL DEF 4 Define the save by selecting one of the following choices a DATA ARRAY GE ARRA F RMHT A GEHFHIC OH When ON the other choices are ignored D ISKESSBHWE Note If you select ER T A HHL OH you cannot recall and display the file contents on the analyzer This type of data is intended for computer manipulation GATA DH always saves corrected data Printing Plotting and Saving Measurement Results 4 11 5 Choose the type of format you want Choose SAVE HSIHG BIHARY for all applications except CITIFILE S2P or CAE applications a Choose USI HG AS for CITIFILE S2P and CAE applications or when you want to import the information into a spread sheet format TUEN SAYE STATE
46. 00 Ga E LIMIT TYPE FLAT LI HE AED STIMULUS VALUE 160 DONE LIMIT TYPE SINGLE POINT RETUEH log MAG 18 dB REF 5 dB CENTER 134 000 BBA MHz SPRN 50 000 908 MHz aw000011 Figure 2 8 Example Flat Limit Lines Making Measurements 2 15 Creating Sloping Limit Line This example procedure shows you how to make limits that test the shape factor of a SAW Elter The following limits are set Frequency ise Power Range 123 MHz to 125 2 65 dB to 26 dB 144 MHz to 146 2 26 dB to 65 dB 1 lb access the limits menu and activate the limit lines press AR LIST YES 2 1 establish the start frequency and limits for a sloping limit line that tests the low side of the filter press Gz3 UD MIT HG L IHE RETURN 3 Ib terminate the lines and create a sloping limit line press E LIMIT TYPE ADD STIMULUS VALUE 125 UPPER LI LOWER LIMIT LIMIT SIHGLE 2 16 Making Measurements 4 Ib establish the start frequency and limits for a sloping limit line that tests the high side of the Elter press MIT T LIMIT SLOPIHG LINE RETURH lb terminate the lines and create a sloping limit line press LIMIT CUIMIT PE
47. 1 MHz 31 to 61 MHz 61 to 121 MHz 121 MHz to 178 MHz 178 MHz to 296 MHz 296 MHz to 536 MHz 536 MHz to 893 MHz 893 MHz to 1 607 GHz 1 607 GHz to 3 GHz 12 Option 006 3 GHz to 4 95 GHz 13 Option 006 4 95 GHz to 6 GHz To Set the Auto Sweep Time Mode a Press Menu SHE EF ME 0 to re enter the auto mode Optimizing Measurement Results 5 13 Widen the System Bandwidth 1 Press IF 2 Set the IF bandwidth to change the sweep time 6000 0 077 1 Preset condition CF 1GHz Span 100MHz includes retrace time To Reduce the Averaging Factor 1 Press AVG FACTOR 2 Enter an averaging factor that is less than the value displayed on the analyzer screen and press xl 6 14 Optimizing Measurement Results Reduce the Number of Measurement Points 1 Press Menu HUMBE 2 Enter a number of points that is less than the value displayed on the analyzer screen and press xl The analyzer sweep time does not change proportionally with the number of points but as indicated below Number pre Time secs of Points 1 Preset condition CF 1GHz Span 100MHz Correction off includes retrace time Measurement speed can be improved by selecting the widest IF BW setting of 6000 Hz To Set the Sweep Type 1 Press SWEEP MENU 2 Select the sweep type Optimizing Measurement Results 5 15 To Activate Chop Sweep Mode Press C
48. 1 frequency segments in the swept list table overlapped Change the frequency ranges of the overlapping segments and switch back to swept list mode PHRHLLEL PORT HOT AYA ITLABLE FOR Error Number You have defined the parallel port as COPY for 165 sequencing in the HP IB menu lb access the parallel port for general purpose I O GPIO set the selection to GPIO PHRHLLEL PORT HOT AYA TLABLE FOR COPY Error Number You have defined the parallel port as general purpose 167 I O GPIO for sequencing The definition was made under the key menus lb access the parallel port for copy set the selection to PARALLEE Error Messages 7 23 PHASE LOCK CAL FRILED Error Number An internal phase lock calibration routine is 4 automatically executed at power on preset and any time a loss of phase lock is detected This message indicates that phase lock calibration was initiated and the first IF detected but a problem prevented the calibration from completing successfully Refer to the HP 8753E Network Analyzer Service Guide and execute pretune correction test 48 This message may appear if you connect a mixer between the RF output and R input before turning on frequency offset mode Ignore it it will go away when you turn on frequency offset This message may also appear if you turn on frequency offset mode before you define the offset PHASE LOCK FA Error Number The first IF signal was detect
49. 6 Press Fi Recalling an Instrument State 1 Press SELE 2 Choose from the following storage devices ME MORY a EXTERNAL DIS 3 Press the D repeatedly until the name of the Ele that you want to recall is high lighted 4 Press FECALE STHTE 412 Printing Plotting and Saving Measurement Results 5 Optimizing Measurement Results Increasing Measurement Accuracy Connector Repeatability m Inspect the connectors Clean the connectors Gauge the connectors a Use correct connection techniques Interconnecting Cables a Inspect for lossy cables Inspect for damaged cable connectors a Practice good connector care techniques m Minimize cable position changes between error correction and measurements Temperature Drift Use temperature controlled environment a Ensure the temperature stability of the calibration devices Avoid handling the calibration devices unnecessarily during calibration Ensure the ambient temperature is 1 of measurement calibration temperature Optimizing Measurement Results 5 1 Frequency Drift a Override internal crystal with a high stability external source frequency standard or use the internal frequency standard Performance Verification Perform a measurement verification at least once per year Reference Plane and Port Extensions Use the port extension feature to compensate for the phase shift of an exten
50. ASS FREQ LIMITS CHRHGED Information The frequency domain data points must be Message harmonically related from dc to the stop frequency That is stop n x start where n number of points If this condition is not true when a low pass mode step or impulse is selected and transform is turned on the analyzer resets the start and stop frequencies The stop frequency is set close to the entered stop frequency and the start frequency is set equal to stop n MEMORY FOR CURREHT SEQUENCE IS FULL Error Number All the memory in the sequence you are modifying is 132 filled with instrument commands MORE SLIDES HEEDED Error Number When you use a sliding load in a user defined 71 calibration hit you must set at least three slide positions to complete the calibration Error Messages 7 19 CALIBRATION CURREHTL PROGRESS Error Number The RESUME SE E softkey is not valid 69 unless a calibration is already in progress Start a new calibration DISK MEDIUM IH DRIVE Error Number You have no disk in the current disk unit Insert a disk 41 or check the disk unit number stored in the analyzer FAIL F LlHD Service Error The self diagnose function of the instrument operates Number 114 an internal test failure At this time no failure has been detected FILES F UHD OW DISK Error Number files of the type created by an analyzer store 45 operation were found on t
51. About this Manual We ve added this manual to the Agilent website in an effort to help you support your product This manual is the best copy we could find it may be incomplete or contain dated information If we find a more recent copy in the future we will add it to the Agilent website Support for Your Product Agilent no longer sells or supports this product Our service centers may be able to perform calibration if no repair parts are needed but no other support from Agilent is available You will find any other available product information on the Agilent Test amp Measurement website www tm agilent com HP References in this Manual This manual may contain references to HP or Hewlett Packard Please note that Hewlett Packard s former test and measurement semiconductor products and chemical analysis businesses are now part of Agilent Technologies We have made no changes to this manual copy In other documentation to reduce potential confusion the only change to product numbers and names has been in the company name prefix where a product number name was HP XXXX the current name number is now Agilent XXXX For example model number HP8648A is now model number Agilent 8648A Quick Reference Guide HP 8753E Network Analyzer HP Part No 08753 90368 Supersedes January 1998 Printed in USA October 1998 The information contained in this document is subject to change without notice Hewlett
52. An HP IB copy was already in progress when you 169 requested the HP IB for another function lb abort the first copy press Local otherwise the HP IB is unavailable until the first copy is completed IF BH KEY DISABLED EDIT LIST MODE TEL Information When list IF bandwidth has been enabled and swept list Message mode is on you will not be able to change the IF bandwidth using the I F key lb change the bandwidth edit the swept list table ILLEGAL UHI T OR VOLUME HUMBER Error Number disk unit or volume number set in the analyzer is 46 not valid Refer to the disk drive operating manual 7 16 Error Messages INIT DISK removes all data from disk Information Continuing with the initialize operation will destroy any Message data currently on the disk INITIALIZATION FAILED Error Number The disk initialization failed probably because the disk 47 is damaged I HSTRUMEHT STATE MEMORY CLEARED Error Number All instrument state registers have been cleared from 56 memory along with any saved calibration data memory traces and calibration kit definitions Additionally all user settable selections such as HP IB addresses are set to their defaults I HSUFF I CIEHT MEMORY Error Number Your last front panel or HP IB request could not be 51 implemented due to insufficient memory space In some cases this is a fatal error from which you can escape only by presetting the instrument HSU
53. BE a 1 L 1 LO et ef feel Jet o oa o 3 3 3 3 o MHRKER STOR Marker MHRKER 1 MAREER MARKER amp MHRKER HARKER 5 MHRKER 7 1 OFF AREER HARKERS CONTINUOUS Uu 7 lt n ct et o 3 3 a 6 12 Softkey Locations Table 6 1 Softkey Locations continued Front P anel Access K ey Marker Marker call 2 lt lt n oe 3 Ali 5 5 w 3 mi gm Marker Fctn Marker wn a et 3 E 2 Ll o 2 OFFSET Softkey Locations 6 13 Table 6 1 Softkey Locations continued Softkey Front Panel Access Key E 1 9 9 2 lt La o WM o1 lo Uv Uv lt a 3 5 5 5 lo alla 3 lt lt 5 3 1 DUT CREE SELECT H HUM MEMORY TERT ERIPHEERL HPI E SHHSE PHASE OFFSET SLUT L T DATA UH off PLOT GEAT off SLOT MEM off PLOT MER off M Ke Oj IQ JO o o o o lt lt 614 Softkey Locations Table 6 1 Softkey Locations continued Softkey FLOT SE i E 3 FEOT TEST aff PLOTTER BAUG RATE PLOTTER FORM FEED PLOTTER FORT PORT PISK FLTR PORT HEFTE ELTE PORT P FORT SERIAL E F POLAR POLAR MER BURT PORT FH
54. E TO MTR HPIB TITLE TO PERIFHERHL TITLE TB 1 OFF Marker Fctn BOHE TRANS FUG 821 Beko TRANS REY 512 Bees TRAHSFORM cmn OFF TRAHSMISSIOH 170 Bey E 3 t CA 6 22 Softkey Locations Table 6 1 Softkey Locations continued Softkey Front P anel Access K ey e PORT 1 OPTION 2 HIGH LOW Seq Seq Seq Local e SEHSOR A ELOCITY FACTOR VIEW MEASURE VOLUME HUMBER VOLUME HUMBER HAIT x 5 I 1 HAVEGUIDE WAWEGUIDE DELAY WIDE VALUE Marker Fctn HIDTHS ORF Marker Fctn ue Uu lt 4 0 2 3 o Nn La 1924 o lt 9 fo o 3 m Softkey Locations 623 Table 6 1 Softkey Locations continued Softkey Front P anel Access K ey HIHDOMH WINDOW MAXIMUM MINTMUM WINDOW NORMAL CUNTRESES REFL TE OCTRANS REFL eo TRANS wn lt lt a al fa et et 2 ia 3 31 3 6 24 Softkey Locations Error Messages Error Messages in Alphabetical Order This chapter contains an alphabetical listing of all error messages to help you interpret any error messages that my be displayed on the analyzer or transmitted by the instrument over HP IB 2 PORT CAL REGU I RED FOR RUX CHRHHEL USE Erro
