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1. 000001 000000 000000 000002 000000 000000 000004 000000 000000 000010 000000 000000 000020 000000 000000 000040 000000 000000 000100 000000 000000 000200 000000 000000 000400 000000 000000 000000 000001 000000 000000 000002 000000 000000 000004 000000 000000 000010 000000 000000 000020 000000 000000 000040 000000 000000 000100 000000 000000 000200 000000 000000 000400 000000 000000 000000 000001 000000 000000 000002 000000 000000 000004 000000 000000 000020 000000 000000 000040 000000 000000 000100 000000 000000 000200 000000 000000 000400 001000 000000 000000 FM M deviation out of range FM OM step size out of range AM depth out of range AM step size out of range IEEE bad command syntax IEEE bad argument value MEC PROM ID code invalid or MEC PROM checksum error IEEE invalid edit or step Stored cal comp data has invalid data point Frequency out of range CALCOMP switch not set to 1 on Frequency step size out of range Cal comp procedure incomplete data cannot be stored Invalid cal comp command Invalid memory location Memory location data invalid Invalid special function code Cal comp data range error too much correction Amplitude out of range Amplitude unit conversion out of range Units conversion not allowed with voltage reference Amplitude step size out of range Amplitude step units conversion not allowed Amplitude step with mixed units not allowed Cal comp out of range ad
2. A 0 1 to 15 0 1 to 14 999 999 B 15 to 32 15 to 31 999 999 Cc 32 to 64 32 to 63 999 999 D 64 to 128 64 to 127 999 999 E 128 to 256 128 to 255 999 999 F 256 to 512 256 to 511 999 999 G 512 to 1056 512 to 1055 999 999 H 1056 to 2112 1056 to 2112 Resolution 1 Hz Display Resolution 10 digits Stability Same as Internal Reference Oscillator 10 MHz INTERNAL REFERENCE OSCILLATOR Type Temperature Compensated Crystal Oscillator TCXO Temperature Stability Less than 1 ppm p p over the range 0 to 50 C Typical Aging Rate Less than 1 ppm yr Reference Output 10 MHz gt 0 dBm for 50Q load available at the rear panel REF OUT connector PROVISION FOR EXTERNAL REFERENCE The rear panel REF IN connector accepts an external source of 10 MHz 10 ppm sine wave 0 2 to 2 0V rms for a 50Q load One alternate external reference frequency setting of 1 2 or 5 MHz is available at a time through Special Function 761 or a remote command The default alternate reference frequency is 5 MHz See the Service Manual for setting internal DIP switches for use with a 1 or 2 MHz external reference AMPLITUDE Range 16 to 140 dBm for RF output frequency lt 1056 MHz 13 to 140 dBm for RF output frequency gt 1056 MHz Resolution 0 1 dB 0 1 or 1 nV in volts Annunciators for dB dBm V mV pV dBf dBuV dBmV and EMF Display Resolution 3 1 2 digits Accuracy 23 to 5 C FREQUENCY
3. 0 00 000 5A 21 SB 1 Remote Command Summary 00 cece eee e eens cette eecenen snes 5B 2 5B 2 Units That Can Be Used With Remote Commands 0 0c00c0ee 5B 7 5B 3 Remote Commands s iserrorciai res hand ebeanied Liege kites iweb a ea 5B 8 5D 1 6060 Compatibility Language Codes and Special Functions 5D 3 5D 2 6070 Compatibility Language Codes and Special Functions 5D 5 5D 3 6060 and 6070 Compatibility Language Commands 0 cee ee 5D 7 5D 3A Commands not in 6060 or 6070 Compatibility Language 0 5D 10 5D 4 6060 and 6070 Compatibility Language Units 0 ccc secu eee eee ee 5D 11 5D 5 IEEE 488 Interface Capibilities HP8642 Language 0 00000e 5D 11 5D 6 6080 to HP8642 Error Code Mapping 00 c cece ccseec ene eneeneees 5D 14 5D 7 HP8642 Commands That Are Not Emulated 0 0 cc ccce cece ee ee 5D 15 5D 8 HP8642 RF Output Frequency Commands That Are Not Emulated 5D 15 5D 9 Frequency Sweep Commands That Are Not Emulated 00 5D 16 5D 10 Amplitude Sweep Commands That Are Not Emulated 00 5D 18 5D 11 FM M Commands That Are Not Emulated ccsccecece eee ees 5D 18 5D 12 HP8642 Special Functions Emulated 0 cece eee cee eeceeeenes 5D 20 vii viii List of Illustrations FIGURES TITLE PAGE 2 1 Line Power
4. OPC Description Programs bit 0 OPC for Operation Complete in the Event Status Register to 1 when all pending device operations are complete The Signal Generator considers an operation complete according to the following rules The operation is complete when the command is processed and output has settled For those commands that do not change the output the operation is com plete when the command is processed Single sweep is complete when the sweep is complete The operation is not complete when sweep is turned off before the sweep completes Auto and manual sweep command are complete when the starting fre quency amplitude has been programmed and the output has settled Automatic calibration compensation procedures are complete when the procedure is complete The operation is not complete when the procedure is aborted Other calibration compensation procedures are complete when the first step has been programmed and the output has settled Parameter None OPC Description Returns a 1 after all pending operations are complete This commands causes program execution to pause until all operations are complete See also WAI Parameter None Response Integer 1 after all operations are complete OPT Description Retrieves report of installed options Parameter None Responses Series of strings A comma separated list of the option names Ea
5. 0 cece cence eee eee eee 4G 1 4G 1 GENERAL DESCRIPTION 0 ccc cece cece cece eee reece eens 4G 1 4G22 THE STATUS KEY c95 c0860 se ite ete Sane p tau eee ees 4G 1 4G 3 DISPLAYING SELF TEST STATUS AND CALIBRATION COMPENSATION DATA 00 c cece eee 4G 2 5 REMOTE OPERATION 0 cece e cece cence ene tenet n enn ees 5 1 5 1 INTRODUCTION 2 020855 Sei cesta hats Gn on E a eres eae 5 1 5 2 SETTING UP THE IEEE 488 INTERFACE 0 e cece eens 5 1 5 3 Address Setup Procedure 0c cece cece een e ence ence eens 5 2 5 4 Talker Listener Mode Selection Procedure 0 e ee seeees 5 2 5 5 Compatibility Language Selection Procedure 0eeeeeeeee 5 3 5A REMOTE PROGRAMMING 0 ccc cece cece eee tenner eee nes 5A 1 SA 1 INTRODUCTION ih bae aed whee raat Lada cau epee aes 5A 1 5A 2 COMMAND SYNTAX INFORMATION 00 cece cee eee ees SA 2 5A 3 Parameter Syntax Rules ccc cece ccc eee eee eee e nee eens SA 2 5A 4 Extra Space Characters 2 25 6 66 sds e amenena ada KEA E EERE SA 3 5A 5 Termina ered far harrean EA AR etd etter tae eed 5A 3 5A 6 Incoming Character Processing 00 s esse cece nee n cence enees 5A 4 5A 7 Response Message Syntax 2 0 0 0 cece eee e eee e teen en enene SA 4 5A 8 INPUT BUFFER OPERATION 0c cece cece cece eee een e eee SA 4 SA 9 COMMANDS gp cre a cdg ede eden ag eek eee tadad A uA a
6. Sweep cannot be enabled with current sweep parameters Sweep field cannot be changed while sweeping Special func code invalid Store operation not allowed when Memory Locked Memory loction number invalid Memory location data invalid These 4000 series numbers do not exist on the HP8642 but have been added to alert the user that the Signal Generator has detected an error REMOTE OPERATION COMPATIBILITY LANGUAGES Table 5D 7 HP8642 Commands That Are Not Emulated DESCRIPTION Sweep Start Amplitude Sweep Stop Amplitude Backspace EMF Mode Entry Off Help Off Help Knob Hold Knob Increment Move Cursor One Decade Left Move Cursor One Decade Right Message Reference Set Shift Table 5D 8 HP8642 RF Output Frequency Commands That Are Not Emulated HP SPECIAL FUNCTION DESCRIPTION 8 Prefer HET Band 240 Decrement Frequency by 0 1 Hz Increment Frequency by 0 1 Hz Phase Adjustment from Knob and Step Up and Step Down Keys 250 REMOTE OPERATION COMPATIBILITY LANGUAGE 5D 16 Relative RF Frequency 5D 13 The following HP8642 Relative RF Frequency commands are emulated RZ Turn On Relative Frequency Mode RF Turn Off Relative Frequency Mode The following commands are not emulated RS lt value gt Set Reference to a Specific Frequency RSON Set Reference to Last Selected Reference RSOF Turn Off Reference Frequency RF Frequency S
7. Selects a special function by number Special function number Programs the Service Request Enable register SRE described under Check ing the Instrument Status The decimal equivalent of the binary number to load into the register SRE 56 Enables bits 3 IIR 4 MAV and 5 ESR in the Service Request Enable register Retrieves Service Request Enable register described in under the heading Checking the Instrument Status None Integer The decimal equivalent of the register byte SRE Returns 56 if bits 3 IIR 4 MAV and 5 ESR are enabled 1 and the rest of the bits are disabled 0 See Checking the Instrument Status for details Loads specified status into the status queue Uncal self test memory check sum and memory origin status can be loaded UNCAL or SELFTEST or CHECKSUM or ORIGIN 5B 39 REMOTE OPERATION REMOTE COMMAND TABLES STATUS Description Parameter Examples Responses Description Parameter Response Example STEP_AM Description Parameter Restrictions STEP_AMPL Description Parameter Restrictions STEP_FIELD Description Parameter Restrictions STEP_FIELD Description Parameter Response Table 5B 3 Remote Commands cont Retrieves a status code from the status queue If no status codes have been loaded with the STATUS command or if all the enqueued status codes have been retrieved a zero
8. 5 STEP KEYS These two keys work in conjunction with the Function Modifier key Both keys repeat while held down Increments the function parameter for the field that has has STEP annunciator lit by the programmed step size Z Decrements the function parameter for the field that has has STEP annunciator lit by the programmed step size STATUS KEY Used to display a Rejected Entry REJ ENTRY annunciator flashing or Status codes in the display fields MOD OUTPUT A BNC connector for output of the internal modulation oscillator signal CONNECTOR FEATURES FEATURES Table 3 1 Front Panel Features cont RF OUTPUT A Type N connector that supplies the Signal Generator RF output signal CONNECTOR RF OUTPUT A push on push off key with a corresponding RF OFF ON OFF KEY annunciator in the STATUS display field that enables and disables the RF output of the Signal Generator POWER A push on push to standby detent switch that enables line power to the SWITCH Signal Generator or enables standby power 3 10 FEATURES FOR FIRE PROTECTION z s v lt H E CAUTION rer TETT an EE Fi ERY PERR HRH estar REFERENCE MEDSTARLTY REFERENCE C ore uur D 3 11 FEATURES 3 12 Table 3 2 Rear Pane Features O AC INPUT Permits operation from 115V or 230V The number visible through the MODULE window on the selector card indicates the nominal line voltage
9. Entering sect 7 o 14 initiates the carrier phase adjust mode The message PHASE is displayed in the FREQUENCY display field and the initial phase adjustment of zero degrees is displayed in the AMPLITUDE display field Turn the edit knob to advance retard the phase in degree or 10 degree increments The edit lt j and keys change the resolution of the bright digit The Signal Generator does not measure the phase of the other signal source so it cannot display the absolute phase relationship between the two signals The display shows the relative phase adjustment applied to the rf output Pressing the o key sets the relative phase adjustment to zero establishing a reference Press any other key to exit the carrier phase adjust mode The relative phase adjustment may also be zeroed by entering sece 7 0 2 while outside of the carrier phase adjust mode The remote command PHASE adjusts the carrier phase by the specified number of degrees The relative phase adjustment is updated internally but is not displayed when the remote commands are received The command PHASE queries the relative phase adjustment The command PHASE_ZERO zeros the relative phase adjustment The display is momentarily blanked during a phase adjustment USING AN EXTERNAL FREQUENCY REFERENCE 4A 6 The Signal Generator normally derives its output frequency based on a 10 MHz internal reference oscillator Howe
10. Parameter Restrictions COMP_ATTPMTR Description Parameter Restrictions Table 5B 3 Remote Commands cont Calculates corrections save new data in calibration compensation memory Note that the rear panel CAL COMP switch must be set to 1 on None Only allowed when performing a calibration procedure or attenuator output or subsynthesizer compensation procedure Returns target value of calibration compensation procedure None 1 Float Target value 2 String PCT HZ DBM or V Only allowed when performing a calibration procedure or attenuator output or subsynthesizer compensation procedure Clears status Clears the ESR the ISCR and the error and status queues Terminates a pending operation complete command OPC or OPC None Clears alternate output compensation data Note that the rear panel CAL COMP switch must be set to 1 on None Repairs calibration compensation memory checksum errors Note that the rear panel CAL COMP switch must be set to 1 on None Rejected during a calibration or compensation procedure or during sweep Initiates attenuator compensation procedure Note that the rear panel CAL COMP switch must be set to 1 on None Rejected during a calibration or compensation procedure or during sweep Initiates attenuator compensation procedure with power meter Note that the rear panel CAL COMP switch must be set to 1 on None Rejected during a calibrat
11. Reports measured AM depth to calibration procedure Default units are PCT AM depth with optional PCT or units Only allowed when performing an AM calibration procedure Reports measured voltage to compensation procedure Default units are V Voltage with optional voltage units Only allowed when performing a sub synthesizer compensation procedure Reports measured FM deviation to calibration procedure Default units are HZ FM deviation with optional frequency units Only allowed when performing an FM calibration procedure Reports measured RF frequency to calibration procedure Default units are HZ Frequency with optional frequency units Only allowed when performing a reference oscillator calibration procedure Reports measured power to calibration compensation procedure Default units are DBM Output power with optional DBM units Only allowed when performing a level calibration or attenuator or output compensation procedure Resumes attenuator compensation procedure after calibrating level measurement equipment None Only allowed during remote attenuator compensation procedure 5B 15 REMOTE OPERATION REMOTE COMMAND TABLES 5B 16 CC_SAVE Description Parameter Restrictions CC_TARGET Description Parameter Responses Restrictions Description Parameter CMEM_CLRALT Description Parameter CMEM FIX Description Parameter Restrictions COMP_ATT Description
12. l ORARAA AANA T OEE AAEM INNES AINA TARAS AES ROSSI AAP ns RA A eggs ecg maths ssn epee us secs FEATURES 3 7 FEATURES Table 3 1 Front Panel Features cont After the frequency or amplitude function has been selected pressing this key displays the sweep increment for the function and allows a new sweep increment to be entered The SWEEP mode keys are enabled for the selected function A 10 digit plus sign and decimal key keypad used for entering a parameter value a Special Function code or an Instrument State Memory recall store location INSTRUMENT STATE MEMORY OPERATION KEYS Used with the DATA keys to store the current instrument state in a memory location Memory locations 01 through 50 are available You can store a single function parameter when you use one of these keys with any of the six FUNCTION keys Used with the DATA keys to recall an instrument state from a memory nce location Memory locations 01 through 50 are available for storage of instrument states Location 00 retains the instrument state in effect when the power is turned off and location 98 contains the Instrument Preset State described in Appendix A You can recall a single function parame ter when you use one of these keys with any of the six FUNCTION keys _ Sea Sequentially recalls in increasing location order the instrument state stored in memory While the key is pressed successive memory
13. CONDUCTOR LINE POWER CORD TO A PROPERLY GROUNDED POWER OUTLET DO NOT USE A TWO CONDUCTOR ADAPTER OR EXTENSION CORD THIS WILL BREAK THE PROTECTIVE GROUND CONNECTION After you verify that the line voltage selection pc board is in the correct position verify that the correct fuse for that line voltage is installed Connect the Signal Generator to a properly grounded three prong outlet INTERNAL EXTERNAL FREQUENCY REFERENCE 2 7 The Signal Generator normally operates with an internal reference oscillator However if desired the Signal Generator can be operated with an external reference by setting the rear panel REF INT EXT switch to EXT and connecting the external reference to the REF IN connector NOTE When the Signal Generator is operating on internal reference a 10 MHz Signal is present at the 10 MHz OUT connector To meet the specified radiated emissions this connector must be terminated with a BNC non shorting dust cap A dust cap PN 478982 is supplied with the signal Generator If a cable is connected it must be a double shielded coaxial cable such as RG 223 terminated in a 50 ohm load 2 4 INSTALLATION NOTE Do not operate the Signal Generator on internal reference with an external reference signal applied This causes output spectral degradation LOCAL AND REMOTE OPERATION 2 8 The Signal Generator output is controlled by either local front panel operation or remote operation in the local operation mode c
14. Note that 0 01 dB resolution is available for amplitude step sizes less than 20 0 dB even though the RF output amplitude is always displayed with 0 1 dB resolution In the event that a step size with 0 01 dB resolution is selected stepping the amplitude up or down may cause the display to become inconsistent with the actual amplitude Parameter entry of a new RF output amplitude always zeros the 0 01 dB digit however bright digit edit operations retain the 0 01 dB resolution RF AMPLITUDE STEP SIZE RANGE RESOLUTION 0 00 to 19 99 dB 0 01 dB 20 0 to 167 0 dB 0 1 dB O V to 2 24 V 3 digits SYNTAX Numeric Data kHz mv EXAMPLE Set Amplitude Step Size to 6 dB FRONT PANEL e REMOTE AMPL_STEP 6 DB USING RF AMPLITUDE RELATIVE MODE 4B 7 4B 4 The RF amplitude relative mode lets you establish a reference amplitude then set the output relative to that reference You set a reference by setting the RF output amplitude to the desired value and then enabling the relative mode using a Special Function command from the front panel or with the AMPL_REL command in remote This causes the REL annunciator to light in the AMPLITUDE display field and the displayed value to become zero The Signal Generator output does not change during this operation In the relative mode you can use the usual means of parameter modification Function Entry Bright Digit Edit or Step Increment Decrement In the relative amplitude mode the output amplitude is th
15. Once you have set the Signal Generator so that the HP 8642 remote language is active the Signal Generator is ready to operate in an existing HP 8642 family system but with some minor restrictions and differences Use following text to help you decide on whether or not to make program modifications and what to modify IEEE 488 GPIB Address 5D 7 The HP8642 allows a GPIB address to be set from 0 to 31 with address 31 designated as the listen only state The 6080A 82A allows any address from 0 to 30 to be set listen only is set exclusive of the GPIB address IEEE 488 GPIB Interface Capabilities 5D 8 The 6080A 82A differs from the HP8642 in the capabilities listed in Table 5D 5 In the 8642 emulation mode the 6080A 82A provides the following IEEE Std 488 capabilities consistent with the HP8642 SH1 AHI TEO L3 LEO SR1 RL1 PPO DC1 DT0 E2 The HP8642 actions for Device Clear Selected Device Clear and Local Lockout are emulated in the 6080 The HP8642 Service Request generation and clearing setting of the RQS mask is emulated A unique copy of the RQS mask is maintained for the 8642 emulation language The 8642 emulation RQS mask is the same as that for the 8642 with the following exception bits 0 and 7 of the Status Byte End of Sweep and Parameter Changed are always 0 if the corresponding bits of the RQS mask are set in the 8642 emulation language no SRQ is generated Table 5D 5 EEE 488 Interface Capibil
16. Parameter Response Example Description Parameter Response Example KEY_RATE Description Parameter Restrictions KEY_RATE Description Parameter Response REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Retrieves the byte from the Instrument Status Change Enable register described under Checking the Instrument Status None The decimal equivalent of the register contents byte ISCE Returns 4 if bit 3 RPP is enabled 1 and the rest of the bits are disabled 0 See Checking the Instrument Status for details Retrieves and clears the byte from the Instrument Status Change Register described under Checking the Instrument Status None The decimal equivalent of the register contents byte ISCR Returns 8 if bit 3 RPP is set 1 and the rest of the bits are reset 0 See Checking the Instrument Status for details Retrieves and clears the byte from the Instrument Status Register described under Checking the Instrument Status None The decimal equivalent of the register contents byte ISR Returns 16 if bit 4 FM LO is set 1 and the rest of the bits are reset 0 See Checking the Instrument Status for details Selects the repeat rate for the step keys SLOW or MEDIUM or FAST Rejected during sweep Retrieves the key repeat rate None String SLOW or MEDIUM or FAST 5B
17. SWEEP Description Parameter Response SWEEP_DWELL Description Parameter Example REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Steps the FM OM deviation up or down by one step size UP or DOWN Rejected during single sweep Steps the output frequency up or down by one step size UP or DOWN Rejected during single sweep Steps the modulation frequency up or down by one step size UP or DOWN Rejected during single sweep Steps the modulation level up or down by one step size UP or DOWN Rejected during single sweep Steps the active step field up by one step size None Rejected during single sweep Selects the sweep mode OFF or AUTO or MANUAL or SINGLE Retrieves the sweep mode None String OFF or AUTO or MANUAL or SINGLE Programs the sweep dwell time Default units are S Dwell time with optional seconds units SWEEP_DWELL 500 MS 5B 41 REMOTE OPERATION REMOTE COMMAND TABLES SWEEP_DWELL Description Parameter Responses SWEEP_FIELD Description Parameter Restrictions SWEEP_FIELD Description Parameter Response SWEEP_SYM Description Parameter Restrictions SWEEP_SYM Description Parameter Response TEST_ATT Description Parameter Restrictions TEST_DISP Description Parameter Restrictions 5B 42 Table 5B 3 Remote Commands cont Retrieves the sweep dwell time N
18. 2 displays the current modulation frequency in the FREQUENCY display field with 0 1 Hz resolution followed by a question mark prompt which indicates that a new modulation frequency can be entered If a new modulation frequency is entered in response to the prompt it is rounded to 0 1 Hz resolution and the modulation oscillator circuitry is programmed accordingly The new modulation frequency is displayed in the MODULATION display field If it has more than three significant digits it is rounded to three digits before it is displayed Mod Frequency entries are stored in two formats with the displayed 3 digit resolution and with extended 0 1 Hz resolution Every Mod Frequency or extended resolution Mod Frequency entry is stored in both formats However step edit store and recall operations operate on the displayed value only Extended resolution Mod Frequency entries are temporary entries in that any edit or step increment decrement operations force the value back into normal resolution Only Special Function 42 will display an extended entry with full resolution and only if no intervening commands have truncated it SYNTAX 4 C2 Numeric Data AMPLITUDE MODULATION AM 4C 8 Amplitude modulation depth is displayed in the Signal Generator modulation display field with 0 1 of resolution The AM depth is displayed with units Note that internal AM can be combined with external ac coupled AM ACAM or external dc coupled A
19. 30 48 Equivalent to MEM_DIVIDER 1 25 30 48 AMPL 1 2 5 DBM Invalid no space allowed in a number AMPL 12 5 DBM Correct form for above Table 5B 3 contains examples for commands whose parameters are not self explana tory Remote program examples for the Fluke 1722A Instrument Controller are provided at the end of this section Terminators 5A 5 To signify the end of a response sent to the controller the Signal Generator sends a terminator The Signal Generator sends the ASCII character Line Feed LF with the EOI control line asserted as the terminator for response messages The Signal Generator recognizes the following as terminators when encountered in incoming data The ASCII LF character Any ASCII character sent with the EOI control line asserted The terminator used by the Fluke 1722A Instrument Controller for data it sends to instruments on the IEEE 488 bus is programmable but its default is LF with EOI REMOTE OPERATION REMOTE PROGRAMMING Incoming Character Processing 5A 6 Respo The Signal Generator processes all incoming data as follows 1 All data is taken as 7 bit ASCII the eighth bit DIO8 is ignored except the 8 bit data byte portion of the PUD and DDT parameters 2 Lower case or upper case characters are accepted 3 ASCII characters whose decimal equivalent is less than 32 Space are discarded except for characters 10 LF and 13 CR and in the PUD and DDT command arguments The
20. 4C 5 4C 10 Activating Internal AM cece cece eet e eee ete ee teen en eee 4C 6 4C il Activating External AM AC Coupled 2 0 cece eee 4C 6 4C 12 Activating External AM DC Coupled 0 eee eee eee 4C 7 4C 13 FREQUENCY AND PHASE MODULATION FM M 4C 7 4C 14 Setting FM M Deviation and FM M Step Size 4C 7 4C 15 Converting FM M Units asscsssssrerrrererenesrrorerersrsres 4C 9 4C 16 Activating Internal FM M_ 1 eee ee eee eee eter nents 4C 10 4C 17 Activating External FM M AC Coupled 0 0 eee eee 4C 10 4C 18 Activating External FM DC Coupled 0 cece eee eens 4C 10 4C 19 FM Bands 0 ccc e cece cece nent ete teeta teen en anne 4C 11 4C 20 Using Low Distortion and Fixed Range FM Modes 5 4C 12 4C 21 Using Low Rate FM Mode eee cece cece nee e eee ee eee 4C 13 i continued on page iii SECTION 4D 4E 4F TITLE 4C 22 Using High Rate pM Mode 0 c ccc ec eee eee eee eens 4C 23 PULSE MODULATION 0 00 cece cece cence teen nee 4C 24 Activating External Pulse Modulation 0 cee ee eens 4C 25 Activating Internal Pulse Modulation 0seceeee 4C 26 Using the Mod Oscillator as a Pulse Generator 6 055 4C 27 Setting Pulse Width soc erriko na Er eee cece ERA n tenes INSTRUMENT STATE MEMORY 0 cece cece cece tenes 4
21. ISCE READ BACK THE VALUE 4O INPUT 2 A ee 50 PRINT ISCE A PRINT IT IT SHOULD BE 8 60 END The ISCE cannot be loaded from the front panel 5A 15 REMOTE OPERATION REMOTE PROGRAMMING 5A 16 Status Queue 5A 32 The status queue is loaded with the STATUS command The argument to the STATUS command UNCAL SELFTEST CHECKSUM or ORIGIN indicates which status is to be loaded The previous contents of the status queue are cleared when a new status is loaded with the STATUS command Once the status queue is loaded it can be read with successive STATUS commands A response of 0 indicates that the status queue is empty All status codes are defined in Appendix D and E of this manual STATUS EXPLAIN will return the status code and a description of the status code Reading the first status with the STATUS command removes that status from the queue A response of 0 means the status queue is empty The Status Available SAV bit in the Serial Poll Status Byte is 0 when the status queue is empty and 1 when the queue has been loaded with the STATUS command The status queue is cleared when the Signal Generator is turned on and by the CLS command IEEE 488 INTERFACE CONFIGURATION 5A 33 The Signal Generator IEEE 488 interface supports the IEEE 488 interface function subsets listed in Table 5A 2 Table 5A 2 IEEE 488 interface Function Subsets Supported INTERFACE FUNCTION DESCRIPTION Complete source han
22. Moves the bright digit to the specified field AM or AMPL or FM or FREQ or MODF or MODL Rejected during sweep Retrieves the current bright digit field None String AM or AMPL or FM or FREQ or MODF or MODL Initiates AM calibration procedure Note that the rear panel CAL COMP switch must be set to 1 on None Rejected during a calibration or compensation procedure or during sweep Initiates FM calibration procedure Note that the rear panel CAL COMP switch must be set to 1 on None Rejected during a calibration or compensation procedure or during sweep Initiates level calibration procedure Note that the rear panel CAL COMP switch must be set to 1 on None Rejected during a calibration or compensation procedure or during sweep REMOTE OPERATION REMOTE COMMAND TABLES CAL_REFOSC Description Parameter Restrictions CC_BRKFREQ Description Parameter Responses CC_ERRFREQ Description Parameter Responses CC_EXIT Description Parameter Restrictions CC_FREQ Description Parameter Responses Restrictions 5B 14 Table 5B 3 Remote Commands cont Initiates reference oscillator calibration procedure Note that the rear panel CAL COMP switch must be set to 1 on None Rejected during a calibration or compensation procedure or during sweep Returns attenuator compensation procedure break frequency None 1 Float Frequency 2 String H
23. REN REMOTE Local Lockout LLO REN LOCKOUT Local GTL or LOCAL key Remote Lockout LLO REN LOCKOUT Local Lockout Remote Lockout MLA REN REMOTE or any Signal Generator command Remote Lockout Local LOCAL Locai Lockout LOCAL CHECKING THE INSTRUMENT STATUS 5A 15 The programmer has access to status registers enable registers and queues in the Signal Generator to indicate various conditions in the Signal Generator as shown in Figure 5A 1 Some of the registers and queues are defined by the IEEE 488 2 standard The rest are specific to the Signal Generator Each status register and queue has a summary bit in the Serial Poll Status Byte Enable registers are used to mask various bits in the status registers and generate summary bits in the Serial Poll Status Byte The Service Request Enable Register can be used to assert the IEEE 488 Service Request SRQ control line on any one of the status conditions in the instrument Queries cause the Signal Generator response to be placed in the output queue The output queue may contain responses from more than one query The responses are output on a first in first out basis one at a time in response to a controller input program statement If the output queue is empty no response will be sent to the controller Serial Poll Status Byte STB 5A 16 The most important and frequently used register is the serial poll status byte which the Signal Generator sends when it respon
24. RL1 PPO DC1 DTI CO and E2 INTERNAL MODULATION SOURCE Sine Wave Rates 0 1 Hz to 200 kHz key selectable 400 1000 Hz Display Ranges 00 1 to 99 9 Hz 100 to 999 Hz 1 00 to 9 99 kHz 10 0 to 99 9 kHz 100 to 200 kHz Frequency Resolution 0 1 Hz or 3 digits Frequency Accuracy Same as reference oscillator 7 millihertz 1 17 INTRODUCTION AND SPECIFICATIONS Table 1 2 Specifications for Model 6082A cont Output Level Range 0 to 4V pk into 600Q Output Level Resolution 1 mV pk or 3 digits whichever is greater Distortion lt 0 15 THD for output levels gt 0 2V pk and modulation frequency lt 20 kHz Output Level Accuracy 4 15 mV for modulation frequency lt 100 kHz Output Impedance 6000 2 Other Waveforms Available by Special Function Square Wave Special Function 752 Triangle Wave Special Function 751 Pulse Special Functions 758 759 width 100 ns to 1 Fmod in 100 ns or 3 digit increments whichever is greater Rate and width are coherent with signal generator time base EXTERNAL MODULATION 1V pk provides indicated modulation index Nominal input impedance is 6002 Maximum level is 5V pk MODULATION MODES Any combination of AM PULSE and FM or OM internal or external may be used DIGITAL FREQUENCY SWEEP Sweep Modes Auto single or manual Adjustable Parameters Sweep symmetry sweep speed sweep width and sweep increment Sweep Speed Minimum
25. SELECTING FREQUENCY OR AMPLITUDE SWEEP 4E 2 Selection of frequency sweep or amplitude sweep from the front panel is performed by pressing the desired function key followed by either sweep parameter No numeric entry or unit entry is necessary to change the sweep field The SWEEP_FIELD command selects the desired function from Remote The selected function has the SWP annunciator lit in its display field This operation ties the selected function frequency or amplitude to the sweep mode controls but does not activate any of the sweep modes auto manual or single The sweep field may not be changed while a sweep is active SYNTAX FRONT PANEL REMOTE Select Frequency Sweep SWEEP_FIELD FREQ caia Select Amplitude Sweep SWEEP_FIELD AMPL o E SUMMARY OF SWEEP MODES 4E 3 From the front panel Auto and Manual Sweep Mode are enabled and disabled by pressing keys located in the SWEEP ON OFF section while Single Sweep is enabled with a Special Function command in remote the SWEEP command selects a Sweep Mode The sweep on off keys operate as toggle functions the key enables a sweep mode is pressed again to disable the mode For example pressing the auto key once enables the auto sweep mode and pressingthe auto key again turns off the auto sweep The same holds true forthe manuat key Since the single sweep mode is enabled by Special Function and terminates automatically no direct toggle capability is provided However pressinge
26. Yellow LED When lit indicates that the Signal Generator is in the standby state and is connected to the power mains The LED is off when the Signal Generator is operating G MODULATION Used to select type and source of modulation With the exception of the ON OFF key these keys operate as independent push on push off KEYS switches for the given modulation 1 Enables internal amplitude modulation EX AC Enables external ac coupled amplitude modulation using the signal applied to the AM MODULATION INPUT connector Enables external de coupled amplitude modulation using the signal applied to the AM MODULATION INPUT connector Enables internal frequency or phase modulation Enables external ac coupled frequency or phase modulation using the signal applied to the FM OM MODULATION INPUT connector Enables external dc frequency or phase modulation using the signal applied to the FM M MODULATION INPUT connector Toggles the internal modulation oscillator frequency between 400 and 1000 Hz Used as an alternative to the key and data input 3 6 Table 3 1 Front Panel Features cont Enables external pulse modulation using the signal applied to the m MODULATION INPUT connector MODULATION INPUT CONNECTORS AM A BNC connector for input of a 1V pk external AM modulation signal A BNC connector for input of a 1V pk external FM OM modulation signal JL A BNC connector for inpu
27. address is ignored Addr 23 Lo Listen only mode address is ignored Enter two digits for the desired new address Addresses are allowed in the range of 0 to 30 The new address is displayed for 2 seconds The address is stored in non volatile memory and is retained when the power is turned off Talker Listener Mode Selection Procedure 5 4 When using an IEEE 488 bus controller the Signal Generator should be set to operate in the addressed mode A talk only and listen only mode are provided for use on the TEEE 488 bus without a controller Two Signal Generators can be connected together to track each other with the talk only and listen only modes Enter sPeL 1 1 to display the current talker listener mode in the FREQUENCY display field EXAMPLE EXPLANATION Addr Normal Addressed mode to Talk only mode Lo Listen only mode When the Signal Generator is in talk only or listen only it is always addressed to talk or listen so the ADDR annunciator on the front panel is always lit Enter 0 to select the addressed mode 1 to select the talk only mode and 2 to select the listen only mode The new talker listener mode is displayed for 2 seconds The selected mode is stored in non volatile memory and retained when the power is turned off REMOTE OPERATION Compatibility Language Selection Procedure 5 5 The default language for the Signal Generator is described in this section To select and use
