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1. 6 43 Keys Shifted Functions PRESET Equivalent SCPI Commands RST sets the synthesizer to a known state or SYST PRES See Also RST SYSTem PRESet 6 44 RCL CR Invoking the RCL CR recall level correction table function pressing the key and then the EXT METER key allows you to recall a previously stored table of level correction data from one of four level correction register locations The allowable range for register locations is 1 through 4 When SHIFT EXT METER is pressed the tex FEM TABLE ASS will be shown on the synthesizer display where is the last level correction register number entered Once you press a valid numeric key 1 through 4 and terminate the entry by pressing Hz ENTER the table of level correction data will be recalled from the location indicated by the numeric key pressed If level correction data has not been previously stored to a level correction register an error message is generated and no change to the current data takes place if you attempt to recall a level correction table from that register NOTE The four level correction registers are separate fram the instrument state registers Level correction data is not cleared from memory when the synthesizer is set to the preset state and is unaffected if an instrument state is recalled from one of the instrument state registers 6 45 Keys Shifted Functions RCL CR Equivalent SCPI
2. 6 The di esizer para at is over one 7 The a t e when the in the display parameter entry or ion has bee of the ows synt e cu en their ass of t the rig is under th nob is ro F OUTPUT ts The con instrum 9 The k he digit QD ts with Opt ob is used under the c display i steps of o ut power level The a at appear below t d keys move t tor ale connector o PC 3 5 mm precisio eys set the carrier frequency and power level of tl e synthesizer splay shows the current values of neters as well as the status esizer functions The rrent carrier frequency nunciators ers are only ctio e para ociated ne fu e digits i le the display ated If no cursor inhibited co QO on Option 1E9 mates with a connector on E9 installed ecto on o increase or decrease ursor w in the 8 is active e cursor t when pressed The e cursor will be modified ctor mates with a 10 The data en and modify various synthesizer p The BACKSPACE key cancels all or art of an erroneous parameter entry before nated The terminator keys ost column of keys are used to for the entered parameter rminate the parameter ent i STEP SIZE toy increase or decrease a parameter 00s v 2 7 Fo a are u 11 T ALC path powe 12 Tl activa in
3. Select an offset frequency increment from 1 kHz to 35 MHz If the Option 1E8 is installed the lower limit will change to 1Hz to allow for 1 Hertz resolution 222 Data out of range LO FREQ INCR 2240 Select an LO frequency increment from 1 kHz to 359 5 MHz 222 Data out of range DIRECT HW CONTROL INC 2243 Select synthesizer direct hardware control increment values within range See the service manual for more details on this feature 222 Data out of range DIAG ABUS 2249 Correct the HP IB query DIAG ABUS so that its parameter is within their appropriate range See the service manual for more details on this HP IB only feature 222 Data out of range CORR FLAT 2276 8 33 Error Messages Messages 2277 2291 2292 2294 2300 2303 2444 2447 Correct the HP IB command CORRection FLATness DATA so that all of its frequency parameters are from 1 GHz to 20 GHz and all of its loss parameters are from 40 dB to 40 dB If other modules or options are installed that extend the frequency range of the synthesizer this frequency range will be extended also 2277 CORR FLAT cannot query empty table 2277 The selected level correction table data cannot be queried because it is invalid or it does not exist Check that MEMory TABLe SELect is set to a level correction table that has data 224 Illegal parameter value SERIAL NUM 2291 Correct the HP IB comm
4. CORR CSET SEL FDATtableno selects the level correct table as defined by the tableno parameter CORR STATe ON OFF turns user corrections on or off CORR CSET STAT ON OFF turns level corrections on or off See Also LVL CR PWR MTR ADDRS RCL CR SAVE CR SOURce 1 CORRection CSET SELect SOURce 1 CORRection CSET STATe SOURce 1 CORRection STATe To Use the Level Correct Routine 6 36 MSG The Msc key causes the instrument to display the most recent uncleared error number and a short description of the error to the front panel display When uncleared error messages are in the error queue the front panel MSG annunciator will be lit The MSG annunciator will remain lit until all error messages in the queue have been cleared When an error is read using the usc key it is cleared as long as the error condition no longer exists When the MSG key is pressed the most recent error in the error queue will be displayed Successive presses of the MSG key will display any other errors in the queue Pressing any function key will remove the error from the display When the synthesizer is set to the preset state the error queue is cleared Equivalent SCPI Command SYST ERR returns the oldest uncleared error number and message that is in the error queue See Also Error Messages SYSTem ERRor 6 37 MULTIPLIER Invoking the MULTIPLIER function pressing the SHIFT
5. 2 a a 9 7 Warranty a ee 9 8 Limitation of Warranty 2 2 a 9 8 Exclusive Remedies 2004 9 9 Assistance 2 2 ee 9 10 Index Contents 7 Figures 4 4 4 5 4 6 4 7 4 8 4 9 5 1 5 2 5 3 5 4 5 5 5 6 Line Fuse Removal and Replacement 200a a 1 10 Millimeter Wave Equipment Setup a a a a a a a 3 4 External Diode Detector Leveling Setup 2 2 3 8 External Power Meter Leveling Setup 3 11 Level Correct Routine Equipment Setup 38 15 Typical Maximum Available Output Power from 1 to 20 GHz at 25 C with Output Step Attenuator Option 121 Installed 4 4 Typical Output Level Accuracy and Flatness at 10 and _85 Typical single sideband phase noise at 1 GHz 10 GHz and 20 GHz 25 C CW mode Offsets less than 100 Hz require the high stability timebase Option 1E5 4 6 Typical 2nd Harmonic Levels Measured at Output Power of 6 dBm 4 7 Typical Residual FM Measured i in 1 50 Hz 15 kHz Bandwidth CW Mode with High Stability Timebase Option 1E5 4 8 Typical Maximum Available Output Power from 1 to 20 GHz at 25 C with Output Step Attenuator Option 1E1 Installed 4 10 Typical Maximum Available Output Power from 0 O1 to L GHz at 25 C 2 4 11 Typical Output Level Accuracy and Flatness at 10 and 85 dBm 4 12 Typical single sideband phase noise at 50 MEZ 1 GHz 10
6. 3 7 Generating Signals with the Synthesizer To Use External Diode Detector Leveling In addition you must supply the cables and adapters necessary to connect the equipment 1 Connect the equipment as shown in Figure 3 2 HP 83711A SYNTHESIZED SIGNAL GENERATOR OUTPUT INPUT RF OUTPUT POWER SPLITTER 4 DIODE SAMPLING DETECTOR POINT la DIRECTIONAL COUPLER CAN BE USED IN PLACE OF THE POWER SPLITTER Figure 3 2 External Diode Detector Leveling Setup 2 Press the EXT DIODE key to enable external leveling NOTE When the EXT DIODE key is pressed the synthesizer enters the external diode detector leveling mode Power is then held at a constant level at the sampling point regardless of gain changes in the signal path between the synthesizer RF OUTPUT connector and the output 3 Set the desired output signal frequency using the FREQ key and any modulation 4 If the RF output is currently turned off press the RF ON OFF key to turn it on If the RF output is off the word 7 appears in the power level portion of the right most display 3 8 Generating Signals with the Synthesizer To Use External Diode Detector Leveling 5 Adjust the synthesizer output power so that the desired power at the output is attained For example assume that you are using a power splitter and you want 5 dBm at the output of the splitter In this case you must set the power at
7. ENTER is pressed the left most display shows the following where 15 is the currently selected language SCPI or HP 8673 Once the remote language function is enabled you can use the f or Q keys to toggle between SCPI or HP 8673 language options When the synthesizer is set to the preset state the language chosen with this command is not changed The language will default to SCPI when the ERASE MEMORY function is executed Equivalent SCPI Command SYSTem LANGuage SCPI COMP 8673 selects either SCPlor HP 8673 compatible language See Also ERASE MEMORY 7 14 SELF TEST Invoking the self test function pressing PCL 5 Hz ENTER enables you to cause the synthesizer to run a functional verification self test on itself When SPCL 5 Hz ENTER gt ENTRY OFF is pressed the text will be shown on the synthesizer display Pressing Hz ENTER will then cause all self test segments to be run Pressing any key other than Hz will cause the self test not to run If any of the self test segments fail error messages will be placed in the error queue to explain the failures The error messages can then be read either via the front panel or using programming commands If a particular self test segment failure makes running subsequent self test segments impossible the self tests will abort Notes 1 Running the self test will result in the synthesizer being set to the preset
8. Query INTERRUPTED 410 Check the HP IB controller program to see if the controller is programmed to read the entire query response data before issuing a subsequent command 400 400 Query error 400 Some problem occurred while parsing an HP IB query Insure that your programming is correct and try the query again Look at 440 through 400 for types of problems to look for 350 350 Queue overflow The error queue overflowed at this point and this message replaced the 16th error message No action is required Note To clear the HP IB error queue use CLS 330 330 Self test failed 330 See the explanation for error number 4000 315 315 Configuration memory lost 315 See error 1803 314 314 Save recall memory lost 314 8 5 Error Messages Messages 311 310 300 278 277 276 275 274 273 272 See error 1803 311 Memory error 311 See error 1803 310 System error 310 Some problem occurred while parsing an HP IB command or query Insure that your programming is correct and try the command again 300 Device specific error 300 A remote command or query could not be executed because an error occurred in the synthesizer 278 Macro header not found 278 A GMC or RMC macro label could not be found in the list of defined
9. in Chapter 3 6 51 SHIFT The SHIFT key causes the alternate function of any key pressed directly after it to be executed When the SHIFT key is pressed the word SHIFT will be displayed in the display The next key that is pressed after the G SHIFT key will execute the function that is indicated by the text that is above the key As an example note that MULTIPLIER appears directly above the FREQ key MULTIPLIER is the alternate function of the FREQ key Pressing SHIFT FREQ will enable the frequency multiplier entry mode If the SHIFT key is pressed prior to pressing a key that has no alternate function will be canceled from the display and no action will be taken by the instrument If you press the SHIFT key accidentally pressing it again will cancel it without altering synthesizer operation Equivalent SCPI Command There is no equivalent SCPI command for the SHIFT key however sending the SYST KEY 0 command is effectively the same as pressing the SHIFT key See Also SYSTem KEY 6 52 SPCL The GPCL key initiates activation of special functions Once a special function has been activated it can be turned on or off or its parameter value can be changed When the SPCL key is pressed the left most display shows the last special function used Press ff and J keys to scroll through the list until the desired special function is reached or press the
10. 6 30 LOC AL 6 30 LOCAL key 2 13 ocal lockout 6 30 LSN annunciator 5 4 LVL CR 6 31 Index 5 LVL CR annunciator 5 4 LVL CR ON OFF 6 35 mating connectors RF OUPUT v mechanical damage 1 3 mechanical options 4 21 millimeter signals generating 3 4 MSG v 6 37 MSG annunciator 1 11 3 23 5 4 MTR ALC annunciator 5 3 MULT annunciator 5 3 multiplier 6 38 multiplier value 6 38 multiplier values for HP source modules 3 4 number of points 6 31 numeric keypad 6 40 entering data with 2 3 ion 1CM rack mount kit 4 21 ion 1CP rack mount and handle kit 4 21 ion 1CR rack slide kit 4 2 ion 1E1 add output step attenuator 4 20 ion 1E5 add high stability timebase 4 20 ion 1E8 1 Hz frequency resolution 4 20 ion 1E9 3 5 mm RF output connector 4 20 ion OBO delete operating documentation 4 22 ion OB1 extra operating documentation 4 22 ion OBV component level information packet 4 23 ion OBW service documentation 4 23 ion OBX component level information packet service documentation 4 23 ions 4 17 documentation 4 22 electrical 4 20 mechanical 4 21 warranty 4 21 option W30 two years return to HP service 4 22 option W32 three year return to HP calibration service 4 22 option W34 three year Mil std calibration service 4 22 ooooo ooo 0 0 09 OD 8 Index 6 arameter active 6 40 unitless 6 13 ermanent errors 8 2 joints number of 6 31 ower cabl
11. ENTRY OFF function 2 13 6 15 ERASE MEMORY 7 8 erase memory function 7 8 error message action required 8 3 detailed description 8 3 hardware failures 8 4 manual error number 8 3 SCPI error message 8 3 SCPI error number 8 3 error message format 8 3 error messages user oriented v error messages list 8 5 40 error queue reading 2 10 errors permanent 8 2 EXT DIODE 6 16 EXT METER 6 20 extra operating documentation option OB1 4 22 EXT REF annunciator 5 3 actory calibration data 7 8 ailures self test 1 11 an checking 1 10 FREQ 6 25 use checking 1 9 Index 4 HP IB address setting 2 12 HP IB connector 5 8 10 HP IB extender instruments 5 9 HP IB interface capabilities 5 9 HP IB restrictions 5 8 EEE Standard 488 1978 5 10 increment value 2 6 6 57 installing the synthesizer 1 3 instrument state recall 6 47 instrument state save 6 49 INT ALC annunciator 5 3 interface capabilities HP IB 5 9 internal leveling advantages 6 28 disadvantages 6 28 in this book vi INT LEVEL 6 27 introduction book vi keypad numeric 6 40 knob v 5 13 modifying data with 2 4 knob resolution decreasing 2 4 increasing 2 4 egal and regulatory information 9 2 evel correct data using previously stored 3 20 evel correction register 6 45 6 50 evel correct routine 6 31 using 3 14 eveling using diode detector 3 7 using power meter 3 11 ine voltage selector 1 5 LLO
12. Hz ENTER key is pressed the words SES appear in the left most display where is the current level correct stop frequency Enter the desired level correct stop frequency If the stop frequency shown in the display is the desired stop frequency continue with step 10 For example use the following procedure to set the level correct stop frequency to 9 75 GHz a Type 9 75 on the synthesizer numeric keypad b Terminate the level correct stop frequency by pressing the GHz key 3 16 10 11 12 13 Generating Signals with the Synthesizer To Use the Level Correct Routine Note that the level correct stop frequency remains on the display after it is terminated so that it can be modified using the knob or f W keys if desired Press the Hz CENTER key to begin the number of points entry When the Hz ENTER key is pressed the words F appear in the left most display where is the current number of points A maximum of 401 points can be entered Enter the desired number of points If the number of points shown in the display is the desired number of points continue with step 12 Note that the start frequency and stop frequency are included in the number of points Use the following procedure to set the number of points to 100 for example a Type 100 on the synthesizer numeric keypad b Terminate the number of points entry by pressing the Hz ENTER key Note that the nu
13. If the shipping materials are damaged and the instrument is mechanically or electrically damaged o Contact the carrier as well as the nearest Hewlett Packard office o Keep the shipping materials for the carrier s inspection 1 8 Installing and Verifying the Synthesizer If You Encounter a Problem Power up Problems If the synthesizer has no power a Check that the power cord is fully seated in both the mains power receptacle and the synthesizer power module a Check that the synthesizer line fuse is not open WARNING For continued protection against fire hazard replace line fuse only with same type and ratings type nA nV The use of other fuses or materials is prohibited Refer to Figure 1 1 to remove the fuse from the power module You can use a continuity light or an ohmmeter to check the fuse An ohmmeter should read very close to zero ohms if the fuse is good The 6 3A 250 V fuse is HP part number 2110 0708 1 9 Installing and Verifying the Synthesizer If You Encounter a Problem FUSE IN USE SPARE FUSE INSERT SCREWDRIVER PRY OPEN Figure 1 1 Line Fuse Removal and Replacement o Contact the nearest Hewlett Packard office for service if necessary If the display lights but the ventilation fan does not start o Check that the fan is not stuck To check the fan follow these steps 1 Set the POWER switch LINE on an HP 83711A 12A to standby 2 Check that the fan bla
14. RF on off command not valid 603 An invalid request to turn off RF power was ignored by the instrument 604 Atten driver error while setting level 604 The attenuators could not be set to the range requested Change output power to a valid setting 605 Vernier driver error while setting level 605 The vernier value requested was not possible Change output power to a valid setting 606 Level is not in guaranteed range 606 The power level requested is beyond specifications and may be invalid This could be due to a very low vernier setting required when attenuator hold is active This is a permanent error 608 Attenuator not set before Ext Meter mode 608 The attenuator range must match that of the meter range desired for external meter ALC mode Turn off attenuator hold mode and make sure the power meter is in range hold before entering external power meter mode Error Messages Messages 610 650 652 653 655 656 657 610 Track and hold failed level is invalid 610 Power level was too high to do a power level setting in pulse or scan AM mode Try setting power to a lower value 611 Track and hold failed level is invalid 611 Power level was too high to do a power level setting in pulse or scan AM mode Try setting power to a lower value 650 PG switch not set to 0 650 ALC calibration data was not saved in EEPROM because the P
15. lt 3 kHz lt 50 dBc Sub Harmonics None 4 7 Specifications and Options HP 83711A 11B Specifications Residual FM At 1 GHz lt 15 Hz in 50 Hz 15 kHz bandwidth ol oOo o gt N Z o BS gt Q oO a ma o 12 Carrier Frequency GHz Figure 4 5 Typical Residual FM Measured in 50 Hz 15 kHz Bandwidth CW Mode with High Stability Timebase Option 1E5 AM Noise Floor at 0 dBm and offsets greater than 5 MHz from carrier lt 150 dBm Hz 4 8 HP 83712A 12B Specifications Specifications describe the instrument s warranted performance over the 0 to 55 temperature range unless otherwise noted Supplemental characteristics indicated by italics are intended to provide information useful in estimating instrument capability in your application by describing typical but not warranted performance Frequency Range 0 01 to 20 0 GHz Resolution 1 kHz 1 Hz with Option 1E8 Stability with high stability timebase Option 1E5 Aging Rate lt 1 5x10 day after 24 hour warm up Temperature Effects lt 1x 10 over 0 to 55 C nominally lt 1 4x 10 C Line Voltage Effects lt 5x 101 for 10 change in line voltage Stability without high stability timebase Aging Rate lt 1 0x 10 day after 72 hours at 25 C 10 C Temperature Effects lt 5x 10 over 0 to 55 C referenced to 25 C Stability with external 10 MHz reference Same as ext
16. macro labels Use LMC to get a list of all the currently defined macro labels 277 Macro redefinition not allowed 277 Indicates that a macro label in the DMC command could no be defined because the macro label was already defined 276 Macro recursion error 276 The nesting recursion of macros is deeper than 4 levels Don t use more than 4 levels when defining macros of macros 275 Macro definition too long 275 The macro definition must be 255 characters or less 274 Macro parameter error 274 A macro parameter placeholder was improperly used 273 Illegal macro label 273 Indicates that a macro label defined in the DMC command has a legal string syntax but it is too long It is the same as a common command header or contain invalid header syntax 272 Macro execution error 272 Indicates that a syntactically legal macro program data sequence could not be executed due to some error in the macro definition 8 6 271 270 261 260 241 240 226 225 224 223 222 Error Messages Messages 271 Macro syntax error 271 Indicates that a syntax error exists in the macro definition 270 Macro error 270 An error occurred while attempting to define query or use a macro Check that the macros are correct using LMC and GMC 261 Math error in expressi
17. output of most power meters provides this voltage The power sensor must have a frequency range that is appropriate for the range of frequencies being leveled The sensor must also have enough dynamic range to measure the level at the output of the directional coupler or power splitter As an example to level signals in the 7 dBm to 0 dBm range using a 10 dB coupler the power sensor must be capable of measuring power in the 17 to 10 dBm range 6 22 Keys Shifted Functions EXT METER Advantages of Power Meter Leveling When power meter leveling is used power level correction is continuous External power meter leveling has the advantages of better accuracy and temperature stability and improved vernier linearity over external diode detector leveling Using a sensitive power sensor allows ALC at levels as low as the power meter and sensor can measure Disadvantages of Power Meter Leveling One disadvantage of power meter leveling is a longer settling time than diode detector or internal leveling The settling time is dependent on the power range and sensor used The synthesizer assumes a settling time of two seconds to allow the sensor to reach the correct power level Depending on the power sensor and range being used the power meter might or might not have finished settling Power is typically settled within two seconds for the two highest ranges of the power meter External power meter leveling requires that e
18. 1 dBm 11 dBm 21 dBm etc Output SWR lt 2 0 1 nominal 84 5 85 0 Output Level dBm 10 5 Me Hit 9 5 4 8 12 Carrier Frequency GHz Figure 4 2 Typical Output Level Accuracy and Flatness at 10 and 85 dBm 4 5 Specifications and Options HP 83711A 11B Specifications Spectral Purity SSB Phase Noise dBe Hz Table 4 1 Offsets HP 83711A only Carrier Freq 100Hz 1kHz 10khz 100 kHz 2 GHz 66 74 91 107 10 GHz 69 75 73 101 18 GHz e3 m 3 8 Table 4 2 Offsets HP 83711B only Carrier Freq 100 Hz 1 kHz 10 kHz 100 kHz 1 GHz to lt 2 GHz 73 83 92 107 2 GHz to lt 5 GHz 70 78 83 100 5 GHz to lt 10 GHz 69 78 82 100 10 GHz to 20 GHz 65 73 100 10 100 1k 10k 100k 1M 10M Offset Hz Figure 4 3 Typical single sideband phase noise at 1 GHz 10 GHz and 20 GHz 25 C CW mode Offsets less than 100 Hz require the high stability timebase Option 1E5 4 6 Specifications and Options HP 83711A 11B Specifications Harmonics lt 50 dBc at output levels lt 6 dBm 1 to 20 GHz He Carrier Frequency GHz Figure 4 4 Typical 2nd Harmonic Levels Measured at Output Power of 6 dBm Non Harmonic Spurious gt 3 kHz lt 60 dBc includes power supply and frequency synthesis spurious Non Harmonic Spurious
19. ALC f J ENTRY C sso Lee ae cual ae ae wo Le o Ce Ce oO 6 Ea ocr C2 Ca fed Ce De x ace z wel BOE A A a ALE N z CEEE emer RE QUTPUT HP 83711B Synthesized CW Generator pq6tab_c iv any Error messages are gene orm a keystroke seque synthesizer mode that is not allowed 2 The SHIFT key c of some of the keys W SHIFT key and the the synthesizer performs per valid in b 3 T save para loca used 4 7 the outp exter diode Addi whe exter error messages on t try to operate the ue above the key e RECALL most of the synthes neters in one of ra ine 1 The key allows you to display e front panel display ed when you ce that is no in a etc anges the en you press the press anot e functio AVE key is used to izer operating onvolatile register ions so that they at a later time ca e Automatic Leve nethod used to regu ut power level Eithe al power detector leveling ca Co neter leve be recalled and rol keys select ate the synthesizer r internal leveling g or external be selected ional exter al equipme either external power meter leve al diode detector leveling is used t is required ing or 5 These RF outpu of many ay s outp e Wi ither to digit tha appears nodifica 8 TI Type instrume emale A e R Nm
20. CR The LVL CR level correct function allows you to calibrate external path losses in the signal path The level correct function creates a table in synthesizer memory of external path loss values versus frequency Invoking the LVL CR level correct function pressing the SHIFT key and then the INT LEVEL key causes the synthesizer to prompt you for the start frequency stop frequency and number of points in the level correction table Once the start frequency stop frequency and number of points are entered you are given the option of running the level correct routine When SHIFT INT LEVEL LVL CR is pressed the synthesizer initially prompts you for the level correct start frequency e When SHIFT NT LEVEL LVL CR is pressed the text will be displayed where is the current start frequency At this point a new start frequency can be entered or the existing start frequency can be modified using the knob or arrow keys The start frequency is used to determine the beginning frequency for the level correction table The start frequency is the first frequency point in the table NOTE You do not have to choose a new start frequency or stop frequency or number of points To keep the same parameter value press Hz ENTER without entering a new parameter and the next parameter in the sequence will be displayed 6 31 Keys Shifted Functions LVLCR Once you have chosen the proper start
21. Command There is no equivalent SCPI command for the RCL CR function however the SOUR1 CORR CSET SEL command is used to select which level correct table is used to correct power at the synthesizer RF OUTPUT connector See Also LVL CR LVL CR ON OFF SAVE CR To Use the Level Correct Routine in Chapter 3 6 46 RECALL The RECALL key allows you to recall a previously stored instrument state from one of ten register locations The allowable range for register locations is 0 through 9 When RECALL is pressed the text will be shown on the instrument display where 1 is the last register number entered Once you press a valid numeric key 0 through 9 and terminate the entry the instrument state will be recalled from the location indicated by the numeric key pressed If the instrument state has not been previously stored to an instrument state register the synthesizer will be set to the preset state if you attempt to recall the instrument state from that register Equivalent SCPI Command RCL register recalls a previously stored instrument state from the register defined by the register parameter See Also PRESET RCL SAV SAVE 6 47 RF ON OFF The RF_ON OFF key toggles the signal at the RF OUTPUT connector on and off When the RF OUTPUT is turned off the text F will be indicated in the level display in place of When the RF output is turne