55. Error Correction for Transmission M easurements 3 lb measure the standard press THRU Response and Isolation Error Correction for Transmission Measurements This procedure is intended for measurements that have a measurement range of greater than 90 dB 1 Select the type of measurement you want to make 2 lb select a response and isolation correction press CAL I BRATE MENU RESPONSE amp I SOL N RESPONSE 3 Make a thru connection between the points where you will connect your device under test 4 lb measure the standard when the displayed trace has settled press THRU 5 4 Optimizing Measurement Results 5 Connect impedance matched loads to PORT 1 and PORT 2 as shown in Figure 5 3 Include the adapters that you would include for your device measurement POSSIBLE ADAPTERS 13 5 3 Standard Connections for Response and Isolation Error Correction for Transmission M easurements 6 lb help remove crosstalk noise set the analyzer as follows a Press AVERAGING AVERAGING FACTOR and enter at least four times more averages than desired during the device measurement b Press MORE ALTERNATE A amp rid to eliminate crosstalk path 7 Ib measure the calibration standard press RESUME CAL SEGUEHEE I SOL H STD 8 Return the averaging to the original state of the measurement For example reduce the averaging factor by at least four tunes or turn averaging off
56. FF ICI EHT MEMORY Error Number There is not enough memory available for the print or 168 plot function Increase the available memory by changing or eliminating a memory intensive operation such as reducing the number of points in the sweep Error Messages 7 17 INSUFFICIENT MEMORY MTR CAL OFF Error Number There is not enough memory space for the power meter 154 calibration array Increase the available memory by clearing one or more save recall registers or by reducing the number of points IHVRLID Error Number You pressed an undefined softkey 2 LIMIT THBLE EMPTY Error Number Limit lines cannot be turned on unless a limit table has 205 been created Refer to Testing a Device with Limit Lines in Chapter 2 for information on how to create a limit table LIST MODE OFF TH VAL IO HITHLO FREQ Error Number List mode has been turned off in the frequency offset 182 mode because it is incompatible with your selected LO frequency LIST THBLE Error Number frequency list is empty Ib implement list 9 frequency mode add segments to the list table 7 18 Error Messages LOG SWEEP REBLI TRES 2 OCTAVE MINIMUM SPAH Error Number A logarithmic sweep is only valid if the stop frequency 150 is greater than four times the start frequency For frequency spans of less than two octaves the sweep type automatically reverts to linear sweep LOW F
57. K CURE EACH SHEEP EDIT LIMIT t TT LIST ZLECTRICAL DELAY zMIT HD OF LABEL END SHEEP HIGH PULSE ND SWEEP LOW PULSE ERASE TITLE 5 TITEE TITLE AUTO Front Panel Access Key Loca Save Recal Marker Fctn Oj ol a a lt el cl o o Seq Uu LO gt Ue o 115115 Display Save Recal System Softkey Locations 6 7 Table 6 1 Softkey Locations continued Softkey Front P anel Access Key ENT TRIG ON P S OW SHEEP INPUT A TOH INPUT B Oc fo BORE 3 2 ave Recall Save Recall Save Recall EE STIMULUS VALUE corp OFF Save Recall Save Recall Save Recall FORMAT LIF FORMAT EST DISK ave Recall FORMAT IHT DISE Save Recal FORMAT IHT MEMORY OFFS Cal Save Recall Save Recall Save Recall Save Recall Save Recall Save Recall FREGUEHC 6 8 Softkey Locations Table 6 1 Softkey Locations continued Softkey FWD Gti Gh ps on OFF GRATICULE 1 GERTICULE TEXT HARMOHIC MEAS OFF HARMOHIC SECOND HAR NORE THIRD Front Panel Access Key SS jalia 2 iz D System 2 Save Recal Display System Seq Softkey Locations 6 9 Table 6 1 Softkey Locations continued Softkey Front P anel Access K ey
58. Packard makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness 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 1998 Hewlett Packard Company Regulatory Information The regulatory information is in the User s Guide supplied with the analyzer Safety Warranty and Assistance Refer to the User s Guide for information on safety warranty and assistance HP 87533 Network Analyzer Documentation Map f N N The Installation and Quick Start Guide familiarizes you with the HP 8753E Option 011 network analyzer s front and rear panels electrical and environmental operating requirements as well as procedures for installing configuring and verifying the operation of the analyzer The User s Guide shows how to make measurements explains commonly used features and tells you how to get the most performance from your analyzer The Quick Reference Guide provides a summary of selected user features The HP IB Programming and Command Reference Guide provides programming information for operation of the network analyzer under HP IB control The HP BASIC Programming Examples Guide provides a tutorial introduction using BASIC programming examples to de
59. R LOOUE PORT PUR FEWER FIBER POWER SWEEP LOSS POWERMTRE 7 RRHGES POWER SHEEP PRESET FACTORY FRESET USER PREVIOUS FAGE COLOR Front P anel Access K ey ml fc fel fel fc fe fc fa fo Jo Jo Jol tol o 15111191151 S119 amp e amp e et 0 fo Y 2 a lt e 8 5 et et 3 Softkey Locations 6 15 Table 6 1 Softkey Locations continued Softkey Front Panel Access Key Loca EE S an OFF PHE RANGE AUTO CAL FHRMTR CA 18 IE E E S zeje 5 TO ARRAY on OFF i 2 lt o i 5 3 3 2 a RAL ET OH Off System Marker 6 16 Softkey Locations Table 6 1 Softkey Locations continued CAL POR CAL PORT 2 CAL SETS COLORS on OFF ALUE Mises EFL REFLECTIOW SE SRVE STATE RESET COLOR RESPOHSE S11 CARY Front P anel Access K ey TM 00 Two On e merge m ig ie v ie ie eie Ies j l ll il il ilsils il lisilsils il2 Z i 3 jo 01 01 5 3 v to D D PO D 2 I2 21 224 1
60. RKER 5 The display will appear similar to Figure 2 5 2 1998 12 09 43 CHL LOG 2 5 dB REF 2 dB CH2 106 10 dB REF 50 dB 811 4 1 4060 d8 151 509 508 MHz 21 4 69 313 dB 151 509 500 MHz MARKER 1 ttt 5095 2 Markers Be 1 1 0169 dB S L 6 88200 MHz 2 HH 942242 3 i 4 CENTR 134 000 MHz SPAN 45 000 MHz CENTR 134 000 MHz SPAN 45 000 MHz CH3 LOG 10 dB REF 50 dB CH4 106 3 dB REF 2 5 dB 12 4 71 254 08 151 509 500 MHz 22 4 2 1148 dB 151 509 500 MHz 5 LT CH3 Markers 4 75 952 dB all 2 23 188 dB OFF 9 46850 MHz 5 97600 MODE MENU MKR ZERO CENTR 134 000 MHz SPAN 45 008 MHz 134 000 MHz SPAN 45 000 MHz Figure 2 5 Markers before Pressing the Backspace Key Making Measurements 2 11 2 Press The display will appear similar to Figure 2 6 Notice that the marker information has moved off of channels 2 and 4 graticules and into the softkey display area LOG 5 dB REF 2 dB 511 4 1 4031 dB 151 509 500 MHz CH1 Markers 1 1 0229 dB 6 88200 MHz 21 3 1803 dB 46858 MHz PAT 134 000 MHz SPAN 45 000 MHz CH3 LOG 0 dB REF 5 12 43 78 2 d8 151 509 Soe Markers 1 75 661 48 6 88200 MHz 2 23 316 dB 29 4685 MHz CENTR 134 000 MHz SPAN 45 000 MHz 31 22 928
61. Time Mode To Widen the System Bandwidth Tb Reduce the Averaging Factor Ib Reduce the Number of Measurement Points Set the Sweep Ib Activate Chop Sweep Mode Ib Use Fast 2 Port Calibration Increasing Dynamic Range Increase the Test Port Input Rower Reduce the Receiver Noise Floor Change System Bandwidth Change Measurement Averaging Reducing Trace Noise Activate Averaging Change System Bandwidth Reducing Receiver Crosstalk 6 Softkey Locations 7 Error Messages Error Messages in Alphabetical Order Index Contents 4 5 13 5 13 5 14 5 14 5 15 5 15 5 16 5 16 5 17 5 17 5 17 5 17 5 17 5 18 5 18 5 18 5 18 Figures 11 87533 Front Panel 1 1 1 2 Analyzer Display Single Channel Cartesian Format 1 4 1 3 BP 87533 Rear Panel 1 9 2 1 Basic Measurement Setup 2 2 2 2 Four Parameter Display 2 5 2 3 Marker 1 as the Reference Marker 2 9 2 4 Example Statistics of Measurement Data 2 10 2 5 Markers before Pressing the Backspace Key 2 11 2 6 Markers after Pressing the Backspace Key 2 12 2 7 Example Flat Limit Line 2 14 2 8 Example Flat Limit Lines 2 15 2 9 Sloping Limit Lines 2 17 2 10 Example Single Point Limit Lines
62. a Markers and Statistics Search for a Specific Amplitude Searching for the Maximum Amplitude Searching for the Minimum Amplitude Markers and the Backspace Key BO bo Bo BO 3 O O Ot i wow oo hoch Boon Bo 2 9 2 10 2 10 2 10 2 1 Contents 1 Ib Move Marker Information off of the Graticules 2 11 To Move Marker Information back onto the Graticules 2 12 Testing Device with Limit Lines 2 13 Creating Flat Limit Lines 2 13 Creating a Sloping Limit 2 16 Creating Single Point Limits 2 18 Editing Limit 2 20 Deleting Limit Segments 2 20 Running a Limit 2 21 Reviewing the Limit Line Segments 2 21 Activating the Limit 2 21 Measuring Gain Compression 2 22 Measurements using the Swept List Mode 2 27 Connect the Device Under Test 2 28 Observe the Characteristics of the Filter 2 29 Choose the Measurement Parameters 2 30 Set Up the Lower Stop Band Parameters 2 30 Set Up the Pass Band Parameters 2 30 Set Up the Upper Stop Band Parameters 2 31 Calibrate and Measure 2 31 3 Making Mixer Measurements Measurement Considerations 3 Minimizing Source and Load Mism
63. a new limit line press ACE The analyzer generates a new segment that appears on the center of the display 3 To specify the limits stimulus value test limits upper and lower and the limit type press t ACE ER LIMIT LOWER POHE MIT Note You could also set the upper and lower limits by using the VALUE and LIMITS keys lb use these keys for the entry press MIDDLE VALUE DELTA LIMITS This would correspond to a test specification of 24 3 dB 4 lb define the limit as a flat line press IT IHE TURN Making Measurements 2 13 5 lb terminate the flat line segment by establishing a single point limit press ABD ULUS VALUE 149 Figure 2 7 shows the flat limit lines that you have just created with the following parameters stimulus from 127 MHz to 140 MHz upper limit of 21 dB lower limit of 27 dB CENTER 134 900 080 MHz SPAN 58 003 088 aw000010 Figure 2 7 Example Flat Limit Line 6 Ib create a limit line that tests the low side of the filter press STIMULUS VRLUE UPPER LIMIT LOWER LIMIT LIMIT LINERETURN ADD STIMULUS VvRLUE 123 M g DOHE LIMIT TYPE SINGLE FO MT EETUEH 2 14 Making Measurements 7 To create limit line that tests the high side of the bandpass filter press Al ALUE 146 LIMIT 22
64. al MORE CHOP A arid B To Use Fast 2 Port Calibration With the 2 port calibration on faster measurements may be made by not measuring the reverse path for every forward sweep This is controlled by the test set switch command 1 access the test set switch functions press MORE TEST SET SW 2 lb activate the hold mode press 0 The analyzer will then display TEST SET 3 Ib enter the number of sweeps mode press The analyzer will then display T ES SET SH SHEEPS 5 16 Optimizing Measurement Results Increasing Dynamic Range Increase the Test Port Input Power Press Menu F amp WE and enter the new source power level followed by xl Caution TEST PORT INPUT DAMAGE LEVEL 26 dBm Reduce the Receiver Noise Floor Change System Bandwidth Each tenfold reduction in IF receiver bandwidth lowers the noise floor by 10 dB 1 Press Avg IF 2 Enter the bandwidth value that you want followed by xl Change Measurement Averaging 1 Press AVERAG IAGRAGT 2 Enter a value followed by xl 3 Press AVERAGING Optimizing Measurement Results 5 17 Reducing Trace Noise Activate Averaging 1 Press AVER i FHETOR 2 Enter a value followed by x1 3 Press AVERAGLHG OH Change System Bandwidth 1 Press Avg IF 2 Enter the IF bandwidth value that you want followed by xl Reducing Receiver Crosstalk Set the a