28. and configuration of the Signal Generator for local and remote operation are provided here UNPACKING AND INSPECTION 2 2 The Signal Generator is shipped in a special protective carton that should prevent damage during shipment Check the shipping order against the contents of the carton and report any damage or short shipment to the place of purchase or the nearest Fluke Technical Service Center Instructions for inspection and claims are included on the shipping container Refer to Section 1 for reshipment instructions The shipping container should include the items in Table 2 1 Accessories ordered for the Signal Generator are shipped in a separate container Table 2 2 lists accessories available for the Signal Generator RACK OR BENCH MOUNTING 2 3 CAUTION To prevent overheating allow at least 3 inches of clearance behind and on each side of the Signal Generator You can place the Signal Generator on a work bench or mount it ina standard 24 inch deep equipment rack The outside dimensions of the Signal Generator are shown in Table 1 1 To mount the Signal Generator in an equipment rack use the Model Y6080 01 Rack Mount Kit The rack mount kit contains 5 14 inch rack mount ears and 22 inch slides and comes with an instruction sheet For optimum cooling airflow it is recommended that you install a Model Y6080 03 Filler Panel which occupies inches of rack space directly below the Signal Generator The added airflow space de
29. locations are displayed When the key is released the location last displayed is recalled Pressing _rct_ followed by sequentially recalls in decreasing order the stored instrument states 1 UNITS KEYS These keys with the exception of ccri ct terminate entry of a function parameter You can also use these keys to convert displayed amplitude or FM OM units Used with the Frea FMiom and function keys to specify units of megahertz Used with the ame and 9 function keys to specify units of volts You also use this key with the Pulse Width Entry Special Function to specify units of microseconds Used with the Free rmion and f 422 function keys to specify units of kilohertz You also use this key with the f ampL and Meo function keys to specify units of millivolts and with the Pulse Width entry Special Function to specify units of milliseconds Hziv Used with the Frea rmlom and Aea function keys to specify units of hertz Used with the amec and m09 function keys to program the parameter data in units of microvolts Used with the Pulse Width entry Special Function to program the parameter data in units of seconds 3 8 Tabie 3 1 Front Panel Features cont Used with the amet function key to program the parameter data in terms of decibels relative to one milliwatt or to an alternate reference if selected by Special Function You also use this key in
30. 000020 000000 000000 000000 000040 000000 000000 000000 000100 000000 000000 000000 000000 000001 000000 000000 000000 000002 000000 000000 000000 000004 000000 000000 000000 000010 000000 000000 000000 000020 000000 000000 000000 000040 000000 000000 000000 000100 000000 000000 000000 000200 001000 000000 000000 000000 FM DAC at full scale Delay discriminator unleveled ACFM deviation too high DCFM deviation too high Modulation frequency DAC too low Modulation frequency DAC too high FM deviation too high AM depth too high 6071A frequency out of calibrated limits Mod divider filters out of calibrated limits Frequency out of calibrated limits Sub synthesizer unlocked Delay discriminator not ready Excess FM deviation Reference phase detector unlocked Level DAC too low Peak AM amplitude too high ALC loop unleveled Level DAC at 0 Level DAC at full scale RPP tripped Amplitude too low Level correction disabled All other status codes new for 6082A gt b 000001 000000 000000 000000 000002 000000 000000 000000 000004 000000 000000 000000 000010 000000 000000 000000 FM OM deviation out of range DCFM not allowed when phase modulation enabled Radians entry not allowed with DCFM enabled FM OM units conversion not allowed when external FM enabled FM M units conversion out of M range Invalid memory locatio
31. 10 MHz OUT connector 3 12 Terminators 5A 3 TEST_ATT remote command 5B 42 TEST_DISP remote command 5B 42 TRG remote command Defined 5B 43 How to use 5A 23 TST remote command 5B 43 UNITS keys 3 8 Unpacking 2 1 Up arrow key 3 9 WAI remote command Defined 5B 41 How to use 5A 22 Warranty information 1 3 Warranty reverse of Title Page Write protecting memory locations 4D 6 A ection
32. 29 REMOTE OPERATION REMOTE COMMAND TABLES 5B 30 KNOB_STEP Description Parameters Example Restrictions KNOB_STEP Description Parameter Responses Example LOCALERT Description Parameter LOCALERT Description Parameter Response LORATEFM Description Parameter Restrictions LORATEFM Description Parameter Response LOWNOISE Description Parameter Restrictions Table 5B 3 Remote Commands cont Selects the operation of the knob and step up down keys The knob can be turned on default or off the step up down keys can be configured to perform step up down function default or edit up down function 1 ON or OFF Turns the knob on or off 2 STEP or EDIT Configures the step keys KNOB_STEP OFF EDIT Knob off step keys do edits Rejected during sweep Retrieves the state of the knob and step up down keys None 1 String ON or OFF 2 String STEP or EDIT OFF EDIT Knob off step keys do edits Sets mode to generate an SRQ on complete front panel operations ON or OFF or 1 or 0 Retrieves the state of the local alert LOCALERT mode None String ON or OFF Turns low rate FM mode On or Off ON or OFF or 1 or 0 Rejected during sweep Retrieves the state of the low rate FM mode None String ON or OFF Selects low noise external reference mode ON or OFF or 1 or 0 Rejected during sweep LOWNOISE Descript
33. 3 Functional Elements of Commands ELEMENT FUNCTION PROGRAM MESSAGE PROGRAM MESSAGE UNIT COMMAND MESSAGE UNIT QUERY MESSAGE UNIT PROGRAM DATA PROGRAM MESSAGE UNIT SEPARATOR PROGRAM HEADER SEPARATOR PROGRAM DATA SEPARATOR PROGRAM MESSAGE TERMINATOR COMMAND PROGRAM HEADER QUERY PROGRAM HEADER CHARACTER PROGRAM DATA DECIMAL NUMERIC PROGRAM DATA NON DECIMAL NUMERIC PROGRAM DATA SUFFIX PROGRAM DATA STRING PROGRAM DATA ARBITRARY BLOCK PROGRAM DATA A sequence of zero or more PROGRAM MESSAGE UNIT elements separated by PROGRAM MESSAGE UNIT SEPARATOR elements A single command programming data or query received by the device A single command or programming data received by the device A single query sent from the controller to the device Any of the six program data types Separates PROGRAM MESSAGE UNIT elements from one another in a PROGRAM MESSAGE Separates the header from any associated PROGRAM DATA Separates sequential PROGRAM DATA elements that are related to the same header Terminates a PROGRAM MESSAGE Specifies a function or operation Used with any associated PROGRAM DATA elements Similar to a COMMAND PROGRAM HEADER except a query indicator shows that a response is expected from the device A data type suitable for sending short mnemonic data generally used where a numeric data type is not suitable A data type suitable for sending decimal integers of decimal fracti
34. 3 6 EXT AC FM M key 3 6 EXT DC AM key 3 6 EXT DC FM M key 3 6 EXT pulse key 3 7 EXTAC_AM remote command 5B 21 EXTAC_AM remote command 5B 22 EXTAC_FM remote command 5B 22 EXTAC_FM remote command 5B 22 EXTDC_AM remote command 5B 22 EXTDC_AM remote command 5B 22 EXTDC_FM remote command 5B 22 EXTDC_FM remote command 5B 22 External frequency reference 2 4 4A 3 EXT_PULSE remote command 5B 21 EXT_PULSE remote command 5B 21 EXTREF_FREQ 5B 22 EXTREF_FREQ remote command 5B 23 Features 3 1 Fixed range mode RF output amplitude 4B 7 Fluke sales and service centers G 1 Fluke 6060 and 6070 compatibility language 5D 3 Commands emulated 5D 7 Incompatibilities 5D 2 Programs converting to use the 6080 language 5D 9 Remote commands 5D 7 Units 5D 10 FM see frequency and phase modulation FREQ key 3 7 FREQ remote command 5B 24 FREQ remote command 5B 24 FREQ ABS remote command 5B 24 FREQ_BASE remote command 5B 25 FREQ_BLANK remote command 5B 25 FREQ _BLANK remote command 5B 25 FREQ_BRT remote command 5B 25 FREQ_BRT remote command 5B 25 FREQ_MANUAL remote command 5B 25 FREQ_REL remote command 5B 26 FREQ_REL remote command 5B 26 FREQ _SINCR remote command 5B 26 FREQ _SINCR remote command 5B 26 FREQ_STEP remote command 5B 26 FREQ_STEP remote command 5B 26 FREQ_SWIDTH remote command 5B 27 FREQ_SWIDTH remote command 5B 27 Frequency and phase modulation FM M 4C 7 Band limits 4C 11
35. 3 7 AMPL remote command 5B 9 AMPL remote command 5B 9 an AMPL_ABS remote command 5B 9 AMPL_BASE remote command 5B 9 AMPL_BRT remote command 5B 10 AMPL_BRT remote command 5B 10 AMPL_CMPDAT remote command 5B 10 AMPL_CMPDAT remote command 5B 10 AMPL_COMP remote command 5B 10 AMPL_COMEP remote command 5B 10 AMPL_EMFOUT remote command 5B 10 AMPL_EMFOUT remote command 5B 11 Amplitude modulation AM 4C 5 AM remote command 5B 8 AM remote command 5B 8 Connector 3 7 Depth and depth step size 4C 5 External ac coupled 4C 6 External dc coupled 4C 7 Key 3 7 Internal 4C 6 Amplitude sweep 4E 6 Increment 4E 8 Width 4E 8 AMPL_MANUAL remote command 5B 11 AMPL_RANGE remote command 5B 11 AMPL_RANGE remote command 5B 11 AMPL_REL remote command 5B 11 AMPL_REL remote command 5B 11 AMPL_SINCR remote command 5B 11 AMPL_SINCR remote command 5B 12 AMPL_STEP remote command 5B 12 Index AMPL_STEP remote command 5B 12 AMPL_SWIDTH remote command 5B 12 AMPL_SWIDTH remote command 5B 12 AMPL_UNITS remote command 5B 12 AM_STEP remote command 5B 8 AM_STEP remote command 5B 8 Analog frequency sweep 4E 10 Annunciators display 3 5 Arrow keys 3 9 ATT_LOG remote command 5B 13 AUTO key 3 9 AUX connector 3 12 Pinout F 1 Blanking The front panel display 4F 5 Output during frequency changes 4A 4 BRT_FIELD remote command 5B 13 BRT_FIELD remote command 5B 13 Bus communication overview 5A
36. 4F 4 Display Calibration compensation data 4G 2 DISPLAY remote command 5B 18 DISPLAY remote command 5B 19 Instrument ID 4F 4 Loaded options 4F 4 Self test status 4G 2 Software revision level 4F 4 Display features Amplitude field 3 4 Frequency field 3 4 Modulation field 3 3 Display status annunciators 3 5 Down arrow key 3 9 Edit EDIT_AM remote command 5B 19 EDIT_AMPL remote command 5B 19 EDIT_FM remote command 5B 19 EDIT_FREQ remote command 5B 19 EDIT_MODPF remote command 5B 19 EDIT_MODL remote command 5B 19 Edit knob configuring 4F 5 Edit knob special functions 4F 5 Keys 3 9 Knob 3 9 EMF units 4B 3 Enabling And disabling modulation output 4C 4 Special functions 4F 3 Entering parameters 4 1 Bright digit editing 4 2 Directly 4 2 Incrementing and decrementing by step 4 3 Erasing instrument state memory 4A 8 ERASE_RPT remote command 5B 20 ERASE_RPT remote command 5B 20 Error Status reporting 4G 1 ERROR remote command 5B 20 Queue 5A 13 ESE see Event Status Enable register ESE remote command 5B 19 ESE remote command 5B 19 ESR see Event Status Register ESR remote command 5B 19 ETIME remote command 5B 21 Event Status Enable register ESE 5A 12 Bit assignments 5A 10 ESE remote command 5B 20 ESE remote command 5B 20 Programming 5A 12 Event Status Register ESR 5A 10 Bit assignments 5A 10 ESR remote command 5B 21 EXPLAIN remote command 5B 21 EXT AC AM key
37. 5 1 OPT remote command 5B 35 Options 1 3 Organization of instrument state memory 4D 1 Output queue IEEE 488 5A 13 Overrange uncal status codes D 1 Parameters Entering and modifying front panel 4 1 Remote command syntax rules 5A 2 rad key 3 9 PHASE remote command 5B 35 PHASE remote command 5B 36 PHASE_CLK remote command 5B 36 PHASE_CLK remote command 5B 36 PHASE_ZERO remote command 5B 36 Power Requirements 2 1 Switch 3 10 Power on sequence 2 5 Recalling previous instrument settings at power up 4 1 PRESET remote command 5B 36 Preset state A 1 Programming also see remote control IEEE 488 The ESR and ESE 5A 12 The ISR ISCR and ISCE 5A 15 The STB and SRE 5A 10 PUD remote command 5B 36 PUD remote command 5B 37 Pulse modulation External 4C 14 Internal 4C 14 Input connector 3 7 Width rate and period 4C 15 PULSE_WIDTH remote command 5B 37 PULSE_WIDTH remote command 5B 37 Queue error 5A 16 Queue status 5A 16 Rack mounting 2 1 RCL key 3 8 RCL remote command 5B 37 Recalling A sequence of instrument states 4D 4 Instrument states 4D 3 Previous instrument settings at power up 4 1 Single parameters 4D 6 Recorder calibrating 4E 10 REF IN connector 3 12 REF INT EXT switch 3 12 REF remote command 5B 38 Rejected entry codes C 1 Relative amplitude unit combinations 4B 5 Remote commands 5A 4 Command processing 5A 5 Compatibility languages see Fluke 6060 and HP 8642
38. Band limits low distortion mode 4C 12 Bands 4C 11 External de coupled 4C 10 External FM M ac coupled 4C 10 FM remote command 5B 23 FM remote command 5B 23 FM_BRT remote command 5B 23 FM_BRT remote command 5B 23 FM M connector 3 7 FM M deviation and FM M step size 4C 7 FM M deviation limits FM M enabled 4C 9 FM M key 3 7 FM M units converting 4C 9 FM_RANGE remote command 5B 23 FM_RANGE remote command 5B 23 FM_STEP remote command 5B 24 FM_STEP remote command 5B 24 FM_UNITS remote command 5B 24 Internal FM M 4C 10 Frequency Bands 4A 4 Sweep 4E 4 Sweep increment 4E 5 Sweep width 4E 5 Function keys 3 7 Fuse 2 4 GAL remote command 5B 27 High rate phase modulation mode 4C 13 tt HIRATEPM remote command 5B 27 HIRATEPM remote command 5B 27 HP 8462 compatibility language Amplitude sweep 5D 17 AM pulse modulation 5D 17 INDEX Commands not emulated 5D 15 Error code mapping 5D 14 FM M 5D 17 IEEE 488 interface capabilities 5D 12 Special functions emulated 5D 20 Hz uV key 3 8 IDN remote command 5B 27 IEEE 488 interface 5 1 Configuration 5A 16 Connector 3 12 5A 16 IEEE 488 remote control see remote control IEEE 488 Inspection incoming 2 1 Installation 2 1 Instrument ID display of 4F 4 Instrument preset state A 1 Instrument preset state Defined A 1 Reverting to 4F 4 Instrument state memory 4D 1 Dividing into partitions 4D 4 Erasing 4D 6 Non storable recallab
39. Cords Avaliable from Fluke 0 ccc ceueceeeeceeuees 2 3 2 2 Fuse Line Voltage Selection Assembly 0 0 00 ccc seceeceecceeeteceveneees 2 4 3 1 Front Panel Features 0 ccc cc cee eee ccc cece ence e eee ne necatenetengeees 3 2 3 2 Rear Panel Features 2 1 00 ccc ccc cece cence eect eeeeeeeretnereeesteetenennes 3 11 SA I Overview of Status Data Structure 0 0 cece cece cece cece eensveseeee 5A 8 SA 2 Bit Assignments for the STB and SRE 20 ccc cee ee ee cece enee 5A 9 5A 3 Bit Assignments for ESR and ESE 0 ccc cece eee e cece ee ceeeeeuees SA 11 5A 4 Bit Assignments for the ISR ISCR and ISCE 0 ccc cece cece 5A 14 5A 5 IEEE 488 Connector and Pin Assignments 0 0 ccceceeeceeueeues 5A 21 6080A 82A Synthesized RF Signal Generator Section 1 Introduction and Specifications INTRODUCTION 1 1 The 6080A and 6082A Synthesized RF Signal Generators are fully programmable precision synthesized signal sources They are designed for applications that require good modulation frequency and output level performance with excellent spectral purity Both Signal Generators are well suited for testing a wide variety of RF components sub assemblies and systems including filters amplifiers mixers and receivers particularly off channel radio testing Both models are called the Signal Generator in this manual It is noted wherever information applies specifically
40. Extra space characters 5A 3 Functional elements 5A 18 Incoming character processing 5A 4 Input buffer operation 5A 4 Multiple 5A 5 Requiring the CAL COMP switch to be set 5A 5 Response message syntax 5A 4 Restrictions 5A 5 Syntax information 5A 2 Table summary 5B 2 Table comprehensive 5B 8 Terminators 5A 3 Remote control IEEE 488 5 1 Address selection 5 2 And local operation 2 5 Interface messages accepted 5A 19 Interface messages sent 5A 20 Language selection 5D 1 Local state 5A 6 Local with lockout state 5A 6 Program examples see Remote programming examples Remote local state transitions 5A 6 Remote state 5A 6 Remote with lockout state 5A 6 Setup procedures 5 2 Talker listener operation 5 2 Talk only listen only operation 5C 1 Remote programming examples 5A 22 DDT using 5A 23 OPC using 5A 22 OPC using 5A 22 TRG using 5A 23 WAI using 5A 22 Repeat count nonvolatile memory erase operation 4D 9 Resetting all memory locations to factory default 4D 6 Response message syntax 5A 4 RF output Blanking during frequency changes 4A 4 Connector 3 10 ON OFF key 3 10 INDEX RF output amplitude 4B 1 Bands 4B 6 Converting RF output amplitude units 4B 2 Enabling and disabling RF output 4B 6 Selecting alternate dB reference units 4B 2 Setting 4B 1 Setting RF output amplitude step size 4B 4 Using RF amplitude relative mode 4B 4 Using unterminated output EMF mode 4B 3 RF out
41. Generator Please read this information before operating the Signal Generator Front panel operating instructions are provided in Section 4 and remote operating instructions are provided in Section 5 FRONT PANEL FEATURES 3 2 Figure 3 1 shows the front panel Table 3 1 describes the front panel features ae REAR PANEL FEATURES 3 3 Figure 3 2 shows the rear panel Table 3 3 describes the rear panel features 3 1 FEATURES Sor E ENER CI Je viva i i i i Lr WAINA Wy va og 1x3 20 ba Je EEA mzz HOLWY3N TYNIIS T IWNOIS 0371S 3HI ias voso SANM ad dMs BY diS BB BBB B888 N AEEA Figure 3 1 Front Panel Features 3 2 Table 3 1 Front Panel Features MODULATION A three digit display with associated annunciators used to display the DISPLAY AM depth FM OM deviation source of modulation signal modulation FIELD frequency and modulation level It is also used to display active error codes and status codes Indicates that the internal modulation oscillator signal is amplitude AM modulating the output Indicates that the internal modulation oscillator signal is frequency FM modulating the output Indicates that the internal modulation oscillator signal is phase modulating M the output Indicates that the internal modulation oscillator signal is pulse modulating SIL the output Indicates that the ac coupled signal at the AM MODULATION INPUT AC con
42. In this mode two Signal Generators can be configured to track each other in operation This mode is described in Section 5C Listen Only Talk Only Operation The Signal Generator internal software includes compatibility languages for emulating Fluke Models 6060A 6060B 6061 A 6062A 6070A and 6071 A and Hewlett Packard Models 8642A or B This capability allows substituting a 6080A or 6082A for one of the above instruments in an existing system with no or in some cases minor software modifications These compatibility languages are described in Section 5D Compatibility Languages SETTING UP THE IEEE 488 INTERFACE 5 2 The Signal Generator is set at the Fluke factory to operate in the normal talker listener mode If the listen only talk only modes or the compatibility languages are to be used follow the setup procedures described in this section REMOTE OPERATION 5 2 Address Setup Procedure 5 3 Setting up the Signal Generator on the IEEE 488 bus requires only a choice of address and connection to a controller The address is set at the Fluke factory to 2 To change the Signal Generator address proceed as follows Enter sec 1 o to display the current IEEE 488 address The address is shown in the FREQUENCY display field and the talker listener mode is shown in the AMPLITUDE display field For example EXAMPLE EXPLANATION Addr 01 Normal mode with address of 1 Addr 12 to Talk only mode
43. OFF Retrieves the state of the RF OUTPUT port Adjusts the phase of the RF carrier Retrieves the relative phase adjustment Programs the measured phase adjustment clock frequency Retrieves the phase adjustment clock frequency Zeros the relative phase adjustment AMPLITUDE MODULATION AM AM EXTAC_AM EXTAC_AM EXTDC_AM EXTDC_AM INT_AM INT_AM Programs the AM depth Retrieves the AM depth Turns external ac coupled AM ON or OFF Retrieves the state of external ac coupled AM Turns external dc coupled AM ON or OFF Retrieves the state of external dc coupled AM Turns internal AM ON or OFF Retrieves the state of internal AM REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 1 Remote Command Summary cont FREQUENCY AND PHASE MODULATION EXTAC_FM EXTAC_FM EXTDC_FM EXTDC_FM FM FM FM_RANGE FM_RANGE FM_UNITS HIRATEPM HIRATEPM INT_FM INT_FM LORATEFM LORATEFM PULSE MODULATION EXT_PULSE EXT_PULSE INT_PULSE INT_PULSE Turns external ac coupled FM OM ON or OFF Retrieves the state of external ac coupled FM OM Turns external dc coupled FM or M ON or OFF Retrieves the state of external dc coupled FM or OM Programs the FM OM deviation Retrieves the FM OM deviation Selects normal low distortion or fixed range FM Retrieves the state of low distortion ixed range FM Converts the FM display to specified units Turns high rate OM mode ON or OFF Retrieves the state of high rate OM mode Turns internal
44. OPERATION MODULATION 4C 16 Setting Pulse Width 4C 27 When the modulation oscillator is configured as a variable width pulse generator any pulse width in the valid range may be entered using a Special Function command from the front panel or the PULSE_WIDTH command from Remote The pulse width will be specified with 0 1 us resolution over its entire range of values Entering sex 7 s 9 displays the current pulse width in the FREQUENCY display field with 0 1 us resolution followed by a question mark prompt which indicates that a new pulse width can be entered The characters pS are displayed in the AMPLITUDE display field to clarify that this is the pulse width entry even though it is displayed in the FREQUENCY display field If the entered pulse width is longer than the pulse period 1 Mod Frequency the STATUS annunciator is flashed and the pulse width is set to 0 1 us less than the pulse period PULSE WIDTH RANGE RESOLUTION 0 1 us to 99 9999 ms 0 1 us SYNTAX Ls 2_ numeric data NOTE The pulse width is always displayed with microsecond units Pulse width entries are terminated with one of the following microsecond units millisecond units second units EXAMPLE Program a pulse width of 100 0 us FRONT PANEL Enter Lee 7 Q C The current pulse width is displayed in the FREQUENCY display field with a question mark prompt 10 0000 US current setting is 100
45. On EMF Mode Relative Amplitude 5D 17 The following HP8642 Relative Amplitude commands are emulated RZ Turn On Relative Amplitude Mode RF Turn Off Relative Amplitude Mode The following commands are not emulated RS lt value gt Set Reference to a Specific Amplitude RSON Set Reference to Last Selected Reference RSOF Turn Off Reference Amplitude Amplitude Sweep 5D 18 The 6080A 82A does not emulate the HP8642 Amplitude Sweep capability Therefore the commands in Table 5D 10 are not emulated AM Pulse Modulation 5D 19 The 6080A 82A fully emulates the HP8642 AM and Pulse modulation functions FM M 5D 20 The 6080A 82A does not support independent instances of pM and FM parameters As a result a displayed FM deviation will be converted to its equivalent oM deviation and vice versa if the complimentary parameter is selected Apart from this the 6080A 82A emulates the HP8642 FM and M modulation functions except the commands in Table 5D 11 5D 17 REMOTE OPERATION COMPATIBILITY LANGUAGE 5D 18 Table 5D 10 Amplitude Sweep Commands That Are Not Emulated COMMAND DESCRIPTION AA lt value gt Set Amplitude Sweep Start Point AAON AAOF Turn On Off Start Amplitude AAKL AAKR Start Amplitude Cursor Left Right AAIS lt value gt Start Amplitude Increment Set AAUP AADN Start Amplitude Increment Up Down AB lt value gt Set Amplitude Sweep Stop Point ABON ABOF Turn On Off Stop Amplitude ABKL ABKR S
46. Parameter query always generates a 0 response The OL Output Hi Low Status query is fully emulated as is the OA Output Active Function query As there are significant hardware differences between the 6080A 82A and the HP8642 the 6080A 82A emulation of the OH Output Hardware Error command is as follows if a 6080A 82A hardware error or out of lock condition is detected a Fluke Specific Error Code is generated You can then press the front panel key to determine the specific 6080A 82A hardware problem The HP8642 actions for Device Clear Selected Device Clear and Local Lockout are emulated in the 6080 The HP8642 Service Request generation and clearing setting of the RQS mask is emulated Bits 0 and 7 of the Status Byte End of Sweep and Parameter Changed are always 0 if the corresponding bits of the RQS mask are set no SRQ is generated HP8642 Commands Not Emulated 5D 11 In the HP8642 emulation mode the 6080A 82A interprets the entire HP8642 command set though some commands are not emulated and cause no change to the 6080A 82A instrument state When any of the commands in Table 5D 7 are received error message 4098 HP CMD NOT EMULATED is generated RF Output Frequency 5D 12 The HP8642 RF Frequency Programming capability is emulated except for the commands in Table 5D 8 5D 13 REMOTE OPERATION COMPATIBILITY LANGUAGES 5D 14 4001 4002 4002 4002 4002 4002 4002 4002 4002 4002 4002 4
47. Query Error QYE or an Execution Error EXE If a DDE occurs as the result of executing a command it means that the command was formed properly and contained valid parameters but some error condition arose during execution which prevented the command from completing properly An example of a Device Dependent Error is error 90 CAL COMP switch not set to 1 on which can occur when a calibration or compensation procedure is requested The command ERROR fetches the earliest error in the error queue which contains error codes for the first 15 errors that have occurred Query error The Signal Generator was addressed to talk when no response data is present in the output queue and the instrument is not generating any response data via execution of a query When a query error occurs the Signal Generator clears the output queue sets the QYE bit in the ESR register and logs one of the four following error codes into the error queue ac cording to the type of query error encountered Error 78 IEEE 488 2 UNTERMINATED Command The unterminated command query error occurs when the controller attempts to read data from the Signal Generator s output queue without having first sent a valid query to the instrument In this condition the Signal Generator has nothing present in the output queue and is not in the process of generating a response to a query Thus the instrument cannot respond to the controller s request for data Figure 5A 3 Bi
48. Query uncal status Query software version Edit amplitude Edit current bright digit field Edit FM deviation Edit frequency Edit modulation frequency Edit modulation level Edit AM depth Step down amplitude Program amplitude step Step up amplitude Position mod freq bright digit Step down modulation freq Erase nonvolatile memory Program modulation frequency Program modulation freq step Program modulation level Program mod freq to 400 1000 Hz Start manual sweep operation Step up modulation freq Position mod level bright digit Step down modulation level Program modulation level step Step up modulation level Output I O DAC Position AM bright digit Step down AM depth Disable enable external pulse Program carrier phase adjustment Disable enable internal pulse Program phase clock frequency Program AM step Step up AM depth Program mod osc pulse width Zero relative phase adjustment Disable enable relative ampl REMOTE OPERATION COMPATIBILITY LANGUAGES Table 5D 3 Compatibility Language Commands cont COMPATIBILITY 6070 amp 6060 amp COMMAND DESCRIPTION 6071 6061 Query I O byte Recall memory location Disable enable relative freq Turn RF output off on Query I O word Step down Set secure mode Select sweep field Program freq sweep increment Set service request enable Stop sweep
49. REMOTE SWEEP_SYM ASYM 5 Select 100 ms sweep swell time FRONT PANEL CJ GJ REMOTE SWEEP_DWELL 100 MS 6 Enable auto sweep FRONT PANEL REMOTE SWEEP AUTO 4E 9 FRONT PANEL OPERATION SWEEP CALIBRATING A RECORDER OR OSCILLOSCOPE 4E 14 To calibrate an X Y plotter recorder or oscilloscope to the Signal Generator X axis sweep DAC output and the blanking pen lift signals use the following procedure 1 Set the X axis output to 0 volts Enable manual sweep and turn the edit knob to the start frequency F1 or the start amplitude A1 2 Set the X axis output to 10 volts Enable manual sweep and turn the edit knob to the end frequency F2 or the end amplitude A2 The blanking pen lift signal is maintained low for the above conditions it is maintained high if no sweep is active ANALOG FREQUENCY SWEEP 4E 15 It is possible to configure the Signal Generator FM circuitry to perform an analog frequency sweep that is symmetric about the RF output frequency This mode is entirely controlled by the programmed modulation parameters and is not related to the synthesized digital sweep Three parameters must be configured to perform an analog frequency sweep The sweep rate determined by the modulation frequency At lower modulation frequencies it may be necessary to enable Low Rate FM or External DC FM See Section 4C Modulation for more information The programmed FM deviation one half of t
50. RF output is off the RF OFF annunciator is lit The amplitude setting when the RF is turned off is restored when the output is turned on again The displayed amplitude is not changed when the output is turned off SYNTAX FRONT PANEL REMOTE Turn On RF Output RF OUTPUT RFOUT ON RF OFF annunciator on Turn Off RF Output RF OUTPUT RFOUT OFF RF OFF annunciator off RF OUTPUT AMPLITUDE BANDS 4B 9 Amplitude settings for the Signal Generator are achieved by cascading the RF output through a series of attenuators for coarse control and through a DAC for vernier control The attenuator series consists of a single 6 dB section a single 12 dB section and five 24 dB sections When Amplitude Modulation AM is enabled the amplitude band switch points are shifted down by 3 dB frequencies lt 1056 MHz or if frequency sweep is enabled in Model 6082A or 6 dB frequencies gt 1056 MHz 6082A only Table 4B 2 lists the Signal Generator amplitude band divisions of the in dBm units Table 4B 2 RF Output Amplitude Bands AMPLITUDE RANGE IN dBm Tamer anemones am ogmtn i FRONT PANEL OPERATION RF OUTPUT AMPLITUDE Table 4B 2 RF Output Amplitude Bands cont AMPLITUDE RANGE IN dBm OOOO MoE AM ON f lt 1056 MHz AM ON f21056 MHz USING RF OUTPUT AMPLITUDE FIXED RANGE MODE 4B 10 When enabled Amplitude Fixed Range mode fixes the setting of the attenuators at the given output level This allows monotonic and nontransient level
51. Responses Example EXPLAIN Description Parameter Response Example EXT_PULSE Description Parameter Restrictions EXT_PULSE Description Parameter Response EXTAC_AM Description Parameter Restrictions REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Retrieves the byte from the Event Status Register and clears the register The ESR is described under Checking the Instrument Status None integer Decimal equivalent of the register byte ESR Returns 140 if bits 2 QYE 3 DDE and 7 PON are set 1 and the rest of the bits are reset 0 See Checking the Instrument Status for details Retrieves the elapsed time This gives the time with tenths of hours resolution that the Signal Generator has been in operation since it was manufactured None 1 Float Total number of hours the instrument has been operating 2 String HRS 5058 7 HRS Explains a status error code This command returns a string which is the explanation of the status or error code furnished as the parameter The controller will most likely obtain the code via the STATUS or ERROR query Refer to Appendices C D and E for a list of status and error codes The error status code to explain String The explanation of the code EXPLAIN 1 Returns Frequency out of range Turns external pulse modulation On or Off ON or OFF or 1 or 0 Rej
52. TE SAE SRE Ae ORE EN a OOE a NRT TT NCE E NOOT PEROSA OME CEN E OMEN pith cst A EERO OEO SA LEO AEE AE REONE E EEE EIEE I EEEE ESOSI IALO A EE AEE REE REMOTE OPERATION REMOTE COMMAND TABLES INT_AM Description Parameter Restrictions INT_AM Description Parameter Response INT_FM Description Parameter Restrictions INT_FM Description Parameter Response INT_PULSE Description Parameter Restrictions INT_PULSE Description Parameter Response ISCE Description Parameter Example Table 5B 3 Remote Commands cont Turns internal AM On or Off ON or OFF or 1 or O Rejected during single sweep Retrieves the state of internal AM None String ON or OFF Turns internal FM OM On or Off ON or OFF or 1 or 0 Rejected during single sweep Retrieves the state of internal FM OM None String ON or OFF Turns internal pulse modulation On or Off ON or OFF or 1 or 0 Rejected during single sweep Retrieves the state of internal pulse modulation None String ON or OFF Loads a byte into the Instrument Status Change Enable register described under the Checking the Instrument Status The decimal equivalent of the binary number to load into the register ISCE 56 Enables bits 3 RPP 4 FM LO and 5 FM Hl in the Service Request Enable register ISCE Description Parameter Response Example ISCR Description
53. The CL command clears the output queue turns sweep and cal comp procedures off clears the trigger buffer REMOTE OPERATION COMPATIBILITY LANGUAGES 5D 10 clears errors turns the RF output on and initializes the serial poll register enable and memory dividers A programming message syntax is defined by the IEEE 488 2 standard There must be white space between the header and the numeric This is not the case in the compatibility language For example FM100HZ is valid in the compatibility language but FM 100HZ is required in the 6080 language Table 5D 3A Commands not in 6060 or 6070 Compatibility Language COMMAND IN INSTRUMENT DESCRIPTION 6070 amp 6060 amp 6071 6061 Enable disable bright digit Compensation mod meter reading Compensation commands Compensation write level error Delete memory location Define port address for output Define memory top Compensation interrogate Compensation get HET adj Interrogate error log Insert memory location Compensation get memory status Learn interface Learn memory Output I O bit Output count for OM command Output multiple I O bits Set record mode Slow sweep Set unbuffered interface mode Set valid interface mode Program subsynthesizer freq REMOTE OPERATION COMPATIBILITY LANGUAGE In the compatibility language string terminators are defined to be comma and semicolon and are optio
54. When Low Rate FM is enabled lower modulation rates may be applied Low Rate FM mode is enabled with a Special Function command from the front panel or with the LORATEFM command in remote Although the mode is enabled the FM circuitry is not set to the low rate configuration unless internal FM or external FM is also enabled Enabling this function does not affect the circuitry if the Signal Generator is programmed for phase modulation When the low rate FM mode is enabled the SPCL annunciator in the FREQUENCY display field is lit The LO RATE annunciator in the MODULATION display field is lit when internal or external FM is enabled SYNTAX FRONT PANEL REMOTE Turn Low Rate FM Off CJ Co LORATEFM OFF Turn Low Rate FM On GIGI LORATEFM ON 4C 13 FRONT PANEL OPERATION MODULATION 4C 14 Using High Rate 4M Mode 4C 22 The high rate 6M mode trades higher modulation rates up to 100 kHz for less phase modulation deviation Up to 40 radians of phase deviation are allowed in this mode High Rate M mode is enabled with a Special Function command from the front panel or with the HIRATEPM command in remote When the high rate 6M mode is enabled the SPCL annunciator in the FREQUENCY display field is lit SYNTAX FRONT PANEL REMOTE Disable High Rate M 2 Co HIRATEPM OFF Enable High Rate 6M Cr Ge HIRATEPM ON PULSE MODULATION 4C 23 External and internal pulse modulation are supported in the Signal Generator Both internal an