22. For example if diode detector leveling is currently selected the DIODE annunciator will be lit otherwise it will not be visible The fluorescent display annunciators are INT ALC DIODE ALC MTR ALC MULT EXT REF SPCL LVL CR RMT LSN TLK and SRQ The three front panel LED annunciators UNLOCK UNLVL and MSG will be lit to warn you that an associated condition exists For example if error messages are in the error queue the MSG annunciator will be lit An Front Rear Panel Display explanation of each annunciator can be found in the Annunciators entry in this section of the manual Display The carrier display is the fluorescent display that is on the right side of the front panel The primary purpose of this display is to indicate the current setting of the synthesizer output frequency and power level When parameter entry is initiated the information in this display will be temporarily replaced with a parameter entry display Pressing Hz ENTER returns the frequency and power level information to the display As an example if the RECALL key is pressed the text appears in the display If a cursor v appears over one of the digits in the display this digit will be increased or decreased as the knob is rotated Note that the cursor indicates that particular parameter is active The cursor can be moved left or right by pressing the or keys NOTE When operating the synthesizer in a sec
23. GHz and 20 GHz 25 C CW mode Offsets less than 100 Hz require the high stability timebase Option 1E5 4 14 Typical 2nd Harmonic Levels Measured at Output Power of 6 dBm 4 15 Typical Residual FM Measured i in 1 50 Hz 15 kHz Bandwidth CW mode with High Stability Timebase Option 1B5 4 16 Synthesizer Display Annunciators oa 5 3 Synthesizer Connectors Front Panel aaa 5 6 Synthesizer Connectors Rear Panel 00a aa aaa 5 6 HP IB Connector and Cable 0 a a a a a 5 8 Synthesizer Display wee ee BLT Power Cable and Line Mains Plug Part Numbers tee ee BY Contents 8 6 1 External Diode Detector Leveling Setup 6 2 External Power Meter Leveling Setup Contents 6 21 Contents 9 Tables 4 1 Offsets HP 83711A only o a 4 6 4 2 Offsets HP 83711B only 2 2 a 4 6 4 3 Offsets HP 83712A only 2 aaa 4 13 4 4 Offsets HP 83712B only a a ee 4 13 5 1 HP IB Interface Cables Available 000a a a a a aaa 5 8 6 1 PRESET Conditions 0 a a a a a a a 6 43 7 1 Service Related Special Functions 0a a a a a aa 7 17 9 1 Hewlett Packard Sales and Service Offices 9 11 Contents 10 Installing and Verifying the Synthesizer Installing and Verifying the Synthesizer This chapter contains procedures for properly installing your HP 83871 1A 12A or HP 83711B 12B synthesizer and procedures for functional verification of the instrument 1
24. Kit Option 1CR Rack Slide Kit Lo Warranty Options Option W30 Two Additional Years Return to HP Service Option W32 Three Year Return to HP Calibration Service Documentation Options Option OBO Delete Operating Documentation Option OB1 Extra Operating Documentation Option OBV Component Level Information Packet CLIP Option OBW Service Documentation Option OBX Component Level Information Packet l CLIP Service Documentation 3 21 3 22 3 22 3 23 4 22 4 22 4 22 4 22 4 23 4 23 4 23 4 23 Contents 2 5 6 Front Rear Panel Annunciators See Also aa a Connectors Coaxial Connectors HP IB Connector Display See Also Knob Equivalent SCPI Command See Also POWER Switch See Also Power Cables Keys Shifted Functions gt See Also lt See Also tt See Also a See Also ADDRESS Equivalent SCPI Command See Also BACK SPACE Equivalent SCPI Command See Also ENTER Hz Equivalent SCPI Command See Also ENTRY OFF Equivalent SCPI Command See Also EXT DIODE Equivalent SCPI Command Equivalent SCPI Command Equivalent SCPI Commands Equivalent SCPI Commands I AARNA NNN OD 1 1 1 1 1 j j i T T i D AAAA WWNMMNMRRF PF TUM UO AONNW OH H W W APMDMWDAWADWNWWDiAWMDiWD in D 1 1 1 1 1 1 1 1 1 1 1 1 1 m m m u u e i i i y pp Contents 3 External Diode Detector Leveli
25. RECALL is pressed the text on the synthesizer display where is shown is the last register recalled Use the numeric keypad to enter the desired register number Press the Hz ENTER key to terminate the entry Notes 1 When an instrument state is saved to an instrument state register it will write over any instrument state previously stored to that register 2 If an instrument state has not been previously stored to an instrument state register the synthesizer will be set to the preset state if you attempt to recall the instrument state from that register 2 8 Performing Fundamental Synthesizer Operations To Save and Recall Synthesizer States Programming Example Use the following commands to store the instrument state to register 9 and then recall it from register 9 OUTPUT 719 SAV 9 Saves the current instrument state to register 9 OUTPUT 719 RCL 9 Recalls the previously stored instrument state from register 9 2 9 To Read the Contents of the Error Queue When one or more error messages are stored in the synthesizer error queue the front panel MSG LED annunciator will light Once all error messages have been read and all error conditions have been corrected the MSG annunciator will turn off l Press the MSG key When the MSG key is pressed the most recent uncleared manual error number and the front panel error message will appear on the display
26. RQ annunciator 5 4 andby 5 15 art frequency 6 31 TEP SIZE 6 57 TEP SIZE v TEP SIZE key 2 6 op frequency 6 31 supplemental characteristics 4 3 4 9 synthesizer installing 1 3 synthesizer at a glance iv v synthesizer states saving and recalling 2 8 a NNNUNN Index 8 T terminator keys v 2 3 hree year Mil std calibration service option W34 4 22 hree year return to HP calibration service option W32 4 22 TLK annunciator 5 4 o generate a CW signal 3 3 o generate millimeter signals 3 4 o use external diode detector leveling 3 7 o use external power meter leveling 3 11 o use previously stored level correct data 3 20 o use the level correct routine 3 14 urn on sequence 1 6 wo years return to HP service option W30 4 22 U witless parameters 6 13 units terminator keys 2 3 unleveled condition ALC 6 27 UNLOCK annunciator 5 4 UNLVL annunciator 5 4 V verification procedure 1 7 W warranty options 4 21 Index 9
27. The HP 83711A 12A and HP 83711B 12B are fully compatible with the Standard Commands for Programmable Instruments SCPI SCPI programming complies with IEEE 488 2 1987 In addition these synthesizers will emulate most applicable HP 8673 commands providing general compatibility with ATE systems which include HP 8678 Series signal generators Refer to the HP 8673 compatibility chapter in the Programming Guide for specific information Please consult your HP sales representative for details Environmental Operating Temperature Range 0 to 55 C for indoor use Altitude Up to 15 000 feet 4 572 meters Relative Humidity 80 for temperatures up to 31 C decreasing linearly to 50 relative humidity at 40 C EMC Complies with CISPR Publication 11 1990 Class A Group 1 and MIL STD 461C Part 2 Methods CE03 NB full limits BB 10 dB relaxation 150 kHz to 500 kHz full limits elsewhere CS01 CS02 RE02 Curve 2 10 dB RS03 1 V m 15 kHz to 1 GHz This product is designed for use in INSTALLATION CATEGORY II and POLLUTION DEGREE 2 per IEC 1010 and 664 respectively Acoustic Noise Emission Geraeuschemission LpA lt 70 dB A per ISO 3744 LpA lt 70 dB A nach DIN 45635 pt 1 LpA Operator position 44 6 dB based upon type test per ISO 6081 LpA am Arbeitsplatz 44 6 dB typpruefungsergebnis nach DIN 45635 pt 19 LpA Bystander position 38 4 dB based upon type test per ISO 6081 LpA fiktiver Arbeitsplatz 38 4 dB typpru
28. The synthesizer default HP IB address is preset to 19 You can however change the HP IB address of the synthesizer from the front panel l 2 Press the SHIFT key on the synthesizer front panel Press the ADDRESS LOCAL key The display indicates when the LOCAL key is pressed where is the current HP IB address Enter the desired HP IB address using the numeric keypad For example if you want to set the synthesizer HP IB address to 12 type 2 on the numeric keypad The display indicates Terminate the HP IB address entry by pressing the Hz ENTER key Note that when ENTER is pressed the cursor appears over the address parameter in the display The synthesizer HP IB address is now set to the new value 12 in the example but you can still change it with the numeric keypad knob or arrow keys at this point Pressing Hz ENTER again returns the display to normal operation Programming Example To set the synthesizer HP IB address to 12 send the following command OUTPUT 719 SYST COMM GPIB ADDR 12 Sets the synthesizer HP IB address to 12 If You Encounter a Problem If you have a problem operating the synthesizer check the following list of commonly encountered problems and troubleshooting procedures If the problem that you encounter is not in the following list contact the nearest Hewlett Packard office for assistance NOTE When transporting the product use original
29. depending on the destination of the original shipment Each instrument is equipped with a three wire power cable When connected to an appropriate AC power receptacle this cable grounds the instrument chassis The type of power cable shipped with each instrument depends on the country of destination See Figure 5 6 Power Cable and Line Mains Plug Part Numbers for the part numbers of these power cables Cables are available in different lengths and some with right angle plugs to the instrument Check with your nearest Hewlett Packard service center for descriptions and part numbers for these cables 5 16 Option 900 BS 1363A PLUG NEUTRAL LINE UNITED KINGDOM Option 983 NEMA 5 15P NEUTRAL U S CANADA CNOT INTERCHANGEABLE WITH OPT 918 Option 912 DHCR 187 PLUG NEUTRAL DENMARK Option 9 1 NZSS 198 AS 3112 PLUG NEUTRAL LINE AUSTRALIA NEW ZEALAND Option 985 IEC 328 014 NEUTRAL For interconnecting system components and peripherals IEC 83 STD B1 SABS 164 REPUBLIC OF SOUTH AFRICA and INDIA Front Rear Panel Option 942 CEE 7 STD SHT VII DIN 49441 VDE 620 CONTINENTAL EUROPE Option 986 SEV 1 11 1959 24587 TYPE 12 PLUG NEUTRAL SWITZERLAND Option 918 MITI 41 9692 PLUG NEUTRAL JAPAN CNOT INTERCHANGEABLE WITH OPT 923 Figure 5 6 Power Cable and Line Mains Plug Part Numbers 5 17 Front Rear Panel Keys Shifted Functions Key
30. display 5 11 LED 5 11 ANSI Standard MC 1 1 5 10 application attenuator hold function 7 4 erase memory function 7 8 arrow keys modifying data with 2 6 ATTEN HOLD ON OFF 7 3 attenuator hold function 7 3 automatic level control keys v w Index 2 B BACK SPACE v 6 12 E key v 6 9 lt key v 6 5 G key v 6 3 w key v 6 7 book introduction vi carrier keys v CLEAR DISPLAY 7 6 coaxial connectors 5 6 8 component level information packet option OBV 4 23 component level information packet service documentation option OBX 4 23 connector care 5 7 connectors 5 6 coaxial 5 6 8 damage levels 5 6 8 front panel 5 6 HP IB 5 8 10 impedances 5 6 8 rear panel 5 6 cursor V cursor double 2 8 6 3 6 5 CW signal generating 3 3 D damage electrical 1 8 mechanical 1 3 1 8 data entering with numeric keypad 2 3 modifying with arrow keys 2 6 modifying with knob 2 4 data entry keys v data entry problems 2 13 14 default state display 6 13 delete operating documentation option OBO 4 22 DIODE ALC annunciator 5 3 diode detector leveling advantages 6 18 applications 6 17 disadvantages 6 18 using 3 7 diode detector square law region 6 17 6 18 disadvantages attenuator hold function 7 5 display 5 11 Index 3 default state 6 13 documentation options 4 22 double cursor 6 3 6 5 earth ground for safety 1 6 9 5 electrical options 4 20 ENTER 6 13
31. from the synthesizer at a point other than the RF OUTPUT connector External power meter leveling requires the following external equipment Equipment Requirements Power Meter Must have a recorder output and range hold capability Power Sensor Must be capable of measuring power at the frequency and level present at the sampling point in the leveling loop Power Splitter Must be specified for use at the desired synthesizer output or frequency Directional Coupler In addition you must supply the cables and adapters necessary to connect the equipment 1 Connect the equipment as shown in Figure 3 3 SYNTHES ZED SIGNAL GENERATOR DIRECTIONAL RF COUPLER 9H OUTPUT T Se OUTPUT SAMPLING POINT COUPLED OUTPUT RECORDER OUTPUT 1 A POWER SPLITTER CAN BE USED IN PLACE OF THE DIRECTIONAL COUPLER pq67ab Figure 3 3 External Power Meter Leveling Setup 2 Press the key to enable internal leveling 3 Set the desired output signal frequency using the key 3 11 Generating Signals with the Synthesizer To Use External Power Meter Leveling 10 Set the desired output power level using the POWER LEVEL key If the RF output is currently turned off press the RF_ON OFF key to turn it on If the RF output is off the word of the display E appears in the power level portion Select auto range on the power meter Modify the synthesizer outpu
32. is correct and try the command again 0 No error The error queue contains no errors 110 EEPROM unprotected 110 The PG switch is set to 0 which leaves the EEPROM unprotected Open up the synthesizer and switch the PG switch to 1 This error message is only a warning 511 YTO cal data init error 511 The YIG oscillator factory calibration data checksum was incorrect A new YIG calibration should be performed or else the instrument may be unable to attain lock at some frequencies 600 601 602 603 604 605 606 608 Error Messages Messages 600 ALC loop went unleveled 600 Power is set to a level that is higher than the instrument can supply This is usually due to attenuator hold and the power is set to a value that requires the vernier to be operating out of its specified range Change the power level or turn off attenuator hold This is a permanent error 601 Hardware driver Power limit 601 Due to instrument specials such as attenuator hold the circuits cannot supply the specified power Change the power level or turn off attenuator hold This is a permanent error 602 Vernier has been set to the limit 602 Due to instrument options such as attenuator hold the circuits cannot supply the specified power The vernier has been limited to a valid value Change the power level or turn off attenuator hold This is a permanent error 603
33. is variable and is dependent on the devices in the external leveling loop Disadvantages of Diode Detector Leveling The diode detector must be capable of producing between 1 mV and 1 V of ALC voltage for the power level at the sampling point This typically restricts the lower limit at which external diode detector leveling will function Diode detector leveling might not provide an accurate power display on the synthesizer if the diode detector is operating outside of the square law region Diode detector leveling also does not provide temperature compensation Power level recalibration might be required in environments that are not temperature stabilized External diode detector leveling requires that external equipment be connected to the synthesizer NOTE Before selecting EXT DIODE you should adjust the synthesizer power level using internal leveling so that the step attenuator is set to the correct setting Keys Shifted Functions EXT DIODE Equivalent SCPI Command POW ALC SOUR DIOD enables external diode detector leveling See Also EXT METER INT LEVEL SOURcef 1 POWer ALC SOURce To Use External Diode Detector Leveling To Use the Level Correct Routine EXT METER The EXT METER key enables external power meter leveling External power meter leveling is a method of automatic level control ALC of the output signal using an external power meter and power sensor When the EXT
34. key and then the FREQ key allows you to enter a multiplier value so that the frequency display will indicate the frequency at the output of a frequency multiplier NOTE External equipment is required for frequency multiplication When SHIFT FREQ is pressed the multiplier value will be displayed across the display in the following format where 1 is the multiplier value The allowable range for multiplier values is 1 to 100 The preset value is 1 and the preset up down arrow increment value is 1 Entering a frequency multiplier value is useful when generating millimeter wave signals with external multiplier equipment The display shows the frequency at the output of the external frequency multiplier not at the synthesizer RF OUTPUT connector For example assume a frequency of 30 GHz is required The synthesizer cannot generate a 30 GHz signal directly but a frequency doubler can be connected at the RF OUTPUT connector to multiply a 15 GHz signal by two Setting the multiplier value to two allows you to display the frequency at the output of the multiplier on the synthesizer Setting the multiplier value to two will display 30 GHz while the synthesizer is actually generating 15 GHz Entering a new frequency of 32 GHz will set the synthesizer to 16 GHz 6 38 Keys Shifted Functions MULTIPLIER The minimum resolution at the output of the frequency multiplier is the synthesizer minimum resolution multiplied
35. no detailed description exists it will be omitted from the message 8 3 Error Messages Error Messages List e Action Required The text that appears below each error message listing contains corrective actions that should be followed in order to correct the error condition Notes 1 For more information related to error messages refer to To Read the Contents of the Error Queue in Chapter 2 or the MSG reference entry in Chapter 6 of this manual and the SYSTem ERRor reference entry in Chapter 1 of this manual 2 Error messages related to hardware failures are listed in the HP 837114 12A and HP 83711B 12B Synthesized CW Generators Service Guide HP part number 83711 90134 8 4 Messages The following pages list all error messages in ascending manual error number order 440 440 Query UNTERMINATED after indefinite response 440 Correct the HP IB controller program so that the query that returns indefinite length block data is the last item on the program line 430 430 Query DEADLOCKED 4380 Correct the HP IB controller program so that no more than eight queries are executed within the same line of the program 420 420 Query UNTERMINATED 420 Correct the HP IB controller program so that the controller terminates commands with the newline character NL before the controller attempts to read query response data 410 410
36. of the currently active function For example suppose that frequency is the current active parameter and you wish to change the increment value from its preset value of 100 MHz to 250 MHz The steps that follow illustrate how to accomplish this a Press the STEP SIZE key b Type 250 on the synthesizer numeric keypad 2 6 Performing Fundamental Synthesizer Operations To Modify Data with the Arrow Keys c Terminate the frequency increment value entry by pressing the MHz key When either the Cf or Q key is pressed the frequency will be either increased or decreased by 250 MHz instead of 100 MHz NOTE The knob and ff CE keys operate independently of each other The knob increases or decreases the digit in the display that is under the cursor 2 7 To Save and Recall Synthesizer States When you use the synthesizer for a specific application you can save and then recall the instrument state for future use You can save up to ten different instrument states l Press the SHIFT key and then the RECALL SAVE key When SHIFT RECALL SAVE is pressed the tex is shown on the synthesizer display where number entered is the last register Use the numeric keypad to enter the desired register number Valid register numbers are 0 through 9 Press the Hz ENTER key to terminate the entry To recall the instrument state from memory press the RECALL key When
37. remote command or query to be executed 220 Parameter error 220 The parameter included with the remote command or query is incorrect 2138 Init ignored 213 Indicates that an initiate was ignored because a trigger was already in progress 212 Arm ignored 212 An arming signal was received and recognized but was ignored 211 Trigger ignored 211 A GET TRG or triggering signal was received and recognized but was ignored Currently there is no bus trigger capability in the synthesizer 210 Trigger error 210 A trigger error occurred in the synthesizer 201 Invalid while in local 201 The remote command or query cannot be executed when the synthesizer is in local mode 200 Execution error 200 Some problem occurred while executing an HP IB command or query Insure that your programming is correct and try the command again 184 Macro parameter error 184 Indicates that a command inside the macro definition had the wrong number or type of parameters 183 Invalid inside macro definition 183 Indicates that the program message sequence sent with DMC or DDT command is syntactically invalid 8 8 181 180 178 171 170 168 161 160 158 151 Error Messages Messages 181 Invalid outside macro definition 181 Indicates that a
38. stability time base oven is cold The oven must be allowed to warm up before proper instrument operation will occur This is a permanent error 944 Reference synthesizer went out of lock 944 The reference synthesizer went out of lock The out of lock condition may have been due to an external time base being connected or disconnected Enter a different RF frequency and then set the frequency back to the desired value to re lock This is a permanent error 1101 Loop number is invalid 1101 If you are using the direct hardware control service feature you have entered an out of range value If this error occurs while not using the direct hardware control service feature low level hardware drivers could not set the requested synthesizer setting Try setting the synthesizer again If this error message persists run the instrument self test 1102 Start bit is negative 1102 See the explanation for error number 1101 1103 Length less than 0 or more than 32 1108 8 23 Error Messages Messages 1104 1105 1106 1107 1108 1109 1462 1463 1501 1511 See the explanation for error number 1101 1104 Start bit is invalid for given loop 1104 See the explanation for error number 1101 1105 Length is invalid for given loop 1105 See the explanation for error number 1101 1106 Data is too large for given length 1106 See the explanation for error
39. state 2 It s recommended that you clear the error queue before running the self test 3 For more information on reading the contents of the error queue refer to To Read the Contents of he Error Queue in Chapter 2 of this manual 4 Refer to the HP 837114 12A and HP 83711E 12B Synthesized CW Generators Service Guide for a isting of the test segments that are run during the self test 7 15 Special Functions SELF TEST Equivalent SCPI Command TST causes the synthesizer to run a functional verification self test on itself See Also Msc SYSTem ERRor To Read the Contents of the Error Queue in Chapter 2 TST 7 16 Service Related Special Functions The synthesizer firmware contains several service related routines that can be used when diagnosing faults in its circuitry Use of these special functions is detailed in the HP S3711A 12A and HP 83711B 12B Synthesized CW Generators Service Guide Option 0B3 HP part number 83711 90134 The service related special functions are listed in the following table They can be accessed by pressing SPCL f nwmber Hz ENTER where f number is a number from the first column of the table Details on how to use each special function can be found in the service manual Table 7 1 Service Related Special Functions Special Special Description Function Function Number Name 60 DIRECT CONTROL Allows direct mani
40. table recalled from one of the four level correction register locations The level correct function compensates for path loss measured during the level correct routine and changes power levels accordingly Thus power is flat and leveled over the range of frequency points where data was measured during the routine For example assume that the level correction factor at 10 GHz is 4 dB because there is 4 dB of path loss between the RF OUTPUT connector and the test point Then if 10 dBm is desired at 10 GHz and the level correct function is turned on the synthesizer actually generates 6 dBm so that the power level at the test point is 10 dBm Notice that path loss correction is independent of power level The preset condition for this function is off Notes 1 When level correction is activated and more power is required at the RF OUTPUT than the synthesizer can deliver an error message is generated and the UNLVL annunciator lights This can occur when the external signal path has loss and the power level is set close to maximum leveled power 2 If the level correct function is on and an output frequency is requested from the synthesizer that is either greater than the stop frequency or less than the start frequency an error message will be generated and the level correction factor for the requested frequency will be zero no correction 6 35 Keys Shifted Functions LVL CR ON OFF Equivalent SCPI Commands
41. table that has data 222 Data out of range MEM TABL LOSS 2597 Correct the HP IB command MEMory TABLe LOSS MAGnitude so that all of its parameters are from 40 dB to 40 dB 2598 MEM TABL LOSS cannot query empty table 2598 The selected level correction table data cannot be queried because it is invalid or it does not exist Check that MEMory TABLe SELect is set to a level correction table that has data 222 Data out of range ADD OPTION 2702 Select an option bit number within range See the service manual for more details on this feature 222 Data out of range DELETE OPTION 2705 8 36 4000 4001 4002 4003 4004 4005 4006 4007 4008 4009 4010 Error Messages Messages Select an option bit number within range See the service manual for more details on this feature 330 Self test failed 4000 Run the instrument self test a couple times checking the error queue each time the self test is run If the error message persists use the ERASE MEMORY feature press the preset key and cycle the power try the self test again If the error message persists an instrument failure may have occurred and servicing may be required If the synthesizer is functioning to your satisfaction you may wish to ignore the error message 330 Self test failed 4001 See the explanation for error number 4000 330 Self test failed 4002 See th
42. the additi pressi 13 TI 8371 we The G has been termi e right m e the as sed to in predeterm e Au co o the r leve ion o synt ga De units ot oO ed steps omatic Level Control ector is used as t f several special func ront panel key or sh synthesizer when its RF is being leveled externally e SPCL key is used esizer Special functions onal functions that are not ry keys are used to enter arameters S y voltage input e feedback output o initiate the ions available are activated by ifted key e PO WER switch LINE o an HP A 12A turns the synthesizer either on or off Synthesizer rear panel features are depicted and described in detail in Chapter 5 Front Rear Panel in this book In This Book This book is divided into the following chapters Chapter 1 Installing and Verifying the Synthesizer contains procedures for installing the synthesizer and verifying its operation Chapter 2 Performing Fundamental Synthesizer Operations familiarizes you with the fundamental operation of the synthesizer Chapter 3 Generating Signals with the Synthesizer explains how to generate CW signals and level signals Chapter 4 Specifications and Options contains a list of the synthesizer performance specifications as well as the various mechanical electrical w