65. asured internally at the R channel is 16 dB lower than that of the source To compensate for these losses the traces associated with the R channel have been offset 16 dB higher As a result power measured directly at the R channel via the R CHANNEL IN port will appear to be 16 dB higher than its actual value If power meter calibration is not used this offset in power must be accounted for with a receiver calibration before performing measurements 3 4 Making Mixer Measurements Power Meter Calibration Mixer transmission measurements are generally configured as follows measured output power Watts set input power Watts OR measured output power dBm set input power dBm For this reason the set input power must be accurately controlled in order to ensure measurement accuracy Higher measurement accuracy may be obtained through the use of power meter calibration You can use power meter calibration to correct for power offsets losses and flatness variations occurring between the analyzer source and the input to the mixer under test Making Mixer Measurements 3 5 Conversion Loss using the Frequency Offset Mode Conversion loss is the measure of efficiency of a mixer It is the ratio of side band IF power to RF signal power and is usually expressed in dB Express ratio values in dB amounts to a subtraction of the dB power in the denominator from the dB power in the numerator The mixer translates the incoming signal
66. atches 3 1 Reducing the Effect of Spurious Responses 3 2 Eliminating Unwanted Mixing and Leakage Signals 3 2 How RF and IF Are Defined 2 3 2 Frequency Offset Mode Operation 3 4 Differences Between Internal and External R Channel Inc ME 3 4 Power Meter Calibration 3 5 Conversion Loss using the Frequency Offset Mode 3 6 High Dynamic Range Swept Conversion Loss 3 12 Conversion Compression using the Frequency Offset Mode 3 16 Isolation Example Measurements 3 21 LO to IF 3 22 RF Feedthrough 3 23 Contents Z 4 Printing Plotting and Saving Measurement Results Configuring a Print Function 2 4 1 Defining a Print Function 4 9 If You Are Using Color Printer 2 4 2 Ib Reset the Printing Parameters to Default Values 4 2 Configuring a Plot Function If You Are Plotting to an HPGL 2 Compatible Printer If You Are Plotting to a Pen Plotter If You Are Plotting to a Disk Drive Defining a Plot Function 2 Choosing Display Elements Selecting Auto Feed Selecting Pen Numbers and Colors Selecting Line Choosing Scale lo Choosing Plot lb Reset the Plotting Parameters to Default Values If You Are Plotting to an HPGL C
67. changed Also the active entry and stimulus values will change to the color of the active channel 2 6 Making Measurements To Save a Data Trace to the Display Memory Press PATA To View the Measurement Data and Memory Trace 1 To view a data trace that you have already stored to the active channel memory press Display 2 To view both the memory trace and the current measurement data trace press Making Measurements 2 7 Divide Measurement Data by the Memory Trace 1 You must have already stored a data trace to the active channel memory 2 Press Display DA AMER To Subtract the Memory Trace from the Measurement Data Trace 1 You must have already stored a data trace to the active channel memory 2 Press Display SHEN To Ratio Measurements in Channel 1 and 2 1 Press Ohi Menu BF NTS 2 Press Gia Heru MEEA n ter the same value that you observed for the channel 1 setting 3 Press MORE and set gt TO Ge on OFF to To Title the Active Channel Display 1 Press MORE TETE to access the title menu Press ERASE I TLE and enter the title you want for your measurement display Use an external keyboard or the analyzer front panel 2 8 Making Measurements Using Markers To Activate Display Markers Press MARKER Delta Markers and Statistics MEF 1 to make marker 1 a referenc
68. completed outputting data to the Message printer or plotter The analyzer can now accept another copy command CORRECTION AHC RESET Error Number When you change the frequency range sweep type or 65 number of points error correction is switched off and the time domain transform is recalculated without error correction You can either correct the frequency range sweep type or number of points to match the calibration or perform a new calibration Then perform a new time domain transform 7 8 Error Messages CORRECTION COHSTHHTE HOT STORED Error Number A store operation to the EEPROM was not successful 3 You must change a switch position on the 9 CPU assembly Refer to the A9 CC Switch Position Procedure in the Adjustments and Correction Constants chapter of the HP 8753E Network Analyzer Service Guide CORRECTION AUS 33 RESTORED Error Number This message is displayed when a calibration is restored 214 and that calibration previously had one or both auxiliary channels enabled CORRECTION TURHED OFF Error Number Critical parameters in your current instrument state do 66 not match the parameters for the calibration set therefore correction has been turned off The critical instrument state parameters are sweep type start frequency frequency span and number of points CURREHT PARAMETER IH CAL SET Error Number Correction is not valid for your selected measu
69. ded measurement reference plane due to such additions as cables adapters and Extures after completing an error correction procedure or when there is no active correction Press MORE PORT EXTENS I Of enter the delay to the reference plane IOHS Then 5 2 Optimizing Measurement Results Measurement Error Correction Clarifying Type N Connector Sex When you are performing error correction for a system that has type N test port connectors the softkey menus label the sex of the test port connector not the calibration standard connector For example the label SHORT amp F 3 refers to the short that will be connected to the female test port Response Error Correction for Reflection Measurements 1 Select the type of measurement you want to make 2 lb select a response correction press CALIBRATE RESPONSE TEST PORT CABLES AIL ias 1 1 SHORT OPEN SHORT OPEN FOR 511 RESPONSE FOR S 22 RESPONSE pg610e Figure 5 1 Standard Connections for a Response Error Correction for Reflection Measurement 3 Ib measure the standard when the displayed trace has settled press SHORT Optimizing Measurement Results 5 3 Response Error Correction for Transmission Measurements 1 Select the type of measurement you want to make 2 lb select a response correction press POSSIBLE ADAPTERS 46116 5 2 Standard Connections for Response
70. disk drive that is external to the analyzer Printing Plotting and Saving Measurement Results 4 5 Defining Plot Function Note The plot definition is set to default values whenever the power is cycled However you can save the plot definition by saving the instrument state 1 Press DEFINE PLOT Choosing Display Elements 2 Choose which of the following measurement display elements that you want to appear on your plot TIME DATE Tt Ape 1994 00 52 13 TEXT MARKER ON CHI Sit m 3 VREF mU 3 Ey ER i DATA REFERENCE LINE a CHI START 1 078 STOP 1 505 pg6 1509 Figure 4 1 Plot Components Available through Definition Selecting Auto Feed 3 Press HUT FEED until the correct choice is highlighted a Choose FEED OH if you want a page eject sent to the plotter or HPGL compatible printer after each time you press a Choose Q7 FEED if you want multiple plots on the same sheet of paper Note The peripheral ignores HUT FEED when you are plotting to a quadrant 4 6 Printing Plotting and Saving Measurement Results Selecting Pen Numbers and Colors 4 Press and select plot element where you want to change the pen number For example press FE GAT Aand then modify the pen number The pen number selects the color if you are plotting to an HPGL 2 compatible color
71. e available as described in Using Display Functions in Chapter 2 When multiple channels are superimposed or displayed in separate graticules information is arranged as follows a Channel s displayed and measurement parameter s are at the top of each graticule a Stimulus frequency information is at the bottom of each graticule a Marker information when selected is on the right side of each graticule 1 4 HP 87633 Front and Rear Panel Stimulus Start Value This value could be any one of the following e The start frequency of the source in frequency domain measurements The start time CW mode 0 seconds or time domain measurements The lower power value in power sweep When the stimulus is in center span mode the center stimulus value is shown in this space Stimulus Stop Value This value could be any one of the following The stop frequency of the source in frequency domain measurements a The stop time in time domain measurements or CW sweeps e The upper limit of a power sweep When the stimulus is in center span mode the span is shown in this space The stimulus values can be blanked For CW time and power sweep measurements the CW frequency is displayed centered between the start and stop times or power values Status Notations This area shows the current status of various functions for the active channel The following notations are used Avg Sweep to sweep averagin
72. e marker 2 Move marker 1 to any point that you want to reference 3 PressMARKER 2 and move marker 2 to any position that you want to measure in reference to marker 1 S2 tog MAG 10 dB REF 50 dB 2 2 9117 dB CENTER 134 000 OBA MHz PAN BBG aaa MHz aw000032 Figure 2 3 Marker 1 as the Reference Marker Making Measurements 2 9 4 Press Marker MEHU SEATS OH to calculate and display the statistics of the measurement data between the active marker and the delta reference marker 521 og MAG 20 dB REF dB 2 3 7131 dB 26 04 up Ree ie We CENTER 125 000 000 MHz SPAN 120 000 008 MHz Figure 2 4 Example Statistics of Measurement Data Search for a Specific Amplitude Searching for the Maximum Amplitude 2 Press SEARCH MAH Searching for the Minimum Amplitude PressS Markeri HARE ERC H EH 2 Press 2 10 Making Measurements Markers and the Backspace Key Besides modifying entries and test sequences the backspace key has a second function it toggles the softkey display on and off and if more than one marker is active moves the marker information off of the graticules and into the softkey area This function makes data traces and marker information easier to view To Move Marker Information off of the Graticules 1 Activate markers 1 through 5 Press Market MARKER g h MA
73. e the scale of channel 2 to 10 dB per division 22 Press to change the scale of channel 1 to 1 dB per division Note A receiver calibration will improve the accuracy of this measurement Refer to Chapter 5 Optimizing Measurement Results 23 Press Marker HA MODE MEHU MAREERS COUPLED 24 Ib find the 1 dB compression point on channel 1 press SEA Marker s TBRGET Notice that the marker on channel 2 tracked the marker on channel 1 25 Press han2 Marker MER lt EE 26 lb take the channel 2 marker out of the A mode so that it reads the absolute output power of the amplifier in dBm press MODE thENUA MODE F Making Measurements 2 25 9956 dB REF 19 01 dB x tr 2 7 6474 dB dBv REF 0 dB Figure 2 13 Gain Compression using Power Sweep 2 26 Making Measurements Measurements using the Swept List Mode Stepped List Mode In this mode the source steps to Swept List Mode each defined frequency point stopping while data is taken This mode eliminates IF delay and allows frequency segments to overlap However the sweep time can be substantially slower than for a continuous sweep with the same number of points This mode takes data while sweeping through the defined frequency segments increasing throughput by up to 6 times over a stepped