55. a device dependent or common query REMOTE OPERATION REMOTE PROGRAMMING Table 5A 5 Interface Messages that the Signal Generator Sends A message that occurs when the Signal Generator asserts the EOI control line The Signal Generator asserts EOI while it transmits the ASCII character LF for its termination sequence or terminator Data Accepted Sets the handshake signal line NDAC low Data Valid Asserts the handshake signal line DAV Ready for Data Sets the handshake signal line NRFD low Service Request Acontrol line that any device on the bus can assert to indicate that it requires attention Refer to Checking Signal Generator Status for details Status Byte The Status Byte is what the Signal Generator sends when it responds to a serial poll interface message SPE THE IEEE 488 CONNECTOR 5A 38 The IEEE 488 connector on the rear panel mates with an IEEE 488 Standard cable The pin assignments of the rear panel IEEE 488 connector are shown in Figure 5A 5 The IEEE 488 Interface signal SHIELD pin 12 can be disconnected when using an IEEE 488 cable without a metallic hood from the instrument ground To do this use the SHIELD switch The following restrictions apply to all IEEE 488 systems 1 A maximum of 15 devices can be connected in a single IEEE 488 bus system 2 The maximum length of IEEE 488 cable used in one IEEE 488 system is the lesser of either 20 meters or 2 meters times the number of devi
56. a sweep is active the entry is rejected SYNTAX FRONT PANEL REMOTE Select Symmetric Sweep Co SWEEP_SYM SYMM Select Asymmetric Sweep CO SWEEP_SYM ASYM SETTING SWEEP DWELL TIME 4E 5 The time that an active auto or single sweep dwells at each discrete frequency or amplitude in the sweep range can be adjusted This dwell time is in addition to the nominal switching time for frequency and amplitude One of six different minimum dwell times can be selected with a Special Function command from the front panel or with the SWEEP DWELL command in remote The selected dwell time remains in effect for all subsequent sweep modes SYNTAX FRONT PANEL REMOTE Select 0 ms Dwell C3 C2 SWEEP_DWELL 0 MS Select 20 ms Dwell CJJ SWEEP_DWELL 20 MS Select 50 ms Dwell EER SWEEP_DWELL 50 MS Select 100 ms Dwell CJJ SWEEP_DWELL 100 MS Select 200 ms Dwell IC SWEEP_DWELL 200 MS Select 500 ms Dwell CJ Ce SWEEP_DWELL 500 MS Select 1s Dwell E SWEEP_DWELL 1 S Select 2s Dwell EJ CJ SWEEP_DWELL 2 S Select 5s Dwell SWEEP_DWELL 5 S Select 10s Dwell EJ Ce SWEEP_DWELL 10 S 4E 3 FRONT PANEL OPERATION SWEEP 4E 4 FREQUENCY SWEEP 4E 6 The Signal Generator allows digital frequency sweep between any two valid frequencies with a resolution of 1 Hz per increment Four parameters define the sweep The RF output frequency in effect before the sweep is enabled becomes the center frequency if symmetric sweep is selected or the start frequency if asymmetric s
57. access 6080A 82A functions not supported in a compatibility language you can intersperse 6080 commands with compatibility commands by inserting appropriate GAL commands 5D 1 REMOTE OPERATION COMPATIBILITY LANGUAGES 5D 2 When you use GAL in an application program your program must pause approxi mately 500 ms after sending the GAL command before sending commands in the new language The 6080A 82A requires this amount of time to reconfigure its character handshake mode to that of the alternate language USING THE 6060 AND 6070 FAMILY LANGUAGES 5D 3 Once you have set the Signal Generator so that the 6060 or 6070 remote language is active the Signal Generator is ready to operate in an existing 6060 or 6070 family system but with some minor restrictions and differences Read the following text to help you decide whether to make program modifications and what to modify Incompatibilities 5D 4 Most of the operations are identical to the 6060 and 6070 signal generators when using the compatibility language A few minor differences do exist and are described in the following paragraphs The instrument limits and specifications are those of the 6080A 82A For example the frequency limits are 10 kHz to 1056 MHz for the FR command even though the 6070A frequency limits are 200 kHz to 520 MHz The timing of programming and data transfer on the IEEE 488 bus will not be the same The 6080A 82A will generally be faster than the 6060 fami
58. amplitude SETTING RF OUTPUT AMPLITUDE 4B 2 The RF output amplitude can be controlled with the FUNCTION DATA UNIT entry sequence The amplitude display is fixed point for dBm and dB units and is floating point for voltage units The selected unit is retained until a numeric entry is terminated with the alternate unit the display units are converted or an alternate dB unit is selected by Special Function Pressing the function key moves the bright digit to the AMPLITUDE display field and places the Signal Generator in the RF amplitude entry mode RF AMPLITUDE RANGE RESOLUTION 147 to 20 dBm 0 1 dB 10 nV to 2 24 V 3 digits 0 01 dB over IEEE bus SYNTAX Numeric Data Bag EXAMPLE Set Amplitude to 7 5 dBm FRONT PANEL CJJ REMOTE AMPL 7 5 DBM FRONT PANEL OPERATION RF OUTPUT AMPLITUDE CONVERTING RF OUTPUT AMPLITUDE UNITS 4B 3 You can convert displayed RF output amplitude quantity from dBm units to voltage units or from voltage units to dBm units by selecting the Amplitude function then pressing the desired unit key The output of the Signal Generator does not change during these operations The display units remain in effect until a numeric entry is terminated with an alternate unit or the display units are converted by reversing the procedure AMPLITUDE UNITS CONVERSION V 10 98 13 0 20 0 dBm 13 0 20 0 logio V SYNTAX TOCONVERT FRONT PANEL REMOTE dBm to Volts AMPL_UNITS V Volts t
59. are not allocated in decades Hidden parameter Special Functions let you display and modify Signal Generator parameters not normally displayed on the front panel These Special Functions are used primarily when a parameter is programmable to a wide range of values When you select a hidden parameter Special Function the instrument displays the current value 4F 1 FRONT PANEL OPERATION SPECIAL FUNCTIONS of the parameter with a question mark prompt You have a brief period of time in which to enter a new value If you do not enter a new value the display returns to normal format and the parameter is unchanged Table 4F 1 lists Special Function codes by action Appendix B list all Special Function codes Table 4F 1 Special Function Codes REMOTE LIGHTS SPCL SPECIAL FUNCTION DESCRIPTION COMMAND ANNUNCIATOR WHEN ENABLED FREQUENCY Relative frequency mode 20 21 FREQ_REL Enable phase adjustment 701 PHASE Zero phase adjustment 702 PHASE_ZERO External reference input frequency 760 761 EXTREF_FREQ Low noise external reference 950 951 LOWNOISE AMPLITUDE Relative amplitude mode 30 31 AMPL_REL Fixed range amplitude 50 51 AMPL_RANGE Amplitude display units 840 843 AMPL EMF Volts amplitude display mode 850 851 AMPL_EMFOUT MODULATION Modulation oscillator output MODOUT Enter modulation frequency to 0 1 Hz MODF Low rate FM 710 711 LORATEFM High rate M 720 721 HIRATEPM Low distortiondixed range FM 730 732 FM_RANGE Internal pulse modula
60. be read from the error queue using the ERROR query One or more enabled ISCR bits are 1 Status available Status codes have been loaded into the status queue and are available to be read from the queue using the STATUS query Figure 5A 2 Bit Assignments for the STB and SRE SERVICE REQUEST LINE SRQ 5A 18 Service Request SRQ is an IEEE 488 1 bus control line that the Signal Generator asserts to notify the controller that it requires some type of service Many instruments can be on the bus but they all share a single SRQ line To determine which instrument set SRQ the controller normally does a serial poll of each instrument The Signal Generator asserts SRQ whenever the RQS bit in its Serial Poll Status Byte is 1 This bit informs the controller that the Signal Generator was the source of the SRQ The front panel SRQ annunciator is lit whenever the Signal Generator asserts SRQ The Signal Generator clears SRQ and RQS whenever the controller performs a serial poll of the Signal Generator IEEE 488 interface sends CLS or whenever the MSS bit is cleared The MSS bit is cleared only when ESB MAV EAV ISCB and SAV are 0 or when they are disabled by their associated enable bits in the SRE register being set to SERVICE REQUEST ENABLE REGISTER SRE SA 19 The Service Request Enable Register SRE enables or masks the bits of the Serial Poll Status Byte The SRE is stored in non volatile memory and is restored to its power off v
61. cannot be stored Cal comp data range error too much correction Command not allowed during current cal comp procedure Command only allowed with appropriate cal comp procedure Internal cal comp data transfer error Stored cal comp memory contains invalid data MEC PROM ID code invalid or MEC PROM checksum error Sum loop compensation procedure failed Coarse loop compensation procedure failed C 3 C 4 Appendix D Overrange Uncal Status Codes Appendix D Overrange Uncal Status Codes STATUS CODE DESCRIPTION UNSPECIFIED OPERATION HARDWARE LIMITED Level DAC at 0 Amplitude fixed range Level DAC at max Amplitude fixed range FM DAC at 0 FM fixed range FM DAC at max FM fixed range FM out of range for RF frequency band Mod frequency too low for pulse mode Pulse width gt 1 mod frequency HARDWARE FAULT RPP tripped ALC loop unleveled or AM overmodulation Sub synthesizer unlocked Coarse loop unlocked Sum loop unlocked Sum loop unleveled Reference unlocked FM loop unlocked or FM overmodulation DCFM DAC at 0 DCFM DAC at max Multiple calibration compensation memory errors Level correction disabled High stability reference oven cold NOTE Flashing codes denoted by indicate abnormal operation or aberrated output Non flashing codes indicate operation outside specified range Appendix E Self Test Status Codes Appendix E Self Test Status Codes STATUS CODE DES
62. control over a limited range around those levels where the attenuators are normally reranged Fixed range mode is enabled using a Special Function command from the front panel pass or with the AMPL_RANGE command in remote The SPCL annunciator is lit when fixed range mode is enabled Fixed range level control remains in effect only during Bright Digit Edit of the AMPLITUDE display field Other methods of changing the output cause the attenuators to rerange if necessary Changing the RF output frequency initiating an RF amplitude sweep or enabling disabling AM will also cause the attenuators to rerange The level vernier in fixed range mode has a specified accuracy range of 12 dB around the point at which fixed range mode is enabled If an attempt is made to edit the amplitude value beyond the range of the vernier the STATUS annunciator flashes and the output level is not guaranteed SYNTAX FRONT PANEL REMOTE Disable Fixed Range Cs eg AMPL_RANGE NORMAL Enable Fixed Range Cs jC AMPL_RANGE FIXED EXAMPLE Set the Signal Generator for monotonic and nontransient amplitude control Bright Digit Edit only over the range of the vernier level control below 0 25V FRONT PANEL CJJ GJ SJA REMOTE AMPL 0 25 V AMPL_RANGE FIXED 4B 7 sn th lA AO NARRE FRONT PANEL OPERATION RF OUTPUT AMPLITUDE USING ALTERNATE OUTPUT COMPENSATION MODES 4B 11 Alternate output compensation modes are available on the Signal Generator Normally a fac
63. digit to the FREQUENCY display field and places the Signal Generator in the RF output frequency entry mode RF FREQUENCY RANGE RESOLUTION 6080A 0 01 to 1056 1 Hz 6082A 0 1 to 2112 MHz 1Hz SYNTAX Numeric Data Hz pv EXAMPLE Set RF Frequency to 10 7 MHz FRONT PANEL Free 1 C CO 7_ ray REMOTE FREQ 10 7 MHZ FRONT PANEL OPERATION RF OUTPUT FREQUENCY SETTING RF OUTPUT FREQUENCY STEP SIZE 4A 3 You can change the magnitude of the RF output frequency by programmable step using the A and 7 keys The default step size is 10 MHz View the current set step size by holding down ster the step size shows on the display To change this step size and save your change in non volatile memory proceed as follows 1 Press followed by 2 Enter the data for step size using the DATA keys 3 Press MHziv or kHzimv to give the data its absolute value The value you have selected is held momentarily in the FREQUENCY display field RF FREQUENCY RANGE RESOLUTION 6080A 0 01 to 1056 MHz 1 Hz 6082A 0 1 to 2112 MHz 1 Hz SYNTAX Numeric Data EXAMPLE Set RF Frequency Step Size to 103 kHz FRONT PANEL OUI REMOTE FREQ_STEP 103 KHZ USING RF OUTPUT FREQUENCY RELATIVE MODE 4A 4 The RF output frequency relative mode is useful for establishing a reference frequency and then changing the output relative to that reference Setting a reference is done by programming the RF output frequency to the desir
64. enabled Each table is a two dimensional matrix the column entries represent RF output frequency bands and the row entries represent each FM band Each box lists the FM deviations that correspond to the upper and lower limits for that intersection of FM band and RF output frequency band Table 4C 2 FM Band Limits FREQUENCY BAND MHz 1056 2112 6082A 8 00 MHz 4 00 MHz 2 00 MHz 1 00 MHz 500 kHz 250 kHz 125 kHz 2 01 MHz 1 01 MHz 501 kHz 251 kHz 126 kHz 62 6 kHz 31 3 kHz 2 00 MHz 1 00 MHz 500 kHz 250 kHz 125 kHz 62 5 kHz 31 2 kHz 501 kHz 251 kHz 126 kHz 62 6 kHz 31 3 kHz 15 7 kHz 7 82 kHz 500 kHz 250 kHz 125 kHz 62 5 kHz 31 2 kHz 15 6 kHz 7 81 kHz 126 kHz 62 6 kHz 31 3 kHz 15 7 kHz 7 82 kHz 3 91 kHz 1 96 kHz 125 kHz 62 5 kHz 31 2 kHz 15 6 kHz 7 81 kHz 3 90 kHz 1 95 kHz 31 3 kHz 15 7 KHz 7 82 kHz 3 91 kHz 1 96 kHz 977 Hz 489 Hz 31 2 kHz 15 6 kHz 7 81 kHz 3 90 kHz 1 95 kHz 976 Hz 488 Hz 7 82 kHz 3 91 kHz 1 96 kHz 977 Hz 489 Hz 245 Hz 123 Hz 7 81 kHz 3 90 kHz 1 95 kHz 976 Hz 488 Hz 244 Hz 122 Hz 0 Hz 0 Hz 0 Hz 0 Hz 0 Hz 0 Hz 0 Hz FRONT PANEL OPERATION MODULATION Table 4C 3 FM Band Limits Low Distortion Mode FREQUENCY BAND MHz 1056 2112 6082A 512 1056 64 128 Het 8 00 MHz 4 00 MHz 2 00 MHz 1 00 MHz 500kHz 250 kHz 125 kHz 2 01 MHz 1 01 MHz 501 kHz 251 kHz 126 kHz 62 6 kHz 31 3 kHz 2 00 MHz 501 kHz 1 00 MHz 251 kHz 500 kHz 126 kHz
65. in volts This also includes all limits to the amplitude values The unterminated output mode has no effect if the displayed quantity has units of dBm or dBf To select the Unterminated Output Display mode from the front panel use a Special Function To select the mode in remote use the AMPL_EMFOUT command Enabling this mode has no effect on the Signal Generator output The EMF units are retained when changing to or from voltage units and remain in effect for any Amplitude entry based on a voltage unit Disabling this mode may change the Signal Generator output since resolution may be lost For example an RF output amplitude of 201 mV programmed when in the unterminated output mode will be converted to 100 mV not 100 5 mV when the mode is disabled EMF UNITS CONVERSION EMF dBmV dBmV 6 dBmV gi EMF dBuV dBuV 6 dBpV EMF V 2 V SYNTAX FRONT PANEL REMOTE Normal Amplitude Cs jCo AMPL_EMFOUT OFF Display Mode Unterminated Output Ce jo AMPL_EMFOUT ON Display Mode 4B 3 FRONT PANEL OPERATION RF OUTPUT AMPLITUDE SETTING RF OUTPUT AMPLITUDE STEP SIZE 4B 6 The RF output amplitude step size can be selected for entry by pressing the amet key followed by the key As long as the key is pressed the step size is displayed Upon entering a new step size the value is held momentarily in the AMPLITUDE display field Step Increment Decrement operations are rejected unless the units of the amplitude and amplitude step match
66. minimum of 12 times taking about 5 seconds to complete The number of repetitions may increased to a maximum of 99 using Special Function 828 or the remote command ERASE_RPT Table 4D 3 shows parameters that are erased Table 4D 4 shows parameters that are preserved After affected parameters are cleared to 0 they are reset to factory default values If any byte fails verification nonvolatile memory and the current instrument state are set to factory default values the message ErASE Err is flashed on the display an execution error is posted secure mode is disabled and the display is enabled Table 4D 3 Erased Parameters Memory dividers Memory protection status Front panel key repeat rate Alternate output correction data Relative frequency status base and offset Relative amplitude status base and offset Trigger buffer Protected user data PUD buffer SRE ESE ISCE Instrument state memory locations 00 50 96 99 Blank RF output during frequency range change setting DCFM DAC used in high deviation ranges DCFM DAC used in low deviation ranges Sweep active status Table 4D 4 Preserved Parameters Operating time Attenuator log Serial number IEEE address IEEE mode IEEE language Rear output option status Phase clock frequency Alternate reference frequency selection Calibration and compensation data Low noise external reference frequency selection Erase repeat count FRONT PANEL OPERATION INST
67. oM step units conversion not allowed MOD FREQUENCY MOD LEVEL Mod frequency out of range Mod frequency step size out of range Mod level out of range Mod level step size out of range Pulse width out of range Sweep field Freq Ampl cannot be changed while sweeping Sweep cannot be enabled with current sweep parameters Entry conflicts with active sweep Selected function not allowed while sweep is active Amplitude sweep with mixed units not allowed Selected function not allowed unless sweep is active REJECTED ENTRY ERROR CODES Appendix C Rejected Entry Error Codes cont ERROR CODE DESCRIPTION SPECIAL FUNCTION AND MEMORY Special function code invalid Memory location number invalid Memory location data invalid Store operation not allowed when memory locked Display ON not allowed when Secure ON Nonvolatile memory erase failed IEEE address must be lt 30 IEEE invalid edit or step IEEE invalid command IEEE bad command syntax IEEE bad argument value IEEE bad argument type IEEE bad argument count IEEE invalid keyword IEEE 488 2 unterminated command IEEE 488 2 interrupted query IEEE 488 2 I O deadlock IEEE error status queue overflow IEEE recursive trigger buffer not allowed IEEE command not allowed in local mode or listen only mode IEEE query after indefinite response CALIBRATION COMPENSATION CAL COMP switch not set to 1 on Cal comp adjustment out of range Cal comp procedure incomplete data
68. relative amplitude mode or with the ster SWEEP or SNEEP function modifier keys to specify units of decibels ratio lrad Used with the AM _ function key to program the parameter data in units of percentage of AM depth You also use this key with the function key to specify units of radians of M deviation CLRILCL When the Signal Generator is in local operation this key clears an entry and returns the Signal Generator to the last valid state When the Signal Generator is in remote operation this key returns local control D SWEEP ON OFF These keys enable or disable a sweep mode The keys operate as KEYS independent push on andpush off switches for the given sweep mode Enable or disable manual sweep mode The edit knob is used to move up or down within the sweep range for the selected sweep function Enable or disable auto sweep mode The Signal Generator repetitively progresses through the sweep range for the selected sweep function Q3 EDITKEYS These keys position the bright digit within a display field Both keys repeat while they are pressed lt I Moves the bright digit one digit to the left in the active display field Moves the bright digit one digit to the right in the active display field EDIT KNOB Used to increase or decrease the value of the bright digit You move the bright digit to the desired display field by pressing the one of the FUNCTION keys
69. step size with optional DB units or voltage units Rejected during manual or single sweep Retrieves the amplitude step size None 1 Float Amplitude step size 2 String DB V or V EMF Programs the amplitude sweep width in dB or V The default units are DB Note that a negative value will cause a sweep from a higher power level to a lower one Sweep width with optional DB units or voltage units AMPL_SWIDTH 1 820E 6 V AMPL_SWIDTH 10 2 DB AMPL_SWIDTH 2 Rejected during manual or single sweep Retrieves the amplitude sweep width None 1 Float Amplitude sweep width 2 String DB V or V EMF Converts the AMPLITUDE display to specified units DBM or V Rejected during sweep ATT_LOG Description Parameter Responses Example BRT_FIELD Description Parameter Restrictions BRT_FIELD Description Parameter Response CAL_AM Description Parameter Restrictions CAL_FM Description Parameter Restrictions CAL_LEVEL Description Parameter Restrictions REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Retrieves the attenuator log None Integer A6 attenuator count Integer A12 attenuator count Integer A24A attenuator count Integer A24B attenuator count Integer A24C attenuator count Integer A24D attenuator count Integer A24E attenuator count 1470 1180 641 627 607 587 577
70. than 10 kHz Fixed frequency spurious signals are lt 100 dBc or lt 140 dBm whichever is greater Harmonics lt 30 dBc for amplitudes less than 13 dBm Subharmonics None Power Line Spurious Signals offsets less than 10 kHz lt 56 dBc Residual FM NOTE 1 FREQUENCY RESIDUAL FM BAND MHz 0 3 to 3 kHz 50 Hz to 15 kHz 0 01 to 15 15 to 32 32 to 64 64 to 128 128 to 256 256 to 512 512 to 1056 SSB Phase Noise NOTE 1 CARRIER OFFSET FREQUENCY FREQUENCY 1 kHz 20 kHz 100 kHz BAND MHz dBe Hz dBc Hz dBc Hz 0 01 to 15 15 to 32 32 to 64 64 to 128 128 to 256 256 to 512 512 to 1056 Residual AM 50 Hz to 15 kHz Band lt 01 80 dBc NOTE 1 Allowable operating modes CW AM FM peak dev lt 1 5 of max in operating band M same comment as FM Pulse 1 6 INTRODUCTION AND SPECIFICATIONS Table 1 1 Specifications for Model 6080A cont AMPLITUDE MODULATION Depth Range 0 to 99 9 for RF output level lt 10 dBm AM Resolution 0 1 AM Display 3 digits AM Accuracy 2 4 of setting for rate 1 kHz and depth lt 90 AM Distortion Rate 1 kHz NOTE 2 lt 1 5 THD to 30 AM lt 3 THD to 70 AM lt 5 THD to 90 AM AM 3 dB Bandwidth NOTE 2 AC coupled AM 20 Hz to 50 kHz DC coupled AM dc to 50 kHz Incidental M lt 0 20 radian at 1 kHz rate and 30 AM FREQUENCY MODULATION NOTE 3 FM Display Ranges 0 to 999 Hz Dev 1 Hz Resolution and Resolution 1 to 9 99 kHz D
71. the RF frequency and amplitude and to turn the RF output on Common Commands The IEEE standard 488 2 defines common commands which are used for functions common to most bus devices Examples include the command for resetting a device RST and the query for device identification IDN Common commands and queries can be identified easily because they all begin with an asterisk Interface Messages The IEEE standards define interface messages which manage the interface system Some of the interface messages have their own control lines and others are sent over the data lines by first asserting the control line ATN Attention The IEEE 488 hardware within the controller handles interface messages not the user or application program For example when a programming command is sent to the Signal Generator the controller automatically sends the interface message MLA My Listen Address Definition Queries and Commands 5A 35 Messages directed to the Signal Generator fall naturally into two categories commands and queries Commands both common commands and device dependent commands instruct the Signal Generator to do something or to set a value no response is expected Queries generally ask for information from the Signal Generator and do not set a value or instruct the instrument to do something a response is always expected Some queries also require the Signal Generator to take action For example the TST query has
72. the Signal Generator in the Mod Level entry mode The Mod Level setting has no effect on the Signal Generator RF output The Mod Level step size is selected for entry by pressing the key after selecting the Mod Level function MODULATION LEVEL RANGE RESOLUTION 0 0 to 4 00 V 3 digits MODULATION LEVEL STEP SIZE RANGE RESOLUTION 0 0 to 4 00 V 3 digits SYNTAX Modulation Level numeric data Modulation Level Step Size numeric data EXAMPLE 1 Set Modulation Level to 1 41 v FRONT PANEL GUC REMOTE MODL 1 41 V EXAMPLE 2 Set Modulation Level Step Size to 1 mV FRONT PANEL C REMOTE MODL_STEP 1 MV 4C 3 FRONT PANEL OPERATION MODULATION 4C 4 Enabling and Disabling Modulation Output 4C 5 Output of the internal modulation oscillator signal through the MOD OUTPUT connector on the front panel may be enabled and disabled Note that the internal modulation signal is normally output through this connector even though all internal modulation is off To disable the modulation output use a Special Function from the front panel or the MODOUT command in remote The SPCL annunciator is lit when the modulation output is disabled SYNTAX FRONT PANEL REMOTE Disable Modulation Output JO MODOUT OFF Enable Modulation Output C ba MODOUT ON Selecting the Internal Modulation Waveform 4C 6 The Signal Generator internal modulation oscillator is capable of producing a variety of output waveforms These waveform
73. the new sweep range or increment takes effect immediately With the exception of stepping the center amplitude during manual sweep these parameters cannot be displayed or changed during manual or single sweep The center amplitude sweep width and sweep increment must all have consistent units dB or volts If these parameters have inconsistent units the amplitude sweep will be rejected when a sweep mode auto manual or single is enabled Likewise the units of the sweep parameters may not be converted while amplitude sweep is active A sweep in relative mode is possible by enabling relative amplitude mode before entering a sweep However relative mode may not be enabled or disabled while a sweep is active The maximum sweep width in either logarithmic or linear mode is restricted to 20 dB approximately a 10 1 ratio Furthermore when in linear mode the ratio of the maximum output voltage in the amplitude sweep to the sweep increment cannot exceed 999 4E 7 FRONT PANEL OPERATION SWEEP Setting Amplitude Sweep Width 4E 11 The amplitude sweep width can be selected for entry by first pressing the ame key to select the AMPLITUDE display field then pressing the WEFP key When a new sweep width is programmed the value is held momentarily in the AMPLITUDE display field A negative sweep width can be entered this causes the Signal Generator to sweep in the reverse direction that is starting at the larger amplitude and pro
74. the original problem 5A 13 REMOTE OPERATION REMOTE PROGRAMMING Instrument Status Register ISR 5A 27 The Instrument Status Register ISR gives the controller access to the state of the Signal Generator including some of the information presented with the display annunciators on the front panel BIT ASSIGNMENTS FOR THE ISR ISCR AND ISCE 5A 28 The bits in the Instrument Status Register ISR Instrument Status Change Register ISCR and Instrument Status Change Enable Register ISCE are assigned as shown in Figure 5A 4 INSTRUMENT STATUS CHANGE REGISTER ISCR 5A 29 The Instrument Status Change Register ISCR indicates which ISR bits have changed status from 0 to 1 or from 1 to 0 since the ISCR was last read The ISCR is cleared set to 0 when the Signal Generator is turned on and every time it is read ae ee RRE VALID REMOTE SWEEP CALCOMP EXTREF AM HI AM LO FM HI FM LO ppp LIMIT FAULT RFOUT VALID When 1 the RF output is valid REMOTE When 1 the Signal Generator is under remote control REMOTE annunciator is lit SWEEP When 1 digital sweep is active CALCOMP When 1 the CAL COMP switch is in the 1 position EXTREF When 1 the external reference frequency is baing used EXTREF switch is in the EXT position AM HI When 1 the external AM signal is greater than 1 02V AM LO When 1 the external AM signal is less than 0 98V FM HI When 1 the external FM signal is greater than 1 02V FM LO W
75. to one model or the other Specifications of the Signal Generator are provided at the end of this section Features of the Signal Generator include the following Frequency range in Hz steps as follows 6080A 10 kHz to 1056 MHz 6082A 100 kHz to 2112 MHz Amplitude ranges as follows with 0 1 dB resolution 6080A 19 to 140 dBm for RF output frequencies below 512 MHz and 17 to 140 dBm for RF output frequencies 512 MHz and above 6082A 16 to 140 dBm for RF output frequencies below 1056 MHz and 13 to 140 dBm for RF output frequencies 1056 MHz and above Amplitude units accepted and displayed dB dBm dBf dBu V dBmV uV mV V and EMF Lo Internal and external modulation AM FM M and pulse Internal 0 1 Hz to 200 kHz direct digital synthesis modulation oscillator that provides sine square triangular and pulse waveforms Digital frequency sweep and digital amplitude sweep e Fifty storable and recallable instrument state memory locations INTRODUCTION AND SPECIFICATIONS Standard IEEE 488 GPIB Interface complying with ANSI IEEE Standards 488 1 1987 and 488 2 1987 Software compatibility modes for emulation of Fluke 6060 6070 or Hewlett Packard HP8642A B remote programming languages Closed case calibration capabilities for frequency reference AM FM and level INSTRUCTION MANUALS 1 2 The 6080A 82A Manual Set provides complete information for the operator and service or mainte
76. until all previous remote commands have been completely executed None 5B 43 5B 44 Section 5C Talk Only Listen Only Operation INTRODUCTION 5C 1 The Signal Generator can be used with any EEE 488 controller in the normal addressed mode The listen only and talk only modes are available for operation without a controller In the listen only mode the Signal Generator responds to all data messages on the IEEE 488 bus In the talk only mode the Signal Generator sends commands on the IEEE 488 bus to program another Signal Generator TALK ONLY OPERATION 5C 2 In talk only the Signal Generator outputs the step up SU and step down SD commands whenever the front panel step up and down entries are made Two Signal Generators can be set up to track in frequency with an offset by connecting one Signal Generator in talk only to another Signal Generator in listen only This is done by programming the two signal generators to the desired frequencies programming the frequency step value to be the same on both generators and pressing the step up or step down keys on the generator that is in talk only mode Note that if the step sizes are different or if the functions selected to step are different the signal generators will no longer track with the same offset Any of the six functions may be stepped frequency amplitude AM depth FM deviation modulation frequency and modulation level and the step function of the talk
77. 0 Hz Resolution 10 to 99 9 kHz Dev 100 Hz Resolution 100 to 999 kHz Dev 1 kHz Resolution 1 to 8 00 MHz Dev 10 kHz Resolution NOTE 2 AM specifications apply where RF output frequency mod frequency is greater than 150 kHz NOTE 3 FM specifications apply where RF output frequency deviation gt 150 kHz and RF output frequency mod rate gt 150 kHz INTRODUCTION AND SPECIFICATIONS Table 1 2 Specifications for Model 6082A cont Maximum Deviation MAXIMUM DEVIATION FREQUENCY BAND MHz AC COUPLED FM the smaller of DC COUPLED FM ABSOLUTE MAXIMUM RATE LIMITED MAXIMUM DEV 2 1 64 MAX DEV lt 1 64 MAX 0 01 to 15 500 kHz 500 kHz fmod x 5000 fmod x 78 15 to 32 125 kHz 125 kHz fmod x 1250 fmod x 19 32 to 64 250 kHz 250 kHz fmod x 2500 fmod x 39 64 to 128 500 kHz 500 kHz fmod x 5000 fmod x 78 128 to 256 1 MHz 1 MHz fmod x 10000 fmod x 156 256 to 512 2 MHz 2 MHz fmod x 20000 fmod x 312 512 to 1056 4 MHz 4 MHz fmod x 40000 fmod x 625 1056 to 2112 8 MHz 8 MHz fmod x 80000 fmod x 1250 FM Distortion Standard Mode lt 2 for 0 5 to 1 0 times maximum deviation lt 1 for lt 0 5 times maximum deviation Applies for rates of 50 Hz to 50 kHz Low Distortion Mode Special Function 731 lt 0 15 for lt 3 5 kHz peak deviation and rates 0 3 to 3 kHz FM Accuracy 5 of setting 10 H
78. 0 kHz 0 to 25 Maximum 25 to 100 Maximum 20 Hz dc to 175 kHz 20 Hz dc to 100 kHz Incidental AM lt 1 depth for peak deviation lt 100 kHz at 1 kHz rate and carrier frequency gt 0 5 MHz DC Coupled FM Center Frequency Error at 1 GHz after dcFM internal cal and without any FM range changes lt 1 of dev 500 Hz Low Rate External AC Coupled FM Special Function 711 FREQUENCY BAND MHz MAX DEV IN kHz AT 10 Hz RATE SINE WAVE SQUARE WAVE 0 01 to 15 15 to 32 32 to 64 64 to 128 128 to 256 256 to 512 512 to 1056 Droop lt 30 on a 5 Hz square wave 3 dB Bandwidth 0 5 Hz to 100 kHz typical Maximum DC Input 10 mV Incidental AM lt 1 AM at 1 kHz rate and lt 10 kHz deviation PHASE MODULATION NOTE 4 Display Ranges 0 to 999 radians 1 to 9 99 radians 10 to 99 9 radians 100 to 400 radians Display Resolution 3 digits Maximum Deviation FREQUENCY BAND MHz MAXIMUM DEVIATION RADIANS 0 01 to 15 15 to 32 32 to 64 64 to 128 128 to 256 256 to 512 512 to 1056 NOTE 4 Phase modulation specifications are valid where RF frequency mod frequency gt 150 kHz eect eae outset ce eR SRR ann tte ET INTRODUCTION AND SPECIFICATIONS Table 1 1 Specifications for Model 6080A cont High Rate Phase Modulation Maximum Deviation Special Function 721 FREQUENCY BAND MHz MAXIMUM DEVIAT
79. 00 0 us Enter L1 Co C0 Grav to program a 100 microsecond pulse width REMOTE PULSE_WIDTH 100 US Section 4D Instrument State Memory ORGANIZATION OF INSTRUMENT STATE MEMORY 4D 1 The Signal Generator features nonvolatile memory for storage and recall of instrument settings Up to 50 full instrument settings can be saved and recalled through memory operations Six different memory operations are allowed from the front panel Recall of a memory location Store to a memory location Recall next memory location Recall previous memory location Store a single function parameter Recall a single function parameter In addition a secure mode is available that blanks the display and erases nonvolatile memory see Secure Mode and Nonvolatile Memory Erasing for details All memory operations except single function store and recall are available in remote The contents of nonvolatile memory are preserved for at least 2 years with the Signal Generator s power off Whenever you turn off the power memory location 00 always saves the last instrument settings Each memory location contains all of the commonly accessed parameters needed to program the Signal Generator However the RF on off state is unaffected by memory recall operations Certain other parameters are also not storable or recallable These parameters are described in the Table 4D 1 Nonvolatile memory locations are organized as shown in Table 4D 2 4D 1 FRONT P
80. 002 4002 4002 4023 MIXED AMPTD DISALLOWED MIXED AMPTD DISALLOWED MIXED FM PM DISALLOWED FREQ SWP SWP TIME LIMIT AP SWP PREVENTS FR SWP 4023 4037 4049 4052 4086 4091 4092 4093 4098 4099 Table 5D 6 6080 to HP8642 Error Code Mapping HP8642 Message NEXT STEP NOT POSSIBLE NOT POSSIBLE ABOVE MAX NOT POSSIBLE ABOVE MAX NOT POSSIBLE ABOVE MAX NOT POSSIBLE ABOVE MAX NOT POSSIBLE ABOVE MAX NOT POSSIBLE ABOVE MAX NOT POSSIBLE ABOVE MAX NOT POSSIBLE ABOVE MAX NOT POSSIBLE ABOVE MAX NOT POSSIBLE ABOVE MAX NOT POSSIBLE ABOVE MAX NOT POSSIBLE ABOVE MAX NOT POSSIBLE ABOVE MAX INVALID SPCL FUNCTION NO SAVE MEMORY LOCKED SAVE RECALL MAX 50 RECALL NOT DEFINED HP CMD NOT EMULATED FLUKE SPECIFIC ERROR Ei E2 Error Condition Detected in 6080 IEEE invalid edit or step Freq out of range Freq step size out of range Ampl out of range Ampl units conv out of range Ampl step size out of range AM depth out of range AM step size out of range FM PM dev out of range FM PM step size out of range Mod freq out of range Mod freq step size out of range Mod level out of range Mod level step out of range Ampl units conv not allowed with voltage reference Ampl step with mixed units not allowed FM PM step with mixed units not allowed
81. 1 Step Size Detaults rir eies adeuintie Neel dlunadeiie evil canada Muda beads 4 3 4A 1 Signal Generator Frequency Bands 00 0 c cc ccc ccs ecu evevccueeeens 4A 4 4B 1 Relative Amplitude Unit Combinations 00 ccc cece eee ee ceeeuees 4B 5 4B 2 RF Output Amplitude Bands 0 cc cece cece ccc nce e ee ee eee e en eeenes 4B 6 4C 1 FM M Deviation Limits FM M Enabled 0 0 cece eee ooann nna 4C 9 4C EM Band Limits esotere eeren a so Sade die a a iae geek Si Ganis 4C 11 4C 3 FM Band Limits Low Distortion Mode 0 0c ccc cece cee eeceeees 4C 12 4D Non Storable Recallable Parameters 0 00 cece ccc cuceeesveeeeeaeas 4D 2 4D 2 Nonvolatile Memory Locations 0 0000 ccc cc ccc ceceevaeesveeecnanes 4D 2 4F 1 Special Function Codes cece ccc ccc ccc cece eens cence eeeteetaeeeueaes 4F 2 4F 2 Functions of Edit Knob and Step Keys 0 0 ccc cece eee ce cece seen ees 4F 5 4G 1 Interpreting Status Codes 20 cece ce cence nee e cents eteeneaes 4G 2 SA 1 Remote Local State Transitions 0c ccc cece cee eveeceuceceaeeeues 5A 7 5A 2 IEEE 488 Interface Function Subsets Supported 000000cc cee eeee 5A 9 5A 3 Functional Elements of Commands 0c c cc cee cece eeececeneeeees 5A 18 5A 4 Interface Messages that the Signal Generator Accepts 0 00000 00 5A 19 5A 5 Interface Messages that the Signal Generator Sends