43. the ff and E keys If SHIFT gt ENTRY OFF has been enabled the cursor will disappear from the display and rotating the knob will have no affect on the parameter Note that the cursor indicates that particular parameter is active For example if the cursor appears over any digit in the frequency display the frequency parameter is the active parameter If an arrow key is pressed that moves the cursor to a position that is off the display another cursor will appear next to the original cursor to indicate that the actual cursor position is off the display For example if a frequency multiplier of six is entered into the synthesizer the maximum frequency entry that can be made is 120 GHz 20 GHzx6 The display however only has room to display two digits to the left of the decimal point If you were to attempt to position the cursor three digits to the left of the decimal point the double cursor would appear indicating that the actual cursor position is off the display 6 5 Keys Shifted Functions lt Equivalent SCPI Command There is no equivalent SCPI command for the key however sending the SYST KEY 37 command is effectively the same as pressing the G key See Also S ENTRY OFF Knob SYSTem KEY 6 6 The key allows you to incrementally add to the current value of a parameter Pressing the f key will increase the currently active parameter by the increment value set
44. the attenuator switches Advantages Locking the step attenuator prevents switching between two levels when the leveled output power is set near an attenuator switching threshold 7 4 Special Functions ATTEN HOLD ON OFF Disadvantages When the step attenuator is locked the output power dynamic range is limited to the vernier range at the current output frequency Locking the step attenuator typically extends the lower limit of the vernier range by 5 dB The upper limit of the vernier range is the synthesizer maximum output power which changes with frequency The minimum dynamic range when the attenuator hold function is on is typically 19 dB NOTE The attenuator hold function on or off will not activate when the synthesizer is in the external diode detector leveling or external power meter leveling mode Equivalent SCPI Command POW ATT AUTO ON OFF turns the attenuator hold function on or off When the parameter is set to on the attenu ator hold function is off and when the param eter is set to off the attenuator hold function is On See Also POWER LEVEL SOURce 1 POWer ATTenuation AUTO 7 5 CLEAR DISPLAY Invoking the clear display function pressing SPCL G Hz ENTER enables you to turn off the synthesizer fluorescent display and LED annunciators or turn them on if they are currently turned off When SPCL G Hz ENTER is pressed the display
45. the output to 5 dBm Perform the following procedure to set the power at the output to 5 dBm a Temporarily connect the power meter and sensor at the output b Press the POWER LEVEL key c Rotate the knob until the power meter reads 5 dBm disregard the synthesizer power level reading d Disconnect the power meter and sensor from the output and connect the device under test DUT Notes 1 When the EXT DIODE key is pressed you might want to check the output powe 2 External diode detector leveling does not p recalibration might be required in environm Z 3 External diode detector leveling does not p and r ovide ents th ovide regions of the detector Therefore power eadjust if necessary emperature compensation thus output level at are not temperature stabilized proper compensation from square law to linear evel ch anges may require output level recalibration he synthesizer output power might change Therefore 3 9 Generating Signals with the Synthesizer To Use External Diode Detector Leveling Programming Command The following command is related to external diode detector leveling POW ALC SOUR DIOD J amp nables external diode detector leveling Related Tasks e To Use External Power Meter Leveling 3 10 To Use External Power Meter Leveling External power meter leveling is useful when you desire leveled RF output power
46. try again Make sure the power meter address matches the power meter address setting on the synthesizer Check the HP IB cable s for loose connections 744 Cannot find power meter on HP IB bus 744 An automatic level correction was attempted but failed to find a power meter on the HP IB bus Connect the desired power meter to the HP IB bus and try again Make sure the power meter address matches the power meter address setting on the signal generator Check the HP IB cable s for loose connections 745 Meter returns error msg 745 While running the automatic level correction the power meter returned 9 0000E 40 as the power reading This number indicates an error within the power meter 746 Data measured is invalid or out of range 746 While running the automatic level correction the power meter returned an out of range power reading or the power meter returned a non number as its power reading Check that the power meter is reading an appropriate value by looking at it 747 Unable to receive msg from meter 747 An automatic level correction was attempted but failed to power readings back from the power meter Make sure the power meter address matches the power meter address setting on the synthesizer Check the HP IB cable s for loose connections 748 Erasing corrupted level correct table 748 A level correction table was corrupt and was erased to fix it 749 Frequency not within le
47. used ensure that the synthesizer output is not being forced into an unleveled condition by the leveling circuitry If the circuit path before the sampling point has a lot of attenuation the synthesizer will have to source high power even though the required power at the sampling point seems low For example if the circuit before the sampling point has 23 dB of attenuation and the power required at the sampling point is 5 dBm the synthesizer will need to source 28 dBm which is more that its maximum specified power level 3 22 Generating Signals with the Synthesizer If the MSG LED annunciator is on If the synthesizer MSG annunciator is on there is a problem with the synthesizer To determine the error and turn off the MSG annunciator refer to To Read the Contents of the Error Queue in Chapter 2 and the listing of error messages in Chapter 8 RF Output Problems If there is no signal at the RF Output connector Check that the signal at the RF OUTPUT connector is turned on If the RF OUTPUT connector is turned off the text place of in the right most display If the signal at the RF OUTPUT connector is turned off press the RF_ON OFF key once to turn it on If the signal at the RF OUTPUT connector does not appear to be phase locked to the external reference will be displayed in o Check that the external reference is within synthesizer specifications Refer to the Specification table in Chapter 4 for
48. uses the following external equipment Equipment Requirements Microwave Amplifier Must be compatible with the HP 8355X Source Module used HP 8355X Source Module Must be capable of generating the desired frequency In addition you must supply any cables and adapters necessary to connect the equipment 1 Connect the equipment as shown in Figure 3 1 Turn off the AC power to the microwave amplifier prior to connecting or disconnecting the source module interface cable HP 83711A SYNTHESIZED MICROWAVE SIGNAL GENERATOR AMPLIFIER 5V GHz SOURCE MODULE SOURCE MODULE INTERFACE Figure 3 1 Millimeter Wave Equipment Setup 2 Enter the proper multiplier value for the HP 8355xX series source module that you are using into the synthesizer Perform the following procedure to select and enter the proper multiplier value a Press the key b Press the key 3 4 Generating Signals with the Synthesizer To Generate Millimeter Signals c Press the numeric key on the synthesizer numeric keypad that corresponds to the proper multiplier value from the following table Source Module Frequency Band Multiplier Model Number Value HP 83554A 26 5 40 GHz 2 HP 83555A 33 50 GHz HP 83556A 40 60 GHz HP 83557A 50 75 GHz HP 83558A 75 110 GHz o e ww d Terminate the multiplier value entry by pressing the ENTER key Set the frequency for the desired output signal The synt
49. with the STEP SIZE key A parameter can be made active by pressing its associated function key For example pressing the FREQ key will make frequency the active parameter pressing the POWER LEVEL key will make output power level the active parameter etc If no parameter is currently active or the SHIFT G ENTRY OFF function has been enabled pressing the ff key will have no effect If the Gf key is pressed and held down the key will auto repeat that is the active parameter will automatically increase rapidly in increment value steps Equivalent SCPI Commands There is no equivalent SCPI command for the ff key however the various SCPI commands that send numeric parameter data include an UP parameter option Sending the UP parameter in place of the numeric parameter is effectively the same as pressing the f key For example if you want to increase the output frequency by its current increment value send the following command OUTPUT 719 FREQ UP 6 7 Keys Shifted Functions t See Also ENTRY OFF STEP SIZE 6 8 The Q key allows you to incrementally subtract from the current value of a parameter Pressing the J key will decrease the currently active parameter by the increment value set with the STEP SIZE key A parameter can be made active by pressing its associated function key For example pressing the FREQ key will make frequency the active parameter
50. 11A 12A HP 83711B 12B AP 887381A 32A and HP 88781B 32B Synthesized CW Generators Calibration Guide 4 22 Option OB1 Extra Operating Documentation Option OBV Component Level nformation Packet CLIP ption OBW Service ocumentation Option OBX Component Level nformation Packet CLIP Service Documentation Specifications and Options If Option OB1 is ordered the shipment includes an extra copy of the AP 83711A 12A and HP 83711B 12B Synthesized CW Generators User s Guide the HP 83711A 12A and HP 83711B 12B Synthesized CW Generators Programming Guide HP 83711A 12A and HP 83711B 12B Synthesized CW Generators Quick Start Guide and the HP 88711A 12A HP 83711B 12B AP 8873 1A 32A and HP 83731B 32B Synthesized CW Generators Calibration Guide If Option OBV is ordered the shipment includes a copy of the AP 8371 1A 12A HP S88711B12B HP 83731A 32A and HP 83731B 32B Synthesized CW Generators Component Level Information Packet If Option OBW is ordered the shipment includes a copy of the AP S887 1LIA I2ZA and HP 838711B 12B Synthesized CW Generators Service Guide If Option OBX is ordered the shipment includes a copy of the AP 887 11A 12A HP 83711B 12B HP 83781A 32A and HP 83731B 32B Synthesized CW Generators Component Level Information Packet and a copy of the HP 838711A 12A and 838711B 12B Synthesized CW Generators Service Guide 4 23 Specifications and Options Front Rear Pa
51. 11B 12B HP 8373 1A 32A and HP 83731B 32B Synthesized CW Generators Calibration Guide for procedures that test all warranted specifications 1 Activate the SELF TEST special function To activate the SELF TEST special function perform the following procedure a Press the SPCL key b Press 5 on the synthesizer numeric keypad c Terminate the special function entry by pressing the Hz ENTER key The display will read 2 Press the ENTER key again to initiate the synthesizer self test routine When th lay will alternately read After the test completes the display momentarily reads 3 If the self test indicates an error condition refer to the section entitled If You Encounter a Problem at the end of this chapter If an error condition exists the display will momentarily read yy where and YY are numbers indicating the error condition 1 7 If You Encounter a Problem If you have a problem while installing or verifying the synthesizer check the following list of commonly encountered problems and troubleshooting procedures If the problem that you encounter is not in the following list contact the nearest Hewlett Packard office for assistance NOTE When transporting the product use original packaging or comparable only Mechanical or Electrical Damage If the instrument is mechanically or electrically damaged o Contact the nearest Hewlett Packard office
52. 12 Frequency loop went out of lock 712 8 15 Error Messages Messages 730 731 732 733 734 735 736 Enter a different RF frequency and then set the frequency back to the desired value to re lock This is a permanent error 730 Invalid data in level correct table 730 The active level correction table has no data in it Select a level correction table with valid data perform an automatic level correction to get valid data into the active table or use HP IB to load the active table This is a permanent error 226 Tables not same length Level correct 731 The active level correction table has a mismatch between the number of frequencies stored and the number of losses stored Select a level correction table with valid data perform an automatic level correction to get valid data into the active table or use HP IB to load tables with the same length This is a permanent error 732 Same frequencies with different losses 732 The active level correction table has duplicate frequencies with different losses Select a level correction table with valid data perform an automatic level correction to get valid data into the active table or use HP IB to load tables with non duplicate frequencies This is a permanent error 733 Frequency table not in ascending order 733 The MEM TABL FREQ command did not contain frequencies in ascending order The who
53. 2 Installing the Synthesizer This procedure explains how to inspect install and power up the synthesizer To Unpack the Synthesizer 1 Inspect the shipping container for damage Look for signs of damage such as a dented or torn shipping container or cushioning material that shows signs of unusual stress or compacting 2 Carefully remove the contents from the shipping container and inspect each item for damage If the instrument or any accessories appear to be damaged refer to Mechanical or Electrical Damage at the end of this chapter The following items should have been received in the shipment 1 3 Installing and Verifying the Synthesizer Installing the Synthesizer Item Model Part Number nstrument HP 83711A 12A or HP 83711B 12B Power Cable Depends on shipment destination Refer to Power Cables in Chapter 5 of this manual User s Guide 83711 90131 Quick Start Guide 83711 90133 Programming Guide 83711 90132 Calibration Guide 83731 90125 Calibration Ki 5063 1635 Calibration Guide 83731 90125 Calibration Software 5010 7723 Alo inchides one of the following Handle Kit 5062 3989 standard Rack Mount Kit 5062 3977 Option 1CM Rack Mount Kit with Handles 5062 3983 Option 1CP Rack Slide Ki 1494 0059 Option 1CR 3 Keep the shipping materials for future use If undamaged shipping materials are useful for shipment or storage of the instrument If
54. 222 Data out of range NODE MEASURE INC 2525 Select a meter node increment within range 222 Data out of range LEVEL CORR POINTS 2531 Select automatic level correction number of points from 2 to 401 222 Data out of range LEVEL CORR POINTS INC 2534 8 35 Error Messages Messages 2537 2540 2570 2588 2591 2592 2597 2598 2702 2705 Select automatic level correction number of points increment from 1 to 401 222 Data out of range LEVEL CORRECT SAVE 2537 Select an automatic level correction register from 1 to 4 222 Data out of range LEVEL CORR SELECT 2540 Select an automatic level correction register from 1 to 4 224 Illegal parameter value POWERMETER TYPE 2570 The selected power type is not supported by the synthesizer 224 Illegal parameter value MEM TABL SEL 2588 Select an automatic level correction register from 1 to 4 222 Data out of range MEM TABL FREQ 2591 Correct the HP IB command MEMory TABLe FREQuency so that all of its parameters are from 1 GHz to 20 GHz If other modules or options are installed that extend the frequency range of the synthesizer this frequency range will be extended also 2592 MEM TABL FREQ cannot query empty table 2592 The selected level correction table data cannot be queried because it is invalid or it does not exist Check that MEMory TABLe SELect is set to a level correction
55. 4 EN 50082 1 1992 3 V m 27 500 MHz IEC 801 4 1988 EN 50082 1 1992 0 5 kV Sig Lines 1 kV Power Lines IEC 555 2 1982 A1 1985 EN 60555 2 1987 IEC 555 3 1982 A1 1990 EN 60555 3 1987 A1 1991 Supplementary Information These products herewith compy with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC and carry the CE marking accordingly Santa Rosa California USA 17 June 1997 6 Join Hiatt Quality Engineering Manager European Contact Your locat Hewlett Packard Sales and Service Office or Hewlett Packard GmbH Department ZQ Standards Europe Herrenberger Strasse 130 D 71034 B blingen Germany FAX 49 7031 14 3143 49 7031 14 3143 9 12 Notice for Germany Noise Declaration LpA lt 70 dB am Arbeitsplatz operator position normaler Betrieb normal position nach DIN 45635 T 19 per ISO 7779 Legal and Regulatory Information 9 13 Legal and Regulatory Information Index Index 0 5 V GHz OUT connector 5 7 10 MHz IN connector 5 7 10 MHz OUT connector 5 7 1 Hz frequency resolution option 1E8 4 20 3 5 mm RF output connector option 1E9 4 20 488 1 compatibility codes 5 9 active parameter 6 40 add output step attenuator option 1E1 4 20 address 6 11 setting the HP IB 2 12 vantages attenuator hold function 7 4 ALC IN connector v 5 7 ALC unleveled condition 6 27 annunciators v 5 3 5 11 fluorescent
56. 5 Select an LO frequency from 300 MHz to 359 5 MHz 222 Data out of range OFFSET FREQ 2078 Select an offset frequency from 5 MHz to 40 MHz 8 31 Error Messages Messages 2081 2087 2090 2099 2102 2105 2111 2114 2165 2177 222 Data out of range DIAG FREQ C YCL 208 1 Correct the HP IB command DIAG FREQ CYCL so that its parameters are within range See the service manual for more details on this feature 222 Data out of range YIG OSC CAL FREQ 2087 Correct the HP IB command CAL YIG FREQ STARt so that its parameter is 2 GHz or 10 GHz 222 Data out of range CAL YIG 2090 Correct the HP IB command CAL YIG DATA so that all of its parameters are from 0 to 65535 222 Data out of range FREQ MULTIPLIER 2099 Select a frequency multiplier from 1 to 100 222 Data out of range EXT METER INCR 2102 Select an external power meter reading increment within the following ranges No attenuator options 0 01 dBm to 45 dBm Option 1E1 0 01 dBm to 130 dBm 222 Data out of range CAL ALC CURV FREQ 2105 Correct the HP IB command CAL ALC CURVe FREQuency STARt so that its parameter is from 10 MHz to 40 GHz See the service manual for more details on this feature 224 Illegal parameter value PSC 2111 This command requires a 1 or 0 as an argument 224 Illegal parameter value ATTEN LOCK 2114 The HP IB c
57. 6 886 2 25456723 People s Republic 800 810 0189 preferred 10800 650 0121 of China 10800 650 0021 India 1 600 11 2929 000 800 650 1101 User s Guide HP 83711A 12A and HP 83711B 12B Synthesized CW Generators HP part number 83711 90131 Printed in USA July 1997 Supersedes April 1995 Notice The information contained in this document is subject to change without notice Hewlett Packard makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and 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 Hewlett Packard Company 1995 1997 All Rights Reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws 1400 Fountaingrove Parkway Santa Rosa CA 95403 1799 USA The HP 83711A 12A and HP 83711B 12B Synthesized CW Generators The HP 83711A 12A and HP 83711B 12B synthesized CW generators are referred to as synthesizers throughout this manual The HP 83711A 11B has a carrier frequency range of 1 GHz to 20 GHz and the HP 83712A 12B has a carrier frequency range of 10 MHz to 20 GHz Specification information can be found in Chapter 4 Specifications and Options The HP S871 1A 12A and
58. ALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 9 8 Legal and Regulatory Information Warranty Exclusive Remedies THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES HP SHALL NOT BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY 9 9 Assistance Product maintenance agreements and other customer assistance agreements are available for Hewlett Packard products For any assistance contact your nearest Hewlett Packard Sales and Service Office shown in Table 9 1 9 10 Legal and Regulatory Information Assistance DECLARATION OF CONFORMITY according to ISO IEC Guide 22 and EN 45014 Manufacturer s Name Hewlett Packard Co Microwave Instruments Division 1212 Valley House Drive Rohnert Park CA 94928 USA Manufacturer s Address declares that the products Product Name Synthesized Generators Model Number HP 83711A HP 83711B HP 83712A HP 83712B HP 83731B HP 83732B Product Options This declaration covers all options of the above product conforms to the following Product specifications Safety IEC 1010 1 1990 Am 1 1992 EN 61010 1 1993 CAN CSA C22 2 No 1010 1 1992 EMC CISPR 11 1990 EN 55011 1991 Group 1 Class A IEC 801 2 1984 EN 50082 1 1992 4 kV CD 8 kV AD IEC 801 3 198
59. Bm Option 1E1 100 dBm to 30 dBm 224 Illegal parameter value ALC SOURCE 2012 The requested ALC source is not available in the synthesizer Use OPT to check which options are installed 222 Data out of range SPECIAL 2015 Select a special function number that is available in the synthesizer 222 Data out of range FREQ MULTIPLIER INCR 2018 222 Data out of range CW FREQ INCR 2024 Select a CW frequency increment from 1 kHz to 19 99 GHz If other modules or options are installed that extend the CW frequency range of the synthesizer this frequency range will be extended also If Option 1E8 is installed the limits will also change to allow for 1 Hertz resolution 222 Data out of range DIRECT HW CONTROL 2030 Select synthesizer direct hardware control values within range See the service manual for more details on this feature 222 Data out of range POWER LEVEL INCR 2033 Select a power level within the following ranges No attenuator options 0 01 dBm to 45 dBm Option 1E1 0 01 dBm to 130 dBm 222 Data out of range EXT METER LEVEL 2036 Select an external power meter reading within the following ranges No attenuator options 15 dBm to 30 dBm Option 1E1 100 dBm to 30 dBm 222 Data out of range DIAG IBUS DIR 2042 8 30 2045 2048 2051 2054 2057 2060 2066 2075 2078 Error Messages Messages Correct
60. E8 is installed frequency resolution is 1 Hz over the entire frequency range The preset up down arrow increment value is 100 MHz The increment value will be rounded to the nearest 1 kHz 6 25 Keys Shifted Functions FREQ Notes 1 When Option 1E8 is installed in either the HP 83711A 12A or HP 83711B 12B increment values with 1 Hz resolution are accepted over the entire frequency range 2 If the Multiplier function is being used the frequency displayed is the frequency at the output of the multiplier not the output of the synthesizer Equivalent SCPI Command FREQ freq sets the synthesizer output frequency as defined by the freq parameter See Also MULTIPLIER SOURce 1 FREQuency CW FIXed 6 26 INT LEVEL The INT LEVEL key enables internal leveling Internal leveling uses an internal ALC automatic level control detector to provide automatic level control of the output power at the RF OUTPUT connector When the key is pressed the INT ALC annunciator will be lit Internal leveling is used to control the internal RF signal over a specified range the vernier range of 1 to 13 dBm Additional dynamic range is provided by an optional 110 dB step attenuator Option 1E1 to give an effective dynamic range of 110 to 8 dBm 90 to 8 dBm on HP 8371 1A 12A An ALC unleveled condition occurs when the internal ALC circuitry cannot maintain leveling This can occ
61. G switch was protecting the EEPROM from writes Open up the synthesizer and switch the PG switch to 0 651 Invalid vernier cal data for 1 20 GHz 651 Valid vernier calibration data is not available for the 1 20 GHz band If you need to use this frequency range see the explanation for error number 4000 652 ALC term verification after EEPROM write 652 ALC vernier calibration data was not written into EEPROM correctly Try writing the data into the synthesizer again 653 Invalid vernier cal data for 0 01 1 GHz 653 Valid vernier calibration data is not available for the 0 01 1 GHz band If you need to use this frequency range see the explanation for error number 4000 655 PG switch not set to 0 655 Factory frequency correction data was not saved in EEPROM because the PG switch was protecting the EEPROM from writes Open up the synthesizer and switch the PG switch to 0 656 Factory flatness cal data verification 656 Factory frequency level calibration data was not written into EEPROM correctly Try writing the data into the synthesizer again 657 Factory flatness cal data is invalid 657 A valid factory frequency level calibration is not available for one or more of the frequency bands and or attenuator settings See the explanation for error number 4000 670 700 701 702 704 706 709 710 711 712 Error Messages Messages 670 Me
62. HP 83711B 12B Synthesized CW Generators User s Guide is written to accommodate the novice and the expert user If you are unfamiliar with the synthesizer Chapter 2 Performing Fundamental Synthesizer Operations is useful If you are familiar with the synthesizer Chapter 3 Generating Signals with the Synthesizer section is helpful If you are looking for specific detailed information about the synthesizer refer to the remaining chapters as needed Notes 1 This manual applies to instruments with firmware revision 10 0 or greater 2 If you have an HP 83711A 12A instrument with firmware revision number lt 10 0 refer to the HP 83711A 12A Synthesized Signal Generator User s Guide 5960 7088 3 To view firmware revision press SPCL 1 HZ ENTER ill The Synthesizer at a Glance The following figure and accompanying text explains some features of the HP 83711A and HP 83711B The HP 83712A andHP 83712B are nearly identical HEWKETT NB ID SyNTNgSIZED SIONAL PACK T200Hz RATDR 1 CARRIER c FREQUENCY POWER mo im am o mop m Log6274888GHz B685 08m U ALC F STATE J HP I5 INSTRUYENT STATE
63. HP 8673 Compatibility Guide for more information 301 8673 command L2 not emulated 1517 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command _9 not emulated 1518 8 25 Error Messages Messages 1519 1520 1521 1522 1523 1524 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command OC not emulated 1519 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command CT not emulated 1520 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command Nx not emulated 1521 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no acti
64. IST to the extent allowed by the Institute s calibration facility and to the calibration facilities of other International Standards Organization members 9 7 Warranty This Hewlett Packard instrument product is warranted against defects in material and workmanship for a period of one year from date of shipment During the warranty period Hewlett Packard Company will at its option either repair or replace products which prove to be defective For warranty service or repair this product must be returned to a service facility designated by HP Buyer shall prepay shipping charges to HP and HP shall pay shipping charges to return the product to Buyer However Buyer shall pay all shipping charges duties and taxes for products returned to HP from another country HP warrants that its software and firmware designated by HP for use with an instrument will execute its programming instructions when properly installed on that instrument HP does not warrant that the operation of the instrument or software or firmware will be uninterrupted or error free Limitation of Warranty The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance NO OTHER WARRANTY IS EXPRESSED OR IMPLIED HP SPECIFIC