74. ed have been received If You Are Using a Color Printer 1 PressFRIHT COLORS 2 lf you want to modify the print colors select the print element and then choose an available color Note You can set all the print elements to black to create a hardcopy in black and white Since the media color is white or clear you could set a print element to white if you do not want that element to appear on your hardcopy To Reset the Printing Parameters to Default Values 1 Press DEFINE PRINT DEF T SETUP 4 2 Printing Plotting and Saving Measurement Results Configuring Plot Function If You Are Plotting to an HPGL 2 Compatible Printer 2 Press SET ADDRESSES PRIHTER PORT and then press E 1 until the correct printer choice appears 3 Configure the analyzer for one of the following printer interfaces a Choose FRH EGRT E if your printer has an HP IB interface a Enter the HP IB address of the printer followed by x1 Press SYSTEM CONTROLLER or USE PASS CONTROL 1 if your printer has a parallel centronics interface m Choose SER IRE if your printer has a serial RS 232 interface and then configure the print function as follows a PressP RINTE BAHE E and enter the printer s baud rate followed by xl b Ib select the transmission control method that is compatible with your printer press CHTEL transmit control
75. ed at pretune but phase 7 lock could not be acquired Refer to the HP 8753E Network Analyzer Service Guide for troubleshooting PHASE LOCK LOST Error Number Phase lock was acquired but then lost Refer to the 8 HP 8753E Network Analyzer Service Guide for troubleshooting information PLOT ABORTED Error Number When you press the key the analyzer aborts the 27 plot in progress 7 24 Error Messages PLOTTER nat on nat connect wrong addrz Error Number plotter does not respond to control Verify power 26 to the plotter and check the HP IB connection between the analyzer and the plotter Ensure that the plotter address recognized by the analyzer matches the HP IB address set on the plotter itself PLOTTER I HCH WHEELS UP Error Number plotter pinch wheels clamp the paper in place If 28 you raise the pinch wheels the plotter indicates a not ready status on the bus POSSIBLE FALSE LOCK Error Number Phase lock has been achieved but the source may be 6 phase locked to the wrong harmonic of the synthesizer Perform the source pretune correction routine documented in the Adjustments and Correction Constants chapter in the HP 8753E Network Analyzer Service Guide POWER METER Error Number The power meter indicates an out of range condition 116 Check the test setup Error Messages 7 25 METER HOT SETTLED Error Number Sequential power
76. ed receiver mode a frequency offset mode a test sequence function harmonic measurements Option 002 time domain transform Option 010 HP IB STATUS indicators are also included in this block key This key returns the instrument to either a known factory preset state or a user preset state that can be defined Refer to the Preset State and Memory Allocation chapter for a complete listing of the instrument preset condition PROBE POWER connector This connector fused inside the instrument supplies power to an active probe for in circuit measurements of ac circuits R CHANNEL connectors These connectors allow you to apply an input signal to the analyzer s R channel for frequency offset mode PORT 1 and PORT 2 These ports output a signal from the source and receive input signals from a device under test PORT 1 allows you to measure 912 and S11 PORT 2 allows you to measure 521 and 555 HP 87533 Front and Rear Panel 1 3 Analyzer Display 644 Figure 1 2 Analyzer Display Single Channel Cartesian Format The analyzer display shows various measurement information The grid where the analyzer plots the measurement data The currently selected measurement parameters The measurement data traces Figure 1 2 illustrates the locations of the different information labels described below In addition to the single channel display shown in Figure 1 2 multiple graticule and channel displays ar
77. front panel keyboard Power cord receptacle with fuse For information on replacing the fuse refer to the HP 8753E Network Analyzer Installation and Quick Start Guide or the HP 8753E Network Analyzer Service Guide HP 87633 Front and Rear Panel 1 9 10 11 12 13 14 15 16 Line voltage selector switch For more information refer to the HP 87533 Network Analyzer Installation and Quick Start Guide Fan This fan provides forced air cooling for the analyzer 10 MHZ PRECISION REFERENCE OUTPUT Option 1D5 10 MHZ REFERENCE ADJUST Option 1D5 EXTERNAL REFERENCE INPUT connector This allows for a frequency reference signal input that can phase lock the analyzer to an external frequency standard for increased frequency accuracy The analyzer automatically enables the external frequency reference feature when a signal is connected to this input When the signal is removed the analyzer automatically switches back to its internal frequency reference AUXILIARY INPUT connector This allows for a dc or ac voltage input from an external signal source such as a detector or function generator which you can then measure using the S parameter menu You can also use this connector as an analog output in service routines as described in the service manual EXTERNAL AM connector This allows for an external analog signal input that is applied to the ALC circuitry of the analyzer s source This input analog signal ampl
78. g is on The averaging count is shown immediately below Cor Error correction is on For error correction procedures refer to Chapter 5 Optimizing Measurement Results HP 87533 Front and Rear Panel 1 5 C Stimulus parameters have changed from the error corrected state or interpolated error correction is on For error correction procedures refer to Chapter 5 Optimizing Measurement Results C2 Full two port error correction is active and either the power range for each port is different uncoupled or the TESTSE T SW H L Gis activated The annotation occurs because the analyzer does not switch between the test ports every sweep under these conditions The measurement stays on the active port after an initial cycling between the ports The active port is determined by the selected measurement parameter You can update all the parameters by pressing RESTART or key Del Electrical delay has been added or subtracted or port extensions are active ext Waiting for an external trigger Ofs Frequency offset mode is on Of Frequency offset mode error the IF frequency is not within 10 MHz of expected frequency LO inaccuracy is the most likely cause Gat Gating is on tune domain Option 010 only For time domain measurement procedures refer to Chapter 2 Making Measurements H 2 Harmonic mode is on and the second harmonic is being measured harmonics Option 002 only See Analy
79. he disk or the disk drive is empty If you requested a specific file title that file was not found on the disk F LHD CHECK R IHPLIT LEVEL Error Number The first IF signal was not detected during pretune 5 Check the front panel R channeljumper If there is no visible problem with the jumper refer to the HP 8753E Network Analyzer Service Guide for troubleshooting 7 20 Error Messages HO LIMIT LIMES DISPLAYED Error Number You can turn limit lines on but they cannot be displayed 144 on polar or Smith chart display formats MARKER DELTA SFAH SET Error Number You must turn the delta marker mode on with at least 15 two markers displayed in order to use the MARKEER 3 amp PAH softkey function MEMORY AAI LHBLE FOR Error Number You cannot perform interpolated error correction due to 123 insufficient memory MEMORY AVAILABLE FOR SEQUENCE Error Number You cannot modify the sequence due to insufficient 126 memory SPACE FOR CAL CLEAR REGISTERS Error Number You cannot store a calibration set due to insufficient 70 memory You can free more memory by clearing a saved instrument state from an internal register which may also delete an associated calibration set if all the instrument states using the calibration kit have been deleted You can store the saved instrument state and calibration set to a disk before clearing them Afte
80. high Reduce the number of points so that the low pass criteria is met FUHCT I OH HOT AYA LHBLE Error Number The function you requested over HP IB is not available 202 on the current instrument FUHCT I OH HOT VAL Error Number The function you requested is incompatible with the 14 current instrument state FUNCTION VALID MOD SECUEHCE Error Number You cannot perform sequencing operations while a 181 sequence is being modified FuHCT I OH HOT VAL FOR MEMORY Error Number function you selected only works with disk files 201 FUHCTIOH OHLY VALID DURIMG Error Number You can only use the Gt SUB capability 164 when you are building a sequence Attempting to use this softkey at any other time returns an error message and no action is taken Error Messages 7 16 8283 SOURCE PARAMETERS CHRHGED Error Number Some of the stimulus parameters of the instrument 61 state have been changed because you have turned correction on A calibration set for the current measurement parameter was found and activated The instrument state was updated to match the stimulus parameters of the calibration state This message also appears when you have turned on harmonic mode or frequency offset and the present frequency range cannot be used with one of these modes HP E COPY I HPROGRESS ABORT Wel TH LOCAL Error Number
81. ibration Minimizing Source and Load Mismatches When characterizing linear devices you can use vector accuracy enhancement to mathematically remove all systematic errors including source and load mismatches from your measurement This is not possible when the device you are characterizing is a mixer operating over multiple frequency ranges Therefore source and load mismatches are not corrected for and will add to overall measurement uncertainty You should place attenuators at all of the test ports to reduce the measurement errors associated with the interaction between mixer port matches and system port matches lb avoid overdriving the receiver you should give extra care to selecting the attenuator located at the mixer s IF port For best results you should choose the attenuator value so that the power incident on the analyzer R channel input is less than 10 dBm and greater than 35 dBm Making Mixer Measurements 3 1 Reducing the Effect of Spurious Responses By choosing test frequencies frequency list mode you can reduce the effect of spurious responses on measurements by avoiding frequencies that produce IF signal path distortion Eliminating Unwanted Mixing and Leakage Signals By placing filters between the mixer s IF port and the receiver s input port you can eliminate unwanted mixing and leakage signals from entering the analyzer s receiver Filtering is required in both fixed and broadband measurements Theref
82. ipment as shown in Figure 5 6 3 Select the HP 87533 as the system controller CEOHTREDLEER 4 Set the power meter s address SET ADDR ES ADDRESS 5 Select the appropriate power meter by pressing FOWER MTF E I until the correct model number is displayed HP 436A or HP 438A 437 6 Set test port power to the approximate desired corrected power 7 Press CAE and enter the test port power level that you want at the input to your test device For example if you enter xl the display will read CAL POWER 14 8 If you want the analyzer to make more than one power measurement at each frequency data point press HUMBER OF RERDIHGS n x1 where n the number of desired iterations If you increase the number of readings the power meter correction time will substantially increase 5 10 Optimizing Measurement Results 9 CAL ONE SHEEP TARE CAL SWEEP Using Continuous Correction Mode N NETWORK ANALYZER CONNECT FOR INITIAL SWEEP CONNECT FOR SUBSEQUENT SWEEPS 296166 Figure 5 7 Continuous Correction Mode for Power Meter Calibration Connect a power splitter or directional coupler to the port supplying RF power to your test device as shown in Figure 5 7 Set test port power to approximate desired leveled power Press Cal and enter test port power level that you want the analyzer to maintai