82. 1 V REMOTE OPERATION REMOTE COMMAND TABLES 5B 34 MODL_BRT Description Parameter Example Restrictions MODL_BAT Description Parameter Responses MODL_STEP Description Parameter Restrictions MODL_STEP Description Parameter Responses MODOUT Description Parameter Restrictions MODOUT Description Parameter Response Table 5B 3 Remote Commands cont Moves the bright digit to specified decade in modulation level field The default units are V Bright digit decade in modulation level display field with optional voltage units MODL_BRT 1 0 V Rejected during manual or single sweep Retrieves the decade of modulation level bright digit position None 1 Float Bright digit decade in modulation level display 2 String V Programs the modulation level step size in volts The default units are V Modulation level step with optional voltage units Rejected during manual or single sweep Retrieves the modulation level step size None 1 Float Modulation level step size 2 String V Selects the state of the MOD OUTPUT port ON modulation output always at output port OFF modulation output port is off Rejected during sweep Retrieves the state of the MOD OUTPUT port None String ON or OFF teeter sence emittance ike ranima a n se pe A REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont
83. 16 CAL_AM remote command 5B 13 CAL COMP switch 3 12 CAL_FM remote command 5B 13 Calibration compensation data displaying 4G 2 CAL_LEVEL remote command 5B 13 CAL_REFOSC remote command 5B 14 CC_BRKFREQ remote command 5B 14 CC_ERRFREQ remote command 5B 15 CC_EXIT remote command 5B 14 CC_FREQ remote command 5B 14 CC_HETADJ remote command 5B 15 CC_RDAM remote command 5B 15 CC_RDDVM remote command 5B 15 CC_RDFM remote command 5B 15 CC_RDFREQ remote command 5B 15 CC_RDPOWER remote command 5B 15 CC_RESUME 5B 15 CC_SAVE remote command 5B 16 CC_TARGET remote command 5B 16 CLRILCL key 3 9 CLS remote command 5B 16 INDEX 1 aan tennant ttt R oE INDEX INDEX 2 CMEM_CLRALT remote command 5B 16 CMEM_FIX remote command 5B 16 Command Processing 5A 5 Restrictions 5A 5 Syntax information 5A 2 Commands see remote commands Compatibility languages 5D 1 also see HP 8642 Fluke 6060 and 6070 COMP_ATT remote command 5B 16 COMP_ATTPMTR remote command 5B 16 COMP_COARSE remote command 5B 17 Compensation modes using alternate 4B 8 COMP_OUT remote command 5B 17 COMP_OUTDEF remote command 5B 17 COMP_SUBSYN remote command 5B 17 COMP_SUM remote command 5B 17 Converting 6060 and 6070 programs to use the 6080 language 5D 9 Converting FM phase modulation units 4C 9 DATA Keys 3 8 dB m key 3 9 DDT command using the 5A 23 DDT remote command 5B 18 DDT remote command 5B 18 Disabling special functions
84. 2 000000 000000 000000 000004 001000 000000 000000 000000 Seif test value returned on 6070 IT command 000000 777777 All tests passed Some tests failed Go to the 6080 language to query the results 000000 Tests were aborted 777777 Some tests failed and tests were aborted SENT IN 6070 MODE EQUIVALENT DESCRIPTION 6080 CODE Special function value sent with 6070 SP command Clears all currently set stored special functions Display special function status Initiates the power on self tests Display test Button test Pattern sensitive RAM check Non volatile memory check Set SRQ Reset SRQ Display instrument software revision level Forced DCFM Forced high deviation Fixed range Select sweep dwell time of 0 mS Select sweep dwell time Select sweep symmetry Wideband reference Modulation oscillator output Apply amplitude compensation 50 51 amp 730 732 890 891 895 880 881 40 41 920 921 NOTES Feature not available for the Signal Generator rejected for special functions Feature new for the Signal Generator no equivalent code for the 6060 Special function rejected it is only available from the front panel Special function rejected use DF 1 instead of SP11 FE1 and DFO instead of SP11 AFO REMOTE OPERATION COMPATIBILITY LANGUAGES Table 5D 3 Comp
85. 2 Stock No 004 000 00345 4 OPERATOR SAFETY SUMMARY SAFETY TERMS IN THIS MANUAL This instrument has been designed and tested in accordance with IEC Publication 348 Safety Requirements for Electronic Measuring Apparatus This Operator Manual contains information warnings and cautions that must be followed to ensure safe operation and to maintain the signal generator in a safe condition WARNING statements identify conditions or practices that could result in personal injury or loss of life CAUTION statements identify conditions or practices that could result in damage to equipment POWER SOURCE The signal generator is intended to operate from a power source that will not apply more than 264V ac rms between the supply conductors or between either supply conductor and ground A protective ground connection by way of the grounding conductor in the power cord is essential for safe operation USE THE PROPER FUSE To avoid fire hazard use only a fuse identical in type voltage rating and current rating as specified on the rear panel fuse rating label GROUNDING THE SIGNAL GENERATOR The signal generator is a Safety Class I grounded enclosure instrument as defined in IEC 348 The enclosure is grounded through the grounding conductor of the power cord To avoid electrical shock plug the power cord into a properly wired earth grounded receptacle before connecting anything to any of the signal generator terminals A protective ground con
86. 250 kHz 62 6 kHz 125 kHz 31 3 kHz 62 5 kHz 15 7 kHz 31 2 kHz 7 82 kHz 500 kHz 56 1 kHz 250 kHz 28 1 kHz 125 kHz 14 1 kHz 62 5 kHz 7 01 kHz 31 2 kHz 3 51 kHz 15 6 kHz 1 76 kHz 7 81 kHz 876 Hz 56 0 kHz 31 3 kHz 28 0 kHz 15 7 kHz 14 0 kHz 7 81 kHz 7 00 kHz 3 91 kHz 3 50 kHz 1 96 kHz 1 75 kHz 977 Hz 875 Hz 489 Hz 31 2 kHz 4 01 kHz 15 6 kHz 2 01 kHz 7 80 kHz 1 01 kHz 3 90 kHz 501 Hz 1 95 kHz 251 Hz 976 Hz 126 Hz 488 Hz 63 Hz 4 00 kHz 0 Hz 2 00 kHz 0 Hz 1 00 kHz 0 Hz 500 Hz 0 Hz 250 Hz 0 Hz 125 Hz 0 Hz 62 Hz 0 Hz CW MODE Using Low Distortion and Fixed Range FM Modes 4C 20 Two modes are available to modify or limit the ranging of the FM circuitry These modes offer improved performance of the FM circuitry for certain applications These modes are enabled using a Special Function command from the front panel or with the FM_RANGE command in remote Entering either of these modes lights the SPCL annunciator below the FREQUENCY display field In the normal operation mode the optimal FM band is determined for the specified combination of RF output frequency and FM deviation In FM Low Distortion mode the total harmonic distortion is diminished with a corresponding increase in phase noise
87. 40 ms increment selectable as minimum dwell time where dwell time can be 0 20 50 100 200 or 500 ms or 1 2 5 or 10s at each increment DIGITAL AMPLITUDE SWEEP Sweep Type Linear volts or logarithmic dB Sweep Modes Auto single or manual Adjustable Parameters Sweep symmetry sweep speed sweep width and sweep increment Sweep Speed Minimum 30 ms increment selectable as minimum dwell time where dwell time can be 0 20 50 100 200 or 500 ms or 1 2 5 or 10s at each increment SWEEP OUTPUT AUX Connector Pin 5 0 to 10V 10 up to 4096 points in a stepped ramp load gt 2 kQ PEN LIFT OUTPUT AUX Connector Pin 4 TTL level high during sweep retrace load gt 2 kQ GENERAL SPECIFICATIONS Temperature Operating 0 to 50 C 32 to 122 F Nonoperating 40 to 75 C 40 to 167 F Operating Humidity Range 95 to 30 C 75 to 40 C and 45 to 50 C Operating Altitude Up to 10 000 ft Vibration Nonoperating 5 to 15 Hz at 0 06 in 15 to 25 Hz at 0 04 in and 25 to 55 Hz at 0 02 in double amplitude DA Shock Nonoperating bench handling per MIL T 28800C Class 5 Style E Electromagnetic Compatibility The radiated emissions induce lt 0 5 uV at RF carrier frequency into a 1 inch diameter 2 turn loop 1 inch from any surface as measured into a 50Q receiver INTRODUCTION AND SPECIFICATIONS Table 1 2 Specifications for Model 6082A cont Complies with Sta
88. ANEL OPERATION INSTRUMENT STATE MEMORY Table 4D 1 Non Storable Recallable Parameters PARAMETER CATEGORY PARAMETER IEEE Address Talk Only Listen Only Addressed Mode Language Service Request Enable Event Status Enable Instrument Status Change Enable Device Trigger Buffer Protected User Data MEMORY Dividers Memory Lock State RF ON OFF state Alternate External Reference Frequency Output Correction Display ON OFF state Key Repeat Rate State MISCELLANEOUS Table 4D 2 Non volatile Memory Locations LOCATIONS DESCRIPTIONS A scratch pad location that is a copy of the last valid instrument state before a memory store or recall operation On power on it contains the instrument state when the power was turned off if the last memory operation was store location 00 contains the instrument state in the memory location that was written by the store operation If the last memory operation was a recall or sequence location 00 contains the instrument state before the recall operation The entry o _9 _ canbe thought of as an undo command for memory operations Available for storage and recall of preset states of the Signal Generator Not used Holds the single parameter store and recall values See the heading Single Parameter Store and Recall in this Section The Signal Generator Default Memory Location All memory locations can be initialized to this sett
89. C warrants each instrument it manufactures to be free from defects in material and workmanship under normal use and service for the period of 1 year from date of purchase This warranty extends only to the original purchaser This warranty shall not apply to fuses disposable batteries rechargeable type batteries are warranted for 90 days or any product or parts which have been subject to misuse neglect accident or abnormal conditions of operations In the event of failure of a product covered by this warranty John Fluke Mfg Co Inc will repair and calibrate an instrument returned to an authorized Service Facility within 1 year of the original purchase provided the warrantor s examination discloses to its satisfaction that the product was defective The warrantor may at its option replace the product in lieu of repair With regard to any instrument returned within 1 year of the original purchase said repairs or replacement will be made without charge If the failure has been caused by misuse neglect accident or abnormal conditions of operations repairs will be billed at a nominal cost In such case an estimate will be submitted before work is started if requested THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY FITNESS OR ADEQUACY FOR ANY PARTICULAR PURPOSE OR USE JOHN FLUKE MFG CO INC SHALL NOT BE LIABLE FOR ANY SPECIAL INCIDE
90. CRIPTION 00 No self test errors 301 Self tests aborted 302 Calibration compensation memory checksum test failed 303 Ram test failed 304 EPROM test failed 305 Non volatile memory test failed 306 IEEE interface test failed 307 309 AM tests See Service Manual 310 317 FM tests See Service Manual 318 319 DCFM tests See Service Manual 320 323 Coarse loop tests See Service Manual 324 326 Subsynthesizer tests See Service Manual 327 333 Sum loop tests See Service Manual 334 336 RF output tests See Service Manual 337 338 Pulse modulator tests See Service Manual 339 356 Filter tests See Service Manual E 1 E 2 Appendix F Rear Panel AUX Connector Pinout Input Input Output Output h 3 4 5 6 7 8 9 Sequence down memory location Sequence up memory location Ground Pen Lift Blanking TTL Sweep DAC 0 10V Toggle bright digit between frequency and amplitude fields NOTE This connector is for foot pedal or other external switch control The input lines are active when taken to ground pin 3 The inputs lines do not repeat if held at ground The pin 5 output Sweep DAC is a 0 10v de analog signal for driving a plotter See Section 4E in the Operator manual for more information F 1 F 2 400 1000 key 3 6 AC INPUT line power cord module 3 12 Accessories 2 3 Address selection procedure 5 2 AM see amplitude modulation AM_BRT remote command 5B 8 AM_BRT remote command 5B 8 AMPL key
91. CTION RELATED FLUKE 1722A BASIC COMMAND Interface Clear My Listen Address My Talk Address Remote Enable Ready for Data Selected Device Clear Serial Poll Disable Serial Poll Enable Unlisten Untalk A control line that sets the interface to a quiescent state Addresses a specific device on the bus as a listener The controller sends MLA automatically whenever it directs a device dependent or common command to a specific instrument Addresses a specific device on the bus as a talker The controller sends MTA automatically whenever it directs a device dependent or common query to a specific instrument Transfers remote local control of the REMOTE Signal Generator See Table 5A 5 Sets the handshake signal line None NRFD low CLEAR Does the same thing as DCL but only if the Signal Generator is currently addressed as a listener Cancels the effect of a Serial Poll Enable Part of SPL After the Signal Generator receives this message it sends the Status Byte the next time it is addressed as a listener no matter what the command is Part of SPL Unaddresses a specific device on the bus as a listener The controller sends UNL automatically after the device has successfully received a device dependent or common command Unaddresses a specific device on the bus as a listener The controller sends UNT automatically after it receives the response from
92. D 1 ORGANIZATION OF INSTRUMENT STATE MEMORY 4D 2 STORING AND RECALLING INSTRUMENT STATES 4D 3 RECALLING A SEQUENCE OF INSTRUMENT STATES 4D 4 DIVIDING MEMORY INTO PARTITIONS 0085 4D 5 WRITE PROTECTING MEMORY LOCATIONS 4D 6 RESETTING ALL MEMORY LOCATIONS TO FACTORY DEFAULT 2ucux a vented La Re ee el ade 4D 7 STORING AND RECALLING SINGLE PARAMETERS 4D 8 SECURE MODE AND NONVOLATILE MEMORY ERASURE 4D 9 Enabling Secure Mode 0 cece eee eee eee eee ee eee 4D 10 Erasing Nonvolatile Memory eee ence eee eee eee 4D 11 Changing the erase Operation Repeat Count 50 SWEEP sia oe eet eed ae oe ites Tei ee ee oA aaa ta 4E 1 INTRODUCTION s oi i55 85 6G lses ANTEE E EEEREN 4E 2 SELECTING FREQUENCY OR AMPLITUDE SWEEP 4E 3 SUMMARY OF SWEEP MODES c cece eee e eee eee eee 4E 4 SELECTING SYMMETRIC OR ASYMMETRIC SWEEP 4E 5 SETTING SWEEP DWELL TIME ccc cece cece eee eee 4E 6 FREQUENCY SWEEP 04 xiao atedaGctadvaw sina os 4E 7 Setting Frequency Sweep Width 0 cece eee e eee e ence eae 4E 8 Setting Frequency Sweep Increment 0 cece e eee eee 4E 9 Digital Frequency Sweep Example ces ecceeev eevee 4E 10 AMPLITUDE SWEEP soircas ccc cece ccc ccc cece teen eee nes 4E i1 Setting Amplitude Sweep Width cece eee ev ee eens 4E 12 Setting Ampl
93. EP_FIELD SWEEP_SYM SWEEP_SYM MISCELLANEOUS DDT DDT DISPLAY DISPLAY GAL KEY_RATE KEY_RATE KNOB_STEP KNOB_STEP LOCALERT LOCALERT MOD_DISPLAY MOD_DISPLAY OPC OPC OPT PRESET PUD PUD RST SECURITY SECURITY SPCL TRG WAI Table 5B 1 Remote Command Summary cont Retrieves the frequency sweep width Selects the sweep mode Retrieves the sweep mode Programs the sweep dwell time Retrieves the sweep dwell time Selects the sweep field Retrieves the sweep field Selects the sweep symmetry Retrieves the sweep symmetry Defines the device trigger buffer Queries the device trigger buffer Selects the display status Retrieves the display status Goes to alternate language Selects the repeat rate for the step keys Retrieves the key repeat rate Selects the operation of the knob and step up down keys Retrieves the state of the knob and step up down keys Programs mode to generate an SRQ on complete front panel operations Retrieves the state of the local alert LOCALERT mode Selects the quantity to be shown in the modulation field Retrieves the quantity shown in the modulation field Programs bit 0 in the ESR when pending remote operations are completes Replies with 1 when all pending operations are complete Retrieves report of installed options Resets instrument to preset state Defines protected user data buffer Retrieves protected user data buffer Resets instrument to default memory loca
94. ERASE command The default is 12 Number of counts for erase operation to repeat 12 99 allowed Retrieves the nonvolatile memory erase repeat count for the MEM_ERASE command None Integer Erase operation repeat count Retrieves earliest error code from the error queue If no error codes are pending a zero is returned If the optional keyword EXPLAIN is specified a character string containing its explanation is returned with the error code optional EXPLAIN FREQ 100 GHZ ERROR EXPLAIN Returns 1 Frequency out of range FREQ 100 GHZ ERROR Returns 1 1 Integer The error code 2 optional String The explanation of the code Loads a byte into the Event Status Enable Register described under Checking the Instrument Status The decimal equivalent of the binary number to load into the register 0 255 only ESE 140 Enables bits 2 QYE 3 DDE and 7 PON and disables all the other bits See Checking the Instrument Status for details Retrieves the byte from the Event Status Enable register described under Checking the Instrument Status None Integer Decimai equivalent of the register byte ESE Returns 140 if bits 2 QYE 3 DDE and 7 PON are enabled 1 and the rest of the bits are disabled 0 See Checking the Instrument Status for details ESR Description Parameter Response Example ETIME Description Parameter
95. ESR REGISTER CONTENTS VALUE 70 PRINT ESE B DISPLAY THE ESE REGISTER CONTENTS VALUE 80 END REMOTE OPERATION REMOTE PROGRAMMING The status of the registers can be read by converting the contents of the variables A and B into binary For example if A is 32 its binary equivalent is 00000000 00100000 Therefore bit 5 Command Error CME in the ESR is set 1 and the rest of the bits are reset 0 This means that the Signal Generator tried to execute an incorrectly formed command By setting the bits in the ESE the associated bits in the ESR can be enabled For example to prevent the occurrence of acommand error from causing bit 5 ESB in the Serial Poll Status Byte to go to 1 bit 5 in the ESE register can be reset to 0 The following sample program accomplishes this by checking the status of the CME bit then toggling it if it is 1 10 THIS PROGRAM RESETS BIT 5 CME uy THE ESE 20 PRINT 2 ESE 33 INITIAL ESE IS CME OPC 30 GOSUB 100 GET AND PRINT INITIAL ESE 4O IF AZ AND 32 THEN A A 32 CLEAR CME BIT 5 50 PRINT 2 ESE A LOAD THE ESE WITH THE NEW VALUE 60 GOSUB 100 GET AND PRINT NEW ESE 70 END 100 PRINT 2 ESE 110 INPUT 2 A 120 PRINT ESE A 130 RETURN a o o ASK FOR THE ESE CONTENTS RETRIEVE THE REGISTER CONTENTS The ESE may not be loaded from the front panel Output Queue 5A 25 The output queue is loaded whenever a query is processed The controller t
96. Entry Off 5D 23 The 6080A 82A does not emulate the following HP8642 Knob Control commands KI Set Knob Increment KHON Knob Hold On KHOF Knob Hold Off KL Move Cursor One Decade Left KR Move Cursor One Decade Right EO Entry Off Step Increment Set 5D 24 The 6080A 82A emulates the 8642 Step and Increment Set functions with the exception of the following function prefixes AA AB Start Stop Amplitude FA FB Start Stop Frequency ST Sweep Time Save Recall Register 5D 25 The 6080A 82A emulates HP8642 recall register commands SV RC SVUP RCUP SVDN RCDN SS and SQ but with the following four differences 1 The contents of recall register 00 are altered by all save recall and sequence operations as described in Section 4D The SVUP RCUP and SQ operations skip register 00 The command SS0000 is equivalent to SS0050 no sequence range 2 The commands SVUP RCUP and SQ all use the same next register number which is set by the Set Sequence command to the beginning of the sequence range The SQ command when used alone remains inside the sequence range but a Save or Recall command outside the range causes subsequent sequence commands to operate outside the range 3 An exclusive sequence range for example SS4030 where registers 31 through 39 are skipped is not fully emulated SQ remains in one portion of the range either above or below the hole 5D 19 REMOTE OPERATION COMPATIBILITY LANGUA
97. FMAOM ON or OFF Retrieves the state of internal FM OM Turns low rate FM mode ON or OFF Retrieves the state of low rate FM mode Turns external pulse modulation ON or OFF Retrieves the state of external pulse modulation Turns internal pulse modulation ON or OFF Retrieves the state of internal pulse modulation INTERNAL MODULATION OSCILLATOR MOD_WAVE MOD_WAVE MODF MODF MODL MODL MODOUT MODOUT PULSE_WIDTH PULSE_WIDTH AMPL_MANUAL AMPL_SINCR AMPL_SINCR AMPL_SWIDTH AMPL_SWIDTH FREQ_MANUAL FREQ_SINCR FREQ_SINCR FREQ_SWIDTH Selects the modulation oscillator waveform Retrieves the modulation oscillator waveform Programs the modulation frequency Retrieves the modulation frequency Programs the modulation level Retrieves the modulation level Selects the state of the MOD OUTPUT port Retrieves the state of the MOD OUTPUT port Programs the modulation oscillator pulse width Retrieves the modulation oscillator pulse width Increments or decrements manual amplitude sweep Programs the amplitude sweep increment Retrieves the amplitude sweep increment Programs the amplitude sweep width Retrieves the amplitude sweep width Increments or decrement the manual frequency sweep Programs the frequency sweep increment Retrieves the frequency sweep increment Programs the frequency sweep width 5B 3 REMOTE OPERATION REMOTE COMMAND TABLES 5B 4 FREQ_SWIDTH SWEEP SWEEP SWEEP_DWELL SWEEP_DWELL SWEEP_FIELD SWE
98. Fluke Mfg Co Inc INTERFERENCE INFORMATION This equipment generates and uses radio frequency energy and if not installed and used in strict accordance with the manufacturer s instructions may cause interference to radio and television reception It has been type tested and found to comply with the limits for a Class B computing device in accordance with the specifications in Subpart J of Part 15 of FCC Rules which are designed to provide reasonable protection against such interference in a residential installation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient the receiving antenna Relocate the equipment with respect to the receiver e Move the equipment away from the receiver Plug the equipment into a different outlet so that the computer and receiver are on different branch circuits If necessary the user should consult the dealer or an experienced radio television technician for additional suggestions The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is availabie from the U S Government Printing Office Washington DC 2040
99. GE 5D 20 The SP251 Special Function 251 Clear Recall Registers command is implemented differently in the 6080A 82A in that the Instrument Preset State is stored in each memory location Special Functions 5D 26 A limited set of HP8642 Special Functions are emulated as listed in Table 5D 12 Messages 5D 27 The following message status command is not emulated MG Load Message Queue Table 5D 12 HP8642 Special Functions Emulated DESCRIPTION Turn Special Functions 4 9 Off ALC Off External Low Rate FM Low Distortion FM Turn Off All Specials lt 200 Ext Int Low Rate FM Modulation Frequency Correction Off Disable Setting ALC On Turn Off External Low Rate FM Turn Off Low Distortion FM Turn Off Ext Int Low Rate FM Modulation Frequency Correction On Re enable Setting Phase Decrement 1 degree Phase Increment 1 degree Phase Decrement 5 degrees Phase Increment 5 degrees Calibrate Modulation Frequency Bands Clear All Recall Registers SP4 ALC Off and SP204 ALC On cause no change to the 6080A 82A instrument state but cause no execution error The 6080A 82A Output Circuit ALC loop is isolated SP113 Mod Freq Correction Off SP213 Mod Freq Correction On and SP248 Calibrate Mod Freq Bands cause no change to the 6080A 82A instrument state but cause no execution error The 6080A 82A Modulation Oscillator is digitally synthesized and requires no cal
100. ION RADIANS 0 01 to 15 15 to 32 32 to 64 64 to 128 128 to 256 256 to 512 512 to 1056 Accuracy 5 of setting 0 1 radian at 1 kHz rate Distortion NOTE 5 lt 2 THD from maximum deviation to 1 2 max deviation and lt 1 THD at 1 2 maximum deviation or less at 1 kHz rate 3 dB Bandwidth AC coupled phase modulation 20 Hz to 15 kHz DC coupled phase modulationede to 15 kHz High Rate Phase Modulation 3 dB Bandwidth Special Function 721 AC coupled phase modulation 20 Hz to 100 kHz DC coupled phase modulation dc to 100 kHz Incidental AM valid for output frequency gt 500 kHz 1 AM at 1 kHz rate for peak deviation lt 10 radians PULSE MODULATION For RF Output Frequencies gt 10 MHz On Off Ratio 40 dB minimum for frequencies from 100 to 1056 MHz 60 dB minimum for frequencies lt 100 MHz Rise and Fall Times lt 15 ns 10 to 90 Level Error For pulse widths gt 50 ns the power in the pulse is within 0 7 dB of the measured CW level Duty Cycle External Modulation 0 to 100 Repetition Rate External Modulation DC to 10 MHz Internal Modulation Internal rates and widths External Modulation The pulse input is TTL compatible terminated in 50Q with internal active pull up it can be modeled as 1 2V in series with 50Q at the pulse mad input connector The instrument senses input terminal voltage and turns the RF OUTPUT off when the terminal voltage drops below 1 0 1V The maximum allowable
101. L_CMPDAT AMPL_COMP AMPL_COMP AMPL_EMFOUT AMPL_EMFOUT AMPL_RANGE AMPL_RANGE AMPL_REL AMPL_REL AMPL_UNITS RFOUT RFOUT PHASE ADJUST PHASE PHASE PHASE_CLK PHASE_CLK PHASE_ZERO Table 5B 1 Remote Command Summary Selects the external reference frequency Retrieves the selected external reference frequency Programs the displayed RF output frequency Retrieves the displayed RF output frequency Retrieves the RF output frequency Retrieves the base frequency Selects RF output blanking mode Retrieves the state of RF output blanking mode Selects relative frequency mode Retrieves the state of relative frequency mode Selects low noise external reference mode Retrieves the state of low noise external reference mode Retrieves the setting of the frequency reference INT EXT Programs the displayed RF output amplitude Retrieves the displayed RF output amplitude Retrieves the RF output level Retrieves the base amplitude Selects alternate output level compensation data Retrieves the alternate output level compensation state Selects the amplitude compensation mode Retrieves the state of amplitude compensation mode Selects EMF display mode Retrieves the state of EMF display mode Selects amplitude normal fixed range mode Retrieves the state of amplitude range mode Selects relative amplitude mode Retrieves the state of relative amplitude mode Converts the AMPLITUDE display to specified units Turns the RF OUTPUT port ON or
102. M DCAM However external ACAM and external DCAM are mutually exclusive Enabling external ACAM while external DCAM is enabled turns off external DCAM and vice versa Setting AM Depth and AM Depth Step Size 4C 9 The AM depth and AM depth step size are controlled using the FUNCTION DATA UNIT entry sequence Pressing the am function key causes the MODULATION display field to display the AM depth moves the bright digit to the MODULATION display field and places the Signal Generator in the AM depth entry mode Entry or modification of the AM depth value does not change the Signal Generator output unless AM is enabled The AM depth step size is selected for entry by pressing the key after selecting the AM function 4C 5 FRONT PANEL OPERATION MODULATION 40 6 AM DEPTH RANGE RESOLUTION 0 to 99 9 0 1 AM DEPTH STEP SIZE RANGE RESOLUTION 0 to 99 9 0 1 SYNTAX Set AM Depth a numeric data Select AM Depth Step Size au numeric data EXAMPLE 1 Set AM depth to 23 5 FRONTPANEL C 2 103 C 3 REMOTE AM 23 5 PCT EXAMPLE 2 Set AM depth step size to 1 0 FRONT PANEL C CJ REMOTE AM_STEP 1 0 PCT Activating Internal AM 4C 10 Internal AM is enabled by pressing the key from the front panel or using the INT_AM ON command in remote The INT AM annunciator is lit when Internal AM is enabled With Internal AM enabled the internal modulation oscillator modulates the RF signal to the spec
103. MHz AMPLITUDE IN dBm 127 0 1 to 0 4 2 dB gt 3 dB gt 0 4 to 1056 1 dB gt 43 dB gt 1056 to 2112 k 1 dB gt k 3 dB gt INTRODUCTION AND SPECIFICATIONS Table 1 2 Specifications for Model 6082A cont Accuracy 0 to 50 C AMPLITUDE IN dBm 127 FREQUENCY MHz ok 1 5 dB _ ______s _ 3 dB gt k 1 5 dB _______s 3 dB 0 1 to 0 4 0 4 to 1056 1056 to 2112 aK Source SWR lt 1 5 1 below 1 dBm lt 2 0 1 above 1 dBm Flatness 0 to 50 C 1 0 dB at 10 dBm Intermodulation Distortion Amplitude of 4 dBm CW only SPACING 1 kHz 25 kHz FREQUENCY MHz 0 1 to 128 MHz 60 dBc 75 dBc 128 to 512 MHz 65 dBc 75 dBc 512 to 2121 MHz 65 dBc 70 dBc SPECTRAL PURITY CW ONLY Spurious Signals lt 100 dBc for offsets greater than 10 kHz and RF output frequency lt 1056 MHz lt 94 dBc for offsets greater than 10 kHz and RF output frequency gt 1056 MHz Fixed frequency spurious signals for RF output frequency lt 1056 MHz are lt 100 dBc or lt 140 dBm whichever is greater Fixed frequency spurious signals for RF output frequency gt 1056 MHz are lt 94 dBc or lt 140 dBm whichever is greater Harmonics lt 30 dBc for amplitudes less than 13 dBm at 1 to 2112 MHz Subharmonics lt 45 dBc for RF output frequencies from 1056 to 2112 MHz Power Line S
104. NT PANEL OPERATION Turn the knob clockwise to increment the bright digit Turn the knob counterclock wise to decrement the bright digit The position of the bright digit within a display field is retained when the bright digit is moved from one display field to another and back to the original field Note that each function sharing the MODULATION display field AM Depth FM M Deviation Modulation Frequency and Modulation Level retains its own bright digit position The bright digit is turned off while Manual Sweep is active Refer to Section 4E for more information about the sweep function An edit operation is ignored when the result would cause the value of the edited parameter to exceed its programmable limit Bright digit positioning and editing commands are also provided for remote operation for each of the six functions Refer to Section 5 for more information incrementing and Decrementing by Step 4 6 You can change the value of a parameter in increments of a programmable step size by pressingthe A or 7_ STEP keys The step size for a given function remains in effect until a new step size is selected even after power is turned off If you do not initially change the step sizes the defaults shown in Table 4 1 are in effect Table 4 1 Step Size Defaults PARAMETER DEFAULT STEP SIZE Frequency Amplitude AM Depth FM OM Deviation Modulation Frequency Modulation Level To change the magnitude of a step size proc
105. NTAL OR CONSEQUENTIAL DAMAGES WHETHER IN CONTRACT TORT OR OTHERWISE if any failure occurs the following steps should be taken t Notify the JOHN FLUKE MFG CO INC or nearest Service facility giving full details of the difficulty and include the model number type number and serial number On receipt of this information service data or shipping instructions will be forwarded to you 2 Onreceipt of the shipping instructions forward the instrument transportation prepaid Repairs will be made at the Service Facility and the instrument returned transportation prepaid SHIPPING TO MANUFACTURER FOR REPAIR OR ADJUSTMENT All shipments of JOHN FLUKE MFG CO INC instruments should be made via United Parcel Service or Best Way prepaid The instrument should be shipped in the original packing carton or if itis not available use any suitable container that is rigid and of adequate size If a substitute container is used the instrument should be wrapped in paper and surrounded with at least four inches of excelsior or similar shock absorbing material CLAIM FOR DAMAGE IN SHIPMENT TO ORIGINAL PURCHASER The instrument should be thoroughly inspected immediately upon original delivery to purchaser All material in the container should be checked against the enclosed packing list The manufacturer will not be responsible for shortages against the packing sheet unless notified immediately If the instrument is damaged in any way a cla
106. ODULATION SOURCE Sine Wave Rates 0 1 Hz to 200 kHz key selectable 400 1000 Hz Display Ranges 00 1 to 99 9 Hz 100 to 999 Hz 1 00 to 9 99 kHz 10 0 to 99 9 kHz 100 to 200 kHz Frequency Resolution 0 1 Hz or 3 digits Frequency Accuracy Same as reference oscillator 7 millihertz Output Level Range 0 to 4V pk into 6002 Output Level Resolution 1 mV pk or 3 digits whichever is greater Distortion lt 0 15 THD for output levels gt 0 2V pk and modulation frequency lt 20 kHz Output Level Accuracy 4 15 mV for modulation frequency lt 100 kHz Output Impedance 6002 2 Other Waveforms Available by Special Function Square Wave Special Function 752 Triangle Wave Special Function 751 Pulse Special Functions 758 759 width 100 ns to 1 Fmod in 100 ns or 3 digit increments whichever is greater Rate and width are coherent with signal generator time base EXTERNAL MODULATION 1V pk provides indicated modulation index Nominal input impedance is 600Q Maximum level is 5V pk MODULATION MODES Any combination of AM PULSE and FM or M internal or external may be used DIGITAL FREQUENCY SWEEP Sweep Modes Auto single or manual Adjustable Parameters Sweep symmetry sweep speed sweep width and sweep increment Sweep Speed Minimum 40 ms increment selectable as minimum dwell time where dwell time can be 0 20 50 100 200 500 ms or 1 2 5 or 10s at each increment DIGITAL AMPLITUDE S
107. PECIAL FUNCTIONS 4F 2 The Special Function code is a two or three digit number Special Functions 00 through 19 perform an immediate action Special functions 20 through 59 and 600 through 999 change the instrument state The first digit of a Special Function indicates its classification and the second digit defines it A Special Function executes when you enter the last digit of its code SYNTAX lt n gt 0 9 Special Functions 00 through 59 lt n gt lt n gt Special Functions 600 through 999 lt n gt lt N gt lt N gt VIEWING ENABLED SPECIAL FUNCTIONS 4F 3 A list of the active stored mode Special Functions is displayed while the sect key is pressed A Special Function is defined as active and its code is displayed only when it is programmed to a state other than its default state If all Special Functions are in their default or OFF state the code 00 is displayed Up to four Special Function codes are displayed at a time If more than four Special Functions are active repeatedly pressing the key scrolls through the list For more information on the operation of the Special Function status display see Section 4G Error and Status Reporting 4F 3 FRONT PANEL OPERATION SPECIAL FUNCTIONS THE SPCL ANNUNCIATOR 4F 4 Several Special Functions enable operating modes that cause a distinct change to the state of the Signal Generator but do not have a dedicated annunciator in the display The SPCL annunciat
108. PERATION REMOTE COMMAND TABLES DDT DDT Description Parameter Examples Description Parameter Response Example DISPLAY Description Parameter Restrictions Table 5B 3 Remote Commands cont Defines device trigger Used to load commands into the device trigger buffer for subsequent execution when a TRG common command or the group execute trigger GET IEEE 488 1 interface message is received The syntax of the data loaded is not checked until the trigger command is received A TRG command in the trigger buffer will cause an Execution Error when the trigger command is received O0 lt user data gt lt ASCll Line Feed with EOl gt or lt non zero digit gt lt digits gt lt user data gt For both forms the bytes received in the lt user data gt field are stored in non volatile memory and up to 72 bytes are allowed The first form accepts data bytes after the 0 until the ASCII Line Feed character is received with an EOI signal In the second form the non zero digit specifies the number of characters that will follow in the lt digits gt field These characters must be O through 9 ASCII 48 through 57 decimal The value of the number in the lt digits gt field defines the number of user data bytes that will follow in the lt user data gt field DDT 0STEP_FREQ UP lt Line Feed with EOl gt or DDT 212STEP_FREQ UP NOTE The 2 indicates that there are two digits to follow in thi