65. Look up the manual error number in the table in Chapter 8 Chapter is organized in ascending manual error number order Perform the instructions following the error message in the list to correct or clear the error condition After you have completed the procedure in the list return to this procedure to continue If the MSG LED annunciator is still lit perform steps 1 through 3 again until the MSG annunciator turns off If the MSG annunciator is turned off continue with the next step Press the MSG key one more time Pressing the MSG key again returns the display to normal operation NOTE In the case of unleveled power or unlocked frequency the MSG LED annunciator may remain lit continuously until the problem is corrected Performing Fundamental Synthesizer Operations To Read the Contents of the Error Queue Programming Example To read the entire contents of the error queue run the following program 10 DIM B 160 20 OUTPUT 719 SYST ERR 30 ENTER 719 A B 40 PRINT A B 50 IF A lt gt 0 THEN 20 60 END Dimensions array B to accept 160 characters Queries the oldest uncleared error number and message in the HP IB error queue Enters the error number into variable A and the HP IB error message into variable B Prints the error number and HP IB error mes sage to the controller screen Returns to line 20 if there are more errors in the queue To Set the HP IB Address
66. METER key is pressed you are prompted to put the power meter in the range hold mode and then enter the power meter reading into the synthesizer After the range hold power meter value is entered the MTR annunciator will be lit If the procedure To Use External Power Meter Leveling in Chapter 3 has been followed correctly the RF output will be externally leveled via the power meter feedback loop NOTE The range hold power meter reading is the power level that is used by the synthesizer to calibrate the recorder output voltage of the power meter versus the synthesizer output power External Power Meter Leveling The purpose of a leveling circuit is to provide constant power independent of the load and minimize power variations versus frequency External power meter leveling is used in applications where it is desired to level the power at some point outside the synthesizer with an external power meter When frequency dependent losses are involved the RF output power at the end of the signal path will not have a constant amplitude over the synthesizer frequency range For example if a cable is used at the output of the synthesizer that has a constant 0 5 dB GHz loss 5 dB of attenuation at 6 20 Keys Shifted Functions EXT METER the output of the cable occurs after a 10 GHz frequency increase even though the power at the input to the cable is constant By externally leveling power at the output of the cable the syn
67. Notice Hewlett Packard to Agilent Technologies Transition This documentation supports a product that previously shipped under the H ewlett Packard company brand name The brand name has now been changed to Agilent Technologies The two products are functionally identical only our name has changed The document still includes references to Hewlett Packard products some of which have been transitioned to Agilent Technologies 0d Bee Agilent Technologies Printed in USA March 2000 Contacting Agilent By internet phone or fax get assistance with all your test and measurement needs Table 1 1 Contacting Agilent Online assistance www agilent com find assist United States Latin America Canada Europe tel 1 800 452 4844 tel 305 269 7500 tel 1 877 894 4414 tel 31 20 547 2323 fax 305 269 7599 fax 905 282 6495 fax 31 20 547 2390 New Zealand J apan Australia tel 0 800 738 378 tel 81 426 56 7832 tel 1 800 629 485 fax 64 4 495 8950 fax 81 426 56 7840 fax 61 3 9210 5947 Asia Call Center Numbers Country Phone Number Fax Number Singapore 1 800 375 8100 65 836 0252 Malaysia 1 800 828 848 1 800 801664 Philippines 632 8426802 632 8426809 1 800 16510170 PLDT 1 800 16510288 PLDT Subscriber Only Subscriber Only Thailand 088 226 008 outside Bangkok 66 1 661 3714 662 661 3999 within Bangkok Hong Kong 800 930 871 852 2506 9233 Taiwan 0800 047 86
68. RAM data if signal generator power is turned off Note Calibration data will never be lost 1803 RAM data lost at power on 1803 All RAM data was lost This includes all front panel settings save recall registers level corrections and other user settable values This error message can occur when the battery voltage is low or options change in the synthesizer Note Calibration data will never be lost 1804 Self test failure run the self test 1804 The power on self test detected an error or warning See the explanation for error number 4000 1805 Processor Board or IBUS test Failure 1805 The power on self test detected an error or warning for the microprocessor board circuits or power supply monitors See the explanation for error number 4000 1806 ROM checksum test failure 1806 The synthesizer ROM check sum does not match the data in ROM See the explanation for error number 4000 8 29 Error Messages Messages 2003 2006 2012 2015 2018 2024 2030 2033 2036 2042 222 Data out of range CW FREQ 2003 Select a CW frequency that is within range of the installed options If other modules or options are installed that extend the CW frequency range of the synthesizer this frequency range will be extended also 222 Data out of range POWER LEVEL 2006 Select a power level within the following ranges No attenuator options 15 dBm to 30 d
69. Rear Panel 5 6 Front Rear Panel Connectors Coaxial Connectors 0 5 V GHz OUT This rear panel BNC connector can be used as one of the 10 MHz IN 10 MHz OUT ALC IN RF OUTPUT inputs to a recorder It produces a DC voltage output that varies linearly with the frequency currently at the RF OUTPUT connector For example if the current frequency setting is 5 5 GHz the voltage at this connector would be 2 75 V The nominal source impedance is lt 250Q This rear panel BNC connector accepts a 10 MHz 0 to 10 dBm reference signal for operation referenced to an external time base The nominal input impedance of this input is 500 This connector detects when a valid reference signal is connected to it and automatically switches from internal to external reference operation This rear panel BNC connector provides a 3 dBm 3 dB 10 MHz signal derived from the internal frequency standard of the synthesizer The nominal source impedance is 500 This front panel BNC connector allows the synthesizer to be externally leveled It is used with external power meter leveling or external diode leveling The leveling signal at this input must be in the 1V range The nominal input impedance is 150 kQ The damage level is gt 12 V or lt 12 V The standard front panel RF OUTPUT connector is a Type N precision connector When Option 1E9 is installed this front panel connector is a 3 5 mm precision connector The nominal source impe
70. SPCL key and a number on the keyboard between 1 to 52 that corresponds to the desired special function When the desired special function is reached it can be changed by one of two methods depending on whether it is an ON OFF function or has an associated value If the function has only ON and OFF values it can be changed by pressing the SPCL ON and SPCL OFF keys or by pressing the ENTER key and using the fq and Q keys If the function has an associated parameter the parameter can be modified by first pressing ENTER and then adjusting the parameter by using either the ft and Q keys the RPG or by entering a value from the keyboard When entering from the keyboard the parameter entry is terminated the same way as any parameter entry When the synthesizer is set to the preset state the currently active special function is set to 1 SHOW INFO Equivalent SCPI Command There is no equivalent SCPI command for the SPCL key however sending the SYST KEY 9 command is effectively the same as pressing the SPCL key 6 53 SPCL OFF kHz The SPCL OFF key actually the secondary function of the kHz key is used to turn on off type special functions off The kHz SPCL OFF key is used to turn on off type special functions off when they are displayed in the display The on off type special functions are ATTEN HOLD ON OFF and CLEAR DISPLAY The SPCL OFF key will turn the special function off
71. SYSTem KEY 6 15 EXT DIODE The EXT DIODE key enables external diode leveling External diode leveling is a method of automatic level control ALC of the output signal using an external diode detector When the EXT DIODE key is pressed the DIODE annunciator will be lit If the procedure To Use External Diode Detector Leveling in Chapter 3 has been followed correctly the synthesizer RF output will be externally leveled via the diode detector feedback loop External Diode Detector Leveling The purpose of a leveling circuit is to provide constant power independent of the load and minimize power variations versus frequency External diode detector leveling is used in applications where it is desired to level the power at some point outside the synthesizer with an external diode detector When frequency dependent losses are involved the RF output power at the end of the signal path will not have a constant amplitude over the synthesizer frequency range For example if a cable is used at the output of the synthesizer that has a constant 0 5 dB GHz loss 5 dB of attenuation at the output of the cable occurs after a 10 GHz frequency increase even though the power at the input to the cable is constant By externally leveling power at the output of the cable the synthesizer would increase power at the input of the cable to produce a constant power level at the output of the cable External diode detector leveling re
72. This section provides procedures for generating signals with the HP 83711A 12A or 83711B 12B The steps in the procedures assume that you are familiar with the fundamental synthesizer operations Refer to Chapter 2 Performing Fundamental Synthesizer Operations if you are not familiar with these Procedures in this chapter include how to generate CW signals how to use external automatic level control and how to use the level correct routine The procedures in this chapter are in general listed in order of increasing complexity 3 2 To Generate a CW Signal You can generate a CW continuous wave signal with no modulation characteristics 1 Press PRESET to set the synthesizer to the default state 2 Set the desired frequency For example perform the following procedure to set the frequency to 2 000203 GHz a Press the FREQ key b Type 2 000203 on the synthesizer s numeric keypad c Terminate frequency entry by pressing the GHz key 3 Set the desired RF output power level For example perform the following procedure to set the output power level to 2 5 dBm a Press the POWER LEVEL key b Type 2 5 on the synthesizer s numeric keypad c Terminate the power level entry by pressing the GHz dBm key 3 3 CAUTION To Generate Millimeter Signals By using external equipment with the synthesizer you can generate millimeter wave signals Generating millimeter wave signals
73. W Generator requires 30 minutes to warm up Consult your HP sales representative for details on availability and retrofit information 4 20 Option 1E9 3 5 mm RF Output Connector Option 1CM Rack Mount Kit Option 1CP Rack Mount and Handle Kit Option 1CR Rack Slide Kit Specifications and Options Options If Option 1E9 is ordered the RF OUTPUT connector is a male APC 3 5 precision connector in place of the standard female Type N connector Mechanical Options There are three mechanical options available for the synthesizer If these options were not ordered with the original shipment a Handle Kit part number 5062 3989 is included If a mechanical option is desired later they can be ordered from the nearest Hewlett Packard office using the part numbers included in each of the following paragraphs These options are as follows The synthesizer can be mounted to an instrument rack using the rack mount kit The Rack Mount Kit part number is 5062 3977 The synthesizer can be mounted to an instrument rack using the rack flange kit In addition ease of handling is increased when the synthesizer is not rack mounted by using the front panel handles The Rack Mount and Handle Kit part number is 5062 39838 This kit is useful when the synthesizer is rack mounted Access to internal circuits and components or the rear panel is possible without removing the synthesizer from the rack The Rack Slide Kit part number
74. Y Ea SPCL OFF SYSTem KEY 6 56 STEP SIZE The GTEP SIZE key enables you to change the increment value for the current active parameter The increment value is the value that the current parameter will be increased or decreased by when the for Q keys are pressed The preset increment value for each parameter can be found under the pertinent key function entries in this section If the SHIFT ENTRY OFF function has been enabled you will not be able to change any increment values using the STEP SIZE key and pressing the M or Q keys will have no effect on the active parameter Equivalent SCPI Commands FREQ STEP increment sets frequency increment value as defined by the increment parameter FREQ MULT STEP increment sets multiplier increment value as defined by the increment parameter POW STEP increment sets power level increment value as defined by the increment parameter POW ALC PMET STEP increment sets external power meter leveling increment value as defined by the increment parameter 6 57 Keys Shifted Functions See Also G ENTRY OFF 6 58 Special Functions Special Functions This chapter contains detailed information on the various special functions available for the synthesizer Special functions are hidden during normal synthesizer operation and can only be invoked by pressing the SPCL key and then entering the special function
75. alent SCPI Command SYST COMM GPIB ADDR address sets the synthesizer HP IB address as defined by the address parameter See Also SYSTem COMMunicate GPIB ADDRess 6 11 BACK SPACE The BACK SPACE key allows you to cancel part or all of a parameter during entry The BACK SPACE key has an effect on the display only after a function key FREQ POWER LEVEL etc is pressed and before the entry is terminated If BACK SPACE is pressed repeatedly so that the whole parameter is canceled the display reverts back to what it was before the function key was pressed Equivalent SCPI Command There is no equivalent SCPI command for the BACK SPACE key however sending the SYST KEY 54 command is effectively the same as pressing the BACK SPACE key See Also SYSTem KEY ENTER Hz The ENTER key actually the secondary function of the Hz key is used to terminate unitless parameter entries It can also be used to return the display to its default state The Hz ENTER key is used to terminate unitless parameter entries The unitless parameters are multiplier values special function numbers instrument state register numbers level correction register numbers and the synthesizer and power meter HP IB addresses The ENTER key can also be used to return the display to its default state When the display is in the default state the display shows frequency and power level In the
76. ame as external reference Frequency Switching Time lt 50 ms to within 1 kHz For lt 1 GHz steps not across 10 GHz band switch point lt 35 ms HP 83711B only 4 3 Specifications and Options HP 83711A 11B Specifications RF Output Maximum Leveled Output Power 0 C to 35 C Frequency Standard with Option 1E1 1 20 GHz 11 dBm 10 dBm 20 ao h a z 14 D a 2 0 0 4 8 12 16 20 Carrier Frequency GHz Figure 4 1 Typical Maximum Available Output Power from 1 to 20 GHz at 25 C with Output Step Attenuator Option 1E1 Installed Minimum Leveled Output Power without Option 1E1 0 dBm Minimum Leveled Output Power with Option 1E1 110 dBm 90 dBm on HP 83711A Display Resolution 0 01 dB 4 4 Specifications and Options HP 83711A 11B Specifications Accuracy 1 0 dB over all power levels 0 dBm to specified maximum leveled output power t2 0 dB power gt 90 dBm 2 5 dB power lt 90 dBm The use of Type N RF connectors above 18 0 GHz degrades specification typically by 0 2 dB Flatness 0 5 dB power gt 90 dBm 0 7 dB power lt 90 dBm The use of Type N RF connectors above 18 0 GHz degrades specification typically by 0 2 dB Level Switching Time lt 17 ms without step attenuator range change Attenuator range changes occur at AP 88711B HP 88712B
77. and SYSTem SNUMber so that its string parameter is 10 characters or less 151 Invalid string data SERIAL NUM bad char 2292 A serial number can only contain characters from ASCII 32 space through ASCII 126 However ASCII 44 and ASCII 59 cannot be used 222 Data out of range POW METER ADDRESS 2294 Select a power meter address for automatic level correction from 0 to 30 Secondary addresses may be allowed in future firmware revisions 222 Data out of range CAL FLAT FREQ START 2300 Correct the HP IB command CAL FLATness FREQuency STARt so that its parameter is from 10 MHz to 40 GHz See the service manual for more details on this feature 222 Data out of range CAL FLAT ATT 2303 Correct the HP IB command CAL FLATness ATTenuation so that its parameter is from 0 dB to 120 dB with a resolution of 10 dB See the service manual for more details on this feature 222 Data out of range LEVEL CORR START FREQ 2444 Select an automatic level correction start frequency from 1GHz to 20GHz If other modules or options are installed that extend the CW frequency range of the synthesizer this frequency range will be extended also 222 Data out of range LEVEL CORR STOP FREQ 2447 8 34 2457 2462 2465 2471 2474 2522 2525 2531 2534 Error Messages Messages Select an automatic level correction start frequency from 1GHz to 20GHz If other mo
78. and no action is taken Refer to Chapter 4 of the HP S673 Compatibility Guide for more information 301 8673 command K1 not emulated 1512 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command Mn not emulated 1513 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command Xn not emulated 1514 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command Wn not emulated 1515 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command BS not emulated 1516 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the
79. arranty and documentation options that are available Chapter 5 Front Rear Panel contains entries that explain different aspects of the synthesizer front and rear panel For example you turn to this chapter for information on the RF connectors Chapter 6 Keys Shifted Functions contains entries on the function of each key on the synthesizer front panel as well as the shifted or alternate function of certain keys Chapter 7 Special Functions contains entries on the special functions available in the synthesizer Special functions are hidden during normal instrument operation and can only be invoked by typing a specific key sequence on the synthesizer front panel Chapter 8 Error Messages contains a table that lists all of the error messages that might be generated during use of the instrument Each table entry contains a sequence that can be followed to recover from the error condition Chapter 9 Legal and Regulatory Information contains information related to safety and SCPI conformance information The product warranty is also contained in this chapter vi Contents 1 Installing and Verifying the Synthesizer Installing the Synthesizer Loe To Unpack the Synthesizer To Install the Synthesizer Verifying Synthesizer Functionality If You Encounter a Problem Mechanical or Electrical Damage Power up Problems Self Test Failures 2 Performing Fundamental Synthesizer Operations To Ente
80. attenuator setting parameter 757 The attenuator range for looking up factory frequency level correction data is 0 through 120 resolution is 10 222 Data out of range Data set to minimum 758 Loss data for factory frequency level correction was less than minimum 222 Data out of range Data set to maximum 759 Loss data for factory frequency level correction was more than maximum 760 Bad index into data table 760 A data lookup from a calibration table found that the index data is out of range Try setting the same synthesizer function again If this error message persists run the instrument self test 761 Bad index into offset table 761 Error Messages Messages 763 764 765 766 770 771 772 A data lookup from the factory level correction offset table found that the index data is out of range Try setting the same synthesizer function again If this error message persists run the instrument self test 763 Unable to write to EEPROM 763 A calibration table was not loaded into EEPROM because the EEPROM was protected or the EEPROM load did not verify Open up the synthesizer and switch the PG switch to 0 764 Unable to write to RAM 764 A write to RAM failed to verify Run the self test routine to check RAM for problems 765 Attempt to write to ROM 765 There was an attempt to write calibration data to ROM This should not occur
81. ause the PG switch was protecting the EEPROM from writes Open up the synthesizer and switch the PG switch to 0 775 Low band yto cal failed 775 The low band calibration failed and the data for the calibration was not saved Re try the YIG calibration and watch for the default cal points indicated when the DAC value shown for a given point says dflt instead of DAC 776 High band yto cal failed 776 The low band calibration failed and the data for the calibration was not saved Re try the YIG calibration and watch for the default cal points indicated when the DAC value shown for a given point says dflt instead of DAC 777 Low band yto cal could not write EEPROM 777 The data for the low band YIG calibration could not be written to EEPROM Make sure the PG switch on the processor board was closed during the cal and re try the YIG calibration 778 High band yto cal could not write EEPROM 778 The data for the low band YIG calibration could not be written to EEPROM Make sure the PG switch on the processor board was closed during the cal and re try the calibration 779 Only 2GHz or 10GHz allowed for YTO Cal 779 The start frequency specified for the CAL YIG FREQ START command was not valid Re enter the start frequency and start the YIG calibration again 785 Cal Data not saved PG switch is not 0 785 The calibration data could not be saved beca
82. but if it does try setting the same synthesizer function again If this error message persists run the instrument self test 766 Number of writes to EEPROM exceeds max 766 The number of EEPROM writes has exceeded the maximum allowed However the data was written to the EEPROM anyway This is only a warning but you should check to make sure your data was correctly stored in EEPROM 770 YTO cal data invalid 770 The YIG oscillator factory calibration data checksum was incorrect Select the CAL YIG OSC feature to perform a YIG oscillator calibration If you do not re calibrate the synthesizer may be unable to attain lock at some frequencies 771 Invalid YIG DAC value in cal table 771 The YIG oscillator factory calibration data checksum was incorrect Select the CAL YIG OSC feature to perform a YIG oscillator calibration If you do not re calibrate the synthesizer may be unable to attain lock at some frequencies 772 YTO cal values for Up Down search vary 772 The YIG oscillator factory calibration data checksum was incorrect Select the CAL YIG OSC feature to perform a YIG oscillator calibration 8 20 774 775 776 777 778 779 785 786 Error Messages Messages If you do not re calibrate the synthesizer may be unable to attain lock at some frequencies 774 EEPROM protected YTO cal aborted 774 An automatic YIG oscillator calibration was not performed bec
83. by the frequency multiplier value As an example assume a multiplier value of two has been entered and you attempt to enter a frequency of 30 000 001 000 Hz from the numeric keypad The synthesizer will try to generate 15 000 000 500 Hz However the resolution of this signal assuming Option 1E8 is not installed is 500 Hz which is finer than the minimum specified resolution of 1 000 Hz The actual output frequency would be rounded to 15 000 001 000 Hz and the display would show 30 000 002 000 Hz Equivalent SCPI Command FREQ MULT multiplier sets the multiplier value as defined by the multiplier parameter See Also FREQ SOURce 1 FREQuency MULTiplier To Generate Millimeter Signals 6 39 Numeric Keypad The numeric keypad is used to enter a value for the current active function The number is entered recognized by the synthesizer when you press the appropriate units terminator key or the Hz ENTER key The numeric keypad consists of the numeric keys 0 through Q Q and the units terminator keys GHz MHz kHz and Hz When making an entry the parameter change will not take effect until a units terminator key is pressed The GHz key also functions as the units terminator key for dBm and dB The Hz key functions as the terminator key for entries that are unitless for example multiplier value entries When the numeric keypad is used data is entered for the active parameter A cur
84. d The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command DW not emulated 1538 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command SF not emulated 1539 8 28 1540 1541 1802 1803 1804 1805 1806 Error Messages Messages The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP S673 Compatibility Guide for more information 301 8673 command SP not emulated 1540 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP S673 Compatibility Guide for more information 301 8673 command IF not emulated 1541 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 1802 Low Battery Voltage 1802 The synthesizer battery voltage is low This could cause loss of
85. d The command is thus discarded and no action is taken Refer to Chapter 4 of the HP S673 Compatibility Guide for more information 301 8673 command SM not emulated 1527 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command _2 not emulated 1528 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command _3 not emulated 1529 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command _A not emulated 1530 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command SV not emulated 1531 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus 8 27 Error Message
86. d off the internal oscillators are turned off and the internal RF power shutdown circuit is turned on When the synthesizer is set to the preset state the signal at the RF OUTPUT connector is turned on Equivalent SCPI Command OUTP STAT ON OFF turns the signal at the RF Output connector on or off See Also OUTPut STATe 6 48 SAVE Invoking the SAVE function pressing the SHIFT key and then the RECALL key allows you to save the instrument state in one of ten register locations The allowable range for register locations is 0 through 9 When SHIFT RECALL is pressed the tex will be shown on the instrument display where 1 is the last register number entered Once you press a valid numeric key 0 through 9 and terminate the entry the instrument state will be saved to the location indicated by the numeric key pressed Saving the instrument state to a given register location will write over any instrument state previously stored at that location All user settings that are affected when the PRESET key is pressed will be saved Level correction tables however will not be saved For information on saving level correction tables refer to SAVE CR in this chapter Equivalent SCPI Command SAV register saves the instrument state to the register defined by the register parameter See Also RECALL SAV SAVE CR 6 49 SAVE CR Invoking the SAVE CR save leve