83. itude modulates the RF output signal EXTERNAL TRIGGER connector This allows connection of an external negative going TTL compatible signal that will trigger a measurement sweep The trigger can be set to external through softkey functions TEST SEQUENCE This outputs a TTL signal that can be programmed in a test sequence to be high or low or pulse 10 pseconds high or low at the end of a sweep for robotic part handler interface LIMIT TEST This outputs a TTL signal of the limit test results as follows Pass TTL high Fail TTL low MEASURE RESTART This allows the connection of an optional foot switch Using the foot switch will duplicate the key sequence MEASURE RESTART 1 10 HP 87633 Front and Rear Panel 17 18 19 20 TEST SET INTERCONNECT This allows you to connect an HP 87533 Option 011 analyzer to an HP 85046 or 85047 S parameter test set using the interconnect cable supplied with the test set The S parameter test set is then fully controlled by the analyzer BIAS INPUTS AND BUSES These connectors bias devices connected to port 1 and port 2 The fuses 1 A 125 V protect the port 1 and port 2 bias lines Serial number plate The serial number of the instrument is located on this plate EXTERNAL MONITOR VGA VGA output connector provides analog red green and blue video signals which can drive a VGA monitor HP 8753E Front and Rear Panel 1 11 Making Measurements Tab
84. le 2 1 Connector Care Quick Reference Handling and Storage Keep connectors clean Touch mating plane surfaces Extend sleeve or connector nut Set connectors contact end down Use plastic end caps during storage Visual Inspection Do Inspect all connectors carefully Use a damaged connector ever Look for particles scratches and dents Connector Cleaning Try compressed air first Use any abrasives Use isopropyl alcohol Get liquid into plastic support beads Clean connector threads Gaging Connectors Do Do Not Clean and zero the gage before use Use an out of spec connector Use the correct gage type Use correct end of calibration block Gage all connectors before first use Making Connections _ Align connectors carefully Apply bending force to connection Make preliminary connection lightly Over tighten preliminary connection Turn only the connector nut Twist or screw any connection Use a torque wrench for final connect Tighten wrench past break point Making Measurements 2 1 Basic Measurement Sequence Example Basic Measurement Sequence There are Eve basic steps when you are making a measurement 1 Connect the device under test and any required test equipment 2 Choose the measurement parameters 3 Perform and apply the appropriate error correction 4 Measure the device under test 5 Output the measurement results Basic Measurement Example In the following example a magnitude and
85. locations of softkeys 6 1 loss of power meter calibration data 5 9 M man status notation 1 7 marker values area on display 1 8 markers delta A 2 9 Index 7 reference 2 9 relative mode 2 9 search for maximum amplitude 2 10 search for minimum amplitude 2 10 marker stats bandwidth on display 1 8 math with data traces 2 8 maximum amplitude search 2 10 measure gain compression 2 22 increased accuracy 5 1 using limit lines 2 13 using swept list mode 2 27 measured inputs of display 1 7 measurement conversion loss example 3 11 measurement accuracy compensating for directional coupler response 5 9 connector repeatability 5 1 error correction 5 3 frequency drift 5 2 increasing 5 1 interconnecting cables 5 1 performance verification 5 2 reference plane and port extensions 5 2 temperature drift 5 1 measurement averaging changing 5 17 measurement data points setting 2 3 measurement error correction 5 3 Index 8 measurement points how to reduce 5 15 measurement results saving 4 10 measurements conversion loss for mixers 3 6 high dynamic range conversion loss for mixers 3 12 mixer 3 1 mixer considerations 3 1 mixer conversion compression 3 16 mixer isolation 3 2 1 optimizing 5 1 power meter calibration for 3 5 swept mixers 3 6 using swept list mode 2 27 measurement sequence 2 2 measurement setup diagram shown on analyzer display 3 19 measurement
86. lternate sweep press MOREAETERHATE A AND 5 18 Optimizing Measurement Results Softkey Locations The following table lists the softkey functions alphabetically and the corresponding front panel access key Full page menu maps are available in the HP 8753E Network Analyzer User s Guide Softkey Locations 6 1 Table 6 1 Softkey Locations Front P anel Access K ey pae UEIESIT C2841 EIER o 1i l o Hi A CIS E 8 ADAPTER ADAPTER WAVEGUIDE ADAPTER DELAY o o EN 6 2 Softkey Locations Table 6 1 Softkey Locations continued Softkey Front Panel Access Key Cal Loca Loca Sav AMPLITUD Sam AUTO FEED oH OFF AUTO SCALE AUS CHAH OFF AGING FACTOR AGIHG OFF gg o ol c T amp la 19 g g S See a AR Me 13 ee 5 d O AVERAGIHG RESTART Bek EHHDPRBRSZ BEEF DONE OH off BEEP FAIL on OFF WARM on OFF BEHHE DISPLAY Softkey Locations 6 3 Table 6 1 Softkey Locations continued Softkey Front P anel Access K ey COR lt cx Cx v3 D 6866 2 2 Cal s iE SUITS EIT EIT HF EIT USER KIT LINE 20 Po SYSTEM Zh CALIBRATE MENU CALIBRATE
87. me disk drives were limited to accessing that number of tracks lb format the disk either choose another external disk drive or use the analyzer s internal disk drive MOD I FY FACTORY PRESET Error Number You have attempted to rename delete or otherwise 199 alter the factory preset state The factory preset state is permanently stored in CMOS memory and cannot be altered If your intent was to create a user preset state you must create a new instrument state save it and then rename it to UPRESET CHHHOT RERD MEITE HFS FILE Sv STEM Error Number The disk is being accessed by the analyzer and is found 203 to contain an HFS hierarchical file system or files nested within subdirectories The analyzer does not support HFS Replace the disk medium with a LIF or DOS formatted disk that does not contain files nested within subdirectories 7 6 Error Messages CRH T STORE LOAD SEGLIEHCE INSUFFICIENT MEMORY Error Number Your sequence transfer to or from a disk could not be 127 completed due to insufficient memory CAUT RUX CHRHHELS MEASURE S PARAMNETERS OLY Error Number This message is displayed if you attempt to select a 216 measurement type other than an S parameter for an auxiliary channel CORRECTION OFF AUS CHRHHEL 552 DISABLED Error Number This message is displayed when correction is forced off 215 due to a stimulus change that is not compatible with the curren
88. ments 5 4 error messages 7 1 alphabetically listed 7 1 example conversion loss and output power as a function of input power level 3 16 conversion loss measurement 3 1 1 mixer LO to RF isolation measurement 3 22 mixer RF feedthrough measurement 3 23 signal flow in a mixer 3 21 spectrum of RF LO and IF signals present in a conversion loss measurement 3 6 swept IF conversion loss measurement 3 15 swept power conversion compression measurement 3 20 external am connector location 1 10 monitor connector 1 1 1 trigger connector location 1 10 ext mon connector 1 11 ext status notation 1 6 F fan location 1 10 fast 2 port calibration 5 16 faster sweep speed 5 12 features Index 4 rear panel 1 9 features of front panel 1 1 filtering for mixers 3 2 first portion of conversion compression measurement connections 3 17 flat limit lines 2 13 format area of display 1 8 format arrays 4 10 frequency selection for mixers 3 2 frequency drift 5 2 frequency offset mode 3 6 operation 3 4 frequency span decrease 5 13 front panel access key for softkeys 6 1 front panel features 1 1 full two port error correction 5 7 G gain compression measurement 2 22 Gat status notation 1 6 GPIO interface 1 9 H 2 status notation 1 6 H 8 status notation 1 7 high dynamic range swept IF conversion loss measurement connections 3 14 high dynamic range swept RF IF conversion loss 3 12
89. monstrate the remote operation of the network analyzer The System Verification and Test Guide provides the system verification and performance tests and the Performance Test Record for your HP 8753E Option 011 network analyzer Contents 1 HP 87533 Front and Rear Panel Front Panel Analyzer Display Rear Panel Features and Connectors 2 Making Measurements Basic Measurement Sequence and Example Basic Measurement Sequence Basic Measurement Example Step 1 Connect the device under test and any required test equipment Step 2 Choose the measurement parameters Step 3 Perform and apply the appropriate error correetion Step 4 Measure the device under test Step 5 Output the measurement results Using the Display Functions Tb View Four Channels Simultaneously Description of the Auxiliary Channels Quick Four Parameter Display Ib Save a Data Trace to the Display Memory Ib View the Measurement Data and Memory Trace Ib Divide Measurement Data by the Memory Trace Tb Subtract the Memory Trace from the Measurement Data Trate iiA sew AE To Ratio Measurements in Channel 1and 2 Ib Title the Active Channel Display Using Tb Activate Display Markers Delt
90. n at the input to your test device Compensate for the power loss of the power splitter or directional coupler in the setup If you want the analyzer to make more than one power measurement at each frequency data point press HUMBER OF RERDIHGS n x1 where n the number of desired iterations If you increase the number of readings the power meter correction time will substantially increase Press Cal CAL EACH SHEEP TAKE CAL to activate the power meter correction Optimizing Measurement Results 5 11 Increasing Sweep Speed To Use Swept List Mode Selectable IF bandwidths can increase the throughput of the measurement by allowing the user to specify narrow bandwidths only where needed m lb set up a swept list measurement pres Menu SHEEP TYPE EDIT E 2 The frequency segments can be defined in any of the following terms start stop number of points power IFBW e Start stop step power IFBW center span number of points power IFBW center span step power IFBW When finished press LIST FEEG E SWEPT 1 vv 5 12 Optimizing Measurement Results Decrease the Frequency Span Modify the frequency span to eliminate as many band switches as possible while maintaining measurement integrity Refer to the following table to identify the analyzer s band switch points Table 5 1 Band Switch Points 3 MHz to 3 3 MHz 3 3 MHz to 16 MHz 16 MHz to 3
91. nge Format LIF or DOS format You must initialize the disk before reading or writing to it Error Messages 7 35 Index 1 10 MHz precision reference output 1 10 10 MHz reference adjust 1 10 4 4 parameter display 2 4 A accuracy frequency drift 5 2 interconnecting cables 5 1 measurement 5 1 temperature drift 5 1 activating a limit test 2 21 active channel of display 1 7 entry area of display 1 7 active channel keys 1 2 AC voltage selector switch 1 9 adjust 10 MHz 1 10 analyzer display 1 4 front panel features 1 1 analyzer display measurement setup diagram 3 19 annotations of display 1 5 arrays flexibility 4 10 attenuation at mixer ports 3 1 ALITOSFEED 4 6 RETO FEED use 4 2 auto sweep time mode how to set 5 13 auxiliary channels 1 2 2 4 2 5 auxiliary input connector location 1 10 averaging changes 5 17 averaging factor how to widen 5 14 Avg status notation 1 5 B backspace key 1 2 2 11 band switch points 5 13 bandwidth system how to widen 5 14 basic measurement sequence and example 2 2 bias inputs and fuses locations 1 10 broad band power meter calibration connections 3 13 C2 status notation 1 6 cables interconnecting 5 1 Index 1 calibration fast 2 port 5 16 for mixer measurements 3 5 power meter 5 9 calibration factors entry 5 9 centronics parallel interface 1 9 channel 1 and 2 ratio measurement 2 8 channel 3 2