109. PUD and DDT commands allow all characters in their arguments and they terminate in a special way nse Message Syntax 5A 7 In Table 5B 3 responses from the Signal Generator are described wherever appropriate In order to know whether to read an integer or a floating point number the entry is labeled Integer or Floating Integers for most controllers or computers are decimal numbers in the range 32768 to 32767 Response elements of this type are labeled as Integer in the command tables Floating point numbers may be in exponential form i e 1 15E 12 Examples in Table 5B 3 show response formats INPUT BUFFER OPERATION 5A 8 As the Signal Generator receives each data byte from the controller it places the bytes in a portion of memory called the input buffer The input buffer holds up to 64 data bytes and operates in a first in first out fashion The Signal Generator treats the IEEE 488 EOI control line as a separate data byte and inserts it into the input buffer if it is encountered as part of a message terminator The Signal Generator treats the IEEE 488 trigger interface message as a separate byte and inserts it into the input buffer at the time it is received Input buffer operation is transparent to the program running on the controller If the controller sends commands faster than the Signal Generator can process them the input buffer fills to capacity When the input buffer is full the Signal Gener
110. Preset State and other factory default tables refer to Appendix A ENTERING AND MODIFYING PARAMETERS 4 3 The six primary parameters of the Signal Generator correspond to the six Function Keys as follows o Feo RF output frequency ame RF output amplitude am AM depth emim FM M deviation 492 Modulation frequency Modulation level The value of each can be individually set or modified by any of three methods Entering parameters directly Editing the bright digit Incrementing and decrementing by step FRONT PANEL OPERATION 4 2 Each of these methods accomplishes the same result but each method is particularly suited for a specific application For example you can establish an initial parameter value by entering it directly then adjust that parameter with by editing the bright digit or incrementing or decrementing it by step Entering Parameters Directly 4 4 To enter a parameter directly proceed as follows 1 Select a function Select one of the six functions by pressing a FUNCTION key The bright digit appears in the corresponding display field The presence of the bright digit in the display field indicates that the parameter for the selected function is ready to be entered or modified 2 Enter the numeric data Enter the numeric data using the DATA keys The numbers appear in the selected display field The bright digit is off when numeric data is being entered 3 Enter a
111. Q Description Parameter Response Description Parameter Restrictions Description Parameter Responses FM_BRT Description Parameter Example Restrictions FM_BRT Description Parameter Responses FM_RANGE Description Parameter Restrictions FM_RANGE Description Parameter Response REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Retrieves the selected external reference frequency None String STD or ALT Programs the FM OM deviation in Hz or radians The default units are HZ FM M deviation with optional frequency or radians units Rejected during manual or single sweep Retrieves the FM OM deviation None 1 Float FM OM deviation 2 String HZ or RAD Moves the bright digit to the specified decade in FM OM field Note that the unit must match the displayed units e g HZ KHZ MHZ or GHZ for Hz RAD for Radians when specifying the bright digit position The default units are HZ Bright digit decade in FM OM display field with optional frequency or radians units FM_BRT 10 0 KHZ Rejected during manual or single sweep Retrieves the decade of FM OM bright digit position None 1 Float Bright digit decade in FM OM display 2 String HZ or RAD Selects normal mode or low distortion or fixed range FM NORMAL or LOWDISTORT or FIXED Rejected during sweep Retrieves the state of low distortion or fi
112. RUMENT STATE MEMORY SYNTAX FRONT PANEL REMOTE Erase Non Volatile 2 MEM_ERASE Memory NOTE After you enter Special Function 829 on the front panel the instrument displays the Sto prompt in the FREQUENCY field for 5 seconds You have 5 seconds in which to press to execute the memory erasure If you do not press within 5 seconds the memory erase operation aborts When the remote command is used the erase operation occurs immediately Changing the Erase Operation Repeat Count 4D 11 To change the number of repetitions of the four step erase operation from the default of 12 to a value from 12 to 99 use the following Special Function or remote command SYNTAX FRONT PANEL REMOTE Display Change C2 ERASE_RPT Erase Repetitions 4D 9 4D 10 Section 4E Sweep INTRODUCTION 4E 1 The Signal Generator provides digital sweep capability for both RF output frequency and RF amplitude Each has three modes of operation auto sweep manual sweep and single sweep Auto digital sweep mode cycles continuously through the sweep range with aselected dwell time at each discrete frequency or amplitude The display reflects the center frequency or amplitude the bright digit remains on All numeric function entries are allowed while auto sweep is active Manual digital sweep mode increments and decrements within the sweep range with the edit knob in units of the sweep increment The display reflects the output relative mode off or of
113. Status Register is a two byte register in which the higher eight bits are always 0 and the lower eight bits except bit represent various conditions of the Signal Generator The ESR is cleared set to 0 when the power is turned on and every time it is read BIT ASSIGNMENTS FOR THE ESR AND ESE 5A 22 The bits in the Event Status Register ESR and Event Status Enable Register ESE are assigned as shown in Figure 5A 3 PON URQ CME REMOTE OPERATION REMOTE PROGRAMMING Power on This bit is set to 1 if the power supply has been turned off and on since the last time the ESR was read User request This bit is set on special function 14 Command error The Signal Generator s IEEE 488 interface encountered an incorrectly formed command The command ERROR fetches the earliest error code in the error queue which contains error codes for the first 15 errors that have occurred Execution error An error occurred while the Signal Generator tried to execute the last command This could be caused for example by a parameter being out of its allowed range or inconsistent with the generator s capabilities An example would be attempting to execute FREQ 100 GHZ which is outside the range of the Signal Generator The command ERROR fetches the earliest error in the error queue which contains error codes for the first 15 errors that have occurred Device dependent error A error has occurred which is not a Command Error CME a
114. TRG command or the Group Execute Trigger GET interface message Fluke 1722A BASIC TRIG command The use of the trigger buffer will speed up execution of the application program because the contents of the buffer do not need to be transferred on the IEEE 488 bus each time they are executed In the following example the Signal Generator is programmed to step frequency approximately every second 10 REMOTE 20 PRINT 2 FREQ 210 MHZ SIGNAL GENERATOR ADDRESS IS 2 30 PRINT 2 FREQ_STEP 1 25 KHZ PROGRAM STEP SIZE TO 1 25 KHZ 4O PRINT 2 DDT OSTEP_FREQ UP LOAD TRIGGER BUFFER 50 PRINT 2 DDT 1 VERIFY CONTENTS OF BUFFER 60 INPUT LINE 2 A PRINT A A SHOULD BE 213STEP_FREQ UP 100 TRIG 2 t TRIGGER THE SIGNAL GENERATOR 110 WAIT 1000 WAIT 1 SECOND 120 GOTO 100 DO IT AGAIN 5A 23 5A 24 Section 5B Remote Command Tables REMOTE COMMAND SUMMARY 5B 1 Remote commands organized by function are summarized in Table 5B 1 Units that are accepted in command parameters are listed in Table 5B 2 REMOTE COMMANDS 5B 2 The complete list and description of remote commands arranged in alphabetical order is provided in Table 5B 3 5B 1 REMOTE OPERATION REMOTE COMMAND TABLES 5B 2 RF FREQUENCY EXTREF_FREQ EXTREF_FREQ FREQ FREQ FREQ_ABS FREQ_BASE FREQ_BLANK FREQ_BLANK FREQ_REL FREQ_REL LOWNOISE LOWNOISE REF RF OUTPUT AMPLITUDE AMPL AMPL AMPL_ABS AMPL_BASE AMPL_CMPDAT AMP
115. TRUMENT STATUS CHANGE ENABLE REGISTER ISCE i os Anan s dail ea tical ahr oversee uendeet 5A 15 5A 31 PROGRAMMING THE ISR ISCR AND ISCE 5A 15 5A 32 Status CUS aa aee a a i a en raTa e Goes 5A 16 5A 33 IEEE 488 INTERFACE CONFIGURATION oases 5A 16 5A 34 BUS COMMUNICATION OVERVIEW oaaao 5A 16 5A 35 Definition Queries and Commands ccccecceeceucees 5A 17 5A 36 Functional Elements of Commands ccccceceeeueees 5A 17 5A 37 Interface Messages sj din it cane eves ae puddin Soo Meee apne eias SA 19 SA 38 THE IEEE 488 CONNECTOR 0 ccc cece ccc ceeeccesceueces SA 21 5A 39 REMOTE PROGRAM EXAMPLES 0 ceecccccceucccuee 5A 22 5A 40 Using the OPC OPC and WAI Commands 5A 22 5A 41 Using the DDT and TRG Commands o on aenaran 5A 23 5B REMOTE COMMAND TABLES 0 aaaea oaoaraa 5B 1 SB I REMOTE COMMAND SUMMARY ccccccccceccececs 5B 1 5B 2 REMOTE COMMANDS ices discs cada heswe bee vedsectticnonconvess 5B 1 5C TALK ONLY LISTEN ONLY OPERATION 000 ee 5C 1 Dele INTRODUCTION ajcueic aot weicdh adecendguwleraernwiensstens cote e the 5C 1 SC 2 TALK ONLY OPERATION 0 0c c ccc cccccecceuececuuccences 5C I 5C 3 LISTEN ONLY OPERATION 00 0 00 ccccccaecccuccscucceueces 5C 2 5C 4 LISTEN ONLY TALK ONLY EXAMPLE ooon 5C 2 5D COMPATIBILITY LANGUAGES 0 0000 aaaea raano anua 5D 1 5D 1 INTRODUCTION S
116. Thank you very much for your shopping on us if you need any other manual email me at ebay micromanuals com I will do my best to help you Please visit our website at www micromanuals com for more manuals If you find any others selling the manual made by me please email me also Attention Please The listing of this manual is to help those who need this manual to repair and maintain their equipment If you want to buy this manual you must agree that this manual is only charged for Labeling Service List Price Shipping and Handling Fee Thanks and enjoy reading MicroManuals or Micromanuals COM on Ebay 6080A 82A SYNTHESIZED RF SIGNAL GENERATOR Operator Manual l PN 861034 May 1990 Rev 1 11 90 Fl l IKE 1990 John Fluke Mfg Co Inc all rights reserved Litho in U S A COPYRIGHT AND DISCLAIMER NOTICE Copyright Agilent Technologies Inc Reproduced with the permission of Agilent Technologies Inc Agilent Technologies Inc 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 Agilent Technologies Inc is not liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material or data WARRANTY Notwithstanding any provision of any agreement the following warranty is exclusive The JOHN FLUKE MFG CO IN
117. This mode provides the optimum phase noise to distortion performance at 3 5 kHz FM deviation at Mod Frequencies of 0 3 to 3 kHz In FM Fixed Range mode total harmonic distortion is improved over a wide range of FM deviation with the lowest distortion near the lower end of each FM band In this mode it is possible to edit above or below the normal FM band limits since the normal FM autorange function is inhibited The Fixed Range mode locks to the FM band so that all subsequent adjustments made to the FM deviation and the RF output FRONT PANEL OPERATION MODULATION frequency with the edit knob are processed without the auto range If an attempt is made to edit either of these values beyond the range limit the STATUS annunciator flashes and the value is constrained to the limit When FM Fixed Range mode is enabled FM deviation or step entries that map into FM ranges other than the current range will cause the FM circuitry to rerange Fixed Range mode remains in effect with the new FM range locked in In addition a change in the RF output frequency can also force a FM rerange SYNTAX FRONT PANEL REMOTE Normal FM Ranging Mode C3 C FM_RANGE NORMAL Low Distortion FM Mode Cs 4 FM_RANGE LOWDISTORT Fixed Range FM Mode 3 2 FM_RANGE FIXED Using Low Rate FM Mode 4C 21 Certain applications require FM at low modulation rates but cannot tolerate the shortcomings associated with operating in the DCFM mode when the FM loop is unlocked
118. Units UNIT NAME COMPATIBILITY LANGUAGE 6080 LANGUAGE Hertz Kilohertz Megahertz Gigaherntz DB DBM or DBMW DB DB Millivolt Microvolt Nanovolt 5D 11 REMOTE OPERATION COMPATIBILITY LANGUAGES In the 6080 language new programming commands cause previous query responses to be flushed from the output queue In the compatibility language the output queue is not flushed on new programming commands For example SRE terminator SRE100 terminator clears the SRE response but IM lt terminator SM 100 lt terminator does not clear the IM response In the 6080 language if a query but not a terminator is received and the status data is requested to be transferred to the EEE 488 controller an error is generated and the output queue is flushed No error is generated in the compatibility language The bit values in the serial poll status byte are different Refer to the Checking the Instrument Status in Section 5A After a syntax error the 6080 language will ignore all characters until a terminator is found The compatibility language will discard errors until a terminator comma or semicolon is found The interface modes modes have been replaced with the IEEE 488 2 common commands OPC OPC and WAI defined in the IEEE 488 2 standard Refer to the heading Using the OPC OPC and WAI Commands in Section 5A for more information USING THE HP 8642 FAMILY LANGUAGE 5D 6
119. V or NV for Volts DBM DBUV DBMV or DBF for dB when specifying the bright digit position The default units are DBM Bright digit decade in AMPLITUDE display field with optional power voltage or DB units AMPL_BRT 10 UV AMPL_BRT 1 DBM Rejected during manual or single sweep Retrieves the decade of amplitude bright digit position None 1 Float Bright digit decade in AMPLITUDE display field 2 String DBM DBUV DBMV DB or V 1 0E 7 V Selects standard or alternate output level compensation data STD or ALT Rejected during sweep Retrieves the output level compensation state String STD or ALT Selects the amplitude compensation mode ALL or OUTPUT or NONE Rejected during sweep Retrieves the state of amplitude compensation mode None String ALL or OUTPUT or NONE Selects EMF output mode ON or OFF or 1 or 0 Rejected during sweep AMPL_EMFOUT Description Parameter Response AMPL_MANUAL Description Parameter Restrictions AMPL_RANGE Description Parameter Restrictions AMPL_RANGE Description Parameter Response AMPL_REL Description Parameter Restrictions AMPL_REL Description Parameter Response AMPL_SINCR Description Parameter Restrictions REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Retrieves the state of EMF output mode None String ON or OFF Increments or decrements t
120. WEEP Sweep Type Linear volts or logarithmic dB Sweep Modes Auto single or manual ADJUSTABLE PARAMETERS Sweep symmetry sweep speed sweep width and sweep increment Sweep Speed Minimum 30 ms increment selectable as minimum dwell time where dwell time can be 0 20 50 100 200 500 ms or 1 2 5 or 10s at each increment SWEEP OUTPUT AUX Connector Pin 5 0 to 10V 10 up to 4096 points in a stepped ramp load gt 2 kQ INTRODUCTION AND SPECIFICATIONS Table 1 1 Specifications for Model 6080A cont PEN LIFT OUTPUT AUX Connector Pin 4 TTL level high during sweep retrace load gt 2 kQ GENERAL SPECIFICATIONS Temperature Operating 0 to 50 C 32 to 122 F Nonoperating 40 to 75 C 40 to 167 F Operating Humidity Range 95 to 30 C 75 to 40 C and 45 to 50 C Operating Altitude Up to 10 000 ft Vibration Nonoperating 5 to 15 Hz at 0 06 in 15 to 25 Hz at 0 04 in and 25 to 55 Hz at 0 02 in double amplitude DA Shock Nonoperating bench handling per MIL T 28800C Class 5 Style E Electromagnetic Compatibility The radiated emissions induce lt 0 5 uV at RF carrier frequency into a 1 inch diameter 2 turn loop 1 inch from any surface as measured into a 50Q receiver Complies with Standards e CE03 of MIL STD 461B Power and interconnecting leads 0 015 to 50 MHz REO2 of MIL STD 461B 14 kHz to 10 GHz FCC Part 15 Class B e VDE 0871B CISPR 22 Size Width Height De
121. Y SWEEP INCREMENT RANGE RESOLUTION 6080A 1 Hzto 1056 MHz 1 Hz 6082A 1 Hzto 2112 MHz 1Hz SYNTAX numeric data EXAMPLE Set Frequency Sweep Increment to 230 MHz FRONT PANEL GJGCJ C amp J REMOTE FREQ_SINCR 230 MHZ 4E 5 FRONT PANEL OPERATION SWEEP Digital Frequency Sweep Example 4E 9 EXAMPLE Configure a digital frequency sweep From 500 MHz to 540 MHz with a sweep increment of 100 kHz and a dwell of 0 ms at each point Enable Single sweep for this configuration 1 Select 520 MHz RF frequency FRONT PANEL eo 5_ 2 J Co mav REMOTE FREQ520 MHZ 2 Select 40 MHz frequency sweep width and select frequency as the active sweep field FRONT PANEL C4 Co REMOTE FREQ_SWIDTH 40 MHZ SWEEP_FIELD FREQ 3 Select 100 kHz frequency sweep increment FRONT PANEL ae REMOTE FREQ_SINCR 0 1 MHZ 4 Select symmetric sweep FRONT PANEL Co REMOTE SWEEP_SYM SYMM 5 Select 0 ms sweep dwell time FRONT PANEL sj Co REMOTE SWEEP_DWELLO MS 6 Enable single sweep FRONT PANEL 2 REMOTE SWEEP SINGLE AMPLITUDE SWEEP 4E 10 The Signal Generator allows both digital linear and digital logarithmic amplitude sweep If all amplitude sweep parameters are specified in linear voltage quantities the sweep will be digital linear If all amplitude sweep parameters are specified in logarithmic dBm dBmV dByV or dBf quantities the sweep will be digital logarithmic Four parameters define the sweep The RF
122. Z Returns error code and frequency where automatic comp procedure failed If no errors were generated a zero is returned for both the error code and frequency responses None 1 Integer Error Code 2 Float Frequency 3 String HZ Exits calibration compensation procedure None Only allowed when performing a calibration or compensation procedure Retrieves the RF output frequency during calibration compensation procedure None 1 Float Output frequency 2 String HZ Only allowed when performing a calibration procedure or attenuator output or subsynthesizer compensation procedure CC_HETADJ Description Parameter Responses CC_RDAM Description Parameter Restrictions CC_RDDVM Description Parameter Restrictions CC_RDFM Description Parameter Restrictions CC_RDFREQ Description Parameter Restrictions CC_RDPOWER Description Parameter Restrictions CC_RESUME Description Parameter Restrictions REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Returns Het band frequency and level adjustments where Het level adjustment can be made following an unsuccessful output compensation procedure If no output compensation procedure has been performed since power on a zero is returned for both frequency and adjustment responses None 1 Float Frequency 2 String HZ 3 Float Level Adjustment 4 String DB
123. aa eon FS 5A 4 5A 10 Multiple Commands 00 cece cece eee ete ee a a 5A 5 5A 11 Command Processing 2c eee eee aA a EE 5A 5 5A 12 Command Restrictions 0 0 0 cece ririri edsr uani kada ENEEK 5A 5 5A 13 Commands That Require the CAL COMP Switch To Be Set 5A 5 5A 14 REMOTE LOCAL STATE TRANSITIONS 0 cece ences 5A 6 5A 15 CHECKING THE INSTRUMENT STATUS 0 eee eee eee 5A 7 5A 16 Serial Poll Status Byte STB 0 cece cece eee cence een ees 5A 7 5A 17 BIT ASSIGNMENTS FOR THE STB AND SRE 5A 7 5A 18 SERVICE REQUEST LINE SRQ 2 cece eee eee eens 5A 9 5A 19 SERVICE REQUEST ENABLE REGISTER SRE 5A 9 5A 20 PROGRAMMING THE STB AND SRE 0 0000005 5A 10 SA 21 Event Status Register ESR 2 0 0 ccc ccc cece eect een eens 5A 10 SA 22 BIT ASSIGNMENTS FOR THE ESR AND ESE 5A 10 5A 23 EVENT STATUS ENABLE REGISTER ESE 5A 12 5A 24 PROGRAMMING THE ESR AND ESE 2 000055 5A 12 5A 25 O tput Queue Tige sia ie e a EEE AE E E EE 5A 13 5A 26 Error Queue herrana peeke a SaaS tees See ea ane aeons al 5A 13 5A 27 Instrument Status Register ISR 0 eee cece ee eee eens 5A 14 5A 28 BIT ASSIGNMENTS FOR THE ISR ISCR ANDISCE 5A 14 5A 29 INSTRUMENT STATUS CHANGE REGISTER ISCR 5A 14 iv continued on page v TABLE OF CONTENTS continued SECTION TITLE PAGE 5A 30 INS
124. ach command is separated by a 10 INIT PORT O REMOTE 2 20 PRINT 2 FREQ 100 MHZ AMPL 25 DBM RFOUT ON Command Processing 5A 11 All commands are processed in the order they are received Each command is completely processed before the next is processed Table 5B 3 lists all the commands processed by the Signal Generator Commands are received and executed at all times Some restrictions may apply in certain Signal Generator modes of operation Command Restrictions 5A 12 During sweep operation some commands are rejected and some are processed differently This information is noted in Table 5B 3 with the description of the commands In local all calibration and compensation commands are rejected CAL_AM CAL_FM CAL_LEVEL CAL_ REFOSC CMEM _FIX COMP_ATT COMP_COARSE COMP_OUT COMP_OUTDEF COMP_SUBSYN COMP_SUM During calibration and compensation procedures only a subset of commands are allowed Refer to the section Closed Case Calibration Adjustments and the section Compensation Procedures in the Service Manual for details In listen only all calibration and compensation commands and all the queries those that end with a are rejected Commands That Require the CAL COMP Switch To Be Set 5A 13 CAUTION Great care should be exercised in using these commands as they may alter the Signal Generator calibration compensation data 5A 5 REMOTE OPERATION REMOTE PROGRAMMING The fo
125. al Function 721 FREQUENCY BAND MHz MAXIMUM DEVIATION RADIANS 0 1 to 15 15 to 32 32 to 64 64 to 128 128 to 256 256 to 512 512 to 1056 1056 to 2112 Accuracy 5 of setting 0 1 radian at 1 kHz rate Distortion NOTE 5 lt 2 THD from maximum deviation to 1 2 max deviation and lt 1 THD at 1 2 maximum deviation or less at 1 kHz rate 3 dB Bandwidth AC coupled phase modulation 20 Hz to 15 kHz DC coupled phase modulation de to 15 kHz nnn ttt tt NOTE 4 Phase modulation specifications are valid where RF frequency mod frequency gt 150 kHz NOTE 5 Valid for rates from 50 Hz to 50 kHz in high bandwidth mode Does not include effects of residual phase noise INTRODUCTION AND SPECIFICATIONS Table 1 2 Specifications for Model 6082A cont High Rate Phase Modulation 3 dB Bandwidth Special Function 721 AC coupled phase modulation 20 Hz to 100 kHz DC coupled phase modulation dc to 100 kHz Incidental AM valid for f gt 500 kHz lt 1 AM at 1 kHz rate for peak deviation lt 10 radians PULSE MODULATION For RF Output Frequencies gt 10 MHz On Off Ratio 80 dB minimum Rise and Fall Times lt 15 ns 10 to 90 Level Error For pulse widths gt 50 ns the power in the pulse is within 0 7 dB of the measured CW level Duty Cycle External Modulation 0 to 100 Repetition Rate External Modulation DC to 10 MHz Internal Modulation Internal rates and widths External Modulation The
126. al ac coupled AM modulation signal is more than 2 above the nominal 1V pk input requirement Indicates that the external ac coupled AM modulation signal is more than 2 below the nominal 1V pk input requirement Indicates that the external ac coupled FM modulation signal is more than 2 above the nominal 1V pk input requirement Indicates that the external ac coupled FM modulation signal is more than 2 below the nominal 1V pk input requirement V MOD LEV Indicates that the value displayed is the peak modulation output Level in volts Hz Indicates that the value displayed is the modulation frequency in Hz kHz or kHz MOD FREQ 2 FREQUENCY A signed 10 digit display with four annunciators that displays RF output DISPLAY frequency parameters of the Signal Generator It is also used to display FIELD Special Function codes status codes or stored recalled memory location codes Indicates that the Step Size Entry and the Step Increment and Decrement keys affect the RF frequency Indicates that the displayed frequency is relative to a reference frequency SPCL Indicates certain Special Functions are enabled that are not otherwise annunciated Pressing the key causes the enabled Special Function codes to be displayed SWP Indicates that the SWEEP ON OFF keys apply to frequency sweep G AMPLITUDE A signed 3 1 2 digit display with eight annunciators that displays RF DISPLAY output ampli
127. alue when the power is turned on 5A 9 a La a ia ih A ae Ag Si NN a et aeeebag hn Hie REMOTE OPERATION REMOTE PROGRAMMING PROGRAMMING THE STB AND SRE 5A 20 The SRE can be set with the remote command SRE and with a front panel special function sequence By setting the bits in the SRE the associated bits in the Serial Poll Status Byte can be enabled The following sample program enables the Error Available EAV bit 10 THIS PROGRAM SETS EAV IN THE SRE 20 GOSUB 100 30 IF A AND 16 4 0 THEN A A 16 HO PRINT 2 SRE A 50 GOSUB 100 60 END 100 PRINT 2 SRE 110 INPUT 2 A 120 PRINT SRE 3A 130 RETURN GET AND PRINT OLD SRE ENABLE EAV BIT 4 GET AND PRINT NEW SRE ASK FOR THE SRE CONTENTS RETRIEVE THE REGISTER CONTENTS The following front panel key sequence sets the SRE to be 16 EAV enabled ENTER DISPLAY SHOWS EXPLANATION Ca SrE 12 Current value fe 1 SE 16 New value The following program generates an error and checks the Serial Poll Status Byte Enable the EAV bit with the examples above 10 THIS PROGRAM GENERATES AN ERROR AND CHECKS IT 20 PRINT 2 FREQ 100 GHZ CAN T OUTPUT 100 GHZ 30 Af SPL 2 DO A SERIAL POLL 40 IF A AND 144 0 THEN PRINT EAV and SRQ should have been set 50 PRINT 2 STB RETRIEVE BYTE 60 INPUT 2 At 70 IF A AND 16 0 THEN PRINT EAV should have been set Event Status Register ESR 5A 21 The Event
128. amplitude in effect before the sweep is enabled becomes the Center Amplitude if symmetric sweep is selected or the start amplitude if asymmetric sweep is selected It is generically called the Center Amplitude A The amplitude sweep width Aw is the total width of the sweep and may be either a positive or a negative quantity 4E 6 FRONT PANEL OPERATION SWEEP The amplitude sweep increment Ai is the increment size and must be a positive quantity The sweep increment may be larger than the absolute value of the sweep width Sweep symmetry is selected by Special Function The following equations show the relationship of these parameters NOTE The progression of the sweep is always from Al to A2 Aw can be negative Symmetric sweep ASYM annunciator is off Al start amplitude Ac Aw 2 A2 end amplitude Ac Aw 2 Asymmetric sweep ASYM annunciator is lit Al start amplitude Ac A2 end amplitude Ac Aw Certain sweep parameters may be changed while sweep is active Any parameter change that would result in an invalid sweep condition is rejected and the sweep continues with the existing sweep parameters If an attempt is made to start a sweep with such a combination of parameters the sweep mode selection is rejected During auto sweep sweep width and sweep increment can be inspected and modified the center amplitude can be edited or stepped and sweep symmetry may be changed If the entry is valid
129. an alternate language for emulating a supported model of signal generator refer to Section 5D If anything but the 6080 language is selected the Signal Generator will not respond to the commands described in this section See Section 5D for more information Verify that the default 6080 language is selected by entering sex 1 2 to display the current IEEE 488 language in the FREQUENCY display field If the display reads anything but L6080 press 0 to select the default language The language setting is stored in non volatile memory and is retained when the power is turned off Satis wate hye oat p cetan rice ale A Ne oe a A a se a sede ahaa cy uso eNotes idealised Section 5A Remote Programming INTRODUCTION 5A 1 Communication between the controller and the Signal Generator consists of interface messages and commands Interface messages are defined by the IEEE 488 1 standard and control the lowest level of bus communication Interface messages are handled automatically by the controller The interface messages that the Signal Generator accepts and sends are listed in Tables SA 4 and 5A 5 Commands are sent to the Signal Generator literally for example with the Fluke 1722A BASIC PRINT statement The commands are described in Tables 5B 1 and 5B 3 There are three types of commands 1 Common commands Commands that start with an asterisk which are defined by the IEEE 488 2 standard 2 Device dependent commands C
130. and 5B 30 LOWNOISE remote command 5B 31 MANUAL key 3 9 Manuals Operator Reference Guide 1 2 Remote Programming Reference Guide 1 2 6080A and 6082A service 1 3 MEM_DIVIDER remote command 5B 31 MEM_DIVIDER remote command 5B 31 MEM_ERASE remote command 5B 31 MEM_LOCK remote command 5B 31 MEM_LOCK remote command 5B 31 Memory see instrument state memory MEML_RESET remote command 5B 32 MHz V key 3 8 MOD FREQ key 3 7 MOD LEV key 3 7 MOD OUTPUT connector 3 9 MOD_DISPLAY remote command 5B 32 MOD_DISPLAY remote command 5B 32 MODF remote command 5B 32 MODPF remote command 5B 32 MODEF_BRT remote command 5B 33 MODF_BRT remote command 5B 33 MODF_STEP remote command 5B 33 MODEF_STEP remote command 5B 33 MODL remote command 5B 33 MODL remote command 5B 33 MODL_BRT remote command 5B 34 MODL_BRT remote command 5B 34 MODL_STEP remote command 5B 34 MODL_STEP remote command 5B 34 MODOUT remote command 5B 34 MODOUT remote command 5B 34 Modulation 4C 1 Frequency and step size 4C 2 Level and step size 4C 3 Oscillator 4C 1 Selecting the waveform 4C 4 MOD_WAVE remote command 5B 32 MOD_WAVE remote command 5B 32 Mounting rack 2 1 Nonvolatile memory see instrument state memory Numeric Formatting for data input HP 8642 language 5D 13 Keypad 3 8 OPC remote command Defined 5B 35 How to use 5A 22 OPC remote command Defined 5B 35 How to use 5A 22 Operation Front panel 4 1 Remote
131. atibility Language Commands 6070 amp 6060 amp DESCRIPTION 6071 6061 Set up interface modes COMPATIBILITY COMMAND Position amplitude bright digit Disable enable external AM Disable enable internal AM Program AM depth Program amplitude sweep incr Program amplitude Start auto sweep operation Program amplitude sweep width Clear IEEE output buffer Clear error status Device clear Configure trigger buffer Disable enable external DCAM Position FM bright digit Disable enable DC coupling Step down FM Disable enable external DCFM Biank display Sequence down to next mem loc Program FM step Step up FM Define RAM ROM base address Disable enable error mode Display enter erase repeat count Position freuqency bright digit Step down frequency Disable enable external FM Disable enable internal FM Program FM deviation Program frequency Program frequency step Step up frequency Go to alternate language Query attenuator log Input I O bit Query instrument ID Query elapsed time Query interface modes Query status register enable Query option loading 5D 7 REMOTE OPERATION COMPATIBILITY LANGUAGES 5D 8 Table 5D 3 Compatibility Language Commands cont COMPATIBILITY 6070 amp 6060 amp COMMAND DESCRIPTION 6071 6061 Query operation complete Query rejected entry status Query instrument serial number Query self test status
132. ation subsets Entering sect 8 o ji 2 displays the current memory divider settings The settings of all four of the dividers are displayed at once Inactive dividers are displayed as location 00 If a numeric key is pressed while the divider settings are displayed it is interpreted as a new divider entry and the Signal Generator enters the memory divider entry mode cere Seer thee een FRONT PANEL OPERATION INSTRUMENT STATE MEMORY Once in the memory divider entry mode the Signal Generator expects settings for all four dividers to be entered before any are updated Only numeric keys and the key are allowed All other keys immediately exit the entry mode and all partial entries are discarded The key skips to the next divider entry if no partial entry has been made to simplify the entry process if some of the dividers are to be changed but others are to be left unchanged A divider is deleted when its location is specified as 00 After all four divider settings have been updated the entries are sorted and redisplayed for five seconds The following example illustrates the memory divider setting display and the memory divider entry mode EXAMPLE Current divider settings are 00 00 07 22 Change the divider settings to 00 07 14 31 FRONT PANEL Enter et 8 _ 0 2_ The display shows 00 00 07 22 To change divider 1 from 00 to 14 entries will be sorted automatically enter L1 The display s
133. ator holds off the IEEE 488 bus with the handshake lines When the Signal Generator has processed a data byte from the full input buffer it then completes the handshake allowing the controller to send another data byte The Signal Generator clears the input buffer at power on and on receiving the DCL Device Clear or SDC Selected Device Clear messages from the controller COMMANDS 5A 9 5A 4 Table 5B 1 summarizes the commands by function Table 5B 3 provides protocol details of the remote commands The commands duplicate almost all activities that can be initiated from the front panel in local operation Separate headings for each command in the tables provide the parameters and responses if any and an example for cases in which the parameters are not self explanatory REMOTE OPERATION REMOTE PROGRAMMING Multiple Commands 5A 10 If the controller on the IEEE 488 bus is a Fluke 1722A commands are sent one at a time or combined in Fluke BASIC PRINT statements For example if the Signal Generator bus address is 2 use the following BASIC program statements to set the Signal Generator to output 100 MHz and 25 dBm 10 INIT PORT 0 REMOTE 2 20 PRINT 2 FREQ 100 MHZ 30 PRINT 2 AMPL 25 DBM 4O PRINT 2 RFOUT ON PUT SIGNAL GENERATOR IN THE REMOTE STATE PROGRAM 100 MHZ PROGRAM 25 DBM TURN THE RF OUTPUT ON The same results can be achieved by combining the three commands in one statement as follows note that e
134. cal cycle The time required to perform a DCFM cal cycle is determined by the selected FM band see paragraph 4C 13 In most cases the DCFM cal cycle completes in 0 5 seconds However if FM deviation in excess of 250 kHz is selected the DCFM cal cycle can take up to 5 seconds Once DCFM has been enabled the message PAUSE appears in the FREQUENCY display field When the hardware has settled the display returns to its normal state ace RE LR a pn nee nar i te eae FRONT PANEL OPERATION MODULATION While DCFM is enabled the RF output frequency will drift with time To remove the offset caused by this drift a DCFM cal cycle should be performed as necessary To force a DCFM cal cycle to occur ACFM should be enabled by pressing the Ext AF key followed by re enabling DCFM External DC M is identical to external AC M except that the external FM M modulation input is de coupled Pressing the key while the FM M display shows M in radians units enables the dc couplec path from the external FM pM input connector and enables the FM M circuitry programmed in the phase modulation mode The external DC M mode is entirely different from external DCFM as the FM oscillator loop remains locked FM Bands 4C 19 The interdependence between RF output frequency bands and FM bands is summarized in Tables 4C 2 and 4C 3 Table 4G 2 shows the FM band limits for normal FM mode Table 4C 3 shows these limits when Low Distortion FM is
135. ce is ready to accept another message Figure 5A 3 Bit Assignments for ESR and ESE cont EVENT STATUS ENABLE REGISTER ESE 5A 23 A mask register called the Event Status Enable register ESE allows the controller to enable or mask disable each bit in the ESR When a bit in the ESE is 1 the corresponding bit in the ESR is enabled When any enabled bit in the ESR is 1 the ESB bit in the Serial Poll Status Byte also goes to 1 The ESR bit stays 1 until the controller reads the ESR or does a device clear a selected device clear or sends the clear status CLS command to the Signal Generator The ESE is stored in non volatile memory and is restored when the power is turned on PROGRAMMING THE ESR AND ESE 5A 24 5A 12 To read the contents of the ESR send the remote command ESR The ESR is cleared set to 0 every time it is read To read the contents of the ESE send the remote command ESE The ESE is not cleared when it is read When either register is read the Signal Generator responds by sending a decimal number that represents bits 0 through 15 The following sample program retrieves the contents of the ESR and ESE registers 10 THIS PROGRAM READS THE ESR AND THE ESE REGISTERS 20 PRINT 82 ESR ASK FOR THE ESR CONTENTS 30 INPUT 2 AZ RETRIEVE THE REGISTER CONTENTS HO PRINT 2 ESE ASK FOR THE ESE CONTENTS 50 INPUT 2 B2 RETRIEVE THE REGISTER CONTENTS so s o s 60 PRINT ESR sag DISPLAY THE