87. damaged shipping materials should be kept for the carrier s inspection 1 4 CAUTION Installing and Verifying the Synthesizer Installing the Synthesizer To Install the Synthesizer The following provides a general procedure for installation and initial power up of the HP 83711A 12A or HP 83711B 12B synthesizer 1 Check to make sure that the power cable is undamaged Do not use the power cable if the plug contacts are bent or broken or if the wire insulation is damaged or if wire is exposed Never use a power cable if the grounding contact has been removed Always use the three prong AC power cord supplied with this product Failure to ensure adequate earth grounding by not using this cord may cause product damage 2 Set the POWER switch LINE on an HP 83711A 12A on the synthesizer to standby 3 Set the line voltage selector switch to match the mains voltage The line voltage selector switch is located on the rear panel of the synthesizer to the right of the power module Use a small flat blade screwdriver to set the switch up for mains voltages in the range of 90 V to 132 V 50 60 or 400 Hz or down for mains voltages in the range of 198 V to 264 V 50 or 60 Hz 1 5 WARNING Installing and Verifying the Synthesizer Installing the Synthesizer This is a Safety Class I product provided with a protective earthing ground incorporated in the power cord The mains plug shall only be inserted i
88. dance is 509 When making connections to this connector carefully align the center conductor elements then rotate the knurled barrel while mating components remain still Tighten the barrel until firm contact is made Take care when working with this connector If the connector is mechanically degraded in any way high frequency losses can occur Refer to application note 326 Coaxial Systems Principles of Microwave Connector Care HP part number 5954 1566 for more information 5 7 Front Rear Panel Connectors HP IB Connector This connector allows the synthesizer to be connected to other instruments or devices on the interface bus Details of this cable are shown in Figure 5 4 HP part numbers for various HP IB cables that are available are shown in the table following the figure Figure 5 4 HP IB Connector and Cable Table 5 1 HP IB Interface Cables Available HP IB Cable Length Part Number HP 10833A 1 m 3 3 ft HP 10833B 2 m 6 6 ft HP 10833C A m 13 2 ftl HP 10833D 0 5 m 1 6 ft 5 8 Front Rear Panel Connectors As many as 14 HP IB instruments can be connected to the synthesizer 15 total instruments in the system The cables can be interconnected in a star pattern one central instrument with the HP IB cables emanating from that instrument like spokes on a wheel or in a linear pattern like boxcars on a train or a combination of the two There are certain restricti
89. ddress no capability L3 Listener capable of basic listener and unaddress if MTA LEO Listener Extended address no capability SR1 Service Request complete capability RL1 Remote Local complete capability PPO Parallel Poll no capability DC1 Device Clear complete capability DTO Device Trigger no capability C1 Controller capability system controller E2 Electrical specification indicating tri state outputs These codes are described completely in the IEEE Standard 488 1978 IEEE Standard Digital Interface for Programmable Instrumentation or the identical ANSI Standard MC1 1 5 10 Display The HP 88711A 12A and 83711B 12B front panel display contains an area for displaying the current operating parameters of the synthesizer Front panel annunciators show the status of several of the synthesizer functions and settings DISPLAY PI PACKARD _ SyNTHESZED SGNAL GENERATOR 1 2007 TR 7 CARRIER F 1586274 00GHz 6605dBm MULT EXT REF SPCL LYLER RMT LSN MK SRO ALC INSTRUMENT STATE SAVE ENTRY OFF mme f 1 Foe gee ANNUNCIATORS Figure 5 5 Synthesizer Display A description of the display follows Annunciators The front panel annunciators show the status of several of the synthesizer functions and settings An annunciator that is in fluorescent display is not visible if its associated function is not active or selected
90. des are not jammed o Contact the nearest Hewlett Packard office for service if necessary Installing and Verifying the Synthesizer If the synthesizer MSG LED annunciator remains on after the power up test is complete NOTE Error message 4i f will remain on after the power up test if the instrument has the Option 1E5 installed and has been disconnected from the mains power This error should go away after a short warm up period If the synthesizer MSG annunciator is on there is a problem with the synthesizer To determine the error and turn off the MSG annunciator refer to To Read the Contents of the Error Queue in Chapter 2 and the listing of error messages in Chapter 8 Self Test Failures If the Self Test Fails o Check the contents of the error queue for error messages To determine errors and clear them refer to To Read the Contents of the Error Queue in Chapter 2 and the listing of error messages in Chapter 8 Installing and Verifying the Synthesizer Performing Fundamental Synthesizer Operations Performing Fundamental Synthesizer Op erations This chapter describes fundamental synthesizer operations The purpose of this chapter is to familiarize you with the fundamental operation of the synthesizer Procedures cover how to enter or modify data how to set the HP IB address how to save and recall instrument states etc NOTE This product has been designed and te
91. dicates that one or more special functions are enabled This annunciator indicates that the synthesizer output is currently being leveled using stored level correction data This annunciator indicates that the instrument is in the HP IB remote state that is the instrument is under control of an external HP IB controller This annunciator indicates that the instrument is addressed to listen accept data or commands This annunciator indicates that the instrument is addressed to talk output data This annunciator indicates that the instrument is generating a service request to the external controller This LED annunciator indicates that one or more of the synthesizer frequency control circuits is not phase locked This LED annunciator indicates that the synthesizer output power is unleveled When the UNLVL annunciator is lit the power level shown in the display might be incorrect This LED annunciator indicates that uncleared error messages are in the synthesizer front panel error queue 5 4 Front Rear Panel Annunciators See Also Connectors Display EXT DIODE EXT METER INT LEVEL SG MULTIPLIER ETD 5 5 Connectors se aoe OOD OF ram REVERSE PUR A Pa hak ov BE ALC IN RF OUTPUT Figure 5 2 Synthesizer Connectors Front Panel 5V GHz ALC IN OUT OPTIONAL HP 1B RF OUTPUT COPTIOQNAL 3 1 MHz 1 MHz IN OUT Figure 5 3 Synthesizer Connectors
92. display default state no parameters are active To use the ENTER key to return the display to the default state press the ENTER key without first pressing a numeric key that is the keys numbered 0 through 9 For example if a multiplier value of 5 is entered the display will continue to show FREQUENCY MULTIPLIER 3 after the entry is terminated with the cursor over the 5 Pressing ENTER again will return the display to the default state mentioned above Equivalent SCPI Command There is no equivalent SCPI command for the ENTER key however sending the SYST KEY 58 command is effectively the same as pressing the ENTER key Keys Shifted Functions ENTER Hz See Also ADDRESS MULTIPLIER PWR MTR ADDRS RCL CR RECALL SAVE SAVE CR Pct SYSTem KEY 6 14 ENTRY OFF Invoking the ENTRY OFF function pressing the SHIFT key and then the key disables the parameter entry modification keys The parameter entry modification keys include the numeric keypad as well as the STEP SIZE and keys and the knob Once the ENTRY OFF function has been enabled it will be cancelled as soon as one of the function keys FREQ POWER LEVEL etc is pressed Equivalent SCPI Command There is no equivalent SCPI command for the ENTRY OFF function however sending the SYST KEY 0 KEY 45 command is effectively the same as pressing SHIFT See Also
93. dules or options are installed that extend the CW frequency range of the synthesizer this frequency range will be extended also 2457 RF on before running level correct 2457 The RF must be turned on before running an automatic level correction Turn RF on and try running the automatic level correction again 222 Data out of range LEVEL CORR START INC 2462 Select an automatic level correction start frequency increment from 1 kHz to 19 99 GHz If other modules or options are installed that extend the CW frequency range of the synthesizer this frequency range will be extended also If Option 1E8 is installed the limits will also change to allow for 1 Hertz resolution 222 Data out of range LEVEL CORR STOP INC 2465 Select an automatic level correction stop frequency increment from 1 kHz to 19 99 GHz If other modules or options are installed that extend the CW frequency range of the synthesizer this frequency range will be extended also If the Option 1E8 is installed the limits will also change to allow for 1 Hertz resolution 222 Data out of range HPIB ADDRESS INCR 2471 Select an HP IB address increment from 1 to 29 222 Data out of range YIG OSC CAL FREQ INC 2474 Correct the HP IB command CAL YIG FREQuency STARt STEP so that its parameter is from 1 GHz to 10 GHz 222 Data out of range POW METER ADDRESS INC 2522 Select a power meter address increment from 1 to 29
94. e microwave amplifier display NOTE The knob resolution can be changed using the gt and lt lt keys However the multiplied signal frequency resolution is further limited due to the multiplier value used For example if the multiplier value is set to 3 and the synthesizer baseband resolution is 1 kHz the resulting resolution is 3 kHz 3 6 To Use External Diode Detector Leveling External diode detector leveling is useful when you desire leveled RF output power from the synthesizer at a point other than the RF OUTPUT connector External diode detector leveling uses the following external equipment Equipment Requirements Diode Detector ust be specified for use at the desired synthesizer output requency Must produce greater than 1 mv of ALC voltage or the power levels present at the sampling point Detector can be either positive or negative Power Splitter ust be specified for use at the desired synthesizer output or requency Directional Coupler Power Meter one optional Power Sensor ust be capable of measuring power at the frequency and optional evel present at the sampling point in the leveling loop Cables and Adapters You must supply the cables and adapters necessary to connect the equipment NOTE The power meter and power sensor are not required but are helpful when adjusting the synthesizer output power for the desired power level at the output
95. e configurations 5 16 ower cables 5 16 POWER LEVEL 6 41 ower meter address function 7 10 ower meter leveling advantages 6 23 applications 6 22 disadvantages 6 23 equipment limitations 6 22 using 3 11 power meter select function 7 12 POWER switch v 5 15 power up problems 1 8 11 PRESET 6 43 problems data entry 2 13 14 power up 1 8 11 programming 2 15 RF output 3 23 programming problems 2 15 PWR MTR ADDRS 7 10 PWR MTR SELECT 7 12 rack mount and handle kit option 1CP 4 21 rack mount kit option 1CM 4 21 rack slide kit option 1CR 4 21 RCL CR 6 45 reading the error queue 2 10 RECALL v 6 46 recalling synthesizer states 2 8 remote language 7 14 restrictions HP IB 5 8 RF ON OFF 6 48 RF OUTPUT connector v 5 7 RF output problems 3 23 RMT annunciator 2 13 5 4 Index 7 S sales and service office table 9 10 SAVE v 6 49 SAVE CR 6 50 saving synthesizer states 2 8 self test running 1 7 SELF TEST 7 15 self test failures 1 11 self test function 7 15 serial number 7 18 service documentation option OBW 4 23 service related special functions 7 17 SHIFT v 6 52 SHOW INFO 7 18 show information function 7 18 software version number 7 18 source modules multiplier values for 3 4 SPCL v 6 53 SPCL annunciator 5 3 SPCL OFF 6 54 SPCL ON 6 56 special functions v 6 53 7 2 service related 7 17 specifications 4 3 4 17 square law region diode detector 6 17 6 18
96. e explanation for error number 4000 330 Self test failed 4003 See the explanation for error number 4000 330 Self test failed 4004 See the explanation for error number 4000 330 Self test failed 4005 See the explanation for error number 4000 330 Self test failed 4006 See the explanation for error number 4000 330 Self test failed 4007 See the explanation for error number 4000 330 Self test failed 4008 See the explanation for error number 4000 330 Self test failed 4009 See the explanation for error number 4000 330 Self test failed 4010 See the explanation for error number 4000 8 37 Error Messages Messages 4011 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 330 Self test failed 4011 See the explanation for error number 4000 330 Self test failed 4012 See the explanation for error number 4000 330 Self test failed 4013 See the explanation for error number 4000 330 Self test failed 4014 See the explanation for error number 4000 330 Self test failed 4015 See the explanation for error number 4000 330 Self test failed 4016 See the explanation for error number 4000 330 Self test failed 4017 See the explanation for error number 4000 330 Self test failed 4018 See the explanation for
97. e output power level When the level correct data has been enabled the LVL CR annunciator will be lit 15 Disconnect the power meter and power sensor from the level correct setup The output of the external signal path can now be connected to the device under test The data stored in non volatile memory will only be valid for the current external signal path If the external signal path is changed the level correct routine will have to be rerun NOTE The table of level correct values should be stored in one of four level correction register locations for later use 3 18 Generating Signals with the Synthesizer To Use the Level Correct Routine To store the table of level correct values in a level correction register location perform the following procedure 1 Press the SHIFT key and then the INT LEVEL SAVE CR key is the current level where iii The display will show correction register number 2 Enter the desired level correction register number For example use the following procedure to choose level correction register number 2 a Type 2 on the synthesizer numeric keypad b Terminate the level correction register number entry by pressing the Hz ENTER key NOTE Once the level correction register number entry has been terminated the current table of level correct values will write over any old level correct data stored at that register location Related Ta
98. ection register number entry by pressing the Hz ENTER key 4 Press the SHIFT key and then the POWER LEVEL LVL CR ON OFF key to enable the synthesizer to use of level correct data when determining the output power level When the use the level correct data has been enabled the LVL CR annunciator will be lit 3 20 Generating Signals with the Synthesizer To Use Previously Stored Level Correct Data Related Tasks e To Use the Level Correct Routine 3 21 If You Encounter a Problem If you have a problem generating signals with the synthesizer check the following list of commonly encountered problems and troubleshooting procedures If the problem involves data entry check the section in Chapter 2 entitled If You Encounter a Problem If the problem that you encounter is not in the following list or in Chapter 2 contact the nearest Hewlett Packard office for assistance Annunciators Turned On If the UNLVL LED annunciator is on o Check the leveled power specification to make sure that you have not exceeded the specification The maximum power specification is frequency dependent Typically less maximum power is available as the synthesizer output frequency is increased o If external diode detector leveling or external power meter leveling is being used ensure that the leveling loop is not opened o If external diode detector leveling or external power meter leveling is being
99. ee Also SPCL Equivalent SCPI Command SPCL OFF kHz Equivalent SCPI Command See Also SPCL ON MHz Equivalent SCPI Command See Also STEP SIZE Equivalent SCPI Commands See Also 6 41 rr 6 42 6 42 6 43 6 44 6 44 6 45 6 46 6 46 6 47 6 47 6 47 6 48 6 48 6 48 6 49 6 49 6 49 6 50 6 51 6 51 6 52 6 52 6 52 6 53 6 53 6 54 6 54 6 55 6 56 6 56 6 56 6 57 6 57 6 58 Contents 5 7 Special Functions ATTEN HOLD ON OFF Applications Advantages Disadvantages Equivalent SCPI Command See Also o o a a CLEAR DISPLAY Equivalent SCPI Command See Also oaa ERASE MEMORY Application Equivalent SCPI Command See Also Loe PWR MTR ADDRS ee Equivalent SCPI Command See Also o PWR MTR SELECT ooa Equivalent SCPI Command See Also REMOTE LANGUAGE Loe Equivalent SCPI Command See Also Loe SELF TEST Equivalent SCPI Command See Also Service Related Special Functions See Also SHOW INFO Equivalent SCPI Command See Also re 8 Error Messages Error Messages List Messages Contents 6 9 Legal and Regulatory Information Safety Symbols 2 2 2 eee ee 9 3 Miscellaneous Symbols 2 2 ee 9 4 Safety Considerations 2 2 9 5 Before Applying Power 2 2 4224 9 5 Safety Earth Ground 2 ee 9 5 Cleaning the Product 202 9 6 Certification 2
100. efungsergebnis nach DIN 45635 pt 19 4 17 Specifications and Options HP 83712A 12B Specifications Power Requirements Power 90 132V 48 440 Hz 198 264V 48 66 Hz 260 VA maximum Physical Dimensions Net Weight lt 16 kg 35 1b Shipping lt 23 kg 49 1b Size 498 mm D x 426 mm W x 133 mm H 19 6 x 16 8 x5 2 Transit case available by ordering HP Part Number 9211 2655 Front Panel Connectors RF OUTPUT The standard front panel RF OUTPUT connector is a Type N precision connector When Option 1E9 is installed this front panel connector is a 3 5 mm precision connector The nominal source impedance is 509 ALC IN This front panel BNC connector allows the synthesizer to be externally leveled It is used with external power meter leveling or external diode leveling The leveling signal at this input must be in the 1V range The nominal input impedance is 150 kQ The damage level is gt 12 V or lt 12 V 4 18 Specifications and Options HP 83712A 12B Specifications Rear Panel Connectors 10 MHz Input Accepts a 10 MHz 100 Hz 0 to 10 dBm external reference signal for operation from an external high stability timebase Nominal input impedance is 500 10 MHz Output Outputs the 10 MHz reference signal nominally 3 dBm for use as an external reference signal Nominal source impedance is 50Q 0 5V GHz Output Supplies a voltage proportional to output frequency for use with mm wave frequ
101. elected over external diode leveling or external power meter leveling Advantages of Internal Leveling Internal leveling is self contained it does not require any external equipment as does external diode leveling or external power meter leveling Leveled power is specified at the RF OUTPUT connector Disadvantages of Internal Leveling Internal leveling does not compensate for losses or gains in the output signal path 6 28 Keys Shifted Functions INT LEVEL Equivalent SCPI Commands POW ALC SOUR INT enables internal leveling See Also EXT DIODE EXT METER POWER LEVEL SOURce 1 POWer ALC To Use the Level Correct Routine in Chapter 3 6 29 LOCAL The LOCAL key removes the synthesizer from the remote state When the synthesizer is no longer in the remote state the RMT annunciator in the display will no longer be lit If the instrument is in the local lockout LLO state pressing the LOCAL key will not remove the instrument from the remote state In this case the only way to return the synthesizer to local operation is either by setting the REN bus control line false or sending the instrument the go to local GTL bus command Equivalent SCPI Command There is no equivalent SCPI command for the LOCAL key however sending the SYST KEY 8 command is effectively the same as pressing the LOCAL key See Also Connectors SYSTem KEY 6 30 LVL
102. ency multipliers including the HP 83550 Series Millimeter Wave Source Modules 4 19 Option 1E1 Add Output Step Attenuator Option 1E5 Add High Stability Timebase Option 1E8 1 Hz Frequency Resolution Options There are several electrical mechanical warranty and documentation options available for the CW Generator Electrical Options There are four electrical options available for the CW Generator These options are as follows If Option 1E1 is ordered an internal step attenuator is included before the RF OUTPUT connector The step attenuator has a range of 0 to 110 dB 90 dB for 83711A 83712A in 10 dB steps O 110 dB for 11B 12B The correct amount of attenuation is selected automatically by the CW Generator dependent on the output power level selected If this option is installed you can select whether or not the step attenuator will automatically switch This function is useful during certain applications such as when external automatic level control is used lt idxadd high stability timebase option 1E5 If Option 1E5 is ordered the CW Generator is shipped with a 10 MHz temperature controlled crystal reference oscillator for increased frequency accuracy and stability If Option 1E5 is installed the CW Generator must be connected to AC mains power to keep the reference oscillator at operating temperature If the reference oscillator has not been connected to mains power the oven is cold the C
103. ernal reference Frequency Switching Time lt 50 ms to within 1 kHz For lt 1 GHz steps not across 10 GHz band switch point lt 35 ms HP 83712B only 4 9 Specifications and Options HP 83712A 12B Specifications RF Output Maximum Leveled Output Power 0 C to 35 C Frequency Standard with Option 1E1 0 01 1 GHz 13 dBm 13 dBm 1 20 GHz 11 dBm 10 dBm 20 i Se aera 0 4 B 12 16 20 Carrier Frequency GHz Power dBm Figure 4 6 Typical Maximum Available Output Power from 1 to 20 GHz at 25 C with Output Step Attenuator Option 1E1 Installed 4 10 Specifications and Options HP 83712A 12B Specifications Carrier Frequency GHz Figure 4 7 Typical Maximum Available Output Power from 0 01 to 1 GHz at 25 C Minimum Leveled Output Power without Option 1E1 0 dBm Minimum Leveled Output Power with Option 1E1 110 dBm 90 dBm for HP 83712A Display Resolution 0 01 dB Accuracy 0 dBm to specified maximum leveled output power 10 MHz to 50 MHz 50 MHz to 20 GHz 1 3 dB 1 0 dB Accuracy over all power levels 10 MHz to 50 MHz 50 MHz to 20 GHz 10 MHz to 20 GHz 2 3 dB power gt 90 dBm t2 0 dB power gt 90 dBm t2 5 dB power lt 90 dBm The use of Type N RF connectors above 18 0 GHz degrades specification typically by 0 2 dB Flatness 0 5 dB power g
104. error number 4000 330 Self test failed 4019 See the explanation for error number 4000 330 Self test failed 4020 See the explanation for error number 4000 330 Self test failed 4021 See the explanation for error number 4000 330 Self test failed 4022 See the explanation for error number 4000 330 Self test failed 4023 See the explanation for error number 4000 330 Self test failed 4024 8 38 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 See the explanation for error number 4000 330 Self test failed 4025 See the explanation for error number 4000 330 Self test failed 4026 See the explanation for error number 4000 330 Self test failed 4027 See the explanation for error number 4000 330 Self test failed 4028 See the explanation for error number 4000 330 Self test failed 4029 See the explanation for error number 4000 330 Self test failed 4030 See the explanation for error number 4000 330 Self test failed 4031 See the explanation for error number 4000 330 Self test failed 4032 See the explanation for error number 4000 330 Self test failed 4033 See the explanation for error number 4000 330 Self test failed 4034 See the explanation for error number 4000 330 Se
105. es z If you press the Hz ENTER key the synthesizer begins collecting new level correction data For each frequency point in the table the synthesizer sends the power meter the frequency waits for the meter to settle and then reads the power value from the power meter As the correction runs the synthesizer calculates the loss data by subtracting the power meter reading from the current power level The synthesizer power level is constant during the level correct routine 6 32 Keys Shifted Functions LVLCR Notes 1 If the level correction routine is aborted by pressing the LOCAL key the existing level correction data will be unaffected 2 After the level correction routine has successfully completed save the level correction data to the level correction table chosen by the SAVE CR function If the routine fails the entered start and stop frequencies and number of paints will remain at what they were set at Be aware however that the data in the level correct table will still reflect the last successful level correction that was run Once the synthesizer has completed the level correct routine and the new level correction table has been generated it is resident in the synthesizer volatile memory Pressing PRESET will erase the table The table should be stored in one of four level correction table registers The start frequency lower limit is equal to the synthesizer lower frequency limi
106. for later use If the power meter is in a favorable range the level correct routine takes approximately two minutes to run NOTE When using the level correct routine the external path to the synthesizer must be linear must have a 1 dB per 1 dB transfer function Using the level correct routine requires the following external equipment Equipment Requirements HP 4378 438A 70100A or No substitute SCPI compatible power meter Power Sensor Must be compatible with the power meter used Must be capable of measuring power at the frequencies and levels present at the output of the signal path being leveled 3 14 Generating Signals with the Synthesizer To Use the Level Correct Routine In addition you must supply the cables and adapters necessary to connect the equipment 1 Connect the equipment as shown in Figure 3 4 HP 83711A SYNTHESIZED SIGNAL GENERATOR POWER METER POWER EXTERNAL A SIGNAL PATH SENSOR Eee eeeee f Figure 3 4 Level Correct Routine Equipment Setup 2 Set the address that the synthesizer will use to address the power meter during the level correct routine For example use the following procedure to set the power meter address to 23 a Press the SPCL key b Type on the synthesizer numeric keypad c Press the Hz ENTER key You will be prompted to enter the power meter address d Type on the synthesizer numeric keypad e Terminate the po
107. frequency pressing any terminator key while a numeric parameter entry is not in progress will cause the synthesizer to go to stop frequency entry mode When in stop frequency entry mode the synthesizer will display Stop frequency entry is identical to start frequency entry The stop frequency i is used to determine the ending frequency for the level correction table The stop frequency is the last frequency point in the table Once you have chosen the proper stop frequency pressing any terminator key while a numeric parameter entry is not in progress will cause the synthesizer to go to number of points entry mode When in number of points entry mode the synthesizer will display 2 amp 7 The number of points value determines how many frequency points will be in the level correct table The number of points includes the start and stop frequency points The synthesizer uses the start and stop frequency values and number of points and places evenly spaced frequency points in the level correction table Note that if the calculated frequency points are not within the synthesizer frequency resolution they will be rounded Once you have chosen the proper number of points pressing any terminator key while a numeric parameter entry is not in progress will cause the synthesizer to ask if you want to run the level correction routine e When the synthesizer is asking if you want to run the level correction routine the display indicat