92. ompatible Printer To Save Measurement Recalling an Instrument State 1 10 Woo BR uo Ree C co o 5 Optimizing Measurement Results Increasing Measurement Accuracy 5 Connector Repeatability 5 1 Interconnecting Cables 5 Temperature Drift 5 he oa Gone en 5 Frequency Drift 5 2 Performance Verification 5 2 Reference Plane and Port Extensions 5 2 Measurement Error Correction 2 5 3 Clarifying Type N Connector Sex 5 3 Response Error Correction for Reflection Measurements 5 3 Response Error Correction for Transmission Measurements 5 4 Response and Isolation Error Correction for Transmission Measurements 5 4 One Port Reflection Error Correction 5 6 Full Two Port Error Correction 5 7 Power Meter Measurement Calibration 5 9 Entering the Power Sensor Calibration Data 5 9 Compensating for Directional Coupler Response 5 9 Using Sample and Sweep Correction Mode 5 guo o oo he c Using Continuous Correction Mode Increasing Sweep Speed Ib Use Swept List Mode Contents 3 Tb Decrease the Frequency Span Ib Set the Auto Sweep
93. only 7 Press MARKER the marker at approximately mid span 8 Press SEBHLE ZDIM to change the scale to 1 dB per division 9 Press POWER 10 Increase the power until you observe approximately 1 dB of compression on channel 2 using the step keys or the front panel knob 11 4 locate the worst case point on the trace press Making Measurements 2 23 1 521 log MAG 10 dB REF dB 1 19 723 dB CH2 STRRT 1 000 000 MHz STOP 1 000 000 000 MHz Figure 2 12 Gain Compression using Linear Sweep and 2220 1 20H 1l2 IfEGlHFL E D F was selected recouple the channel stimulus by pressing Menu COUPLED CH UH 13 Ib place the marker exactly on a measurement point press MARKER MODE MREEERZ DISCRETE 14 To set the CW frequency before going into the power sweep mode press SPEC IRE FUNCT IONS MARKER 15 Press SWEEP TYPE MEHL PODER SHEER 16 Enter the start and stop power levels for the sweep Now channel 1 is displaying a gain compression curve Do not pay attention to channel 2 at this time 2 24 Making Measurements 17 lb maintain the calibration for CW frequency press Cal INTERPOL CORRECTION OH DUAL RUAD 6 e t was selected press MORE be OFF 20 Press Meas INPUT PORTS Now channel 2 displays absolute output power in dBm as a function of power input 21 Press Scale Ref SCALE DI to chang
94. ons 1 5 steps of making a measurement 2 2 stimulus function block 1 1 stop values possible 1 5 subtract memory trace from the measurement data trace 2 8 sweep how to set auto sweep time how to set chop sweep 5 16 sweep speed increase 5 12 increasing 5 11 5 12 sweep type how to set 5 15 swept IF conversion loss measurement example 3 15 swept list frequency sweep increasing sweep speed 5 12 measurements 2 27 swept list mode increasing sweep speed 2 Index 13 measurements 2 27 swept power conversion compression measurement example 3 20 swept mixer measurement 3 6 system bandwidth how to widen 5 14 T techniques optimizing measurements 5 1 temperature drift 5 1 testing with limit lines 2 13 test port power increasing 5 17 test sequence connector location 1 10 test set interconnect location 1 10 test set switch controlling the 5 16 test using limits 2 21 title Index 14 area of display 1 7 title the active channel display 2 8 to use fast 2 port calibration 5 16 trace math 2 8 trace noise reducing 5 18 tsH status notation 1 7 type N calibration standard sex 5 3 type of sweep how to set 5 15 U 1 status notation 1 7 up converter port connections 3 3 V voltage selector switch 1 9 W widen system bandwidth
95. ore when configuring broad band swept measurements you may need to trade some measurement bandwidth for the ability to more selectively filter signals entering the analyzer receiver How RF and IF Are Defined In standard mixer measurements the input of the mixer is always connected to the analyzer s RF source and the output of the mixer always produces the IF frequencies that are received by the analyzer s receiver However the ports labeled RF and IF on most mixers are not consistently connected to the analyzer s source and receiver ports respectively These mixer ports are switched depending on whether a down converter or an up converter measurement is being performed It is important to keep in mind that in the setup diagrams of the frequency offset mode the analyzer s source and receiver ports are labeled according to the mixer port that they are connected to In a down converter measurement where the CONVERTER softkey is selected the notation on the analyzer s setup diagram indicates that the analyzer s source frequency is labeled RF connecting to the mixer RF port and the analyzer s receiver frequency is labeled IF connecting to the mixer IF port Because the RF frequency can be greater or less than the set LO frequency in this type of measurement you can select either gt EB or RF lt 3 2 Making Mixer Measurements NETWORK ANALYZER pg622e Figure 3 1 Down Converter Por
96. ously Note A full two port calibration must be active before Noe enabling auxiliary channels 3 or 4 Refer to Chapter 5 Optimizing Measurement Results in the User s Guide for a description of a full two port error correction Press Display IDUAL UAL Put channel 1 in the upper graticule and channel 2 in the lower graticule Set BURL CHAH om OFF to Enable auxiliary channel 3 Set AUB CHAH om OFF to GH Enable auxiliary channel 4 Press and set E on HEF to OH Create a four graticule display Set SPLIT DI amp SEs INS2M 4Hto dH See Figure 2 2 for the resulting display This is the default channel orientation where channel 1 is the upper left graticule channel2 is the upper right graticule channel 3 is the lower left graticule and channel 4 18 the lower right graticule 2 4 Making Measurements Description of the Auxiliary Channels Channels 1 and 2 are the primary channels a Channel 3 is the auxiliary channel for channel 1 a Channel 4 is the auxiliary channel for channel 2 a The auxiliary channels can be independently configured from each other and the primary channels in all variables except stimulus an auxiliary channel always has the same stimulus values as its primary channel The default measurement parameter for each channel is Channel 1 S11 m Channel 2 S21 Channel 3 512 Channel 4 522 2 Sep 1998 14 15 57
97. ping segments SELECTED SEQUENCE 15 EMPTY Error Number The sequence you attempted to run does not contain 124 instrument commands SELF TEST FHILED Service Error Internal test has failed Several internal test Number 112 routines are executed at instrument preset The analyzer reports the first failure detected Refer to the HP 8753E Network Analyzer Service Guide for troubleshooting information on internal tests and the self diagnose feature SEGUEHCE ABORTED Error Number sequence running was stopped prematurely when 157 you pressed the key SEQUENCE MAY HAVE CAN T COHTIHLUE Error Number When you pause a sequence you cannot continue it if 153 you have modified it You must start the sequence again 7 30 Error Messages SLIDES ABORTED MEMORY RERLLOCRTIOH Error Number You cannot perform sliding load measurements due to 73 insufficient memory Increase the available memory by clearing one or more save recall registers and pressing Preset or by storing files to a disk SOURCE POWER DISABLED LIST MODE TEL Information Message When list power has been enabled and swept list mode is on you will not be able to change the power level using the POWER key lb change the power level edit the swept list table SOURCE POWER TURHED OFF RESET POWER Information Message You have exceeded the maximum power level at one of the inp
98. power and other stimulus functions 7 RESPONSE function block The keys in this block allow you to control the measurement and display functions of the active display channel 8 ACTIVE CHANNEL keys These keys activate one of the four measurement channels Once activated a channel can then be configured for making measurements The analyzer has four display channels activates channel 1 or 3 and activates channel 2 or 4 Refer to Using Display Functions in Chapter 2 for information on enabling channels 3 and 4 and making them active 9 ENTRY block This block includes the knob the step fr 00 keys and the number pad These allow you to enter numerical data and control the markers You can use the numeric keypad to select digits decimal points and a minus sign for numerical entries You must also select a units terminator to complete value inputs The backspace key has two independent functions Modifies entries and test sequences Turns off the softkey menu and if more than one marker is active the marker information is displayed in the softkey area Refer to Markers and the Backspace Key in Chapter 2 1 2 HP 87533 Front and Rear Panel 10 11 12 13 14 INSTRUMENT STATE function block These keys allow you to control channel independent system functions such as the following copying save recall and HP IB controller mode m limit testing external source mode a tun
99. r deleting the instrument states press to run the memory packer Error Messages 7 21 HOT RLLOMED DUF POWER METER Error Number When the analyzer is performing a power meter 198 calibration the HP IB bus is unavailable for other functions such as printing or plotting HOT SPACE D SK F R STORE Error Number store operation will overflow the available disk 44 space Insert a new disk or purge files to create free disk space VALID MEMORY TRACE Error Number If you are going to display or otherwise use a memory 54 trace you must first store a data trace to memory HO VALID STATE REGISTER Error Number You have requested the analyzer over HP IB or by 55 sequencing to load an instrument state from an empty internal register LETTERS AHD ALLOWED Error Number You can only use alpha numeric characters and 43 underscores in disk file titles or internal save register titles Other symbols are not allowed except for the underscore symbol 7 22 Error Messages PTIUHRL FUNCTION INSTALLED Error Number The function you requested requires a capability 1 provided by an option to the standard analyzer That option is not currently installed Refer to Chapter 1 for a description of the available options OVERLAP LIST TYPE CHANGED TO STEPPED Error Number The list type changed to stepped because one or more 21
100. r Number This message is displayed if you attempt to enable an 217 auxiliary channel by pressing AU EHAH OFF without a full 2 port calibration being active Perform or recall a full 2 port calibration and set CORRECT on OFF to BH in the menu Then you can enable an auxiliary channel by pressing AUS CHAN on GFF in the Display menu ABORT Hi COPY OUTPUT Information Message This message is displayed briefly if you have pressed to abort a copy operation If the message is not subsequently replaced by error message number 25 ABORTED the copy device may be hung Press once more to exit the abort process and verify the status of the copy device At this point the copy device will probably have an error condition which must be fixed for example out of paper or paper jam Error Messages 7 1 ADDITIONAL STANDARDS HEEDED Error Number Error correction for the selected calibration class 68 cannot be computed until you have measured all the necessary standards RDDRESSED TO TALK WITH SAY Error Number You have sent a read command to the analyzer such as 31 ENTER 716 without first requesting data with an appropriate output command such as OUTPDATA The analyzer has no data in the output queue to satisfy the request FLOW RESTRICTED CHECK FAH FILTER Error Number Something is restricting the air flow into the analyzer 20 Check for any debris and clean o