136. ceeding towards the smaller amplitude AMPLITUDE SWEEP WIDTH RANGE RESOLUTION 0 1 dB to 20 dB 0 1 dB 10 nV to 2 24 V 3 digits SYNTAX numeric data EXAMPLE Set Amplitude Sweep Width to 12 dB FRONT PANEL C1 C2 REMOTE AMPL_SWIDTH 12 DB Setting Amplitude Sweep Increment 4E 12 The amplitude sweep increment can be selected for entry by first pressing the amet key to select the AMPLITUDE display field then pressing the SWEEP key Upon programming a new sweep increment the new value is held momentarily in the AMPLITUDE display field AMPLITUDE SWEEP INCREMENT RANGE RESOLUTION 0 1 to 20 dB 0 1 dB 10 nV to 2 24 V 3 digits SYNTAX numeric data Crew EXAMPLE Set amplitude sweep increment to 0 5 dB FRONT PANEL ae LCJ G REMOTE AMPL_SINCR 0 5 DB 4E 8 FRONT PANEL OPERATION SWEEP Digital Amplitude Sweep Example 4E 13 EXAMPLE Configure a digital amplitude sweep from 20 0 dBm to 15 0 dBm with a sweep increment of 0 1 dB and a dwell of 100 ms at each point Enable Auto sweep for this configuration 1 Select 20 0 dbm RF amplitude FRONT PANEL Cre 2 07 Ce REMOTE AMPL 20 DBM 2 Select 5 dB amplitude sweep width and select amplitude as the active sweep field FRONT PANEL Cs J REMOTE AMPL_SWIDTH 5 DB SWEEP_FIELD AMPL 3 Select 0 1 dB amplitude sweep increment FRONT PANEL CJC REMOTE AMPL_SINCR 0 1 DB 4 Select asymmetric sweep FRONT PANEL CJ
137. ces in the system SHIELD SRQ NDAC DAV DIO4 DIO2 IFC NFRO Eol DIO3 DIO1 SHIELD LOGIC GND GNO GNO DIO8 DIO6 GND 10 8 6 Figure 5A 5 IEEE 488 Connector Pinout Rear Panel View 5A 21 REMOTE OPERATION REMOTE PROGRAMMING REMOTE PROGRAM EXAMPLES 5A 39 The following programs are written in BASIC for the Fluke 1722A Instrument Controller Using the OPC OPC and WAI Commands 5A 40 The OPC OPC and WAI commands let the programmer maintain control of the order of execution of commands that could otherwise be passed up by subsequent commands Ifa FREQ command has been sent the output can be checked to see if it has settled by sending the query OPC As soon as the FREQ command has completed output settled a 1 appears in the output queue The OPC command should always be followed with a read command for example in Fluke BASIC INPUT 2 A The read command causes program execution to pause until the addressed instrument responds The following sample program shows how OPC can be used 10 PRINT 2 FREQ 100MHZ OPC SIGNAL GENERATOR ADDRESS IS 2 20 INPUT 2 A READ 1 FROM SIGNAL GENERATOR 30 PROGRAM HALTS HERE UNTIL A 1 IS PUT INTO THE OUTPUT QUEUE 4Q PRINT OUTPUT SETTLED The OPC command is similar in operation to the OPC query except that it sets bit 0 OPC for Operation Complete in the Event Status Register to 1 rather than sending a 1 to the output q
138. ch option name includes the option number and a description If the option is not installed a zero is returned instead of the string Examples 130 High Stability Reference 830 Rear Output 0 830 Rear Output PHASE Description Adjusts the phase of the RF carrier Parameter Phase adjustment with degrees units PHASE 1 DEG Example Restrictions Rejected during sweep 5B 35 REMOTE OPERATION REMOTE COMMAND TABLES PHASE Description Parameter Response PHASE_CLK Description Parameter Restrictions PHASE_CLK Description Parameter PHASE_ZERO Description Parameter Restrictions PRESET Description Parameter PUD Description Parameter Table 5B 3 Remote Commands cont Retrieves the relative phase adjustment None 1 Float Relative phase adjustment 2 String DEG Programs the measured phase adjustment clock frequency Note that the rear panel CAL COMP switch must be set to 1 on Clock frequency with frequency units Rejected during sweep Retrieves the phase adjustment clock frequency 1 Float Clock frequency 2 String Hz Zeros the relative phase adjustment None Rejected during sweep Resets instrument to preset state See Appendix A Instrument Preset State None Defines protected user data data This command allows you to store a string of bytes in non volatile memory This command works only whe
139. checking remote Codes 4G 2 Data structure overview 5A 8 Key 3 9 Status keys configuring 4F 5 Queue 5A 16 STATUS remote command 5B 39 STATUS remote command 5B 40 Status checking remote 5A 7 Bit assignments for the STB and SRE 5A 7 Event status register 5A 10 Instrument status register 5A 14 Serial poll status byte 5A 7 STB see serial poll status byte STB remote command 5B 38 Step Key 3 7 Key special functions 4F 5 Size defaults 4 3 STEP_AM remote command 5B 40 STEP_AMPL remote command 5B 40 STEP_FIELD remote command 5B 40 STEP_FIELD remote command 5B 40 STEP_FM remote command 5B 41 STEP_FREQ remote command 5B 41 STEP_MODF remote command 5B 41 STEP_MODL remote command 5B 41 STO key 3 8 Storing Instrument states 4D 3 Single parameters 4D 6 SU remote command 5B 41 Sweep 4E 1 Digital amplitude sweep example 4E 9 Digital frequency sweep example 4E 6 Dwell time 4E 3 Modes summary 4E 2 Selecting frequency or amplitude 4E 2 Selecting symmetric or asymmetric 4E 3 SWEEP INCR key 3 8 SWEEP ON OFF keys 3 9 SWEEP remote command 5B 41 SWEEP remote command 5B 41 SWEEP WIDTH key 3 7 SWEEP_DWELL remote command 5B 41 SWEEP_DWELL remote command 5B 42 SWEEP_FIELD remote command 5B 42 SWEEP_FIELD remote command 5B 42 SWEEP_SYM remote command 5B 42 SWEEP_SYM remote command 5B 42 Syntax rules for remote commands 5A 2 Talker listener operation 5 2 Talk only listen only operation 5C 1
140. cific operating mode of the Signal Generator Examples are RF output frequency Relative mode Low rate FM mode and High rate M mode All of the active stored mode Special Function numeric codes can be viewed by pressing the key Each of the stored mode Special Functional groups is allocated a decade of Special Function numeric codes For example Relative RF output frequency OFF ON is 20 21 low rate FM OFF ON is 710 711 and High rate pM OFF ON is 720 721 The unit digit of the code determines whether functions of this type are off or on 0 OFF 1 ON The Signal Generator s default preset state forces these functions to the OFF state except for the display which is on by default Most enabled stored mode functions are cleared with Special Function 00 Some of the stored mode functions have more than two choices For example there are 10 selections 890 through 899 for sweep dwell time and three selections 750 through 752 for the internal modulation waveform Again the unit digit of the code determines the selection within the decade with the zero state the default state Immediate action Special Functions typically perform an immediate action without affecting the stored state of the Signal Generator Examples of immediate action functions are commands to display the software revision level and execute self tests Since immediate action functions do not change the stored state of the Signal Generator their Special Function numbers
141. code must contain both digits of the two digit memory location code When the second digit key of the location code is released the recall operation is performed From Remote the RCL command is used to recall an instrument state EXAMPLE Recall the default memory location 97 program the RF Frequency to 6 MHz and store it in memory location 06 FRONT PANEL CI Ce Co REMOTE RCL 97 FREQ 6 MHZ SAV 6 4D 3 FRONT PANEL OPERATION INSTRUMENT STATE MEMORY 4D 4 RECALLING A SEQUENCE OF INSTRUMENT STATES 4D 3 The following information describes the method for sequencing through memory locations containing the Signal Generator instrument states Note that memory sequence operations perform no action while any digital sweep is active 1 The sea key allows the stored instrument states to be sequentially recalled The sequence operation recalls the next higher memory location starting from the most recent memory location stored or recalled When the highest location is reached the sequence starts over again at location 01 in remote the SEQ UP command accomplishes the same result 2 While seo js pressed the next memory location number is displayed and the memory location is recalled While this key is pressed the function continues to sequence up through through memory locations 3 The previous memory location may be recalled byentering ree This is equivalent to a sequence down function While t
142. creases the instrument s operating temperature by approximately 3 C POWER REQUIREMENTS 2 4 The Signal Generator uses a line voltage of 110 120V ac 10 with a 2 0A fast blow fuse or 220 240V ac 10 with a 1 0A fast blow fuse The line frequency must be between 48 and 63 Hz Power consumption of the Signal Generator is less than 200 VA INSTALLATION 2 2 Table 2 1 Standard Equipment MODEL OR PART NUMBER 6080A or 6082A See Table 2 2 and Figure 2 1 861034 Signal Generator Line Power Cord 6080A 82A Operator Manual 6080A 82A Operator Reference Guide 882154 6080A 82A Remote Programming Reference Guide 882147 6080A 82A Special Functions Decal 860911 6080A Service Manual or 6082A Service Manual Two BNC dust caps 868914 881888 478982 Table 2 2 Line Power Cord Types Available from Fluke VOLTAGE CURRENT FLUKE OPTION NUMBER North America 120V 15A North America 240V 15A Universal Euro 220V 16A United Kingdom 240V 13A Switzerland 220V 10A Australia 240V 10A South Africa 240V 5A LINE VOLTAGE SELECTION AND FUSE REPLACEMENT 2 5 CAUTION To prevent instrument damage verify that the correct fuse is installed for the line voltage setting and that the line voltage setting is compatible with local line power before plugging in the line cord The Signal Generator arrives from the factory configured for the line voltage normally appropr
143. cucnes 3 1 3 5 REAR PANEL FEATURES 0 ccc cece cence cece OEE TA 3 1 4 FRONT PANEL OPERATION 0 cc cc cccceccccaccvcereececenes 4 1 4 1 INTRODUCTION citi ccie see we aa aaa a a a Debates 4 4 2 RECALLING PREVIOUS INSTRUMENT SETTINGS AT POWER UP y ncsleese ots anes Maa hee aatunadhud awe bare E e E 4 1 4 3 ENTERING AND MODIFYING PARAMETERS 000000s 4 1 i continued on page ii TABLE OF CONTENTS continued SECTION TITLE PAGE 4 4 Entering Parameters Directly 0 0 00 ccc c cece ence e ene e ene ees 4 2 4 5 Editing the Bright Digit 0 0 2 2 0 cece ccc cece een een ence ees 4 2 4 6 Incrementing and Decrementing by Step 2 cece ee eee 4 3 4A RF OUTPUT FREQUENCY ccc eee cece eect eee ens 4A 1 4A 1 INTRODUCTION 20 ccc cece cece nent e een een e eee n eters 4A 4A 2 SETTING RF OUTPUT FREQUENCY ccc cence eee 4A 1 4A 3 SETTING RF OUTPUT FREQUENCY STEP SIZE 4A 2 4A 4 USING RF OUTPUT FREQUENCY RELATIVE MODE 4A 2 4A 5 ADJUSTING THE PHASE OF THE RF CARRIER 4A 3 4A 6 USING AN EXTERNAL FREQUENCY REFERENCE 4A 3 4A 7 RF OUTPUT FREQUENCY BANDS 0 cece ccc cc nee eens 4A 4 44 8 RF OUTPUT BLANKING DURING FREQUENCY CHANGES 4A 4 4B RF OUTPUT AMPLITUDE ccc cece ce cence eee eee tense eee 4B 1 4B 1 INTRODUCTION 0c c cece cece eee teen eee tee eee ee
144. d external pulse modulation may be enabled simultaneously External pulse modulation input is always dc coupled Activating External Pulse Modulation 4C 24 External Pulse is enabled by pressing the key from the front panel or with the EXT_PULSE ON command in remote The EXT annunciator is lit when External Pulse is enabled Pressing the key again disables External Pulse Mode as does the EXT_PULSE OFF command in remote External pulse modulation input is always dc coupled and can be driven by a TTL compatible signal External pulse modulation is triggered at a 1V threshold crossing any modulating signal applied tothe EXT front panel connector causes full scale output when the input signal exceeds the threshold and full attenuation when the input signal is below the threshold Activating Internal Pulse Modulation 4C 25 Internal pulse modulation is enabled with a Special Function command from the front panel or with the INT_PULSE command in remote The INT n annunciator is lit when internal pulse is enabled Activating internal pulse modulation causes the internal modulation oscillator to configure itself as a pulse generator More about this mode of operation is described under the next heading SYNTAX FRONT PANEL REMOTE Turn Off Internal C4 Ce INT_PULSE OFF Pulse Modulation Turn On Internal eal a GJ INT_PULSE ON Pulse Modulation FRONT PANEL OPERATION MODULATION Using the Mod Oscillator as a Pulse Gene
145. d time Programs alternate attenuator settings Executes display test Executes self test REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 2 Units Used with Remote Commands DESCRIPTION Frequency hertz Frequency kilohertz Frequency megahertz Frequency megahertz Frequency gigahertz Voltage amplitude volts Voltage amplitude millivolts Voltage amplitude microvolts Voltage amplitude nanovolts Voltage amplitude decibels referenced to 1 millivolt Voltage amplitude decibels referenced to 1 microvolt Ratio decibels Power amplitude decibels referenced to 1 milliwatt Power amplitude decibels referenced to 1 milliwatt Power amplitude decibels referenced to 1 femtowatt Power amplitude decibels referenced to 1 femtowatt Ratio AM depth percent Ratio AM depth percent Angle RF Frequency Phase Adjust degrees Angle M phase radians Time seconds Time milliseconds Time microseconds 5B 7 REMOTE OPERATION REMOTE COMMAND TABLES Description Parameter Examples Restrictions Description Parameter Responses Example AM_BRT Description Parameter Examples Restrictions AM_BRT Description Parameter Responses Example AM_STEP Description Parameter Restrictions AM_STEP Description Parameter Responses Table 5B 3 Remote Commands Programs the AM depth in perce
146. decrements the active manual frequency sweep by specified number of counts Note that the sign of sweep width affects the outcome of this operation Number of counts to increment or decrement the active manual frequency sweep Only allowed during manual frequency sweep 5B 25 REMOTE OPERATION REMOTE COMMAND TABLES 5B 26 FREQ_REL Description Parameter Restrictions FREQ_REL Description Parameter Response FREQ_SINCR Description Parameter Example Restrictions FREQ_SINCR Description Parameter Responses Example FREQ_STEP Description Parameter Restrictions FREQ_STEP Description Parameter Responses Example Table 5B 3 Remote Commands cont Selects relative frequency mode Refer to Section 4A RF Frequency for more details ON or OFF or 1 or 0 Rejected during sweep Retrieves the state of relative frequency mode None String ON or OFF Programs the frequency sweep increment in Hz The default units are HZ Sweep increment with optional frequency units FREQ_SINCR 123 322 KHZ Rejected during manual or single sweep Retrieves the frequency sweep increment None 1 Float Frequency sweep increment 2 String HZ 1 233220000E 05 HZ Programs the frequency step size in Hz The default units are HZ Frequency step size with optional frequency units Rejected during manual or single sweep Retrieves the frequency step size N
147. ds to a serial poll The status byte can also be retrieved with the STB command The value of this byte at power on is determined by the value of the service request enable register SRE which is saved in non volatile memory BIT ASSIGNMENTS FOR THE STB AND SRE 5A 17 The bits in the Serial Poll Status Byte STB and Service Request Enable Register SRE are assigned as shown in Figure 5A 2 5A 7 REMOTE OPERATION REMOTE PROGRAMMING Instrument Status Change Enable Register Read Using ISCE Write to Using ISCE Service Request Generation SRQ ON IEEE BUS instrument Status Register Read Using ISR Figure 5A 1 instrument Status Overview 5A 8 REMOTE OPERATION REMOTE PROGRAMMING Requesting service The RQS bit is set to 1 whenever bits ESB MAV EAV ISCB or SAV change from 0 to 1 and are enabled 1 in the SRE When RQS is 1 the Signal Generator asserts the SRQ control line on the IEEE 488 interface You can do a serial poll to read this bit to see if the Signal Generator is the source of an SRQ Master summary status Set to 1 whenever bit ESB MAV EAV ISCB or SAV is 1 and enabled 1 in the SRE This bit can be read using the STB command Is set to 1 when one or more enabled ESR bits are 1 Message available The MAV bit is set to 1 whenever data is available in the Signal Generator s IEEE 488 interface output buffer Error available An error has occurred and an error code is available to
148. dshake capability Complete acceptor handshake capability Basic talker serial poll talk only mode Unaddress if MLA No extended talker capability Basic listener operation listen only mode Unaddress if MTA No extended listener capabilities Full service request capability with bit maskable SRQ Full remote local capability including local lockout No parallel poll capability Device clear capability Device trigger capability No bus control capability Tri state drivers BUS COMMUNICATION OVERVIEW 5A 34 Communication between the controller and the Signal Generator takes place using commands established by IEEE 488 standards and commands specifically related to the Signal Generator The commands in Tables 5B 1 and 5B 3 are all the remote commands both common and device dependent Definitions of the different types of messages used on the IEEE 488 bus follow Device Dependent Commands Device Dependent commands are messages used to transfer information directly between the Signal Generator and the IEEE 488 controller Some commands cause an action to take place in the Signal Generator Others called queries in the REMOTE OPERATION REMOTE PROGRAMMING IEEE standards ask for information and always generate a response message from the instrument While message format is governed by IEEE 488 standards messages themselves are unique to the Signal Generator For example device dependent commands are used to set
149. e of FM OM bright digit position Moves bright digit to specified decade in frequency field Retrieves decade of frequency bright digit position Moves bright digit to specified decade in modulation freq field Retrieves decade of modulation frequency bright digit position Moves bright digit to specified decade in modulation level field Retrieves decade of modulation level bright digit position 5B 5 REMOTE OPERATION REMOTE COMMAND TABLES 5B 6 STATUS ERROR CLS ERROR ESE ESE ESR EXPLAIN IDN ISCE ISCE ISCR ISR SRE SRE STATUS STATUS STB SERVICE ATT_LOG CAL_AM CAL_FM CAL_LEVEL CAL_REFOSC CC_BRKFREQ CC_ERRFREQ CC_EXIT CC_FREQ CC_RDAM CC_RDDVM CC_RDFM CC_RDFREQ CC_RDPOWER CC_RESUME CC_SAVE CC_TARGET CMEM_CLRALT CMEM_FIX COMP_ATTPMTR COMP_ATT COMP_COARSE COMP_OUT COMP_OUTDEF COMP_SUBSYN COMP_SUM ETIME TEST_ATT TEST_DISP TST Table 5B 1 Remote Command Summary cont Clears status Retrieves an error code from the error queue Loads Event Status Enable register Retrieves Event Status Enable register Retrieves and clears the Event Status Register Explains a status error code Retrieves instrument identification Loads instrument Status Change Enable register Retrieves Instrument Status Change Enable register Retrieves and clears Instrument Status Change Register Retrieves and clears Instrument Status Register Loads Service Request Enable register Retrieve
150. e sum of the reference and the displayed amplitude when the reference and the displayed quantities have the same units The output amplitude may be displayed by pressing the key in remote the output amplitude can be queried with the AMPL_ABS command and the reference amplitude can be queried with the AMPL_BASE command FRONT PANEL OPERATION RF OUTPUT AMPLITUDE Note that a reference amplitude having dBm dBmV dBzV or dBf units is converted to a dB ratio value so that the displayed value retains the units of the reference the output is the displayed value scaled by the reference value With mixed units voltage and dB the output amplitude is the voltage value scaled by the dB value With voltage units the output is the sum of the reference and the displayed values Table 4B 1 illustrates the allowed combinations of reference and displayed amplitude and shows how the amplitude values are interpreted with the relative amplitude mode enabled Relative mode may not be enabled or disabled while sweep is active See Section 4E Sweep for more information SYNTAX EXAMPLE AMPLITUDE WHEN RELATIVE MODE ENABLED dBm dBmvV dBuv dBf dBxx voltage voltage FRONT PANEL REMOTE Disable Relative Amplitude 33 Co AMPL_REL OFF Enable Relative Amplitude GIO AMPL_REL ON Compensate for external gain or loss A 10 0 dB gain amplifier is connected to the output of the Signal Generator Program the Signal Generator to display
151. ected during single sweep Retrieves the state of external pulse modulation None String ON or OFF Turns external AM AC coupled On or Off ON or OFF or 1 or 0 Rejected during single sweep 5B 21 REMOTE OPERATION REMOTE COMMAND TABLES 5B 22 EXTAC_AM Description Parameter Response EXTAC_FM Description Parameter Restrictions EXTAC_FM Description Parameter Response EXTDC_AM Description Parameter Restrictions EXTDC_AM Description Parameter Response EXTDC_FM Description Parameter Restrictions EXTDC_FM Description Parameter Response EXTREF_FREQ Description Parameter Restrictions Table 5B 3 Remote Commands cont Retrieves the state of external AM AC coupled None String ON or OFF Turns external FM AC M coupled On or Off ON or OFF or 1 or 0 Rejected during single sweep Retrieves the state of external FM AC OM coupled None String ON or OFF Turns external AM DC coupled On or Off ON or OFF Rejected during single sweep Retrieves the state of external AM DC coupled None String ON or OFF Turns external DCFM DCOM On or Off ON or OFF Rejected during single sweep Retrieves the state of external DCFM DCOM None String ON or OFF Selects the external reference frequency STD 10 MHz ALT Refer to Section 4A RF Frequency Rejected during sweep EXTREF_FRE
152. ed value and then enabling the relative mode using a Special Function command from the front panel or with the FREQ_REL command in remote This lights the REL annunciator in the FREQUENCY display field and sets the displayed frequency value to zero The Signal Generator output does not change during this operation In relative frequency mode you can modify parameters as usual by direct entry by editing the bright digit or by increment decrementing by step In relative frequency mode the RF output frequency is the sum of the reference and the displayed frequency You can display the RF output frequency by pressing the key In remote query the output frequency with the FREQ_ABS command and query the reference frequency with the FREQ_BASE command Relative mode may not be enabled or disabled while sweep is active See Section 4E Sweep for more information 4A 2 FRONT PANEL OPERATION RF OUTPUT FREQUENCY SYNTAX FRONT PANEL REMOTE Turn Relative Frequency Off 2 Co FREQ_REL OFF Turn Relative Frequency On C2301 FREQ_REL ON ADJUSTING THE PHASE OF THE RF CARRIER 4A 5 The phase of the RF output carrier can be adjusted relative to another phase coherent signal source using the front panel edit controls For example two 6080As or 6082As can be made phase coherent by driving the REF IN on one unit with the 10 MHz OUT from the other unit The unit receiving the external reference must be set to EXT REF on the rear panel
153. eed as follows 1 Select the step field Select the field for which you would like to change the step by pressing a FUNCTION key followed by the key to enable the step size entry 2 Enter data for step size Select the numeric step size using the DATA keys 3 Select the units Select a UNIT key to give the data its absolute value FRONT PANEL OPERATION 4 4 While the _key is pressed the display field of the selected parameter shows the step size The STEP annunciator is lit in the display field affected by the key The repeat rate of the LA or Z STEP keys may be changed to a faster or slower rate a medium repeat rate is the default with a Special Function Refer to Section 4F for more information about the Special Functions A step increment or decrement is ignored when the result of that step would cause the value of the stepped parameter to exceed its programmable limit Step entry and step up down commands are also provided for remote operation for each of the six functions Refer to Section 5 for more information Section 4A RF Output Frequency INTRODUCTION 4A 1 Section 4A describes the procedures for setting the RF output frequency and the associated parameters of RF output frequency SETTING RF OUTPUT FREQUENCY 4A 2 Set the RF output frequency by pressing Eo the necessary DATA keys and a UNITS key The RF output frequency is displayed in fixed point notation in MHz Pressing key moves the bright
154. eeeeaes 5D 18 5D 22 Instrument Preset Partial Preset 00 0 00 c ccc ecceccuceuce 5D 19 v continued on page vi TABLE OF CONTENTS continued Knob Control Entry Off 0 e cece cence ene tenes Step Increment Set 0 cece cece eee terete e enter e tees Save Recall Register 20 2 ccc cece cece ener e een eee entree Special Functions 000 c cece cece eet eet e tnt n tenes Messages 10 eee ccc eee eee teen e ence net n eee e tener sees SECTION TITLE 5D 23 5D 24 5D 25 5D 26 D 27 Appendix A Instrument Preset State Appendix B Special Function Table Appendix C Rejected Entry Codes Appendix D Overrange Uncal Status Codes Appendix E Self Test Status Codes Appendix F Rear Panel AUX Connector Pinout Appendix G Fluke Sales and Service Centers vi List of Tables TABLE TITLE PAGE l 1 Specifications for Model 6080A 22 0 cece ccc ccc eee e cece ee ectneneeees 1 5 1 2 Specifications for Model 6082A 2 0 0 cece cece ccc cece ccc ce ee eetucnenanes 1 12 2 1 Standard Equipment 2 20 2 cece ccc ccc ence cece ese AE EGA 2 2 2 2 Line Power Cord Types Available from Fluke 00 0000ccc cece eee aw 2 2 2 3 ACCESSONICS AS cesiiksa at OSs ines Bete dee A eaatel ca E tate atte taht Atlee ata ak 2 3 3 1 Front Panel Features ounisrinesnreaeen p ne banat ak La ataies Sh lagi ead es 3 3 3 2 Rear Panel Features otriasa aea a Mages sea bwioamseone de Beeta wee 3 12 4
155. eldiecsyaenstcitex ce ante tia tein ate saints a daly toa 5D 1 5D 2 SELECTING THE ACTIVE LANGUAGE ooon SD 1 5D 3 USING THE 6060 AND 6070 FAMILY LANGUAGES 5D 2 5D 4 Incompatibilities 0 0 0 0 cece cee cece cece cevensueeneas 5D 2 5D 5 Converting 6060 and 6070 Programs to Use the 6080 Language 5D 9 5D 6 USING THE HP 8642 FAMILY LANGUAGE 0005 5D 12 5D 7 TEEE 488 GPIB Address 0 0 0 cece eanan cueneenes 5D 12 5D 8 IEEE 488 GPIB Interface Capabilities 000 0 0 0 ccc ec ee eee 5D 12 5D 9 Data Input and Numeric Formatting 0 00 ccceceeceeeee 5D 13 5D 10 Data Outputs Lidio sneer accent ne ees R ed novels Ga Lnn 5D 13 5D 11 HP8642 Commands 0 c cece cece cece eecncceeaeenenes 5D 13 5D 12 RF Output Frequency 2 22 2 0 ccc cee cece ccc c ec aa aa a 5D 13 5D 13 Relative RF Frequency 000 cece ccc c cece cece eceueaesneaees 5D 16 5D 14 RF Frequency Sweep 0 ccc cece ccc c cece eee eveucesutnenenes 5D 16 5D 15 RF Output Amplitude n nannaa ccc e ence eee e sees 5D 17 5D 16 EMPUN eie remen e a r a a o aa A 5D 17 5D 17 Relative Amplitude 2 0 0 0 00 c ccc cece ces ncceceecectesuvenees 5D 17 5D 18 Amplitude Sweep iesirea na a aa A a a a 5D 17 5D 19 AM Pulse Modulation 00 ccc cc ccceuccevceceueuseucs 5D 17 5D 20 EM OM ora eee a e E E a RaT 5D 17 5D 21 Internal Modulation Oscillator 0 0 0 00 cc cece cece
156. elect sweep dwell time of 20 ms Select sweep dwell time of 50 ms Select sweep dwell time of 100 ms Select sweep dwell time of 200 ms Select sweep dwell time of 500 ms Select sweep dwell time of 1s SPECIAL FUNCTION TABLE Appendix B Special Function Table cont SPECIAL FUNCTION DESCRIPTION Select sweep dwell time of 2s Select sweep dwell time of 5s Select sweep dwell time of 10s Display test Button test Latch test Initiate self tests with RF output enabled Display operating time since manufacture in hours Repair cal comp memory checksum errors Diagnostic preset state Rear output option 830 installed Enable amplitude compensation Disable all amplitude compensation Disable attenuator amplitude compensation Program alternate A24b attenuator Program alternate A24c attenuator Program alternate A24d attenuator Program alternate A24e attenuator Use normal output compensation data Use alternate output compensation data Set all internal DACs to zero Set all internal DACs to half scale Set all internal DACs to full scale Display sum loop frequency Display coarse loop frequency Display subsynthesizer frequency Disable low noise external reference mode Enable low noise external reference mode Transfer output MEC prom data Transfer attenuator MEC prom data Transfer subsynthesizer MEC prom data Automatic coarse loop compensation procedure Automatic sum loo
157. en using secure mode it is recommended that you allow power on self tests to run to completion so that in the event of amemory erasing or other type of error you see an error message on the display Enabling Secure Mode 4D 9 Secure mode is enabled via a front panel Special Function or a remote command Enabling secure mode has no immediate effect on the contents of nonvolatile memory If the display is blanked while secure mode is enabled the word SECUrE is displayed SYNTAX FRONT PANEL REMOTE Disable Secure Mode 2 je SECURITY OFF Enable Secure Mode C2 Cy SECURITY ON Erasing Nonvolatile Memory 4D 10 A Special Function is available to clear parameters from nonvolatile memory that could be used to determine previous instrument settings The area of memory cleared includes the instrument state memory locations The erase operation consists of the following steps 1 Write 10101010 binary to each byte and read each byte back to verify its value 2 Write 01010101 binary to each byte and read each byte back to verify its value 4D 7 FRONT PANEL OPERATION INSTRUMENT STATE MEMORY 3 Write the values 1 through 251 decimal to successive bytes repeating the sequence to the end of the nonvolatile memory address space then read and verify the entire sequence to verify correct operation of the address lines 4 Write 00000000 binary to each byte and read each byte back to verify its value The previous four steps are repeated a
158. ener it enters the remote state These conditions are met for example when a Fluke 1722A executes the BASIC statement REMOTE PRINT 2 FREQ 100 MHZ if the Signal Generator s address is 2 In the remote state the REMOTE annunciator is lit Front panel operation is restricted to use of the power switch and the key Pressing this key returns the Signal Generator to the local state The controller may also send a Go To Local GTL interface message When the Fluke 1722A is used the LOCAL 2 BASIC statement does this if the Signal Generator s address is 2 Remote with Lockout The remote with lockout state can be entered from the remote state or from the local with lockout state but not directly from the local state Remote with lockout is similar to the remote state but it is restricted the key does not return the Signal Generator to the local state Instead the message Loc out is displayed in the FREQUENCY display field when the key is pressed To return the Signal Generator to the local with lockout state the controller sends the Go To Local interface message GTL When the Fluke 1722A is used as an IEEE 488 controller the LOCAL 2 BASIC statement does this if the Signal Generator s address is 2 Table 5A 1 summarizes the possible Remote Local state transitions 5A 6 REMOTE OPERATION REMOTE PROGRAMMING Table 5A 1 Remote Local State Transitions FLUKE 1722A BASIC COMMAND Remote MLA
159. er need not match that of the listener A Fluke 6060A 6060B 6061A or 6062A may also be used as the listener with the limitation that they cannot step modulation frequency or modulation level A Fluke 6070A or 6071A may be used as the listener with the limitation that it will always step frequency The 6080A and 6082A implement the talk only ton function described in the I EEE 488 1 standard The IEEE 488 2 standard does not cover talk only operation The talk only mode is selected by the talker listener special function described in Section 5 Remote Operation When the mode is changed the IEEE 488 interface chip is reset and any current IEEE 488 bus activity is discarded In talk only the signal generator is always in local and is always addressed as a talker The ADDR annunciator is always be lit 5C 1 REMOTE OPERATION TALK ONLY LISTEN ONLY OPERATION In talk only the device clear trigger and serial poll messages are ignored LISTEN ONLY OPERATION 5C 3 A Fluke 6060A 6060B 6061A or 6062A may be used as a talk only instrument witha 6080A or 6082A as the listener They output SU and SD which will cause a command error for the 6080 language Therefore if the 6080A or 6082A is to be the listener it should be configured to one of the compatibility languages as described in Section 5 Remote Operation The Signal Generator implements the listen only lon function described in the EEE 488 1 sta
160. esneueaes 1 2 1 3 6080A 82A Operator Manual 0 0 c ccc cece cece cece eeees 1 2 1 4 6080A 82A Operator Reference Guide 02 cece eee a ees 1 2 1 5 6080A 82A Remote Programming Reference Guide 1 2 1 6 6080A 82A Special Functions Decal 00 00 cc ee cece eueee 1 2 1 7 6080A and 6082A Service Manuals ccc cece eee eee 1 3 1 8 OPTIONS lt esiagties cients gag thereat abides aS Oy yd dinate edly be Sanat een ake 1 3 1 9 WARRANTY AND SERVICE INFORMATION 00005 1 3 1 107 SPECIFICATIONS A aieea a a Seeks E dated at 1 4 2 INSTALLATION 0 35 eiio uaens dea hi ysis atures Ow Arete coeetn cpa A 2 1 2 1 INTRODUCTION oi das cls say eee th aaa wiee desde giacaveebewl ad 2 1 2 2 UNPACKING AND INSPECTION 0 0 00 cc cccecececececevaes 2 1 2 3 RACK OR BENCH MOUNTING 000 ccccccccccceeeeececs 2 1 2 4 POWER REQUIREMENTS cccceccccececcvcreseceecucers 2 1 2 5 LINE VOLTAGE SELECTION AND FUSE REPLACEMENT 2 2 2 6 CONNECTING TO LINE POWER 0 cece cece eeneeeees 2 4 2 7 INTERNAL EXTERNAL FREQUENCY REFERENCE 2 4 2 8 LOCAL AND REMOTE OPERATION 0cccccsccucuceeees 2 5 2 9 POWER ON SEQUENCE oreraa ii va vive vacacnedesevendews 2 5 3 FEATURES ennen o eaaa a wna Athan state eannse 3 1 3 1 INBRODUCTION jhctted enncg et a a e e AEN 3 1 3 2 FRONT PANEL FEATURES 0 0 cece cece cece eee eeseee
161. esponse to the prompt 4 Manually program the talker Signal Generator as follows FUNCTION VALUE KEY SEQUENCE Frequency 210 MHz C27 CJ Co her Step Function Frequency Frequency Step 1 25 kHz CJ ee 5C 2 REMOTE OPERATION TALK ONLY LISTEN ONLY OPERATION 5 Manually program the listener Signal Generator as follows FUNCTION VALUE KEY SEQUENCE Frequency 195 MHz CJ OCJ Ca env Step Function Frequency Frequency Step 1 25 kHz C3 cI ea Cs 6 On the talker Signal Generator press the A STEP or 7 STEP keys Each time the key is pressed the frequency of both Signal Generators increases or decreases by 1 25 kHz the Frequency Step at frequencies 15 MHz apart Different functions on each Signal Generator can be programmed to track in the master slave configuration In other words while the master Signal Generator can be programmed to step increase 25 kHz FM the slave Signal Generator can be programmed to step 25 AM NOTE To use the step feature for other functions change the step function on the Signal Generators to the desired functions 5C 3 5C 4 Section 5D Compatibility Languages INTRODUCTION 5D 1 The previous programming information in Sections 5A through 5C all relates to the default 6080 remote language which complies with the IEEE 488 2 standard Use the default language for all new applications The Signal Generator can also be configured to respond to commands intended for Fluke Mode
162. etrieves the state of the frequency reference selection None String INT or EXT Turns the RF output port On or Off ON or OFF or 1 or 0 Retrieves the state of the RF output port None String ON or OFF Resets instrument to default memory location The default memory location is 97 See Appendix A Instrument Preset State In addition to the recall of location 97 sweep is turned off and any current calibration or compensation procedures are aborted No other actions are performed on the RST command None Saves stores to a memory location This command allows a user to store the current instrument programmed state in a specified memory location for later retrieval by the RCL command Memory location Rejected during sweep Steps the active step field down by one step size None Rejected during single sweep Turns secure mode on or off Note that turning secure mode off turns off an active sweep and erases nonvolatile memory ON or OFF or 1 or 0 Retrieves the state of the secure mode selection None String ON or OFF Description Parameter Restrictions Description Parameter Description Parameter Example SRE ER Description Parameter Response Example STATUS Description Parameter REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Recalls the next or previous memory location UP or DOWN Rejected during sweep