108. h a protective earth contact Any interruption of the protective conductor inside or outside of the product is likely to make the product dangerous Intentional interruption is prohibited Whenever it is likely that the protection has been impaired the system must be made inoperative and be secured against any unintended operation Servicing instructions are for use by service trained personnel only To avoid dangerous electric shock do not perform any servicing unless qualified to do so Adjustments described in the manual are performed with power supplied to the system s instruments while protective covers are removed Energy available at many points may if contacted result in personal injury Capacitors inside the system s instruments might still be charged even if the system has been disconnected from its source of supply For continued protection against fire hazard replace the line fuses only with 250 V fuses of the same current rating and type for example normal blow time delay etc The use of other fuses or materials is prohibited Cleaning the Product Clean the synthesizer cabinet using a damp cloth only 9 6 Certification Hewlett Packard Company certifies that this product met tts published specifications at the time of shipment from the factory Hewlett Packard further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology N
109. he keys the display shows the numbers that are entered 3 Press the appropriate units terminator key to enter the value The units terminator keys appear to the right side of the numeric keypad The following steps show how to enter a value of 9 5 dBm for power level a Press the POWER LEVEL key b Press on the numeric keypad c Press the dBm Ghz key to terminate the entry Once you terminate the entry the synthesizer updates the power level value to 9 5 dBm 2 3 To Modify Data with the Knob The knob on the synthesizer front panel is used to modify data You turn the knob in order to increase or decrease the parameter value of the currently active function Additionally you can modify the position of the cursor v that is over the active parameter in order to increase or decrease the rate at which the function parameter changes 1 Select the function key of the parameter to be modified When the function key is selected the cursor appears over one of the digits of the selected parameter For example to select the frequency function press the FREQ key The frequency parameter is selected when the cursor appears over one of the digits of the frequency display 2 Turn the knob clockwise to increase the parameter or counterclockwise to decrease the parameter When you turn the knob the digit under the cursor increases or decreases in steps of one For example when frequency is in its prese
110. hesizer frequency display will show the frequency at the output of the millimeter source module not the synthesizer RF OUTPUT connector For example if you want to generate a 30 GHz CW only signal perform the following steps a Press the FREQ key b Type Go on the numeric keypad c Press the GHz key to terminate the entry If the RF output is currently turned off press the key to turn it on If the RF output is off the word the right most display Press the INT LEVEL key to enable internal leveling appears in the power level portion of Set the approximate desired RF output power at the output of the millimeter source module using the display on the microwave amplifier For example to set the level to 0 dBm press POWER LEVEL and rotate the synthesizer knob until 0 dBm is shown on the microwave amplifier display Press the EXT DIODE key 3 5 Generating Signals with the Synthesizer To Generate Millimeter Signals 8 Set the RF output power level desired at the output of the millimeter source module using the display on the microwave amplifier The display on the microwave amplifier shows the power level at the output of the source module to within 2 dB You should use the display on the microwave amplifier not the synthesizer when adjusting the RF output power For example to set the output power level to 0 dBm press the key and rotate the knob until 0 dBm is shown on th
111. iode detector leveling EXT DIODE and external power meter leveling EXT METER Refer to the respective reference entries in this chapter for information on the different leveling options 6 41 Keys Shifted Functions POWER LEVEL Equivalent SCPI Command POW level sets the synthesizer output power level as defined by the level parameter See Also EXT DIODE EXT METER INT LEVEL SOURce 1 POWer LEVel SOURce 1 POWer UNIT 6 42 PRESET The PRESET key sets the synthesizer to a known state The preset conditions are shown in the following table Table 6 1 PRESET Conditions Parameter Condition Parameter Condition CORRection STATe OFF POWer ALC SOURce INT CORRection CSET SELect FDAT1 POWer ALC PMETer LEVel 0 dBm CORR CSET STATe OFF POWer ATTenuation AUTO ON DISPlay WINDow STATe 0 POWer PROTection S TAle OFF FREQuency CW 3 GHz SYSTem CO MMunicate GPIB ADDress 192 FREQuency MULTiplier 1 SYSTem C0 MMunicate PMETer ADDress 132 ME Mory TABLe SELect FDAT1 SYSTem LANGuage SCPI OUTPut STAe 0 UNIT FREQuency HZ OUTPut PRO Tection S TATe 0 UNIT POWer DBM POWer LEVel 0 dBm UNIT TI Me S 1 When Option 1E1 is installed the preset value for power level is 90 dBm for the HP 837311A 12A and 110 dBm for the HP 83711B 12B 2 Do not change with preset These are default values when RAM memory is lost
112. is 1494 0059 If a non HP rack enclosure is used rack adapters can be ordered to allow the slide kit to be used with the non HP rack The part number for metric rack adapters is 1494 0023 and the part number for standard inch rack adapters is 1494 0061 4 2 Op ion W30 Two Additional Years Re Op Re Se urn to HP Service ion W32 Three Year urn to HP Calibration vice Option OBO Delete Operating Documentation Specifications and Options Options Warranty Options There are two warranty options available for the synthesizer These options are as follows This option extends the benefits of factory warranty to provide a total of 3 years of customer return repair service This option provides 3 years of HP calibration service at HP customer service centers Documentation Options There are two documentation options available for the synthesizer If the documentation was not ordered with the original shipment and is now desired it can be ordered from the nearest Hewlett Packard office using the part numbers included in each of the following paragraphs These options are as follows If Option OBO is ordered the shipment deletes copies of the HP S3711A 12A and HP 3711B 12B Synthesized CW Generators User s Guide the HP 83711A 12A and HP 83711B 12B Synthesized CW Generators Programming Guide the HP 3711A 12A and HP 3711B 12B Synthesized CW Generators Quick Start Guide and the HP S87
113. k 10k 100k 1M 10M Offset Hz Figure 4 9 Typical single sideband phase noise at 50 MHz 1 GHz 10 GHz and 20 GHz 25 C CW mode Offsets less than 100 Hz require the high stability timebase Option 1E5 Harmonics lt 55 dBc at output levels lt 6 dBm 0 01 to 1 GHz Harmonics lt 50 dBc at output levels lt 6 dBm 1 to 20 GHz 4 14 Specifications and Options HP 83712A 12B Specifications 50 80 Pr 85 H S z5 AM ao N nt Why Spi 8 5 J sH Harmonic dBc 0 Pt 4 6 Carrier Frequency GHz Figure 4 10 Typical 2nd Harmonic Levels Measured at Output Power of 6 dBm Non Harmonic Spurious gt 3 kHz lt 60 dBc includes power supply and frequency synthesis spurious Non Harmonic Spurious lt 3 kHz lt 50 dBc Sub Harmonics None 4 15 Specifications and Options HP 83712A 12B Specifications Residual FM At 1 GHz lt 15 Hz in 50 Hz 15 kHz bandwidth Residual FM decreases 6 dB per octave below 1 GHz N Z o BS gt Q oO a ma 12 Carrier Frequency GHz Figure 4 11 Typical Residual FM Measured in 50 Hz 15 kHz Bandwidth CW mode with High Stability Timebase Option 1E5 AM Noise Floor at 0 dBm and offsets greater than 5 MHz from carrier lt 150 dBm Hz 1 20 GHz lt 140 dBm Hz 0 01 1 GHe 4 16 Specifications and Options HP 83712A 12B Specifications General Programming
114. l correction table function pressing the key and then the EXT DIODE key allows you to save the current table of level correction data in one of four level correction register locations The allowable range for register locations is 1 through 4 When SHIFT EXT DIODE is pressed the text will be shown on the synthesizer display where is the last level correction register number entered Once you press a valid numeric key 1 through 4 and terminate the entry by pressing Hz ENTER the table of level correction data will be saved to the location indicated by the numeric key pressed Saving the table of level correction data to a given level correction register location will write over any level correction data previously stored at that location NOTE The four level correction registers are separate fram the instrument state registers Level correction data is not cleared from memory when the synthesizer is set to the preset state and is unaffected if an instrument state is recalled from one of the instrument state registers 6 50 Keys Shifted Functions SAVECR Equivalent SCPI Command There is no equivalent SCPI command for the SAVE CR function however the MEM TABL FREQ and MEM TABL LOSS MAGN commands can be used to load frequency and correction factor points into a selected level correct table See Also LVL CR LVL CR ON OFF RCL CR To Use the Level Correct Routine
115. le MEM TABL FREQ command was rejected leaving the old selected table unaltered 734 Frequency table not in ascending order 734 The active level correction table does not contain frequencies in ascending order Select a level correction table with valid data perform an automatic level correction to get valid data into the active table or use HP IB to load a table with ascending ordered frequencies This is a permanent error 735 Level correct points less than 2 735 The number of points in a level correction table must be from 2 to 401 Either too few points were entered or duplicate frequencies caused the number of real points to shrink below 2 736 Factory level corr 1 20 GHz 1 9 table 736 737 738 739 740 741 742 743 Error Messages Messages Factory frequency level correction data for 1 20 GHz band non thru paths are not valid If you need to use this frequency range and you are using a step attenuator see the explanation for error number 4000 737 Factory level corr 0 01 1 GHz 1 9 table 737 Factory frequency level correction data for 0 01 1 GHz band non thru paths are not valid If you need to use this frequency range and you are using a step attenuator see the explanation for error number 4000 738 Factory level corr 0 01 1 GHz 0 dB table 738 Factory frequency level correction data for 0 01 1 GHz band thru path is not valid If you need t
116. lf test failed 4035 See the explanation for error number 4000 330 Self test failed 4036 See the explanation for error number 4000 330 Self test failed 4037 See the explanation for error number 4000 Error Messages Messages 8 39 Error Messages 4038 4039 4040 4041 4042 4043 4044 4045 9000 9500 9999 330 Self test failed 4038 See the explanation for error number 4000 330 Self test failed 4039 See the explanation for error number 4000 330 Self test failed 4040 See the explanation for error number 4000 330 Self test failed 4041 See the explanation for error number 4000 330 Self test failed 4042 See the explanation for error number 4000 330 Self test failed 4043 See the explanation for error number 4000 330 Self test failed 4044 See the explanation for error number 4000 330 Self test failed 4045 See the explanation for error number 4000 330 Self test failed 9000 See the explanation for error number 4000 Many different error messages can occur here Errors with a number from 9500 to 9999 are MMS MSIB errors These errors occur when the synthesizer has some problem with communication over the MSIB bus See the explanation for error number 4000 8 40 Legal and Regulatory Information Legal and Regulatory Information This chapter con
117. macro parameter placeholder was encountered outside of the macro definition 180 Macro error 180 An error occurred while attempting to define query or use a macro Check that the macros are correct using LMC and GMC 178 Expression data not allowed 178 Correct the HP IB controller program so that the data included with the HP IB command does not contain parentheses 171 Invalid expression 171 The expression contained a syntax error like unmatched parenthesis or an illegal character 170 Expression error 170 The expression contains a syntax error 168 Block data not allowed 168 Correct the HP IB controller program so that the data included with the HP IB command does not contain block data no character 161 Invalid block data 161 Correct the HP IB controller program so that it contains a correct block data type A block data type should begin with followed by a number 160 Block data error 160 The block data contains a syntax error 158 String data not allowed 158 Correct the HP IB controller program so that the data included with the HP IB command does not contain string data no single or double quote characters 151 Invalid string data 151 Correct the HP IB controller program so that the string data included with the HP IB command is terminated with a single or double q
118. mber of points entry remains on the display after it is terminated so that it can be modified using the knob or f J keys if desired Press the Hz CENTER key When the Hz ENTER key is pressed the words appear in the left most display Press Hz ENTER to run the level correct routine The level correct routine can be aborted before it begins running by pressing the LOCAL key It can also be aborted any time while it is running by pressing the LOCAL key As the level correct routine is running the right most display will be blanked and the left most display will show each frequency point and measured power level as each measurement occurs When the level correct routine has finished running the left most display will blank and the frequency and output power level will return to the right most display 3 17 Generating Signals with the Synthesizer To Use the Level Correct Routine NOTE As the routine is running the synthesizer sends the power meter each frequency point so that the correct calibration factor at each frequency can be used For best accuracy the correct calibration factors for the power sensor being used should be entered into the power meter prior to running the level correct routine 14 When the level correct routine has finished running press the SHIFT key and then the POWER LEVEL LVL CR ON OFF key to enable the synthesizer to use the level correct data when determining th
119. n a socket outlet provided with a protective earth contact Any interruption of the protective conductor inside or outside of the product is likely to make the product dangerous Intentional interruption is prohibited 4 Push the module end of the power cable into the power module on the rear panel of the synthesizer until it is firmly seated Connect the plug end of the power cable to a suitable mains power receptacle Set the POWER switch LINE on an HP 83711A 12A to on 1 When you turn the synthesizer on the displays and annunciators light momentarily and the ventilation fan starts In addition it is normal for the LED annunciators including the MSG LED to turn on and then off during a power up test The MSG LED should be off when the power up test is complete NOTE Error message will remain on after the power up test if the instrument has the Option 1E5 installed and has been disconnected from the mains power This error should go away after a short warm up period Once the power up test is complete frequency and power level will be displayed in the right most display and pulse parameters will be shown in the display if pulse modulation is enabled 1 6 Verifying Synthesizer Functionality The verification procedure is suitable for incoming inspection however you can refer to the HP 83711A 12A and amp 3711B 12B Synthesized CW Generators Service Guide or the HP 83711A 12A HP 837
120. nction is useful when removing the synthesizer from a secure area as the setup history of the synthesizer will be erased Equivalent SCPI Command MEM RAM INIT clears synthesizer memory 7 8 Special Functions ERASE MEMORY See Also PRESET RCL CR RECALL SAVE SAVE CR MEMory RAM INITialize ALL 7 9 PWR MTR ADDRS Invoking the PWR MTR ADDRS power meter address function pressing PCL 20 Hz ENTER changes the HP IB address that the synthesizer uses when communicating with an external power meter during the level correct routine When SPCL 20 Hz is pressed you will be prompted to enter the address that the synthesizer will use when communicating with the external power meter or when receiving data from the external power meter during the level correct routine The valid power meter address range is 00 to 30 decimal The external power meter HP IB address set at the factory is 13 Setting the synthesizer to the preset state will not modify the address NOTE This function dees not set the address at the power meter You should refer to the power meter manual for information on how to change the power meter address 7 10 Special Functions PWR MTR ADDRS Equivalent SCPI Command SYST COMM PMET ADDR address changes the HP IB address that the synthesizer uses when communicat ing with an external power meter as defined by the address parameter See Als
121. nel Front Rear Panel This chapter contains detailed information on various aspects of the synthesizer front and rear panel Information on the synthesizer display front panel connectors power cable etc can be found in this chapter 5 2 Annunciators The HP 88711A 12A and 83711B 12B front panel display contains annunciators that show the status of several of the synthesizer functions and settings INT ALC EXT REF LVL CR DIODE MULT SPCL Fp HEWLETT 83711 is PACKARD SNTHESZED SIGNAL jenn CARRIER A as 74opagHz 46 za _ aS _ INSTRUMENT STATE ENTRY C a sll l E eonna o lw UNLOCK MSG Figure 5 1 Synthesizer Display Annunciators All annunciators except the UNLOCK UNLVL and MSG annunciators are contained on the fluorescent display A description of each of the annunciators follows INT ALC This annunciator indicates that internal power leveling is selected DIODE ALC This annunciator indicates that external diode power leveling is selected MTR ALC This annunciator indicates that external power meter leveling is selected MULT This annunciator indicates that the frequency multiplier function is active EXT REF This annunciator indicates that an external time base is currently being used 5 3 Front Rear Panel Annunciators SPCL LVL CR RMT LSN TLK SRQ UNLOCK UNLVL MSG This annunciator in
122. ng Loe eee Applications 2 a a a a Advantages of Diode Detector Leveling Disadvantages of Diode Detector Leveling Equivalent SCPI Command See Also Loe EXT METER External Power Meter Leveling Applications External Equipment Limitations Power Meter Power Sensor Advantages of Power Meter Leveling Disadvantages of Power Meter Leveling Equivalent SCPI Commands See Also Loe FREQ Equivalent SCPI Command See Also Loe INT LEVEL Advantages of Internal Leveling Disadvantages of Internal Leveling Equivalent SCPI Commands See Also Loe LOCAL Equivalent SCPI Command See Also re LVLCR Equivalent SCPI Command See Also 7 aa LVL CR ON OFF Equivalent SCPI Commands See Also Loe MSG Equivalent SCPI Command See Also Loe MULTIPLIER Equivalent SCPI Command See Also Loe Numeric Keypad Lo e See Also 2 2 ee eee 6 40 1 i 1 i 1 i 1 i 1 i 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Ww w w Ww Ww w w Www VVV VVH hhaha CESES ESR eaa e Re e E e eR E NNE aE DOD T OoOo e w w D O wo Contents 4 POWER LEVEL Equivalent SCPI Command Co See Also PRESET Equivalent SCPI Commands See Also RCL CR Equivalent SCPI Command See Also RECALL Equivalent SCPI Command See Also RF ON OFF Equivalent SCPI Command See Also SAVE Equivalent SCPI Command See Also SAVE CR Equivalent SCPI Command See Also SHIFT Equivalent SCPI Command S
123. number 1101 222 Data out of range Bit field number 1107 See the explanation for error number 1101 222 Data out of range Query port field 1108 If you are using the direct hardware control service feature you have entered an out of range query address If this error occurs while not using the direct hardware control service feature low level hardware drivers could not complete a query Try setting the synthesizer again If this error message persists run the instrument self test 1109 Query Port mode 1109 See the explanation for error number 1108 1462 Keybd processor reports status error 1462 A key press was not successful Try pressing the same key again If the error message persists see the explanation for error number 4000 1463 Keybd processor data lines incorrect 1463 A key press was not successful Try pressing the same key again If the error message persists see the explanation for error number 4000 302 8673 command not recognized 1501 While in HP 8673 emulation mode an incoming command string was not recognized as being valid Refer to the front panel error que for the command sequence 301 8673 command KO not emulated 1511 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus 8 24 1512 1513 1514 1515 1516 1517 1518 Error Messages Messages discarded
124. number or by scrolling through the list with the Gf and Q keys Note that special functions are organized in this chapter alphabetically by special function name not by special function number 7 2 ATTEN HOLD ON OFF Invoking the ATTEN HOLD ON OFF function pressing SPCL C Hz ENTER selects the attenuator hold function This function toggles between locking and unlocking the 10 dB step attenuator in its current setting NOTE The attenuator hold function is only available if Option 1E1 is installed When SPCL 2 Hz ENTER is pressed the display shows the following where is the current state of the step attenuator 2 Locked and Unlocked Once the attenuator hold function is enabled pressing MHz SPCL ON locks the synthesizer step attenuator at its current setting Pressing kHz SPCL OFF unlocks the step attenuator When the synthesizer is set to the preset state the attenuator hold function is turned off 7 3 Special Functions ATTEN HOLD ON OFF Applications The attenuator hold function can be used to extend the vernier range to prevent the step attenuator from switching between two attenuator settings Locking the step attenuator keeps the attenuator from switching between the two levels as leveled power is varied above and below the threshold level thus saving wear on the attenuator Refer to the specification table in Chapter 4 for the level at which
125. o LVL CR LVL CR ON OFF PWR MTR SELECT RCL CR SAVE CR SYSTem COMMunicate PMETer ADDRess To Use the Level Correct Routine in Chapter 3 PWR MTR SELECT Invoking the power meter select function pressing SPCL 21 Hz ENTER allows you to set the programming language that the synthesizer will use when communicating with the power meter during the level correct routine When SPCL 21 Hz ENTER is pressed the display shows the following where 15 is the currently selected power meter language HP70100A HP437B HP438A or SCPI Once the power meter select function is enabled you can use the Q or H keys to choose one of the four power meter language options When SCPI is chosen the synthesizer will communicate with any SCPI compatible power meter When the synthesizer is set to the preset state the power meter language chosen with this command is not changed Equivalent SCPI Command There is no equivalent SCPI command for the power meter select function 7 12 Special Functions PWR MTR SELECT See Also LVL CR LVL CR ON OFF PWR MTR ADDRS RCL CR SAVE CR To Use the Level Correct Routine in Chapter 3 7 18 REMOTE LANGUAGE Invoking the remote language function pressing SPCL 25 HZ ENTER allows you to manually choose either SCPI Standard Commands for Programmable Instruments or HP 8673 compatible language When SPCL 25 HZ
126. o use this frequency range and you work with output levels that don t use the step attenuator see the explanation for error number 4000 739 Invalid data in table not recalled 739 This error indicates that a level correction table recall failed Try selecting the same level correction table again If this error message persists you will have to recreated the saved table 740 Another controller is on the HP IB bus 740 An automatic level correction was attempted but failed because there is a controller on the HP IB bus Remove all controllers from the HP IB bus and try again 741 No HP IB devices found 741 An automatic level correction was attempted but failed to find any other devices on the HP IB bus Connect the desired power meter to the HP IB bus and try again Check the HP IB cable s for loose connections 742 Errors in cleanup of HP IB 742 When exiting the automatic level correction the synthesizer failed to finish resetting the HP IB bus and presetting the power meter Make sure the power meter address matches the power meter address setting on the synthesizer Check the HP IB cable s for loose connections 743 No HP IB devices found 743 An automatic level correction was attempted but failed to find any other devices on the HP IB bus Connect the desired power meter to 8 17 Error Messages Messages 744 745 746 747 748 749 751 the HP IB bus and
127. odules or options are installed that extend the CW frequency range of the signal generator this frequency range will be extended also The following explains each element of an error message listing Manual Error Number The number 2003 to the left and in the parenthesis is called the Manual Error Number The error message list is organized in ascending order off the manual error number The manual error number will always be found in the parenthesis contained in the message Error Message The bold text 222 Data out of range CW FREQ 2003 is the error message When the MSG key is pressed the error message is displayed in the left most display The entire message is returned by the HP IB query SYSTem ERRor The error message contains the following parts o SCPI Error Number The standard SCPI error number 222 in the example usually differs from the manual error number because the manual error number is unique for every possible message Standard SCPI error numbers are always negative except for 0 No error If there is no standard SCPI error number for a message the manual error number replaces it in the error message o SCPI Error Message The SCPI error message is Data out of range in the example o Detailed Description All information after the semicolon is a detailed description of what exactly caused the error In the example CW FREQ tells you that CW frequency was out of range If