101. r match the address and model number of the actual power meter RAHGE CAUSED POWER LVL CHANGE LIST Error Number 213 The selected power range changed the power level of one or more segments in the swept list table Change the segment power or change the power range REQUESTED DATA HOT CURRENTLY AYAI LABLE Error Number The analyzer does not currently contain the data you 30 have requested For example this condition occurs when you request error term arrays and no calibration is active SAVE FAILED INSUFFICIENT MEMORY Error Number 151 You cannot store an instrument state in an internal register due to insufficient memory Increase the available memory by clearing one or more save recall registers and pressing Preset or by storing files to a disk SEGMENT n POWER OUTS DE RAHGE LIMIT Information Message The selected power range does not support the power level of one or more segments in the swept list table This message appears when swept list mode is not on and reports the first segment that is out of range Change the segment power or change the power range Error Messages 7 29 SEGMEHT START FREQ OVERLAPS PREVIOUS SEGMENT Information A segment entered in the swept list table caused one or Message more frequency segments to overlap This message appears when swept list mode is not on and reports the first segment that is overlapping another Change the frequency ranges of the overlap
102. r of failing If this occurs all of the instrument state registers stored in CMOS memory will be lost Save these states to a disk and refer to the HP 8753E Network Analyzer Service Guide for battery replacement instructions BLOCK IMPUT ERROR Error Number The analyzer did not receive a complete data 34 transmission This is usually caused by an interruption of the bus transaction Clear by pressing the key or aborting the I O process at the controller BLOCK INPUT LEHGTH ERROR Error Number The length of the header received by the analyzer did 35 not agree with the size of the internal array block Refer to the HP 8753E Programming and Command Reference Guide for instructions on using analyzer input commands CALIBRATION ABORTED Error Number You have changed the active channel during a 74 calibration so the calibration in progress was terminated Make sure the appropriate channel is active and restart the calibration Error Messages 7 5 CALIBRATION REQUIRED Error Number calibration set could not be found that matched the 63 current stimulus state or measurement parameter You will have to perform a new calibration FORMAT DOS DISKS THIS DRIVE Error Number You have attempted to initialize a floppy disk to DOS 185 format on an external disk drive that does not support writing to all 80 tracks of the double density and high density disks The older single sided disks had only 66 tracks and so
103. r replace the fan filter ALL REGISTERS HAVE USED Error Number You have used all of the available registers you can 200 store no more instrument states even though you may still have sufficient memory There are 31 registers available plus the present instrument state AMALOG BUS DISABLED IH KHZ IF BH Error Number When you press IF BH the analog 212 bus is disabled and not available for use in troubleshooting For a description of the analog bus refer to the HP 8753E Service Guide 7 2 Error Messages ANALOG IHPUT OVERLOAD Error Number The power level of the analog input is too high Reduce 60 the power level of the analog input source RHOTHER SYSTEM CONTROLLER HP BUS Error Number You must remove the active controller from the bus or 37 the controller must relinquish the bus before the analyzer can assume the system controller mode ARGUMEHT OUT OF RANGE Error Number The argument for a programming command is out of 206 the specified range Refer to the HP 8753E Programming and Command Reference G uide for a list of programming commands and argument ranges ASCII MISSING STATEMENT Error Number The citilile you just downloaded over the HP IB or via 193 disk was not properly organized The analyzer is unable to read the BEGIN statement ASCII MISSING CITIFILE Error Number citifile you just downloaded over the HP
104. reduction techniques in the stop bands were successful m In Figure 2 18 notice that the stop band noise in the third segment is slightly lower than in the first segment This is due to the narrower IF bandwidth of the third segment 300 Hz 2 32 Making Measurements S24 log MAG 11 dB REF 0 PRm CENTER 900 000 000 MHZ SPAN 500 000 000 MHZ Figure 2 17 Filter Measurement using Linear Sweep Power 0 dBm IF BW 3700 Hz Making Measurements 2 33 CH1 821 loa MAG dB REF dB PRm cot E CENTER 900 000 000 MHZ SPAN SEGMENT 1 SEGMENT 3 Power 10 dBm Power 10 dBm IF BW 1000 Hz Fo IF BW 300 Hz SEGMENT2 Power 10 dBm IF BW 3700 Hz Figure 2 18 Filter Measurement using Swept List Mode 2 34 Making Measurements 500 000 000 MHZ pg651e Making Mixer Measurements Measurement Considerations To ensure successful mixer measurements the following measurement challenges must be taken into consideration Mixer Considerations a Minimizing Source and Load Mismatches a Reducing the Effect of Spurious Responses a Eliminating Unwanted Mixing and Leakage Signals Analyzer Operation a How RF and IF Are Defined a Frequency Offset Mode Operation a Differences Between Internal and External R Channel Inputs a Power Meter Cal
105. rement 8 lb set the frequency offset mode LO frequency press NSTRUMENT MODE FREG OFFS LO MENU FREQUENCY CH 600 3 18 Making Mixer Measurements 9 To select the converter type press 0 OFFS this low side LO up converter measurement analyzer source frequency is offset lower than the receiver frequency The analyzer source frequency can be determined from the following equation receiver frequency 800 MHz LO frequency 600 MHz 200 MHz The measurements setup diagram is shown in Figure 3 15 NETWORK ANALYZER FREQ OFFS ON off Lo MENU DOWN CONVERTER t UP CONVERTER RF gt LO RF lt tO VIEW MEASURE RETURN 4636 Figure 3 15 Measurement Setup Diagram Shown Analyzer Display 11 lb view the mixer s output power as a function of its input power press MEASURE 12 Ib set up an active marker to search for the 1 dB compression point of the mixer press AUTO SCALE MER SEARCI SEARCH MAX Making Mixer Measurements 3 19 13 Press The measurement results show the mixer s 1 dB compression point By changing the target value you can easily locate other compression points for example 0 5 dB 3 dB See Figure 3 16 14 Read the compressed power on by turning marker A off Marker A MODE MODE OFF log MAG 1 dB REF 10 dB 1 9949 1
106. rement 64 parameter Either change the measurement parameters or perform a new calibration D2 Di IHVRLIDHITHSIHGLECHRHHEL Error Number You can only make a D2 D1 measurement if both 130 channels are on Error Messages 7 9 1 IHVRLID CH2 HUM PTS DIFFERENT Error Number You can only make a 02 01 measurement if both 152 channels have the same number of points DEACLOCK Error Number A fatal firmware error occurred before instrument 111 preset completed Call your local Hewlett Packard sales and service office DEHDODLLRT OH WOT VAL TE Error Number Demodulation was selected when the analyzer was not 17 in CW tune mode Select demodulation only after putting the analyzer into CW time mode DEVICE nat ons nio t connect s wrona addrs Error Number device at the selected address cannot be accessed 119 by the analyzer Verify that the device is switched on and check the HP IB connection between the analyzer and the device Ensure that the device address recognized by the analyzer matches the HP ID address set on the device itself CTRECTORY FULL Error Number There is no room left in the directory to add files 188 Either delete files or get a new disk 7 10 Error Messages DISK HARDWARE PROBLEM Error Number The disk drive is not responding correctly Refer to the 39 HP 8753E Network Analyzer Service Guide for troubleshooting information lf using an external disk drive
107. rk if the limits lines are off selecting L IT 1 is also optional The limit test results appear on the right side on the analyzer display The analyzer indicates whether the filter passes or fails the defined limit test The message IL will appear on the right side of the display if the limit test fails a The analyzer beeps if the limit test fails and FAIL OH has been selected a The analyzer alternates a red trace where the measurement trace is out of limits TTL signal on the rear panel BNC connector LIMIT TEST provides a pass fail 5 V O V indication of the limit test results Making Measurements 2 21 Measuring Gain Compression Gain compression occurs when the input power of an amplifier is increased to a level that reduces the gain of the amplifier and causes a nonlinear increase in output power The point at which the gain is reduced by 1 dB is called the 1 dB compression point The gain compression will vary with frequency so it is necessary to End the worst case point of gain compression in the frequency band Once that point is identified you can perform a power sweep of that CW frequency to measure the input power at which the 1 dB compression occurs and the absolute power out in dBm at compression The following steps provide detailed instruction on how to apply various features of the analyzer to accomplish these measurements Power dBm
108. setup from display 3 10 measurements optimized 5 1 measurement type setting 2 3 measure restart 1 10 memory trace 2 7 message area of display 1 7 messages error 7 1 information 7 1 minimum amplitude search 2 10 mixer isolation measurement connections 3 22 to RE isolation measurement example 3 22 RF feedthrough measurement connections 3 23 RF feedthrough measurement example 3 23 mixer measurements 3 1 mixers attenuation at ports 3 1 conversion compression 3 16 conversion loss using frequency offset 3 6 eliminating unwanted signals 3 2 filtering 3 2 frequency offset mode operation 3 4 frequency selection 3 2 high dynamic range conversion loss 3 12 how RF and are defined 3 2 isolation measurements 3 21 minimizing source and load mismatches 3 1 power meter calibration 3 5 reducing the effect of spurious responses 3 2 swept measurement 3 6 mode auto sweep time 5 13 frequency offset 3 6 monitor connector 1 1 1 noise trace reducing 5 18 noise floor reducing 5 17 notations of display 1 5 number of points how to reduce 5 15 number of sweeps test set switch 5 16 0 offset R Channel 3 4 Ofs status notation 1 6 Of status notation 1 6 one sweep power meter calibration for mixer measurements connections 3 9 optimizing measurement results 5 1 optimizing measurements 5 1 outputting measurement results 4 1 P
109. surement data trace 2 8 test with limit lines 2 13 titling the active channel display 2 8 using delta A markers 2 9 procedures mixer conversion compression 3 16 power meter calibration for mixer measurements 3 5 P status notation 1 7 Q quick four parameter display R range Index 11 dynamic how to increasing 5 17 ratio measurement in channel 1 and 2 2 8 raw data arrays 4 10 R channel and source calibration connections 3 7 R channel connector locations 1 3 R channel inputs difference between internal and external 3 4 R channel power offset 3 4 rear panel features and connectors 1 9 receiver calibration connections 3 13 receiver crosstalk reducing 5 18 receiver noise floor reducing 5 17 reduce averaging factor 5 14 number of measurement points 5 15 reduce receiver noise floor 5 17 reducing receiver crosstalk 5 18 reducing trace noise 5 18 reference 10 MHz adjust 1 10 10 MHz output 1 10 level of display 1 8 reference markers 2 9 reference plane extending 5 2 relative marker mode 2 9 repeatability Index 12 connector 5 1 reset plotting parameters to default values 4 9 printing parameters 4 2 response error correction for reflection measurements 5 3 error correction for transmission measurements 5 4 function block location 1 1 results of measurement saving 4 10 reviewing the limit line segments 2 2 RF how defined for mixers 3 2 RS 232