163. ev 10 Hz Resolution 10 to 99 9 kHz Dev 100 Hz Resolution 100 to 999 kHz Dev 1 kHz Resolution 1 to 4 00 MHz Dev 10 kHz Resolution Maximum Deviation FREQUENCY MAXIMUM DEVIATION BAND MHz DC COUPLED EM AC COUPLED FM the smaller of ABSOLUTE RATE LIMITED MAXIMUM MAXIMUM DEV gt 1 64 MAX DEV lt 1 64 MAX 0 01 to 15 500 kHz 500 kHz fmod x 5000 fmod x 78 15 to 32 125 kHz 125 kHz fmod x 1250 fmod x 19 32 to 64 250 kHz 250 kHz fmod x 2500 fmod x 39 64 to 128 500 kHz 500 kHz fmod x 5000 fmod x 78 128 to 256 1 MHz 1 MHz fmod x 10000 fmod x 156 256 to 512 2 MHz 2 MHz fmod x 20000 fmod x 312 512 to 1056 4 MHz 4 MHz fmod x 40000 fmod x 625 FM Distortion Standard Mode lt 2 for 0 5 to 1 0 times maximum deviation lt 1 for lt 0 5 times maximum deviation Applies for rates of 50 Hz to 50 kHz Low Distortion Mode Special Function 731 lt 0 15 for lt 3 5 kHz peak deviation and rates 0 3 to 3 kHz FM Accuracy 5 of setting 10 Hz for rates of 50 Hz to 50 kHz NOTE 2 AM specifications apply where RF output frequency mod frequency gt 150 kHz NOTE 3 FM specifications apply where RF output frequency deviation gt 150 kHz and RF output frequency mod rate gt 150 kHz 1 7 INTRODUCTION AND SPECIFICATIONS Table 1 1 Specifications for Model 6080A cont FM 3 dB Bandwidth COUPLING DEVIATION INTERNAL AG EXTERNAL AC DC 20 Hz to 175 kHz 20 Hz to 10
164. fset relative mode on frequency or amplitude The display bright digit is turned off and any key entry that relies on the position of the bright digit is disallowed This includes function selection numeric entry and units entry All other front panel keys are allowed Single digital sweep mode runs through the sweep range once with a selected dwell time at each discrete frequency or amplitude The display is continuously updated to reflect the output relative mode off or offset relative mode on frequency or amplitude with the bright digit off Only the RF OUTPUT oworr status AUTO and keys are active When any mode of digital sweep is active a 0 to 10V stepped output ramp is available at the rear panel AUX connector This signal is an analog of the progress of the sweep A TTL level pulse is available on this connector for X Y recorder pen lift control or for oscilloscope Z axis blanking When an auto or single sweep reaches the end of its range the signal is driven high for a 100 millisecond minimum pulse See Appendix F for the AUX connector pinout diagram In all sweep modes memory store and recall operations the sto Rew and keys are disallowed If the Signal Generator is powered off while any sweep is active the active sweep is terminated and the power down memory location location 00 is programmed to the center frequency or amplitude 4E 1 FRONT PANEL OPERATION SWEEP 4E 2
165. g information including syntax rules remote commands parameters and responses plus how to determine system status using the status byte and registers 6080A 82A Special Functions Decal 1 6 The 6080A 82A Special Functions Decal is an adhesive backed reference card intended to be affixed to the top surface of the Signal Generator The card contains a summary of the Special Functions that are activated by entering number codes with the numeric keypad INTRODUCTION AND SPECIFICATIONS 6080A and 6082A Service Manuals 1 7 These service manuals are maintenance guides for the Signal Generator The following topics are included in the service manual Theory of operation Closed case calibration Performance testing Access procedures Troubleshooting and alignment Parts lists Schematic diagrams OPTIONS 1 8 Three options are available for the 6080A and the 6082A 6080A 830 Rear Output and Rear Modulation Input 6080A 130 High Stability Reference see Specifications 6080A 132 Medium Stability Reference see Specifications All three options are factory installable only The 830 option moves the MOD OUTPUT RF OUTPUT and MODULATION INPUT connectors to the rear panel The front panel connector holes are covered with plugs The way you operate the Signal Generator with the 130 or 132 option installed is the same as with the standard reference Refer to the specifications for the change in time and temperature stability of eac
166. git digits user data The non zero digit specifies the number of characters that will follow in the lt digits gt field These characters are 0 through 9 ASCII 48 through 57 decimal The value of the number in the lt digits gt field defines the number of user data bytes that follow in the lt user data gt field The maximum response is 64 characters PUD Returns 205FLUKE assuming that this is stored as in the example for PUD above Programs the modulation oscillator pulse width for the variable width pulse waveform in seconds Default units are S Pulse width with optional seconds units PULSE_WIDTH 40 0 US Rejected during sweep Retrieves the modulation oscillator pulse width None 1 Float Pulse width 2 String S 4 000000000E 05 S Recalls a memory location This command allows the user to recover the programmed instrument state from the specified memory location contents of which are loaded by the SAV command Memory location Rejected during sweep 5B 37 REMOTE OPERATION REMOTE COMMAND TABLES REF Description Parameter Response RFOUT Description Parameter RFOUT Description Parameter Response Description Parameter Description Parameter Restrictions Description Parameter Restrictions SECURITY Description Parameter SECURITY Description Parameter Response Table 5B 3 Remote Commands cont R
167. h reference The service manual contains theory of operation and schematic diagrams for each option in the Options section WARRANTY AND SERVICE INFORMATION 1 9 Each Signal Generator is warranted for a period of 1 year upon delivery to the original purchaser The warranty is on the back of the title page of this manual Factory authorized service for the Signal Generator is available at selected Fluke Technical Service Centers For service return the Signal Generator to the nearest Fluke Technical Service Center The local service center will handle transportation to and from the selected service center as required A complete list of Fluke Sales and Technical Service Centers is provided in Appendix G To reship the Signal Generator use its original shipping carton If the original carton is not available use a container that provides adequate protection during shipment Protect the Signal Generator with at least three inches of shock absorbing material on all sides of the container Do not use loose fill to pad the shipping container Loose fill allows the Signal Generator to settle to one corner of the shipping container which could result in damage during shipment After warranty service is available but you may choose to repair the Signal Generator using the information in the Troubleshooting section of the service manual and the Module Exchange Program Refer to the Fluke catalog or contact a Technical Service Center representative f
168. he key is pressed the function continues to sequence down through memory The sequence down function wraps just as the sequence up function does Entering RCL when the last location was location 01 recalls the highest available memory location in remote the SEQ DOWN command accomplishes the same result DIVIDING MEMORY INTO PARTITIONS 4D 4 Memory sequence dividers can be defined that partition the 50 memory locations into multiple subsets for sequence operations Once defined a memory divider sets an upper bound for sequence up operations and a lower bound for sequence down operations From the front panel the dividers are defined with a Special Function command in remote they are defined with the MEM_DIVIDER command If no dividers have been defined the sequence up operation sequences through every location and wraps around at location 50 back to location 01 The sequence down operation sequences down through every location and wraps around at location 01 If for example a divider is defined at location 10 the memory locations are partitioned into two subsets 1 9 and 10 50 Note that the memory location corresponding to the divider location is included in the upper subset and is excluded from the lower subset Up to four memory dividers can be defined at once Locations 01 and 50 are always used as the absolute boundaries regardless of the divider settings Therefore four dividers can provide up to five memory loc
169. he active manual amplitude sweep by specified number of counts Note that the sign of sweep width affects the outcome of this operation Number of counts to increment or decrement the active manual amplitude sweep Only allowed during manual amplitude sweep Selects amplitude range mode NORMAL or FIXED Rejected during sweep Retrieves the state of amplitude range mode None String NORMAL or FIXED Selects relative amplitude mode Refer to Section 4B RF Amplitude for more details ON or OFF or 1 or 0 Rejected during sweep Retrieves the state of relative amplitude mode None String ON or OFF Programs the amplitude sweep increment in dB or V The default units are DB Increment with optional DB units or voltage units Rejected during manual or single sweep 5B 11 REMOTE OPERATION REMOTE COMMAND TABLES 5B 12 AMPL_SINCR Description Parameter Responses AMPL_STEP Description Parameter Restrictions AMPL_STEP Description Parameter Responses AMPL_SWIDTH Description Parameter Example Restrictions AMPL_SWIDTH Description Parameter Responses AMPL_UNITS Description Parameter Restrictions Table 5B 3 Remote Commands cont Retrieves the amplitude sweep increment None 1 Float Amplitude sweep increment 2 String DB V or V EMF Programs the amplitude step size in dB or V The default units are DB Amplitude
170. he center Frequency Refer to Section 4E Sweep for more information None 1 Float Displayed RF frequency 2 String HZ 1 832772810E 08 HZ Retrieves the RF output frequency None 1 Float Output RF frequency 2 String HZ FREQ_BASE Description Parameter Responses FREQ_BLANK Description Parameter Restrictions FREQ_BLANK Description Parameter Restrictions FREQ_BRT Description Parameter Example Restrictions FREQ_BRT Description Parameter Responses FREQ_MANUAL Description Parameter Restrictions REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Retrieves the base frequency If FREQ_REL is OFF this value is 0 Refer to Section 4A RF Frequency for more details None 1 Float Base RF frequency 2 String HZ Selects RF output blanking mode Refer to Section 4A RF Frequency for more details ON or OFF or 1 or 0 Rejected during sweep Retrieves the state of RF output blanking mode ON or OFF or 1 or 0 Rejected during sweep Moves the bright digit to specified decade in frequency field The defautt units are HZ Bright digit decade in FREQUENCY display field with optional frequency units FREQ_BRT 10 0 KHZ Rejected during manual or single sweep Retrieves the decade of frequency bright digit position None 1 Float Bright digit decade in FREQUENCY display 2 String HZ Increments or
171. he sweep width The maximum FM deviation allowed depends on the RF output frequency See Section 4C Modulation for more information The following equations determine the start and end frequencies FI start frequency RF output frequency FM deviation F2 end frequency RF output frequency FM deviation The triangle internal modulation waveform must be selected See Section 4C Modulation for more information Once internal FM is enabled the RF output frequency sweeps from FI to F2 then back down to F1 each period period 1 Modulation Frequency 4E 10 FRONT PANEL OPERATION SWEEP EXAMPLE Configure an analog frequency sweep from 199 5 MHz to 200 5 MHz with a sweep rate of 100 Hz 1 Select 200 MHz RF frequency FRONT PANEL 2 ej REMOTE FREQ 200 MHz 2 Select 100 Hz modulation frequency FRONT PANEL C ee Ce REMOTE MODF 100 Hz 3 Select 1 MHz FM deviation FRONT PANEL 4 wiv REMOTE FM 1 MHz 4 Select triangle internal modulation waveform FRONT PANEL Cs J REMOTE MOD_WAVE TRIANGLE 5 Enable internal FM modulation FRONT PANEL rsu REMOTE INT_FMON 4E 11 4E 12 Section 4F Special Functions INTRODUCTION 4F 1 Special Functions are divided into three functional groups Stored mode Immediate action Hidden parameter display entry All are activated by pressing the key followed by either a two or three digit numeric code Stored mode Special Functions change a spe
172. hen 1 the external FM signal is less than 98V RPP When 1 the RPP circuitry has tripped LIMIT When 1 the Signal Generator is operating in a hardware limited region FAULT When 1 the Signal Generator has a hardware fault condition RFOUT When 1 the RF output is on Figure 5A 4 Bit Assignments for the ISR ISCR and ISCE 5A 14 REMOTE OPERATION REMOTE PROGRAMMING INSTRUMENT STATUS CHANGE ENABLE REGISTER 5A 30 The Instrument Status Change Enable Register ISCE is a mask register for the ISCR If a bit in the ISCE is enabled set to 1 and the corresponding bit in the ISCR changes in the proper direction the ISCB bit in the Serial Poll Status Byte is set to 1 ISCR bits marked T set the change bit when the ISCR bit goes from a0 toa 1 ISCR bits marked J set the change bit when the ISCR bit goes from a 1 toa 0 and ISCR bits marked T set the change bit when the ISCR bit changes If all bits in the ISCE are disabled set to 0 the ISCB bit in the Serial Poll Status Byte never goes to 1 The ISCE is stored in non volatile memory and is restored to its power off value when the power is turned on PROGRAMMING THE ISR ISCR AND ISCE 5A 31 To read the contents of the ISR send the remote command ISR To read the contents of the ISCR send the remote command ISCR To read the contents of the ISCE send the remote command ISCE The Signal Generator responds by sending a decimal number that represents bits 0 through 15 Eve
173. hen reads it with a statement such as the Fluke 1722A BASIC INPUT statement The Message Available M AV bit in the Serial Poll Status Byte indicates whether or not the output queue is empty If the queue is empty the Signal Generator will not respond to the input statement from the controller The output queue is 64 characters long Error Queue 5A 26 When a command error execution error query error or device dependent error occurs its error code is placed in the error queue where it can be read by the ERROR command All error codes are defined in Appendix C of this manual ERROR EXPLAIN will return the error code and a description of the error code Reading the first error with the ERROR command removes that error from the queue A response of 0 means the error queue is empty The Error Available EAV bit in the Serial Poll Status Byte indicates whether or not the error queue is empty The error queue is cleared when the Signal Generator is turned on and by the CLS command The error queue contains up to 16 entries If many errors occur only the first 15 errors are kept in the queue A 16th entry in the queue is always an error queue overflow error and all later errors are discarded until the queue is at least partially read Since many errors may occur before they are acknowledged and read the earliest errors are the most likely to point to the problem Subsequent errors are usually repetitions or consequences of
174. hows d1 1 Enter 4 _lto complete the entry The display then shows divider 2 d2 00 Only three dividers are in use so enter L The display then shows divider 3 d3 07 Leave this divider set to 07 by entering CJ again The display then shows divider 4 d4 22 Enter 3_ The display shows d4 3_ Enter L1 The display shows d4 31 When the C key is released the new divider settings are sorted and the display shows for five seconds 00 07 14 31 Note that location 07 has moved from divider 3 to divider 2 Since the dividers are kept sorted the actual divider number is not particularly important However the divider numbers do provide a way to uniquely identify each divider REMOTE MEM_DIVIDER 00 07 14 31 FRONT PANEL OPERATION INSTRUMENT STATE MEMORY From the front panel divider entries that are out of range are immediately rejected To enter a valid divider following an erroneous entry the entry process must be started over from the beginning Duplicate divider entries are not checked as they are entered but are eliminated during the sorting process WRITE PROTECTING MEMORY LOCATIONS 4D 5 Memory locations 01 through 50 and 96 can be write protected with a Special Function command from the front panel or with the MEM_LOCK command in remote When enabled all memory recall and sequence operations operate as usual but memory store operations are rejected SYNTAX FRONT PANEL REMOTE Disab
175. iate for the country of purchase or as specified at the time of your purchase order The Signal Generator also comes with the appropriate line power plug for the country of purchase If you need a different type refer to Table 2 3 and Figure 2 1 They list and illustrate the line power plug types available from Fluke Refer to Figure 2 2 to set the line voltage of the Signal Generator to match the available source Insert the small pc board in the fuse module so that the appropriate voltage label is towards you Figure 2 2 also shows how to replace the line fuse A plate attached to the rear panel shows the correct fuse value for each of the two line voltages INSTALLATION Table 2 3 Accessories DESCRIPTION Rack Mount Kit includes 5 1 4 inch rack mount ears 22 inch rack slides Rack Ear Set Rack Filler Panel for improved cooling airflow 19 4 inches IEEE 488 Shielded Cable 1 meter IEEE 488 Shielded Cable 2 meters IEEE 488 Shielded Cable 4 meters Coaxial Cable 50 ohms 3 feet BNC m both ends Coaxial Cable 50 ohms 6 feet BNC m both ends ACCESSORY NO Y6080 01 Y6080 02 Y6080 03 Y8021 Y8022 Y8023 Y9111 Y9112 Figure 2 1 Line Power Cords Available from Fluke 2 3 INSTALLATION DESIRED LINE VOLTAGE SHOWING HERE Figure 2 2 Fuse Line Voltage Selection Assembly CONNECTING TO LINE POWER 2 6 WARNING TO AVOID SHOCK HAZARD CONNECT THE FACTORY SUPPLIED THREE
176. ibration The Special Function Help commands are not emulated HP Help HO Help Off Appendix A Instrument Preset State A 1 INSTRUMENT PRESET STATE Appendix A Instrument Preset State SET TO STATES SPCL 00 RCL 971 SPCL 01 PRESET FREQUENCY Output frequency 1000 MHz 1000 MHz Relative frequency mode SPCL 20 Off Off AMPLITUDE Output amplitude 140 dBm 140 dBm RF output state On Relative amplitude mode SPCL 30 Off Off Fixed range amplitude SPCL 50 Normal Normal Amplitude display units SPCL 840 dBm dBm EMF Volts amplitude display mode SPCL 850 MODULATION AM depth FM M deviation Modulation frequency Modulation level Pulse width Internal AM External AC AM External DC AM Internal FM OM External AC FM OM External DC FM OM External pulse modulation Modulation Oscillator output SPCL 40 Low rate FM SPCL 710 High rate M SPCL 720 Low distortion fixed range FM SPCL 730 Normal Normal Internal pulse modulation SPCL 740 Off Off Modulation oscillator waveform SPCL 750 Sine Sine SWEEP Frequency sweep width 100 MHz 100 MHz Frequency sweep increment 1 MHz 1 MHz Amplitude sweep width 10 dB 10 dB Amplitude sweep increment 1dB 1dB Active sweep field Freq Freq Sweep dwell time SPCL 890 Os Os Sweep symmetry SPCL 880 Sym Sym Sweep mode Off EDIT Frequency bright digit 10 MHz Amplitude bright digit 10 dBm AM bright digit 10 FM bright digit 1 kHz A 2 no eeeme
177. ified AM Depth at the modulation frequency rate This rate may be viewed by pressing Pressing the N _ key again disables internal AM as does the INT_AM OFF command in remote Activating External AM AC Coupled 4C 11 External ac coupled AM ACAM is enabled by pressing the key from the front panel or with the EXTAC_AM ON command in remote The EXT AM annunciator is lit when External AM is enabled When external AM is enabled the modulating signal is applied through the front panel external AM input connector Pressing the key again disables External AM as does the EXTAC_AM OFF command in remote FRONT PANEL OPERATION MODULATION External AM uses a 1V pk input signal Two annunciators on the front panel give indications of when the external ACAM modulation signal is outside the range of 1V 2 These annunciators are lit only when external ACAM is enabled and are not active when external DCAM is enabled If the signal is greater than 1 02V the AM HI annunciator is lit If the signal is less than 0 98V the AM LO annunciator is lit Activating External AM DC Coupled 4C 12 External de coupled AM DCAM is enabled by pressing the 4 P key from the front panel or using with the EXTDC_AM ON command in remote The EXT DC AM annunciator is lit when External AM is enabled When external AM is enabled the modulating signal is applied through the front panel external AM input connector External AM is normalized for a 1V pk input sig
178. im should be filed with the carrier immediately To obtain a quotation to repair shipment damage contact the nearest Fluke Technical Center Final claim and negotiations with the carrier must be completed by the customer The JOHN FLUKE MFG CO INC willbe happy to answer all applications or use questions which will enhance your use of this instrument Please address your requests or correspondence to JOHN FLUKE MFG CO INC P O BOX C9090 EVERETT WASHINGTON 98206 ATTN Sales Dept For European Customers Fluke Holland B V P O Box 2269 5600 CG Eindhoven The Netherlands For European customers Air Freight prepaid John Fluke Mfg Co Inc P O Box C9090 Everett Washington 98206 Rev 7 88 Declaration of the Manufacturer or Importer We hereby certify that Fluke Models 6080A and 6082A are in compliance with Postal Regulation Vfg 1046 and are RFI suppressed The marketing and sale of the equipment was reported to the German Postal Service The right to retest this equipment to verify compliance with the regulation was given to the German Postal Service Bescheinigung des Herstellers Importeurs Hiermit wird bescheinigt da Fluke Models 6080A und 6082A in Ubereinstimmung mit den Bestimmungen der Amtsblattverfiigung Vfg 1046 funk entsort sind Der Deutschen Bundespost wurde das Inverkehrbringen dieser Ger te angezeigt und die Berechtigung zur Uberprifung der Serie auf Einhaltung der Bestimmungen einger umt John
179. imum FM M deviation allowed when FM or M is enabled depends on the rf output frequency Deviations up to 4 MHz 400 radians 6080A or 8 MHz 800 radians 6082A may be entered regardless of the output frequency however the STATUS annunciator is flashed if FM M modulation is enabled and the limits specified in Table 4C 1 are exceeded Table 4C 1 FM OM Deviation Limits FM OM Enabled FREQUENCY BAND MHz MAXIMUM FM DEVIATION MAXIMUM M DEVIATION 01 to 15 6080A 500 kHz 50 0 radians 1 to 15 6082A 500 kHz 50 0 radians 15 to 32 125 kHz 12 5 radians 32 to 64 250 kHz 25 0 radians 64 to 128 500 kHz 50 0 radians 128 to 256 1 0 MHz 100 radians 256 to 512 2 0 MHz 200 radians 512 to 1056 4 0 MHz 400 radians 1056 to 2112 6082A 8 0 MHz 800 radians Converting FM M Units 4C 15 When converting from FM deviation to M deviation and vice versa the output of the Signal Generator does not change However the programmed modulation frequency must be taken into account specifically FM deviation Hz M deviation rad Modulation Frequency Hz M deviation rad FM deviation Hz Modulation Frequency Hz The Mod Frequency used in these equations is always that of the internal modulation oscillator Note that certain combinations of modulation frequency and the FM deviation or M deviation may not be converted into the alternate units if the resulting deviation is outside the range a
180. ing with a Special Function command See paragraph 4D 6 Resetting Memory Locations for more information The Instrument Preset State is presented in Appendix A 6060 6070 Compatibility Language Default Memory Location The current instrument state FRONT PANEL OPERATION INSTRUMENT STATE MEMORY STORING AND RECALLING INSTRUMENT STATES 4D 2 Storage and recall of Signal Generator instrument states in nonvolatile memory locations is accomplished with the and keys Note that memory store and recall operations perform no action while digital sweep is active SYNTAX Storing a Signal Generator Instrument State 1 The current instrument state is stored by pressing the key The last memory location stored or recalled is displayed in the FREQUENCY display field 2 The DATA keys are used to enter the two digit memory location code The entered code must contain both digits e g 01 02 50 The location code appears in the FREQUENCY display field as it is entered When the second digit key of the location code is released the store operation is performed From Remote the SAV command is used to store an instrument state Recalling a Signal Generator Instrument State 1 An instrument state is recalled by pressing the key The last memory location stored or recalled is displayed in the FREQUENCY display field 2 Use the DATA keys to enter the memory location code of the desired instrument state Again the entered
181. input is 10V PULSE MODULATION For RF Output Frequencies lt 10 MHz Rise and Fail Times lt 2 times the period of the RF output frequency Level Error For pulse widths gt 10 times the period of the RF output frequency the power in the pulse is within 0 7 dB of the measured CW level Other pulse specifications are the same as for the gt 10 MHz frequency range NONVOLATILE INSTRUMENT STATE MEMORY 50 instrument states are retained for typically 2 years even with ac line power disconnected REVERSE POWER PROTECTION Protection Level Up to 50 watts from a 502 source up to 50V de RF OUTPUT is ac coupled Protection is provided when the signal generator is turned off NOTE 5 Valid for rates from 50 Hz to 50 kHz in high bandwidth mode Does not include effects of residual phase noise 1 9 INTRODUCTION AND SPECIFICATIONS Table 1 1 Specifications for Model 6080A cont Trip Reset A flashing RF OFF annunciator indicates a tripped condition Pressing RF ON OFF button resets the signal generator IEEE 488 REMOTE CONTROL Extent of Remote Control All controls except the POWER REF INT EXT and CAL COMP switches are remotely programmable via the IEEE 488 Interface Std 488 2 1 987 All status including the option com plement are available remotely Interface Functions Supported SH1 AH1 T5 TEO L3 LEO SR1 RL1 PPO DC1 DT1 CO and E2 INTERNAL M
182. ion Response Restrictions MEM_DIVIDER Description Parameter Example Restrictions MEM_DIVIDER Description Parameter Responses Example MEM_ERASE Description Parameter MEM_LOCK Description Parameter Restrictions MEM_LOCK Description Parameter Response REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Retrieves the state of low noise external reference mode ON or OFF Rejected during sweep Programs memory divider locations for sequence operations 1 Memory divider 1 location number 2 Memory divider 2 location number 3 Memory divider 3 location number 4 Memory divider 4 location number MEM_DIVIDER 5 23 45 30 Rejected during sweep Retrieves memory divider locations for sequence operations None 1 Integer Memory divider 1 location number 2 Integer Memory divider 2 location number 3 Integer Memory divider 3 location number 4 Integer Memory divider 4 location number 5 23 30 45 Erases and reinitializes portions of nonvolatile memory including instrument state memory locations Note that this command turns off an active sweep None Sets lock protection for memory store ON or OFF or 1 or 0 Rejected during sweep Retrieves the state of memory lock protection None String ON or OFF 5B 31 REMOTE OPERATION REMOTE COMMAND TABLES 5B 32 MEM_RESET Description Parameter Restrict
183. ion or compensation procedure or during sweep COMP_COARSE Description Parameter Restrictions COMP_OUT Description Parameter Restrictions COMP_OUTDEF Description Parameter Restrictions COMP_SUBSYN Description Parameter Restrictions COMP_SUM Description Parameter Restrictions REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Initiates automatic coarse loop compensation procedure Note that the rear panel CAL COMP switch must be set to 1 on None Rejected during a calibration or compensation procedure or during sweep Initiates output compensation procedure Note that the rear panel CAL COMP switch must be set to 1 on None Rejected during a calibration or compensation procedure or during sweep Initiates output compensation procedure with default attenuator through path corrections applied Note that the rear panel CAL COMP switch must be set to 1 on None Rejected during a calibration or compensation procedure or during sweep Initiates subsynthesizer compensation procedure Note that the rear panel CAL COMP switch must be set to ON None Rejected during a calibration or compensation procedure or during sweep Initiates automatic sum loop compensation procedure Note that the rear panel CAL COMP switch must be set to 1 on None Rejected during a calibration or compensation procedure or during sweep REMOTE O
184. ions MOD_DISPLAY Description Parameter Restrictions MOD_DISPLAY Description Parameter Response MOD_WAVE Description Parameter Restrictions MOD_WAVE Description Parameter Response MODF Description Parameter Example Restrictions MODF Description Parameter Responses Example Table 5B 3 Remote Commands cont Resets all memory locations to the default instrument state memory location 97 None Rejected during sweep Selects the quantity to be shown in the modulation field of the display This command does not move the bright digit AM or FM or MODF or MODL Rejected during manual or single sweep Retrieves the quantity shown in the modulation field Note that a value will be returned even though the display may be turned off with the DISPLAY command None String AM or FM or MODF or MODL Selects the output waveform for the modulation oscillator SINE or TRIANGLE or SQUARE or PULSE Rejected during sweep Retrieves the modulation oscillator waveform None String SINE or TRIANGLE or SQUARE or PULSE Programs the modulation frequency in Hz The modulation frequency may be programmed with 0 1 Hz resolution The default units are HZ Modulation frequency with optional frequency units MODF 100 0001 KHZ Rejected during manual or single sweep Retrieves the modulation frequency None 1 Float Modulation frequency 2 Stri
185. is returned If the optional keyword EXPLAIN is speci fied a character string containing its explanation is returned with the status code optional EXPLAIN STATUS Returns 220 STATUS EXPLAIN Returns 220 RPP tripped If the RPP has tripped If the RPP has tripped 1 Integer Currently loaded uncal self test or memory status code or a zero 2 optional String The explanation of the code Retrieves the status byte The status byte is described in under the heading Checking the Instrument Status None Integer Decimal equivalent of the status byte STB Returns 72 if bits 3 EAV and 6 MSS are set 1 and the rest of the bits are reset 0 Steps the AM depth up or down by one step size UP or DOWN Rejected during single sweep Steps the output amplitude up or down by one step size UP or DOWN Rejected during single sweep Programs the specified field to be used for the step up down functions AM or AMPL or FM or FREQ or MODF or MODL Rejected during manual or single sweep Retrieves the current step field None String AM or AMPL or FM or FREQ or MODF or MODL STEP_FM Description Parameter Restrictions STEP_FREQ Description Parameter Restrictions STEP_MODF Description Parameter Restrictions STEP_MODL Description Parameter Restrictions SU Description Parameter Restrictions SWEEP Description Parameter
186. itch is set to 1 ON Indicates that a coarse loop sum loop or subsynthesizer compensation procedure is in progress Indicates that an output compensation procedure is in progress Indicates that an attenuator compensation procedure is in progress Indicates that a calibration procedure is in progress Flashes when the rear panel CAL COMP switch is set to 1 ON Indicates that a sweep is active Indicates that manual sweep mode is active Indicates that single sweep mode is active Indicates that auto sweep mode is active FEATURES 3 5 FEATURES Table 3 1 Front Panel Features cont Indicates that the Signal Generator is configured to sweep in asymmetric mode EXT REF Indicates that the rear panel REF switch is in the EXT external position OVEN COLD Indicates ovened timebase oscillator has not stabilized REJ ENTRY Flashes when an invalid entry is made STATUS Indicates when the Signal Generator is operating outside its specified range Flashes when a hardware limited or a hardware fault condition is detected Indicates that the RF OUTPUT is disabled Flashes when the RPP has been tripped REMOTE Indicates that the Signal Generator is in the remote IEEE 488 Interface mode of operation ADDR Indicates that the Signal Generator is addressed to listen or talk on the IEEE 488 interface Bus SRQ Indicates that the Signal Generator has asserted the IEEE 488 SRQ signal
187. ither the auto or manuat key twice terminates a single sweep From Remote the SWEEP OFF command turns off any active sweep If manua is pressed while a single or auto sweep is active the manual sweep mode is entered precisely at the point in the sweep range where the Signal Generator was at the time the key was pressed This allows the neighborhood of a particular frequency or amplitude in the sweep range to be examined in greater detail If auto or spect 8 8 2 is pressed again the sweep resumes from the last point where it was left in the manual sweep SYNTAX FRONT PANEL REMOTE Initiate Auto Sweep SWEEP AUTO Initiate Manual Sweep SWEEP MANUAL Initiate Single Sweep 2 SWEEP SINGLE Terminate Sweep if AUTO on SWEEP OFF if MANUAL on FRONT PANEL OPERATION SWEEP NOTE Enabling frequency sweep on the 6082A while AM is enabled may cause the amplitude band switch points to change See RF Output Amplitude Bands in Section 4B for details SELECTING SYMMETRIC OR ASYMMETRIC SWEEP 4E 4 Both symmetric sweep range is evenly centered about displayed frequency or amplitude and asymmetric sweep displayed frequency or amplitude is an endpoint of the sweep range are selectable with a Special Function command from the front panel in remote the SWEEP_SYM command is used When asymmetric sweep is selected the ASYM annunciator is lit If a selection is made that would cause an invalid sweep range while
188. ities HP8642 Language FLUKE 6080A OR 6082A T5 has talk only mode CO no controller capability T6 no talk only mode Ci C2 controller C3 C28 capability 5D 12 REMOTE OPERATION COMPATIBILITY LANGUAGES Data Input and Numeric Formatting 5D 9 The HP8642 and the 6080A 82A in emulation mode handle input data the same way When processing input only the characters a z A Z 0 9 and are interpreted Other characters including space line feed and carriage return are ignored Numeric data are limited to 10 digits of mantissa and 2 digits of exponent The HP8642 ignores data input over the bus while in local REN unasserted The Fluke 6080A 82A parses and executes input commands when in local Data Output 5D 10 When addressed to talk the HP8642 always has data available to be read When in local and unless a query command OE OA etc has been received the display contents are presented This feature is emulated by the 6080 The HP8642 OC OE and OL queries are emulated Their format consists of 2 fields a numeric value followed by an ASCII string HP8642 syntax errors are reported as they are encountered and programming errors recognized by the 6080A 82A are mapped to HP8642 message numbers as shown in Table 5D 6 Since the 6080A 82A does not automatically change parameters based on a user action to change another parameter the OC Output Changed
189. itude Sweep Increment ccc cece e eens 4E 13 Digital Amplitude Sweep Example 0 cccceeeeeeenee 4E 14 CALIBRATING A RECORDER OR OSCILLOSCOPE 4E 15 ANALOG FREQUENCY SWEEP 0c cee ce cece ee eees SPECIAL FUNCTIONS icc cece cece eee e teen t nee enenens F INTRODUCTION darrian tar iad as edie AENEAS 4F 2 ENABLING SPECIAL FUNCTIONS 0 0 cece cee ees 4F 3 VIEWING ENABLED SPECIAL FUNCTIONS 04 4F 4 THE SPCL ANNUNCIATOR ccc cece cece ccc ee ene ees 4F 5 MISCELLANEOUS SPECIAL FUNCTIONS 0006 4F 6 Disable Special Functions 0 cece cee cee cece e cence nena 4F 7 Restore Instrument Preset State cece cece eee eee nee ee 4F 8 Execute Self Test and Display Self Test Results 4F 9 Display Loaded Options 0 cece cece eee cence ence ens TABLE OF CONTENTS continued iii PAGE 4C 13 4C 14 4C 14 4C 14 4C 14 4C 15 4F 1 4F 3 4F 3 4F 4 4F 4 4F 4 4F 4 4F 4 4F 4 continued on page iv TABLE OF CONTENTS continued SECTION TITLE PAGE 4F 10 Display Instrument ID and Software Revision Level 4F 4 4F 11 Blank Front Panel Display 0 cee ee eee cence cence een nens 4F 5 4F 12 Select Repeat Rate for Step Keys 0 0 0 0 cece cece nent e eee eens 4F 5 4F 13 Configure Edit Knob and Step Keys ccc cece cece eens 4F 5 4G ERROR AND STATUS REPORTING