128. ommand POWer ATTenuation AUTO OFF can only be used if Option 1E1 is installed 224 Illegal parameter value REMOTE LANGUAGE 2165 Select an HP IB remote language which is available in the synthesizer SCPI is the default but others are available as options 222 Data out of range CAL FLAT 2177 Loss data for factory frequency level correction was out of range 8 32 2189 2192 2198 2210 2216 2219 2237 2240 2243 2249 2276 Error Messages Messages 224 Illegal parameter value DISPLAY STATE 2189 The display state could not be set to the state requested 224 Illegal parameter value LEV CORR STATE 2192 This command requires a boolean argument 224 Illegal parameter value EXT REF 2198 The reference oscillator could not be set to INTernal because an internal oscillator does not exist or the reference oscillator could not be set to EXTernal because an external oscillator does not exist 222 Data out of range ASSembly REVision 2210 The value must remain between 0 and 254 222 Data out of range NODE MEASURE 2216 Select a meter node number within range See the service manual for more details on this feature 222 Data out of range OPTION WRITE 2219 Select an option bit field number within range See the service manual for more details on this feature 222 Data out of range OFFSET FREQ INCR 2237
129. on 261 An expression could not be evaluated due to a math error for example a divide by zero was attempted 260 Expression error 260 An expression could not be evaluated because it contains an error 241 Hardware missing 241 The requested hardware does not exist in the synthesizer Use OPT to check which options are installed 240 Hardware error 240 The remote command or query could not be executed because of a hardware error 226 Tables not same length 226 See error 731 225 Out of memory 225 The synthesizer has run out of memory The memory requested has not been allocated 224 Illegal parameter value 224 Correct the HP IB controller program so that the data included with the HP IB command is an acceptable parameter for the command 223 Too much data 223 Correct the HP IB controller program so that there is less data on a single command line The synthesizer does not have enough memory to buffer it all 222 Data out of range 222 8 7 Error Messages Messages 221 220 213 212 211 210 201 200 184 183 The parameter data was out of range Unlike other 222 errors details are not known about the command or query which caused this error 221 Settings conflict 221 The current synthesizer state does not allow the
130. on is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command SU not emulated 1522 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command SD not emulated 1523 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command Tx not emulated 1524 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 8 26 1525 1526 1527 1528 1529 1530 1531 Error Messages Messages 301 8673 command TR not emulated 1525 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP S673 Compatibility Guide for more information 301 8673 command RS not emulated 1526 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulate
131. ons that must be followed when interconnecting instruments These restrictions are as follows e Each instrument must have a unique HP IB address ranging from 0 to 30 decimal Refer to To Set the HP IB Address in Chapter 2 for information on setting the synthesizer HP IB address e In a two instrument system that uses just one HP IB cable the cable length must not exceed 4 meters 13 2 ft e When more than two instruments are connected on the bus the cable length to each instrument must not exceed two meters 6 6 ft e The total cable length between all instruments must not exceed 20 meters 65 ft Hewlett Packard manufactures HP IB extender instruments Models HP 37201A and HP 37204A B that overcome the range limitations imposed by the cabling rules These extenders allow twin pair cable operation up to 1 km 3 280 ft and telephone modem operation over any distance HP sales and service offices can provide additional information on the HP IB extenders 5 9 Front Rear Pane Connectors The codes in the following list describe the HP IB interface capabilities of the synthesizer using IEEE Std 488 1 compatibility codes HP IB GP IB IEEE 488 and IEC 625 are all electrically equivalent Briefly the mnemonics translate as follows SH1 Source Handshake complete capability AHI Acceptor Handshake complete capability T5 Talker capable of basic talker serial poll and unaddress if MLA TEO Talker Extended a
132. packaging or comparable only Data Entry Problems If the data entry controls keypad knob W Keys do not respond o Check that the ENTRY OFF function is not enabled The ENTRY OFF function is not enabled when the cursor v appears over any of the parameters in the display To return to normal entry mode press the desired function key which has a numeric parameter associated with it for example press FREQ if you want to enter frequency Check that the function key which is selected accepts data For instance FREQ accepts data but LOCAL does not Check that the synthesizer is in the local not remote operating mode If the synthesizer is in the remote operating mode the RMT annunciator will be lit Press the LOCAL key on the front panel to return the synthesizer to local operating mode Performing Fundamental Synthesizer Operations If You Encounter a Problem If no cursor v appears over a parameter in the display Check that the ENTRY OFF function is not enabled The ENTRY OFF function is enabled when the cursor v doesn t appear over any of the parameters in the display To return to normal entry mode press the desired function key which has a numeric parameter associated with it for example press FREQ if you want to enter frequency If the parameter you are trying to enter is not accepted by the synthesizer Ensure that you are not trying to set the parame
133. pressing the POWER LEVEL key will make output power level the active parameter etc If no parameter is currently active or the SHIFT G ENTRY OFF function has been enabled pressing the J key will have no effect If the key is pressed and held down the key will auto repeat that is the active parameter will automatically decrease rapidly in increment value steps Equivalent SCPI Commands There is no equivalent SCPI command for the J key however the various SCPI commands that send numeric parameter data include a DOWN parameter option Sending the DOWN parameter in place of the numeric parameter is effectively the same as pressing the J key For example if you want to decrease the output frequency by its current increment value send the following command OUTPUT 719 FREQ DOWN 6 9 Keys Shifted Functions 4 See Also G ENTRY OFF STEP SIZE 6 10 ADDRESS Invoking the ADDRESS function pressing the SHIFT key and then the LOCAL key displays and allows you to change the synthesizer HP IB address When SHIFT LOCAL is pressed the current HP IB address will be displayed across the display in the following format where is the current HP IB address The range for valid addresses is 00 to 30 The HP IB address is preset at the factory to 19 Pressing the PRESET key has no affect on the HP IB address The preset up down arrow increment value is 1 Equiv
134. pulation of certain data bits within the synthesizer circuitry 61 ETER NODE Allows entry of a measurement node where the internal volt ammeter will take a measurement 62 LO FREQ Displays the synthesizer internal LO phase locked loop frequency 63 OFFSET FREQ Displays the synthesizer internal Offset phase locked loop frequency 70 HOLD POWER ON OFF Holds the power loop at its current setting 71 CAL YIG OSC Recalibrates the YIG oscillator and stores the new tuning curve in EEPROM See Also HP 838711A 12A and 83711B 12B Synthesized CW Generators Service Guide 7 17 SHOW INFO Invoking the SHOW INFO show information function pressing SPCL 4 ENTER displays the software version number and instrument serial number on the synthesizer display When SPCL C is pressed the following text will be shown on the synthesizer display where is the version number of the software currently installed in the synthesizer and is the synthesizer serial number Equivalent SCPI Command There is no equivalent SCPI command for the SHOW INFO function however the IDN query returns the synthesizer model number serial number and firmware revision number See Also IDN 7 18 Error Messages Error Messages If an error condition occurs in the synthesizer it will always be reported to both the front panel and HP IB error queue
135. quires that external equipment be connected to the synthesizer as shown in Figure 6 1 Keys Shifted Functions EXT DIODE HP 83711A SYNTHESIZED SIGNAL GENERATOR SAMPLING EXTERNALLY DEVICE LEVELED 1 OUTPUT Figure 6 1 External Diode Detector Leveling Setup When external diode detector leveling is chosen power is sampled at the external sampling device either a directional coupler or power splitter by an external diode detector that is typically operating in the square law region When the diode detector is operating in the square law region it will provide a DC voltage that is proportional to the power sampled at the input to the detector This DC voltage is fed back to the synthesizer via the ALC IN connector The synthesizer then adjusts its output power level to maintain a constant power level at the input to the external diode detector Applications External leveling can be used when your application requires long cables that will cause frequency dependent losses It also enables devices such as amplifiers mixers etc to be inserted into the RF signal path so that the output of the inserted device is controlled by the synthesizer 6 17 Keys Shifted Functions EXT DIODE Advantages of Diode Detector Leveling When diode detector leveling is used power level correction is continuous External diode detector leveling has the advantage of faster settling time than power meter leveling The settling time
136. r Data with the Numeric Keypad To Modify Data with the Knob To Modify Data with the Arrow Keys To Save and Recall Synthesizer States Programming Example To Read the Contents of the Error Queue Programming Example To Set the HP IB Address Programming Example If You Encounter a Problem Data Entry Problems Programming Problems 3 Generating Signals with the Synthesizer To Generate a CW Signal Lo To Generate Millimeter Signals To Use External Diode Detector Leveling Programming Command Related Tasks To Use External Power Meter Leveling Programming Commands Related Tasks To Use the Level Correct Routine Related Tasks To Use Previously Stored Level Correct Data m m mnmmenme or CO CO CON OW WD 1 Contents 1 Related Tasks Ce a If You Encounter a Problem 2 2022 Annunciators Turned On RF Output Problems 4 Specifications and Options HP 83711A 11B Specifications Frequency RF Output Spectral Purity HP 83712A 12B Specifications Frequency Lo RF Output Spectral Purity General Front Panel Connectors Rear Panel Connectors Options Electrical Options Loe Option 1E1 Add Output Step Attenuator Option 1E5 Add High Stability Timebase Option 1E8 1 Hz Frequency Resolution Option 1E9 3 5 mm RF Output Connector Mechanical Options Lo Option 1CM Rack Mount Kit Loe Option 1CP Rack Mount and Handle
137. r indicates that an HP IB command or query has too few parameters Correct the HP IB controller program so that the HP IB command or query contains the correct number of parameters 108 Parameter not allowed 108 8 11 Error Messages Messages 105 104 108 102 101 100 110 511 This error indicates that an HP IB command or query has too many parameters Correct the HP IB controller program so that the HP IB command or query contains the correct number of parameters 105 GET not allowed 105 Correct the HP IB controller program so that the group execute trigger does not occur within a line of HP IB program code 104 Data type error 104 The parser recognized a data element different than one allowed For example numeric or string data was expected but block data was encountered 103 Invalid separator 103 A separator was expected but an illegal character was encountered For example the space is missing from the following FREQ 01GHz 102 Syntax error 102 An unrecognized command or data type was encountered 101 Invalid character 101 A syntactic element contains a character which is invalid for that type For example a header containing an ampersand would give this error 100 Command error 100 Some problem occurred while parsing an HP IB command or query Insure that your programming
138. s Messages 1532 1534 1535 1536 1537 1538 1539 discarded and no action is taken Refer to Chapter 4 of the HP S673 Compatibility Guide for more information 301 8673 command OL not emulated 15382 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command FA not emulated 1534 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command FB not emulated 1535 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command FS not emulated 1536 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulated The command is thus discarded and no action is taken Refer to Chapter 4 of the HP 8673 Compatibility Guide for more information 301 8673 command DF not emulated 1537 The above command is recognized by the synthesizer in HP 8673 emulation mode but it is not emulate
139. s These two queues are viewed and managed separately The MSG key is used to view the contents of the front panel error queue The HP IB query SYSTem ERRor is used to view the contents of the HP IB error queue If there are any error messages in the front panel error queue the front panel MSG annunciator will be lit Pressing the MSG key repeatedly until the MSG annunciator turns off will empty the front panel error queue The MSG key has no affect on the HP IB error queue Emptying the HP IB error queue has no affect on the front panel queue therefore it will not affect the MSG annunciator There are some special error types that are called permanent errors Permanent errors remain in the error queues until the error condition is cleared Pressing the MSG key will empty the front panel error queue but the permanent errors will be re reported if the error conditions still exist In the HP IB error queue the permanent errors are re reported after the message 0 No error is read using the SYSTem ERRor query or after the CLS command is executed 8 2 Error Messages List The list of error messages in this chapter lists all of the error messages associated with synthesizer operation An example of the error format found in the list of error messages is as follows 2003 222 Data out of range CW FREQ 2003 Select a CW frequency that is within range of the installed options If other m
140. s Shifted Functions This chapter contains detailed information on the various keys and shifted functions found on the synthesizer front panel Key names are printed on the keycap and represent the primary function of the key The shifted function names appear above certain keys on the synthesizer front panel Shifted functions are always accessed by pressing the SHIFT key and then the key below the shifted function name If no text appears above a given key that key has no shifted function associated with it 6 2 The key moves the cursor v that appears over one of the digits in the display to the right one digit each time it is pressed The digit that is currently under the cursor will be increased or decreased in steps of one as the knob is rotated Clockwise rotation of the knob increases the digit under the cursor and counterclockwise rotation decreases it If pressing the key moves the cursor too far to the right pressing the key will move the cursor back to the left NOTE The digit under the cursor is affected only by the knob not the ff and E keys If SHIFT ENTRY OFF has been enabled the cursor will disappear from the display and rotating the knob will have no affect on the parameter Note that the cursor indicates that particular parameter is active For example if the cursor appears over any digit in the frequency display the frequency parameter is the active parameter If an arro
141. s invalid for the AM scan linear 2 tables If you need to use this frequency range and scan AM modulation see the explanation for error number 4000 800 Options not saved PG switch is not 0 800 The instrument option bit fields were not saved to EEPROM Open up the synthesizer switch the PG switch to 0 and try setting the option bit fields again 801 Serial num not saved PG switch is not 0 801 The instrument serial number was not saved to EEPROM Open up the synthesizer switch the PG switch to 0 and try setting the serial number again 8 22 802 803 900 901 940 944 1101 1102 1103 Error Messages Messages 802 Assembly Revs not saved PG switch is not 0 802 The protection switch on the CPU board is in an incorrect position to change EEPROM data 803 EEPROM not cleared PG switch is not 0 803 The protection switch on the CPU board is in an incorrect position to clear EEPROM data 900 PRI increased to fit pulse width 900 The current pulse width is too large for the current PRI The PRI is increased to allow for the pulse width This is a permanent error 901 Delay and width decreased to fit max PRI 901 The current pulse width plus the current pulse delay is too large because they are greater than the maximum PRI The delay and or the width were reduced to fit This is a permanent error 940 Oven is cold 940 The high
142. sks e To Use Previously Stored Level Correct Data 3 19 To Use Previously Stored Level Correct Data When the level correct routine is run the synthesizer creates a table of correction values for each frequency point in the table Up to four level correction tables can be stored in the synthesizer memory If the current signal path at the synthesizer output the external signal path is identical to the external signal path on which a level correct routine had been previously run the level correction table can be recalled from memory and be used at a later time 1 Verify that the current external signal path is correct for the level correct table you want to recall from memory and use The current external signal path must be identical to the external signal path that was calibrated and stored in the level correct table that you wish to recall If the current external signal path is different the data can cause inaccurate output power levels at the output of the external signal path 2 Press the SHIFT key and then the EXT METER RCL CR key The display will show amp correction register number recalled is the last level where 3 Enter the level correction register number of the register that contains the level correct data you want to use For example use the following procedure to choose level correction register number 2 a Type 2 on the synthesizer numeric keypad b Terminate the level corr
143. sor v will always appear over one of the digits in the active parameter display If the cursor is absent from the display the entry hold function is active and the desired function key must be pressed to re enable the numeric keypad The knob and f QD keys can also be used to change the currently active parameter See Also G ENTER ENTRY OFF Knob To Enter Data with the Numeric Keypad in Chapter 2 6 40 POWER LEVEL The POWER LEVEL key allows you to set the output power level of the synthesizer Power level is displayed in the right hand position of the display The allowable range for power level entries is 15 dBm to 30 dBm for standard configuration instruments and 120 dBm to 30 dBm when Option 1E1 is installed 100 dBm to 30 dBm on HP 83711A 12A NOTE The actual maximum internally leveled output power for your instrument at a given frequency can be found by increasing the synthesizer output power until the UNLVL annunciator lights Power level resolution is 0 01 dB The preset power level value is 0 dBm for standard configuration instruments For instruments with Option 1E1 installed the preset power level value is 110 00 dBm 90 0 dBm on HP 838711A 12A The preset up down arrow increment value is 1 00 dBm The minimum increment value is 0 01 dBm Three options are available for leveling of the output power These are internal leveling INT LEVEL external d
144. sted in accordance with IEC Publication 1010 Safety Requirements for Electronic Measuring Apparatus and has been supplied in a safe condition The instruction documentation contains information and warnings which must be followed by the user to ensure safe operation and to maintain the product in a safe condition If this product is not used as specified the protection provided by the equipment could be impaired This product must be used in a normal condition in which all means for protection are intact only WARNING 2 2 To Enter Data with the Numeric Keypad The synthesizer numeric keypad and units terminator keys provide one way to enter function parameters 1 Select the desired function key or shifted function key The function must have a numeric value parameter associated with it in order to enter a new value with the numeric keypad FREQ and POWER LEVEL are examples of functions with parameters For example to select power level so that its parameter is active press the POWER LEVEL key Notice that a cursor v appears over one of the digits in the power level display The cursor will always appear over one of the digits of the active parameter NOTE Two cursors will appear w when the cursor is positioned off the display 2 Enter the desired value of the parameter by pressing the numeric keys and if necessary the negative and decimal keys Notice that as you press t
145. t 90 dBm 0 7 dB power lt 90 dBm 4 11 Specifications and Options HP 83712A 12B Specifications The use of Type N RF connectors above 18 0 GHz degrades specification typically by 0 2 dB Level Switching Time lt 17 ms without step attenuator range change Attenuator range changes occur at 1 dBm 11 dBm 21 dBm etc Output SWR lt 2 0 1 nominal 84 5 85 0 Output Level dBm 10 5 Me Hit 9 5 4 8 12 Carrier Frequency GHz Figure 4 8 Typical Output Level Accuracy and Flatness at 10 and 85 dBm 4 12 Specifications and Options HP 83712A 12B Specifications Spectral Purity SSB Phase Noise dBe Hz Table 4 3 Offsets HP 83712A only Carrier Freq 100Hz 1kHz 10 kHz 100 kHz 500 MHz 70 86 103 119 2 GHz 66 74 g1 107 10 GHz 69 75 79 101 18 GHz 69 70 23 9g Table 4 4 Offsets HP 83712B only Carrier Freq 100 Hz 1 kHz 10 kHz 100 kHz 500 MHz to lt 1 GHz 78 92 103 115 1 GHz to lt 2 GHz 73 83 92 107 2 GHz to lt 5 GHz 70 78 83 100 5 GHz to lt 10 GHz 69 78 82 100 10 GHz to 20 GHz 65 23 76 100 Phase noise decreases 6 dB octave below 500 MHz and reaches a floor of 140 dBc He 4 13 Specifications and Options HP 83712A 12B Specifications 60 if 80 F 20 GHz 1 100 dBc Hz 120 140 160 100 1
146. t The start frequency upper limit is equal to the stop frequency minus the minimum frequency resolution at that frequency For example the preset value for start frequency increment value is 100 MHz The stop frequency lower limit is equal to the start frequency plus the minimum frequency resolution at that frequency The stop frequency upper limit is 20 GHz The preset value for stop frequency increment value is 100 MHz The allowable range for number of points is 2 to 401 The preset increment value is 1 6 33 Keys Shifted Functions LVLCR Equivalent SCPI Command There is no equivalent SCPI command for the LVL CR function however the commands under the Level Correction Commands tab in Chapter 1 of the HP 83711A 12A and HP amp 3711B 12B Synthesized CW Generators Programming Guide explain how to load data into level correct tables select tables turn level correction on etc See Also LVL CR ON OFF PWR MTR ADDRS RCL CR SAVE CR To Use the Level Correct Routine in Chapter 3 6 34 LVL CR ON OFF The LVL CR ON OFF level correct on off function SHIFT POWER LEVEL toggles the level correct function on and off When the level correct function is on the LVL COR annunciator is lit and the data in the current level correction table is used to change the power level of the synthesizer The current level correction table is either the last level correction that was run or the last
147. t power so that the power meter display indicates the power desired at the sampling point For example assume that you are using a directional coupler that has a coupling factor of 22 dB and you want 5 dBm at the output of the coupler In this case you must set the power at the sampling point the coupled output to 17 dBm Perform the following procedure to set the power at the sampling point to 17 dBm a Press the POWER LEVEL key b Rotate the knob on the synthesizer until the power level displayed on the power meter is 17 dBm Disregard the power level shown on the synthesizer display Select range hold on the power meter Press the EXT METER key on the synthesizer When the EXT METER key is pressed the text appears in the display where is the last range hold meter value that was entered Enter the power shown on the power meter display into the synthesizer using the numeric keypad The value entered into the synthesizer is called the range hold meter value For example if the power meter currently reads 17 dBm perform the following procedure to enter 17 dBm into the synthesizer a Type 17 on the synthesizer numeric keypad b Terminate the range hold meter value entry by pressing the GHz dBm key 3 12 Generating Signals with the Synthesizer To Use External Power Meter Leveling When the range hold meter value is terminated the synthesizer enters the external power me
148. t state and is the active parameter the frequency display shows the following where the cursor appears over the third 0 to the right of the decimal When you turn the knob in this case the output frequency changes in 1 MHz steps 3 If you wish to move the position of the cursor one position to the right press the key Pressing once moves the position of the cursor to the right one digit in order to decrease the knob resolution by a factor of ten 4 If you wish to move the position of the cursor one position to the left press the key CE moves the position of the cursor to the left one digit in order to increase the knob resolution by a factor of ten 2 4 Performing Fundamental Synthesizer Operations To Modify Data with the Knob 5 Continue to press the G or E key until the cursor is positioned over the desired digit For example suppose that frequency is the current active parameter and you wish to change the cursor position from 1 MHz to 1 GHz The steps that follow illustrate how to accomplish this a Press the PRESET key When the instrument has been set to the preset state the frequency display indicates the following where the cursor appears over the third 0 to the right of the decimal b Press the E key three times This moves the cursor from the position corresponding to MHz to the position corresponding to GHz The cursor is now over the 3 c Rotate
149. tains information pertaining to safety and the warranty The Declaration of Conformity is located at the end of this chapter 9 2 WARNING CAUTION WARNING Safety Symbols Instruction documentation symbol The product is marked with this symbol when it is necessary for the user to refer to the instruction in the documentation Indicates hazardous voltages Indicates earth ground terminal H gt D The WARNING sign denotes a hazard It calls attention to a procedure which if not correctly performed or adhered to could result in personal injury or loss of life Do not proceed beyond a WARNING note until the indicated conditions are fully understood and met The CAUTION sign denotes a hazard It calls attention to a procedure that if not correctly performed or adhered to could result in damage to or destruction of part of the product Do not proceed beyond a CAUTION note until the indicated conditions are fully understood and met No operator serviceable parts inside Refer servicing to qualified personnel To prevent electrical shock do not remove covers 9 3 Legal and Regulatory Information Safety Symbols Miscellaneous Symbols CE The CE symbol is a registered trademark of the European Community if accompanied by a year it is when the design was proven ISM 1 A This is a symbol of an Industrial Scientific and Medical Group 1 Class A product CSA The CSA symbol is a registered