110. t Connections In an up converter measurement where the UP COHME ET ER softkey is selected the notation on the setup diagram indicates that the analyzer s source frequency is labeled IF connecting to the mixer IF port and the analyzer s receiver frequency is labeled RF connecting to the mixer RF port Because the RF frequency will always be greater than the set LO frequency in this type of measurement you must select only RF LEG NETWORK ANALYZER 96236 Figure 3 2 Up Converter Port Connections Making Mixer Measurements 3 3 Frequency Offset Mode Operation Frequency offset measurements do not begin until all of the frequency offset mode parameters are set These include the following Start and Stop IF Frequencies LO frequency m Up Converter Down Converter a RF gt LO RF LO The LO frequency for frequency offset mode must be set to the same value as the external LO source The offset frequency between the analyzer source and receiver will be set to this value When frequency offset mode operation begins the receiver locks onto the entered IF signal frequencies and then offsets the source frequency required to produce the IF Therefore since it is the analyzer receiver that controls the source it is only necessary to set the start and stop frequencies from the receiver Differences Between Internal and External R Channel Inputs Due to internal losses in the analyzer s test set the power me
111. t calibration Note Loss of Power Calibration Data If your instrument state has not been saved after a power meter calibration the power correction data will be lost if any of the following circumstances exists a if you switch off the analyzer ac power and you haven t saved the correction in an internal register if you press and you haven t saved the correction in an internal register m if you change the sweep type linear log list CW power when the power meter correction is activated m if you change the frequency when the sweep type is in log or list mode Entering the Power Sensor Calibration Data Entering the power sensor calibration data compensates for the frequency response of the power sensor thus ensuring the accuracy of power meter calibration 1 Make sure that your analyzer and power meter are conflgured 2 Press Ca PHRMTR CALLOSS SENSR EISTSCHL FACTOR SENSOR A Compensating for Directional Coupler Response If you use a directional coupler to sample power in your measurement configuration you should enter the coupled arm power loss value into the power loss table using the following procedure 1 Press CAL LOSS SEHSR LISTS POWER LOSS Optimizing Measurement Results 5 9 Using Sample and Sweep Correction Mode NETWORK ANALYZER 9617 Figure 5 6 Sample and Sweep ode for Power M eter Calibration 1 Calibrate and zero the power meter 2 Connect the equ
112. t calibration while an auxiliary channel is enabled The auxiliary channels are restored when correction is turned on by pressing GAEKRErTIOHN om OFF CRUTIOH POWER OUT MAY BE LIHLEVELED Error Number There is either a hardware failure in the source or you 179 have attempted to set the power level too high The analyzer allows the output power to be set higher or lower than the specified available power range However these output powers may be unleveled or unavailable Check to see if the power level you set is within specifications If it is refer to the HP 8753E Network Analyzer Service Guide for troubleshooting CH1 22 TARGET VALUE Error Number Your target value for the marker search function does 159 not exist on the current data trace Error Messages 7 7 COHTIHUOUS SHITCHIHG ALLOWED Error Number Your current measurement requires different power 10 ranges on channel 1 and channel 2 lb protect the attenuator from undue mechanical wear test set hold will be activated The tsH test set hold indicator in the left margin of the display indicates that the inactive channel has been put in the sweep hold mode device not responding copy aborted Error Number The printer or plotter is not accepting data Verify the 170 cable connections HP IB addresses and otherwise ensure that the copy device is ready COPY OUTPUT COMPLETED Information The analyzer has
113. t panel access key 6 1 L LCD 1 4 limit test connector location 1 10 limit testing 2 13 activating 2 2 1 creating flat limit lines 2 13 creating single point limits 2 18 creating sloping limit lines 2 16 deleting limit segments 2 20 editing limit segments 2 20 reviewing limit line segments 2 21 running a limit test 2 21 line switch location 1 1 LIHETYPEDATA 4 8 line types plotter 4 8 line types available 4 8 line voltage selector switch 1 9 list frequency sweep increasing sweep speed making measurements 2 27 location 10 MHz precision reference output 1 10 10 MHz reference adjust 1 10 active channel keys 1 2 analyzer display 1 1 auxiliary input connector 1 10 bias inputs and fuses 1 10 centronics parallel interface 1 9 disk drive 1 1 entry block 1 2 external trigger connector 1 10 fan 1 10 fuse 1 9 instrument state function block 1 3 limit test connector 1 10 line switch 1 1 line voltage selector switch 1 9 Pl and P2 in SEALERLOTEGRATI mode 4 9 parallel centronics interface 1 9 pass fail message 1 8 port 1 and port 2 1 3 preset key 1 3 probe power source connector 1 3 R channel connectors 1 3 response function block 1 1 RS 232 serial interface 1 9 serial number plate 1 11 serial RS 232 interface 1 9 softkey labels 1 8 softkeys 1 1 stimulus function block 1 1 test sequence connector 1 10 test set interconnect 1 10
114. the pass band press 6 Ib specify a lower power level for the pass band press MORE POWER 10 8 HT IF EM 3700 RETUEH 2 30 Making Measurements Set Up the Upper Stop Band Parameters 7 Tb set up the segment for the upper stop band press 8 Ib maximize the dynamic range in stop band increasing the incident power and narrowing the IF bandwidth press o LIST FREG Calibrate and Measure 1 Remove the DUT and connect a thru between the test ports 2 Perform a full two port calibration Refer to Chapter 5 Optimizing Measurement Results With the thru connected set the scale to autoscale to observe the benefits of using swept list mode The segments used to measure the stop bands have less noise thus maximizing dynamic range within the stop band frequencies m The segment used to measure the pass band has been set up for faster sweep speed with more measurement points Making Measurements 2 3 1 CH1 S24 109 MAG 03 dB REF 150 dB 000 000 000 MHZ SPAN 500 000 000 MHz Figure 2 16 Calibrated Swept List Thru Measurement 4 Reconnect the filter and adjust the scale to compare results with the first filter measurement that used a linear sweep a In Figure 2 18 notice that the noise level has decreased over 10 dB confirming that the noise
115. the source FILE HOT COMPAT IBLE WITH INSTRUMENT Information You cannot recall user graphics that had been saved Message an earlier model of analyzer with a monochrome display These files cannot be used with the HP 87533 Error Messages 7 13 FILE Error Number The requested file was not found on the current disk 192 medium FILE F UHD Error Number During a resave operation either the Ele was not found 197 or the type of Ele was not an instrument state Ele FIRST CHARACTER MUST BE A LETTER Error Number The first character of a disk Ele title or an internal save 42 register title must be an alpha character FORMAT VALID FOR MEASUREMENT Error Number Conversion measurements Z or Y reflection and 75 transmission are not valid with Smith chart and SWR formats FORMATTING CATA Information list information is being processed for a list data Message output to a copy device and stored in the copy spool buffer During this time the analyzer s resources are dedicated to this task which takes less than a few seconds FREG OFFSET OHLY VALID HETWORK ANALYZER MODE Error Number You can only make frequency offset measurements in 140 the network analyzer mode 7 14 Error Messages FREBS BE CHANGED TOO POINTS Error Number The number of points selected for setting the low pass 204 transform frequencies is too
116. uick Reference 2 1 4 1 Default Pen Numbers and Corresponding Colors 4 7 4 2 Default Pen Numbers for Plot Elements 4 1 4 3 Default Line Types for Plot Elements 4 8 5 1 Switch Points 0 5 13 6 1 Softkey 6 2 Contents 7 HP 87533 Front and Rear Panel Front Panel Features Caution Do not mistake the line switch for the disk eject button See the figure below If the line switch is mistakenly pushed the instrument will be turned off losing all settings and data that have not been saved 9 1 Figure 87533 Front Panel Figure 1 1 shows the location of the following front panel features and key function blocks These features are described in more detail later in this chapter 1 LINE switch This switch controls ac power to the analyzer 1 is on O is off HP 87533 Front and Rear Panel 1 1 2 Display This shows the measurement data traces measurement annotation and softkey labels The display is divided into specific information areas illustrated in Figure 1 2 3 Disk drive This 3 5 inch drive allows you to store and recall instrument states and measurement results for later analysis 4 Disk eject button 5 Softkeys These keys provide access to menus that are shown on the display 6 STIMULUS function block The keys in this block allow you to control the analyzer source s frequency
117. uts and power has been automatically reduced The annotation P4 indicates that power trip has been activated When this occurs reset the power and then press Menu PHE on OFF to switch on power STARTING COP SPOOLEF Information Message The analyzer is beginning to output data from the spool buffer to the copy device The analyzer resumes normal operation the data is being output to the copy device in the background Error Messages 7 31 MODE CHANGED TO CH TIME SHEEP Error Number If you select external source auto or manual instrument 187 mode and you do not also select CW mode the analyzer is automatically switched to CW SWEEP TIME INCREASED Error Number You have made instrument changes that cause the 11 analyzer sweep time to be automatically increased Some parameter changes that cause an increase in sweep time are narrower IF bandwidth an increase in the number of points and a change in sweep type SHEEP TIME TOG FAST Error Number fractional N and digital IF circuits have lost 12 synchronization Refer to the HP 8753E Network Analyzer Service Guide for troubleshooting information SHEEP TRIGGER SET TO HOLD Information The instrument is in a hold state and is no longer Message sweeping lb take a new sweep press Menu TRIGGER MENUSINGLEorfOHTIHUOUS 7 32 Error Messages SYNTAX ERROR Error Number You have improperly formatted an HP
118. zer Options Available later in this chapter 1 6 HP 87533 Front and Rear Panel Hid man PC PC P PRm Smo tsH Harmonic mode is on and the third harmonic is being measured harmonics Option 002 only See Analyzer Options Available later in this chapter Hold sweep Waiting for manual trigger Power meter calibration is on For power meter calibration procedures refer to Chapter 5 Optimizing Measurement Results The analyzer s source could not be set to the desired level following a power meter calibration For power meter calibration procedures refer to Chapter 5 Optimizing Measurement Results Source power is unleveled at start or stop of sweep Refer to the HP 8753E Network Analyzer Service Guide for troubleshooting Source power has been automatically set to minimum due to receiver overload Power range is in manual mode Trace smoothing is on Indicates that the test set hold mode is engaged That is a mode of operation is selected which would cause repeated switching of the step attenuator This hold mode may be overridden Fast sweep indicator This symbol is displayed in the status notation block when sweep tune is less than 1 O second When sweep time is greater than 1 0 second this symbol moves along the displayed trace Source parameters changed measured data in doubt until a complete fresh sweep has been taken Active Entry Area This displays

HP 8753ES Network Analyzer

Contents

Download Pdf Manuals

Related Search

Related Contents