150. ter greater than or less than its limit Refer to the specification table in this manual for the parameter limits o Check that the MSG LED annunciator is off If the synthesizer MSG annunciator is on there is a problem with the synthesizer To determine the error and turn off the MSG annunciator refer to To Read the Contents of the Error Queue in this chapter and the listing of error messages in Chapter 8 If the synthesizer does not display output the carrier frequency entered o Check that the frequency multiplier value entered is the expected value When a multiplier value other than one is entered the frequency resolution of the signal before multiplication must be obeyed For example for a desired frequency of 40 GHz using a multiplier value of three the synthesizer would have to output a frequency of 13 333333333 GHz Since frequency resolution at that frequency is 1 kHz the closest the synthesizer can set the frequency is 13 333333000 GHz This yields 39 999999000 GHz after multiplication not 40 GHz Performing Fundamental Synthesizer Operations Programming Problems If the synthesizer does not respond to programming commands o Refer to the procedure To Set the HP IB Address in this chapter to check and if necessary change the HP IB address 2 15 Performing Fundamental Synthesizer Operations Generating Signals with the Synthesizer Generating Signals with the Synthesizer
151. ter leveling mode Power is then held at a constant level at the sampling point regardless of gain changes in the signal path between the synthesizer RF OUTPUT connector and the sampling point Programming Commands The following commands are related to external power meter leveling POW ALC PMET reading Reads the initial power meter reading into the synthesizer The initial power meter reading is defined by the reading parameter POW ALC SOUR PMET Enables external power meter leveling Related Tasks e To Use External Diode Detector Leveling 3 13 To Use the Level Correct Routine When activated the level correct function adjusts the synthesizer output power to compensate for losses or gains to provide constant leveled power at output of the external signal path When the level correct routine is used the synthesizer performs a calibration process that corrects for external losses or power variations in an external signal path When the level correct routine is run a power meter that is under control of the synthesizer will measure power variations at the output of the external signal path over a user defined frequency range The synthesizer then reads back the power level data from the power meter and creates a table of correction values for each frequency point the level correction table The level correction table resides in non volatile memory and up to four level correction tables can be stored
152. ter power input is out of range 670 The ALC input is not a valid level The power meter range may be wrong This is a permanent error 700 Hardware driver Frequency limit 700 The frequency entered cannot be generated by the synthesizer with the set of options available 701 Lo synthesizer set error 701 The LO synthesizer cannot be set to the level requested Enter a new frequency 702 Offset synthesizer set error 702 The offset synthesizer cannot be set to the level requested Enter a new frequency 704 YTO driver set error 704 The YIG oscillator cannot be set to the level requested Enter a new frequency 706 Low pass filter set error 706 The low pass filter cannot be set to the requested setting Enter a new frequency 709 Hardware driver Frequency limit 709 The frequency entered cannot be generated by the Frequency Extension module 710 LO synthesizer went out of lock 710 The LO synthesizer went out of lock This may be due to hookup or disconnection of an external time base Enter a different RF frequency and then set the frequency back to the desired value to re lock This is a permanent error 711 Offset synthesizer went out of lock 711 The offset synthesizer board was unable to attain lock Enter a different RF frequency and then set the frequency back to the desired value to re lock This is a permanent error 7
153. tes counterclockwise knob rotation 5 13 Front Rear Panel Knob See Also gt ENTRY OFF SYSTem KEY 5 14 WARNING CAUTION POWER Switch The POWER switch LINE on HP 83711A B turns power to the synthesizer to either on or standby The POWER switch LINE on HP 83711A B is located at the bottom left corner of the front panel and is a rocker type switch Pressing the symbol turns the synthesizer on and pressing the symbol turns it to standby When set to standby most of the synthesizer circuitry is powered off however power to the internal timebase is not disconnected Before turning the synthesizer on make sure that it is grounded through the protective conductor of the power cable to a mains power receptacle provided with protective earth contact Any interruption of the protective grounding conductor inside or outside of the synthesizer or disconnection of the protective earth terminal can result in personal injury Before turning the synthesizer on set the line voltage selector to the voltage of the power source Failure to do this can cause instrument damage when the power cable is plugged in For information on setting the line voltage selector refer to To Install the Synthesizer in Chapter 1 of this manual See Also To Install the Synthesizer Power Cables 5 15 Power Cables The line power cable is supplied in one of several configurations
154. the HP IB command DIAG IBUS DIR or DIAG IBUS DIR so that its parameters are within their appropriate ranges See the service manual for more details on this HP IB only feature 224 Illegal parameter value EMC 2045 This command requires a 1 or 0 as an argument 222 Data out of range SYST KEY 2048 Select a key code available on the synthesizer s front panel 161 Invalid block data SYST SET bad size 2051 The learn string sent to the synthesizer is corrupt Gncorrect number of bytes Check that the HP IB controller is sending the string correctly In addition insure that the controller loaded the learn string correctly in the first place Note The LRN query always returns the same length string regardless of the state of the synthesizer but the LRN response can change if the firmware version changes 222 Data out of range CAL ALC CURV 2054 Correct the HP IB command CAL ALC CURV so that its parameters are within the following ranges lst parameter 0 0 to 4 0 2nd parameter 2 0 to 2 0 3rd 6th parameter 1 0 to 1 0 7th parameter 0 0 to 25 0 222 Data out of range HPIB ADDRESS 2057 Select an HP IB address for the synthesizer from 0 to 30 222 Data out of range SAVE 2060 Select a save state register number from 0 to 9 222 Data out of range RECALL 2066 Select a recall state register number from 0 to 9 222 Data out of range LO FREQ 207
155. the external reference input specifications 3 23 Generating Signals with the Synthesizer Specifications and Options Specifications and Options This chapter contains listings of the synthesizer performance specifications and the mechanical electrical warranty and documentation options that are available Specifications for each instrument appear under the instrument number further on in this chapter The general specifications given here apply equally to the HP 88711A 12A and HP 83711B 12B 4 2 HP 83711A 11B Specifications Specifications describe the instrument s warranted performance over the 0 to 55 temperature range unless otherwise noted Supplemental characteristics indicated by italics are intended to provide information useful in estimating instrument capability in your application by describing typical but not warranted performance Frequency Range 1 0 to 20 0 GHz Resolution 1 kHz 1 Hz with Option 1E8 Stability with high stability timebase Option 1E5 Aging Rate lt 1 5x10 day after 24 hour warm up Temperature Effects lt 1x 10 over 0 to 55 C nominally lt 1 4x 10 C Line Voltage Effects lt 5x 101 for 10 change in line voltage Stability without high stability timebase Aging Rate lt 1 0x 10 day after 72 hours at 25 C 10 C Temperature Effects lt 5x 10 over 0 to 55 C referenced to 25 C Stability with external 10 MHz reference S
156. the knob slowly so that you can see the frequency change in 1 GHz steps NOTE The Knob and ff QZ keys operate independently of each other The C QE keys increase or decrease parameters in defined steps 2 5 To Modify Data with the Arrow Keys The synthesizer f and J arrow keys increase or decrease the value of the currently active parameter by an amount set with the STEP SIZE key The amount set with the STEP SIZE key is referred to as the increment value 1 Select the function key of the parameter to be modified When the function key is selected a cursor v appears over one of the digits of the selected parameter For example to select the frequency function press the FREQ key The frequency parameter is selected when the cursor appears over one of the digits of the frequency display 2 Press the f key to increase the parameter by the current increment value or press the J key to decrease the parameter by the current increment value For example when frequency is in its preset state the frequency display shows the following where the cursor appears over the third 0 to the right of the decimal The preset frequency increment value is 100 MHz When you press the ff key the value of frequency increases to 3 100000000 GHz 3 If you wish to change the increment value you can do so using the STEP SIZE key The STEP SIZE key allows you to change the increment value
157. thesizer would increase power at the input of the cable to produce a constant power level at the output of the cable External power meter leveling requires that external equipment be connected to the synthesizer as shown in Figure 6 2 HP 83711A SYNTHESIZED SIGNAL GENERATOR SAMPLING RE DEVICE OUTPUT OUT 1 EXTERNALLY LEVELED OUTPUT POWER METER POWER SENSOR RECORDER OUTPUT Figure 6 2 External Power Meter Leveling Setup When external power meter leveling is chosen power is sampled at the external sampling device either a directional coupler or power splitter by the external power sensor An automatic level control voltage is then generated by the external power meter and fed back to the synthesizer via the ALC IN connector The synthesizer then adjusts its output power level to maintain a constant power level at the input of the external power sensor 6 21 Power Meter Power Sensor Keys Shifted Functions EXT METER Applications External leveling can be used when your application requires long cables that will cause frequency dependent losses It also enables devices such as amplifiers mixers etc to be inserted into the RF signal path so that the output of the inserted device is controlled by the synthesizer External Equipment Limitations The power meter must be capable of producing a 0 V to 1 V output voltage linearly proportional to power over each decade of range The recorder
158. trademark of the Canadian Standards Association 9 4 CAUTION CAUTION Safety Considerations This product and related documentation must be reviewed for familiarization with safety markings and instructions before operation This product is a Safety Class I system provided with a protective earth terminal Before Applying Power Verify that the product is set to match the available line voltage and the correct fuses are installed This product is designed for use in Installation Category II and Pollution Degree 2 per IEC 1010 and 664 respectively VENTILATION REQUIREMENTS When installing the product in a cabinet the convection into and out of the product must not be restricted The ambient temperature outside the cabinet must be less than the maximum operating temperature of the product by 4 C for every 100 watts dissipated in the cabinet If the total power dissipated in the cabinet is greater than 800 watts then forced convection must be used Safety Earth Ground An uninterruptable safety earth ground must be provided from the main power source to the product input wiring terminals through the power cable or supplied power cable set 9 5 WARNING Legal and Regulatory Information Safety Considerations This is a Safety Class I product provided with a protective earthing ground incorporated in the power cord The mains plug shall only be inserted in a socket outlet provided wit
159. uote The terminating quote must be the same as the leading quote of the 8 9 Error Messages Messages 150 148 144 141 140 138 134 131 130 128 string A string can also be valid if invalid characters are contained in it 150 String data error 150 The string data was too long to be buffered in the synthesizer string data area 148 Character data not allowed 148 Correct the HP IB controller program so that the data included with the HP IB command is not character data 144 Character data too long 144 The character data element contains more than 12 characters 141 Invalid character data 141 Either the character data element contains an invalid character or the particular element is not valid for the command or query 140 Character data error 140 The character data contains a syntax error 138 Suffix not allowed 138 Correct the HP IB controller program so that the decimal data included with the HP IB command does not use a suffix Use exponential notation instead 134 Suffix too long 134 The suffix contained more than 12 characters 131 Invalid suffix 131 Correct the HP IB controller program so that the decimal data included with the HP IB command contains a valid suffix for that command or query 130 Suffix error 130 The suffi
160. ur due to an instrument fault or because the instrument is set to level for an RF output level that is beyond its capability Calibrated output level is only guaranteed when the UNLVL annunciator is not lit When the synthesizer UNLVL annunciator lights the knob arrow keys or the numeric keypad can still be used to change displayed power up to the maximum value However the actual output power will not increase Only the displayed value changes The internal ALC circuit maintains a constant RF power level over frequency at the RF OUTPUT connector The ALC circuit is a feedback control system where output power is measured and compared to the desired power level When output power does not equal the desired power level the ALC changes the output until the actual and desired levels are equal The actual maximum leveled power available is dependent upon the frequency and varies across the range of the synthesizer The allowable range for power level entries using the POWER LEVEL key is 15 dBm to 30 dBm for standard configuration instruments and 120 dBm 100 dBm on HP 83711A 12A to 30 dBm if Option 1E1 is installed 6 27 Keys Shifted Functions INT LEVEL NOTE The actual maximum internally leveled output power for your instrument at a given frequency can be found by increasing the synthesizer output power until the UNLVL annunciator lights When the synthesizer is set to the preset state internal leveling is s
161. ure environment the display can be blanked so that the synthesizer parameters and status cannot be viewed For more information refer to the Clear Display entry in Chapter 7 of this manual See Also S Annunciators CLEAR DISPLAY DISPlay WINDow STATe Knob 5 12 Knob The knob is used to increase or decrease parameter values A cursor v over a digit in the display indicates that digit will be increased or decreased in steps of one as the knob is rotated Clockwise rotation of the knob increases the display digit under the cursor and counterclockwise rotation decreases it Pressing the key moves the display cursor to the left and pressing the S key moves the cursor to the right As the knob is rotated the display will carry over to the adjacent digit For example if the display reads 9 000000000 GHz with the cursor over the 9 digit clockwise rotation of the knob will cause the displayed frequency to change to 10 000000000 GHz The cursor will remain over the first digit before the decimal point the 0 in 10 If SHIFT ENTRY OFF has been enabled the cursor will disappear from the display and rotating the knob will have no affect on the synthesizer parameters Equivalent SCPI Command There is no equivalent SCPI command for knob rotation however the SYST KEY 61 command simulates clockwise knob rotation and the SYST KEY 62 command simula
162. use the PG switch on the microprocessor board was not closed Close the PG switch and do the calibration again 786 Cal Data verification after EEPROM write 786 8 21 Error Messages Messages 787 790 793 794 795 796 800 The calibration data was not written correctly after the calibration Close the PG switch and do the calibration again 787 FM cal and Pinchoff cal not initialized 787 The YIG calibration has not been done for both YIG bands or else the pinchoff cal values have not been entered yet 790 Scan mod 0 01 1 GHz gain tables bad 790 Checksum was invalid for the AM gain tables If you need to use this frequency range and scan AM modulation see the explanation for error number 4000 793 Scan AM cal not valid defaults used 793 Scan AM level may be in error due to invalid calibration data If you need to use scan AM modulation see the explanation for error number 4000 794 Scan mod 1 20 GHz gain tables bad 794 Checksum was invalid for the AM scan gain tables If you need to use this frequency range and scan AM modulation see the explanation for error number 4000 795 Scan mod 1 20 GHz linear 1 tables bad 795 Checksum was invalid for the AM scan linear 1 tables If you need to use this frequency range and scan AM modulation see the explanation for error number 4000 796 Scan mod 1 20 GHz linear 2 tables bad 796 Checksum wa
163. vel correct data 749 This message is a warning that the current CW frequency is not contained within the frequencies in the active level correction table Therefore the correction applied to the output will be 0 dB This is a permanent error 751 Parameters cause points to be too large 751 The level correction parameters cannot define a new table because they create too many level correction points 752 753 754 755 756 757 758 759 760 Error Messages Messages 222 Data out of range Data set to minimum 752 Loss data must be in the range of 40 to 40 dB 222 Data out of range Data set to maximum 753 Loss data must be in the range of 40 to 40 dB 754 Total points reduced from that requested 754 The number of points requested for an automatic level correction has been reduced to avoid duplicate frequencies 755 Invalid data in active table not saved 755 This error indicates that a level correction table save failed Try selecting the same level correction table again If this error message persists you will have to recreate the table 756 Factory level corr 1 20 GHz 0 dB table 756 Factory frequency level correction data for 1 20 GHz band thru path is not valid If you need to use this frequency range and you work with output levels that don t use the step attenuator see the explanation for error number 4000 757 Bad
164. w key is pressed that moves the cursor to a position that is off the display another cursor will appear next to the original cursor to indicate that the actual cursor position is off the display For example if a frequency multiplier of six is entered into the synthesizer the maximum frequency entry that can be made is 120 GHz 20 GHzx6 The display however only has room to display two digits to the left of the decimal point If you were to attempt to position the cursor three digits to the left of the decimal point the double cursor would appear indicating that the actual cursor position is off the display 6 3 Keys Shifted Functions gt Equivalent SCPI Command There is no equivalent SCPI command for the key however sending the SYST KEY 45 command is effectively the same as pressing the G key See Also B ENTRY OFF Knob SYSTem KEY 6 4 The lt lt key moves the cursor v that appears over one of the digits in the display to the left one digit each time it is pressed The digit that is currently under the cursor will be increased or decreased in steps of one as the knob is rotated Clockwise rotation of the knob increases the digit under the cursor and counterclockwise rotation decreases it If pressing the key moves the cursor too far to the left pressing the key will move the cursor back to the right NOTE The digit under the cursor is affected only by the knob not
165. wer meter address by pressing the Hz ENTER key 3 Choose the programming language that the synthesizer will use to communicate with the power meter over the HP IB For example use the following procedure to choose HP 437B compatible programming language a Press the key b Type on the synthesizer numeric keypad c Press the ENTER key 3 15 Generating Signals with the Synthesizer To Use the Level Correct Routine 4 5 d Press the f or key until the display reads Press the POWER LEVEL Key Adjust the power level to a level near the center of the power sensor range Press the SHIFT key and then the INT LEVEL LVL CR key When SHIFT INT LEVEL LVL CR is pressed the words appear in the left most display where is the current level correct start frequency Enter the desired level correct start frequency If the start frequency shown in the display is the desired start frequency continue with step 8 For example use the following procedure to set the level correct start frequency to 3 5 GHz a Type 5 on the synthesizer numeric keypad b Terminate the level correct start frequency by pressing the GHz key Note that the level correct start frequency remains on the display after it is terminated so that it can be modified using the knob or Gf W keys if desired Press the Hz ENTER key to begin level correct stop frequency entry When the
166. whether it has been selected via the numeric keypad or by using the knob or fj keys When the special function has been turned off the word OFF will be shown in the right side of the display and the SPCL annunciator will turn off if no other special functions are selected Equivalent SCPI Command There is no equivalent SCPI command for the SPCL OFF key however sending the SYST KEY 50 command is effectively the same as pressing the SPCL OFF key 6 54 Keys Shifted Functions SPCL OFF kHz See Also ATTEN HOLD ON OFF CLEAR DISPLAY SPCL ON SYSTem KEY 6 55 SPCL ON MHz The SPCL ON key actually the secondary function of the MHz key is used to turn on off type special functions on The MHz SPCL ON key is used to turn on off type special functions on when they are displayed in the display The on off type special functions are ATTEN HOLD ON OFF and CLEAR DISPLAY The SPCL ON key will turn the special function on whether it has been selected via the numeric keypad or by using the knob or fj keys When the special function has been turned on the word ON will be shown in the right side of the display and the SPCL annunciator will be lit Equivalent SCPI Command There is no equivalent SCPI command for the SPCL ON key however sending the SYST KEY 42 command is effectively the same as pressing the SPCL ON key See Also ATTEN HOLD ON OFF CLEAR DISPLA
167. will show the following where is ON if the clear display function is currently on and OFF if the clear display function is currently off Once the clear display function has been enabled pressing SPCL ON blanks the display and LED annunciators and i is shown across the display The display state is stored in the instrument state registers along with other instrument state data so if sensitive instrument settings are stored to a register the settings are not revealed when the register is recalled When the synthesizer is set to the preset state the display is restored if it had been previously cleared NOTE Cycling the POWER switch off and then on will not restore the display 7 6 Special Functions CLEAR DISPLAY Equivalent SCPI Command DISP STAT ON OFF turns the display on or off See Also Display DISPlay WINDow STATe 7 7 ERASE MEMORY Invoking the ERASE MEMORY function pressing SPCL 4 Hz ENTER clears all application specific information from synthesizer memory When SPCL 4 Hz ENTER is pressed all user settings are set to the preset state save recall registers are erased and level correction tables are cleared The ERASE MEMORY function does not clear factory calibration data stored in the EEPROM When the ERASE MEMORY function is invoked the display will momentarily display the following Application The ERASE MEMORY fu
168. x contains a syntax error 128 Numeric data not allowed 128 Correct the HP IB controller program so that the data included with the HP IB command is not numeric data 124 123 121 120 114 113 112 111 110 109 108 Error Messages Messages 124 Too many digits 124 The mantissa of a decimal numeric data element contained more than 255 digits excluding leading zeros 123 Exponent too large 123 The magnitude of the exponent was larger than 32000 121 Invalid character in number 121 Correct the HP IB controller program so that the decimal data or non decimal numeric included with the HP IB command contains the correct numeric characters 120 Numeric data error 120 An invalid numeric or non decimal numeric was parsed but it was syntactically invalid 114 Header suffix out of range 114 Indicates that a header suffix was too large 118 Undefined header 113 The header is syntactically correct but it is undefined for the synthesizer 112 Program mnemonic too long 112 The header contains more than 12 characters 111 Header separator error 111 An illegal header separator was encountered while parsing the header 110 Command header error 110 An error was detected in the header 109 Missing parameter 109 This erro
169. xternal equipment be connected to the synthesizer NOTE Before selecting EXT METER you should adjust the power level using internal leveling so that the step attenuator is set to the correct setting 6 23 Keys Shifted Functions EXT METER Equivalent SCPI Commands NOTE The following is only the command that selects external power meter leveling External power meter leveling however is a multistep process that invalves issuing several commands POW ALC PMET pmeter sets the power meter range hold value as defined by the pmeter parameter POW ALC SOUR PMET sets the alc source to power meter See Also EXT DIODE INT LEVEL SOURce 1 POWer ALC PMETer SOURce 1 POWer ALC SOURce To Use External Power Meter Leveling 6 24 FREQ The FREQ frequency key allows you to set the output frequency of the synthesizer Frequency is displayed in the left portion of the display The preset value is 3 GHz The valid output frequency range differs depending on the synthesizer model HP 83711A 11B 1 0 GHz to 20 0 GHz HP 83712A 12B 0 01 GHz to 20 0 GHz If a frequency entry is made that is outside the allowable range an error message will be generated and the actual frequency will be set to either its upper or lower limit whichever is closest to the input frequency Standard frequency resolution is 1 kHz over the range of 0 01 GHz to 20 GHz NOTE When Option 1

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