190. justment Internal cal comp data transfer error All other rejected entry codes new for 6082A 5D 3 REMOTE OPERATION COMPATIBILITY LANGUAGES 5D 4 Table 5D 1 6060 Compatibility Language Codes and Special Functions cont RETURNED IN DESCRIPTION 6060 MODE EQUIVALENT 6080 STATUS All tests passed Some tests failed Go to the 6080 language to query the results Self test value returned on 6060 IT command Tests were aborted 000 000 000 000 777 777 777 777 000 000 000 000 777 777 777 777 Some tests failed and tests were aborted SENT IN 6060 MODE EQUIVALENT DESCRIPTION 6080 CODE Special function value sent with 6060 SP command Clears special functions Initiates power on self tests Display test Button test Set front panel SRQ Clear front panel SRQ Display software revision level Display IEEE 488 address and talker istener mode Display self test results Disable display Initialize memory locations Latch test Display option loading status Initiate self tests with RF output enabled Relative frequency 20 21 30 31 740 741 840 842 ktit 860 862 Relative amplitude Internal pulse modulation Select amplitude display units DCAM Select repeat rate for step keys Display cal comp memory checksum statu
191. le Memory Lock CJ C amp J MEM_LOCK OFF Enable Memory Lock CJ GOJ MEM_LOCK ON RESETTING ALL MEMORY LOCATIONS TO FACTORY DEFAULT 4D 6 The contents of the 50 nonvolatile memory locations and memory locations 96 and 99 can be reset to the default memory location 97 with a Special Function command from the front panel as described below Memory location 97 is described in Appendix A Instrument Preset State 1 Entering sect 8 o J 1_ from the front panel causes the message Sto to appear in the FREQUENCY display field The remote command MEM_RESET automatically resets all memory locations without displaying the Sto prompt 2 Ifthe key is pressed within 5 seconds the memory contents are reset to the memory location default 97 3 Ifthe key is not pressed within 5 seconds or if any other key is pressed memory locations are not changed STORING AND RECALLING SINGLE PARAMETERS 4D 7 A single function parameter may be stored or recalled individually without affecting the entire instrument state This allows individual storage and recall of commonly used RF output frequency RF amplitude AM depth FM deviation modulation frequency and modulation level parameter values The stored parameters are saved in memory location 96 This location is initialized to the instrument default state if no parameters have been stored Pressing the key followed by a FUNCTION key stores the current value of the functio
192. le parameters 4D 2 Nonvolatile memory locations 4D 2 Secure mode 4D 7 Write protecting 4D 6 Instrument Status Register ISR 5A 14 Bit assignments for the ISR ISCR and ISCE 5A 14 Instrument Status Change Enable Register ISCE 5A 15 Instrument Status Change Register ISCR 5A 14 INT AM key 3 6 INT FM M key 3 6 INT_AM remote command 5B 28 INT_AM remote command 5B 28 Interface messages 5A 16 Internal modulation oscillator 4C 1 also see modulation Internal external frequency reference 2 4 INT_FM remote command 5B 28 INT_FM remote command 5B 28 INT_PULSE remote command 5B 28 INT_PULSE remote command 5B 28 ISR see Instrument Status Register ISCE remote command 5B 27 ISCE remote command 5B 27 ISCR remote command 5B 27 ISR remote command 5B 28 ISCE see Instrument Status Register ISCR see Instrument Status Register KEY_RATE remote command 5B 29 KEY_RATE remote command 5B 29 kHz mV key 3 8 KNOB_STEP remote command 5B 30 KNOB_STEP remote command 5B 30 Left arrow key 3 9 INDEX 3 INDEX INDEX 4 Line power Connecting to 2 4 Power cords available 2 2 Voltage selection 2 4 Listen only operation 5C 2 Listen only talk only example 5C 2 Local vs remote operation 2 5 LOCALERT remote command 5B 30 LOCALERT remote command 5B 30 LORATEFM remote command 5B 30 LORATEFM remote command 5B 90 Low distortion and fixed range FM modes 4C 12 Low rate FM mode 4C 13 LOWNOISE remote comm
193. lect triangle oscillator waveform Select square oscillator waveform Socom tt tit tt cTCR SAARC te TT CLAT Si SSS Stt re reat arr npr entire erieene ener pp ope SPECIAL FUNCTION TABLE Appendix B Special Function Table cont DESCRIPTION Select pulse waveform Enter pulse width Use 10 MHz external reference input frequency Use alternate external reference input frequency SPECIAL FUNCTION Enable display Disable display Disable RF output blanking Enable RF output blanking Reset memory locations Display Set memory sequence dividers Continuous memory sequence 860 862 select rate Unlock memory store operations Lock memory store operations Disable secure mode Enable secure mode Nonvolatile memory erase repeat count Erase nonvolatile memory Select dBm amplitude display units Select dBmV amplitude display units Select dBuV amplitude display units Select dBf amplitude display units Disable EMF Volts amplitude display mode Enable EMF Volts amplitude display mode Select medium key repeat rate Select fast key repeat rate Select slow key repeat rate Normal knob and step key operation Knob disabled normal step key operation Normal knob step keys operate as EDIT up down Knob disabled step keys operate as EDIT up down Select symmetrical sweep symmetry Select asymmetrical sweep symmetry Initiate single sweep Select sweep dwell time of 0 ms S
194. llowed for those units Since the frequency of an external modulation source cannot be determined FM oM units conversion is rejected if external FM or M is enabled SYNTAX TOCONVERT FRONT PANEL REMOTE FM to 6M FM_UNITS RAD oM to FM Fuen wnay FM_UNITS HZ Halay MODULATION 4C 9 FRONT PANEL OPERATION MODULATION 4C 10 Activating Internal FM M 4C 16 Internal FM M is enabled by pressing the key from the front panel or with the INT_FM ON command in remote The unit specified for the FM deviation determines if the INT FM or INT M annunciator is lit when Internal FM M is enabled With Internal FM M enabled the internal modulation oscillator modulates the RF output to the specified FM deviation or M phase angle at the modulation frequency rate This rate may be viewed by pressing Pressing the ANa key again disables Internal FM M as does the INT_FM OFF command in remote Activating External FM M AC Coupled 4C 17 External AC coupled FM M ACFM is enabled by pressingthe Saf key from the front panel or with the EXTAC_FM ON command in remote The EXT FM annunciator is lit when External FM is enabled and the EXT M annunciator is lit when External M is enabled When either is enabled the modulating signal is applied through the front panel external FM M input connector Pressing the EMAC key again disables External FM M as does the EXTAC_FM OFF command in remote External FM M uses a 1V pk i
195. llowing commands do not work unless the rear panel CAL COMP switch is in the 1 on position PUD CMEM_FIX and all commands that start with CAL_ CC_ and COMP_ Attempting to use any of these commands with the CAL COMP switch in the 0 off position causes the Signal Generator to log an error into the error queue REMOTE LOCAL STATE TRANSITIONS 5A 14 The Signal Generator can be operated using the front panel keys as described in Section 4 Front Panel Operation or remotely using a remote controller In addition the Signal Generator can be placed in a local lockout condition at any time by command of the controller When combined the local remote and lockout conditions yield four possible operating states Local The Signal Generator responds to local front panel and remote commands This is also called front panel operation Some remote commands are not allowed in the local state These are mostly procedural commands such as the calibration and compensation commands Local with Lockout Local with lockout is identical to local except the Signal Generator will go into the remote with lockout state instead of the remote state when it receives a remote command The local with lockout state is entered by executing the Fluke 1722A BASIC LOCKOUT statement when using the 1722A as an IEEE 488 controller Remote When the Remote Enable REN line is asserted and a controller addresses the Signal Generator as a list
196. ls 6060A 6060B 6061A 6062A 6070A or 6071A or Hewlett Packard Models 8642A or 8642B in an existing program In this mode the Signal Generator no longer complies with the IEEE 488 2 standard The information in this sub section describes the three compatibility languages built into Models 6080A and 6082A Fluke 6060 family language Fluke 6070 family language HP8462 family language The language setting is stored in non volatile memory and is retained when the power is turned off SELECTING THE ACTIVE LANGUAGE 5D 2 Enter sPeL 1 2 to display the current IEEE 488 language in the FREQUENCY display field The displayed language appears as follows L6080 6080 default language L6060 6060 family language L6070 6070 family language L8642 HP8642 family language Enter 9 for the 6080 or default language 6080A or 6082A 1 for the 6060 6060A 6060B 6061A or 6062A 2 for the 6070 6070A or 6071A or 3 for the 8642 HP8642A or B language Your language selection is displayed for about 2 seconds Use the GAL command to select the active language from remote GAL without arguments will switch to the 6080 language from any language When in the 6080 language arguments to the GAL command are L6060 L6070 L6080 and L8642 For example to put the Signal Generator in the 6070 language send the following programming string GAL L6070 Some commands do not exist in the compatibility languages To
197. ly and slower than the 6070 family of products Status rejected entry and self test codes are similar but not exactly the same Those codes that are the same will be reported as they are in the 6060 or 6070 instruments Most special functions for the 6060 and 6070 instruments are available in the 6080A 82A and the compatibility language will accept the 6060 or 6070 codes Tables 5D 1 and 5D 2 list the codes and special functions for the 6060 and 6070 compatibility languages Three of the interface modes record unbuffered and valid have been replaced with the interrogate complete IP and wait WA commands Refer to the 6080 language commands OPC and WAI for a description of their operation The response to the IO command will be the code for the 6080A 82A not the compatibility instrument For example the response 10 0 0 indicates that the instrument is a 6080A with no options A single serial poll enable register is maintained for both the 6060 and 6070 compatibility languages This register is effective whenever the 6080 is operated in either of the two languages Refer to the 6060 Instruction Manual or the 6070 Operator Manual for information regarding bit assignments for the enable register and the Status byte The commands available in the 6060 or 6070 compatibility language are listed in Table 5D 3 All compatibility language commands are available in both languages even if that command is not in the instrument being emula
198. mands Interface messages are handled automatically in most cases For example handshake messages DAV DAC and RFD automatically occur under the direction of an instrument s interface itself as each byte is sent over the bus Table 5A 4 Interface Messages that the Signal Generator Accepts RELATED FLUKE 1722A BASIC COMMAND Attention A control line that when asserted None notifies all instruments on the bus that the next data bytes are an interface message When ATN is low the next data bytes are interpreted as device dependent or common commands addressed to a specific instrument Data Accepted Sets the handshake signal line None NDAC low Data Valid Asserts the handshake signal line DAV None Device Clear Clears the input output buffers CLEAR End A message that occurs when None the Controller asserts the EOI signal line before sending a byte Group Execute TRIG Trigger Execute the command string predefined with the DDT command Go To Local Transfers control of the Signal LOCAL Generator from one of the remote states to one of the local states See Table 5A 5 LOCKOUT Transfers remote local control of the Signal Generator See Table 5A 5 Local Lockout 5A 19 REMOTE OPERATION REMOTE PROGRAMMING 5A 20 Table 5A 4 Interface Messages that the Signal Generator Accepts cont FUN
199. mation Displayed RF amplitude with optional power voltage or DB units AMPL 174 MV AMPL 10 0 Rejected during manual or single sweep Retrieves the displayed RF amplitude if REL_AMPL is OFF this is the output RF level If Amplitude Sweep is active returns the center Amplitude Refer to section 4E Sweep for more information None 1 Float Displayed RF amplitude 2 String DBM DBUV DBMV DBF DB V DBUV EMF DBMV EMF or V EMF 1 7400E 01 V 1 0000E 01 DBM Retrieves the RF output level None 1 Float Output RF amplitude 2 String DBM DBUV DBMV DBF V DBUV EMF DBMV EMF or V EMF Retrieves the base amplitude If AMPL_REL is OFF this value is 0 dB Refer to Section 4B RF Amplitude for more details None 1 Float Base RF amplitude 2 String DB V or V EMF 5B 9 REMOTE OPERATION REMOTE COMMAND TABLES 5B 10 AMPL_BRT Description Parameter Examples Restrictions AMPL_BRT Description Parameter Responses Example AMPL_CMPDAT Description Parameter Restrictions AMPL_CMPDAT Description Response AMPL_COMP Description Parameter Restrictions AMPL_COMP Description Parameter Response AMPL_EMFOUT Description Parameter Restrictions Table 5B 3 Remote Commands cont Moves the bright digit to specified decade in amplitude field Note that the units must match the displayed units e g V MV U
200. memerenr tenn AOS er SSR tru shi sss ee seat se rer srtnetummamesstnumatenastnernreemmunetanterput a eof oon INSTRUMENT PRESET STATE Appendix A Instrument Preset State cont SET TO STATES FUNCTION SPCL 00 ee 981 SPCL 01 PRESET Modulation frequency bright digit Modulation level bright digit Modulation display field Active bright digit field STEP Frequency step siz Amplitude step size AM depth step size FM M deviation step size Modulation frequency step size Modulation level step size Active step field MISCELLANEOUS Display SPCL 770 Key repeat rate SPCL 860 Knob and step key operation SPCL 870 Calibration compensation procedures Amplitude compensation SPCL 920 REMOTE Service request enable SPCL 13 Event status enable Instrument status change enable NOTES 1 Store and recall operations include these parameters 2 Power on State SPCL 00 and RCL 98 are not allowed while the 6080A AN is sweeping The following instrument parameters are only set from the Fluke factory or with their associated commands External reference frequency SPCL 760 Standard Memory dividers SPCL 802 0 0 0 0 Memory lock state SPCL 810 Off Output compensation data SPCL 930 Standard IEEE 488 address SPCL 10 2 IEEE 488 addressed isten only alk only SPCL 11 Addressed IEEE 488 language SPCL 12 6080 Language Secure mode SPCL 820 Off RF Out
201. ment decrement keys and the edit knob can be modified with Special Functions 871 through 873 see Table 4F 2 With Special Function 871 the bright digit remains displayed even though edit operations are disabled Table 4F 2 Functions of Edit Knob and Step Keys SPECIAL FUNCTION STEP KEYS EDIT KNOB INCREMENT DECREMENT 870 Enabled Enabled as step Disabled Enabled as step Enabled Enabled as edit Disabled Enabled as edit 4F 5 4F 6 Section 4G Error and Status Reporting GENERAL DESCRIPTION 4G 1 There are five types of status information that the Signal Generator generates Rejected Entry Errors Instrument Overrange Uncal Status Self Test Status Calibration Compensation Data Checksum Status Calibration Compensation Data Origin Status The rejected entry annunciator REJ ENTRY is flashed whenever a front panel or Remote entry is rejected Numeric data in one of the display fields may also flash to indicate the rejected value Any function key may be pressed to clear the flashing entry and the REJ ENTRY annunciator The STATUS annunciator is lit but not flashed to indicate when the Signal Generator is operating outside its specified performance range If abnormal operation or aberrated output occurs the STATUS annunciator is flashed to emphasize the severity of the problem Since there is never more than one rejected entry error at a time rejected entry errors are always given precedence over the status codes T
202. n Parameter Syntax Rules 5A 3 Many of the remote commands require parameters Improper use of parameters causes command errors to occur REMOTE OPERATION REMOTE PROGRAMMING General rules for parameter usage are as follows 1 When acommand has more than one parameter the parameters must be separated by commas For example MEM_DIVIDER 1 25 30 48 2 Numeric parameters may have up to 255 significant digits and their exponents may range from 32000 to 32000 The useful range for Signal Generator programming is 2 2 E 308 to 1 8 E308 3 Specifying more parameters than allowed by a particular command causes a command error 4 Null parameters cause a command error e g the adjacent commas in MEM_DIVIDER 1 25 48 5 Expressions for example 4 2 13 are not allowed as parameters Units that are accepted in command parameters are listed in Table 5B 1 Extra Space Characters 5A 4 Table SB 3 and the remote program examples in this section show commands and their parameters separated by spaces One space after a command is required All other spaces are optional They are shown for clarity in the manual and may be left in or omitted as desired Extra spaces can be inserted between parameters as desired Extra spaces within a parameter are generally not allowed except for between a number and its associated unit EXAMPLE EXPLANATION FREQ 100 MHZ Equivalent to FREQ 100MHZ MEM_DIVIDER 1 25
203. n Invalid memory location for insert delete operation Memory location data invalid AM depth out of range Mod frequency out of range Invalid special function code IEEE bad command syntax IEEE bad argument value IEEE invalid edit or step 000020 000000 000000 000000 000040 000000 000000 000000 000100 000000 000000 000000 000200 000000 000000 000000 000000 000001 000000 000000 000000 000002 000000 000000 000000 000004 000000 000000 000000 000010 000000 000000 000000 000020 000000 000000 000000 000040 000000 000000 5D 5 REMOTE OPERATION COMPATIBILITY LANGUAGES 5D 6 Table 5D 2 6070 Compatibility Language Codes and Special Functlons cont RETURNED IN 6070 MODE EQUIVALENT DESCRIPTION 6080 STATUS 000000 000100 000000 000000 000000 000200 000000 000000 000000 000000 000001 000000 000000 000000 000004 000000 IEEE invalid bright digit value Bright digit cannot be enabled during sweep Frequency out of range Frequency step size sweep width sweep increment out of range Entry conflicts with current sweep Cannot enable sweep with current parameters Amplitude out of range Amplitude unit conversion out of range Units conversion not allowed with voltage reference All other rejected entry codes new for 6082A 000000 000000 000010 000000 000000 000000 000020 000000 000000 000000 000000 000001 000000 000000 000000 00000
204. n parameter for later use Pressingthe ac key followed bya FUNCTION key recalls only the specified parameter leaving all other Signal Generator parameters unchanged For example entering sto FREQ saves the current RF output frequency Entering aa Frea recalls the parameter value without affecting any other programmed functions FRONT PANEL OPERATION INSTRUMENT STATE MEMORY The RF output frequency store and recall operations preserve the state of Relative Frequency Mode along with the offset and the reference value Likewise the RF amplitude store and recall operations preserve the state of Relative Amplitude Mode along with the offset and the reference value SECURE MODE AND NONVOLATILE MEMORY ERASURE 4D 8 The Signal Generator provides a special operating mode called secure mode with the following properties 1 Ifsecure mode is enabled when the Signal Generator is powered off nonvolatile memory is erased automatically when the Signal Generator is powered back on 2 Ifsecure mode is enabled nonvolatile memory is erased automatically when secure mode is disabled 3 Ifsecure mode is enabled and the display is blanked the display cannot be restored until secure mode is disabled 4 Nonvolatile memory can be erased at any time using a separate front panel Special Function or remote command whether or not secure mode is enabled Nonvolatile memory can be erased even if it has been write protected NOTE Wh
205. n the CAL COMP switch is in the 1 on position 0 lt user data gt lt ASCII Line Feed with EOl gt or lt non zero digit gt lt digits gt lt user data gt For both forms the bytes received in the lt user data gt field are stored in non volatile memory and up to 63 bytes are allowed The first form accepts data bytes after the 0 until the ASCII Line Feed character is received with an EOI signal In the second form the non zero digit specifies the number of characters that will follow in the lt digits gt field These characters must be 0 through 9 ASCII 48 through 57 decimal The value of the number in the lt digits gt field defines the number of user data bytes that will follow in the lt user data gt field Examples PUD Description Parameter Response Example PULSE_WIDTH Description Parameter Example Restrictions PULSE_WIDTH Description Parameter Responses Example Description Parameter Restrictions REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Stores the word FLUKE in the protected user data area PUD 0FLUKE lt Line Feed with EOl gt or PUD 15FLUKE NOTE The 1 indicates that there is one digit to follow in this case 5 and the 5 indicates that there are five characters in the remainder of the PUD message in this case FLUKE Retrieves protected user data buffer None non zero di
206. nal Pressing the key again disables External DC AM as does the EXTDC_AM OFF command in remote NOTE When AM is enabled the amplitude band switch point may change See RF Output Amplitude Bands in Section 4B for details FREQUENCY AND PHASE MODULATION FM M 4C 13 Frequency modulation FM deviation and phase modulation M deviation are displayed in the Signal Generator front panel MODULATION display field with three digits of resolution FM is displayed with MHz DEV kHz DEV or Hz DEV units and M is displayed with rad units M entries and modifications are processed internally as FM after the oM deviation is converted to an equivalent FM deviation The modulation circuitry is configured to maintain this relationship over the range of allowed modulation frequencies and deviations Because of this direct relationship between FM and M this section focuses on FM programming with references to 6M where appropriate NOTE FM and M are always mutually exclusive For FM external ACFM and external DCFM are mutually exclusive For 6M external ACbM and external DC M are mutually exclusive Enabling external ACFM while external DCFM is enabled turns off external DCFM and vice versa The same holds true for M Setting FM M Deviation and FM M Step Size 4C 14 The FM M deviation and FM M deviation step size are controlled using the FUNCTION DATA UNIT entry sequence Pressing the FM M deviation function key FMiom ca
207. nal between programming commands For example FM100HZSUROI is equivalent to FM100HZ SU RO1 In the 6080 language comma is defined to be a data separator and is required between data elements The semicolon is defined to be the message unit separator and is required between programming commands For example FM 100 HZ STEP_FM UP RFOUT ON Units in the 6080 language are defined by the IEEE 488 2 standard and are not the same as the 6060 and 6070 Table 5D 4 lists the units in both languages The 6080 language uses parameters that are mnemonic such as ON and OFF to replace the 1 or 0 used in the compatibility language The IEEE 488 2 common command IDN returns manufacturer model serial number and software version number This one command replaces the compatibility commands ID IS and IV A status response in the compatibility language was defined to include the terminator character For example if the serial poll register enable SRQ mask is 134 the command IM IM terminator will return 134 terminator 134 terminator In the 6080 language multiple queries within one program message are separated by semicolons and a terminator is sent at the end For example SRE SRE terminator will return 134 134 terminator In the compatibility language the terminator is programmable but in the 6080 language it is always linefeed with EOI asserted Table 5D 4 6060 and 6070 Compatibility Language
208. nance personnel The set includes the following manuals 6080A 82A Operator Manual PN 861034 6080A 82A Operator Reference Guide PN 882154 6080A 82A Remote Programming Reference Guide PN 882147 6080A 82A Special Functions Decal PN 860911 6080A Service Manual PN 868914 6082A Service Manual PN 881888 Each Signal Generator is shipped one each of the first four manuals above plus the applicable Service Manual The two reference guides and the special functions decal are packaged with this Operator Manual You can order additional copies of the manuals reference guides or decal separately using the part number provided For ordering instructions refer to the Fluke Catalog or contact a Fluke sales representa tive A list of Fluke Sales and Service Centers is in Appendix G 6080A 82A Operator Manual 1 3 This 6080A 82A Operator Manual provides complete information for installing the Signal Generator and operating it from the front panel controls and in remote over the IEEE 488 Bus 6080A 82A Operator Reference Guide 1 4 The 6080A 82A Operator Reference Guide is a pocket sized booklet that contains a summary of operating instructions from this Operator Manual including a front and rear panel feature reference special function codes and status and error codes 6080A 82A Remote Programming Reference Guide 1 5 The 6080A 82A Remote Programming Reference Guide is a pocket sized booklet that contains a summary of remote operatin
209. ndard The IEEE 488 2 standard does not cover listen only operation The listen only mode is selected by the talker listener special function described in Section 5 Remote Operation When the mode is changed the IEEE 488 interface chip is reset and any current IEEE 488 bus activity is discarded In listen only the signal generator is always in local and is always addressed as a listener The ADDR annunciator is always lit In listen only the Signal Generator will respond to all commands that are allowed with the exception of queries and calibration compensation commands These commands will be processed with no errors but nothing will be sent over the bus In listen only device clear trigger and serial poll messages will be ignored LISTEN ONLY TALK ONLY EXAMPLE 5C 4 The Signal Generator can be connected to another Signal Generator in a master slave configuration In the following example two Signal Generators are configured to track each other in frequency This configuration may be used to track frequency amplitude AM FM Modulation Frequency or Modulation Level 1 Connect two Signal Generators together with an IEEE 488 cable 2 Set the talker listener mode of the first Signal Generator talker to talk only by entering sec 1 1 then entering 1 in response to the prompt 3 Set the talker listener mode of the second Signal Generator listener by entering ser 1 1 then entering 2 in r
210. ndards e CE03 of MIL STD 461B Power and interconnecting leads 0 015 to 50 MHz e REO2 of MIL STD 461B 14 kHz to 10 GHz FCC Part 15 Class B VDE 0871B CISPR 22 Size Width Height Depth 43 cm 13 3 cm 59 7 cm 17 in 5 25 in 23 5 in Power Requirements 100 120 220 or 240V each 10 48 63 Hz 200 VA lt 15 VAin standby with any options installed Weight 30 kg 65 Ibs OPTION 130 HIGH STABILITY REFERENCE Aging Rate lt 5 x 10 day after 21 days continuous operation Temperature Stability lt t2 x 10 C Oven remains powered in standby OPTION 132 MEDIUM STABILITY REFERENCE Aging Rate lt t1 x 107 month after 5 days continuous operation Temperature Stability lt 1 x 107 0 to 50 C OPTION 830 REAR PANEL CONNECTORS Moves connectors for MODULATION INPUT MOD output and RF OUTPUT to the rear panel The front panel connector locations are covered with plugs SUPPLEMENTAL CHARACTERISTICS The following characteristics are provided to assist in signal generator applications and to describe some other aspects of typical performance Frequency Switching Speed lt 100 ms to settle within 100 Hz Amplitude Switching Speed lt 100 ms to settle within 0 1 dB Pulse Modulation Delay 80 ns typical 1 19 1 20 Section 2 Installation INTRODUCTION 2 1 This section provides instructions for unpacking and installing the Signal Generator Procedures for selecting line voltage replacing the fuse rack mounting
211. nection by way of the grounding conductor in the power cord is essential for safe operation USE THE PROPER POWER CORD Use only the power cord and connector appropriate for the voltage and plug configuration in your country Use only a power cord that is in good condition Refer cord and connector changes to qualified service personnel DO NOT OPERATE IN EXPLOSIVE ATMOSPHERES To avoid explosion do not operate the signal generator in an atmosphere of explosive gas DO NOT REMOVE COVER To avoid electric shock do not remove the signal generator cover Do not operate the signal generator without the cover properly installed Normal calibration is accom plished with the cover closed and there are no user serviceable parts inside the signal generator so there is no need for the operator to ever remove the cover Access procedures and the warnings for such procedures are contained in the Service Manual Service procedures are for qualified service personnel only DO NOT ATTEMPT TO OPERATE IF PROTECTION MAY BE IMPAIRED If the signal generator appears damaged or operates abnormally protection may be impaired Do not attempt to operate it When in doubt have the instrument serviced Table of Contents SECTION TITLE PAGE 1 INTRODUCTION AND SPECIFICATIONS 00 0 0 cc cece cece eae 1 1 1 1 INTRODUCTION teins osc She tech dere dew lr E aid oink es etne were 1 1 l 2 INSTRUCTION MANUALS 0 cece cece cece cence ceenc
212. nector is amplitude modulating the output Indicates that the de coupled signal at the AM MODULATION INPUT DC AM connector is amplitude modulating the output Indicates that the dc coupled signal at the FM OM MODULATION INPUT DC FM connector is frequency modulating the output Indicates that the ac coupled signal at the FM M MODULATION INPUT FM connector is frequency modulating the output Indicates that the ac coupled signal at the FM M MODULATION INPUT OM connector is phase modulating the output Indicates that the de coupled signal at the FM M MODULATION INPUT DC M connector is phase modulating the output Indicates that the de coupled signal at the FM M MODULATION INPUT connector is pulse modulating the output Indicates that the Step Size Entry and Step Increment and Decrement keys affect the displayed modulation parameter Indicates that the value displayed is the AM depth in percent Indicates that the value displayed is the FM deviation in MHz kHz or Hz Indicates that the value displayed is the Phase Modulation Deviation in radians Indicates that the value displayed is the target level in dBm when performing a level calibration compensation procedure FEATURES 3 3 FEATURES Table 3 1 Front Panel Features cont LO RATE Indicates that the Signal Generator is in low rate FM modulation mode AM HI Indicates that the extern
213. ng HZ 1 000001000E 05 HZ MODF_BRT Description Parameter Example Restrictions MODF_BRT Description Parameter Responses MODF_STEP Description Parameter Restrictions MODF_STEP Description Parameter Responses MODL Description Parameter Examples Restrictions MODL Description Parameter Responses Example REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Moves the bright digit to specified decade in modulation frequency field The default units are HZ Bright digit decade in modulation frequency display field with optional frequency units MODF_BRT 1 0 KHZ Rejected during manual or single sweep Retrieves the decade of modulation frequency bright digit position None 1 Float Bright digit decade in modulation frequency display 2 String HZ Programs the modulation frequency step size in Hz The default units are HZ Modulation frequency step size with optional frequency units Rejected during manual or single sweep Retrieves the modulation frequency step size None 1 Float Modulation frequency step size 2 String HZ Programs the modulation level in volts The default units are V Modulation level with optional voltage units MODL 1 MODL 100 MV Rejected during manual or single sweep Retrieves the modulation level None 1 Float Modulation level 2 String V 1 000E 0
214. nless internal modulation is enabled The Mod Frequency step size is selected for entry by pressingthe ster key after selecting the Mod Frequency function As a shortcut method use the 4 900 key to toggle the Mod Frequency between 400 and 1000 Hz The MODULATION display field is updated to reflect 400 Hz or 1 00 kHz as the values are selected This key is inactive when the front panel bright digit is turned off MODULATION FREQUENCY RANGE RESOLUTION 0 1 Hz to 200 kHz 3 digits SYNTAX Modulation Frequency numeric data Modulation Frequency Step Size numeric data EXAMPLE 1 Set Modulation Frequency to 19 kHz FRONT PANEL Oj REMOTE MODF 19 KHZ EXAMPLE 2 Set Modulation Frequency Step Size to 1 kHz FRONT PANEL EN REMOTE MODF_STEP 1 KHZ 4C 2 FRONT PANEL OPERATION MODULATION Setting Modulation Level and Step Size 4C 4 Modulation level refers to the peak level signal present at the front panel connector labeled MOD OUTPUT into a 6002 load The modulation level Mod Level is displayed in the Signal Generator front panel MODULATION display field with three digits of resolution Fhe Mod Level is displayed with V units with the MOD LEVEL annunciator on The Mod Level and Mod Level step size are controlled using the FUNCTION DATA UNIT entry sequence Pressing the key causes the MODULATION display field to display the current Mod Level moves the bright digit to the MODULATION display field and places
215. nput signal Two annunciators on the front panel give indications of when the external ACFM or ACM modulation signal is outside the range of 2 of 1V These annunciators are only lit when external ACFM or AC M is enabled and are not active when external DCFM or DC M is enabled If the signal is more than 1 02V the FM HI annunciator is lit If the signal is less than 0 98V the FM LO annunciator is lit Activating External FM DC Coupled 4C 18 External DCFM is enabled by pressing the key from the front panel or with the EXTDC_FM ON command in remote The EXT DC FM annunciator is lit when External FM is enabled and the EXT DC M annunciator is lit when External DC M is enabled When either is enabled the modulating signal is applied through the front panel external FM M input connector External FM M is normalized for a 1V pk input signal Pressing the key again disables External FM M as does using the EXTDC_FM OFF command in remote The external DCFM mode allows the RF signal to be frequency modulated by dc or by slowly varying ac rates by an input signal connected to the front panel FM M MODULATION INPUT connector Enabling DCFM forces the FM circuitry to search for a correction voltage that maintains the RF frequency when the FM loop is unlocked The FM loop is then configured to the unlocked state and the dc coupled path from the external FM M connector is selected This search for the FM loop correction voltage is called a DCFM
216. nt The default units are PCT AM depth with optional PCT or units AM 63 2 PCT AM 63 2 Rejected during manual or single sweep Retrieves the AM depth None 1 Float AM depth 2 String PCT 6 320E 01 PCT Moves the bright digit to specified decade in AM field The default units are PCT Bright digit decade in AM display with optional PCT or units AM_BRT 1 PCT AM_BRT 1 Rejected during manual or single sweep Retrieves the decade of AM bright digit position None 1 Float Bright digit decade in AM display 2 String PCT 1 0E 0 PCT Programs the AM depth step size in percent The default units are PCT AM depth step size with optional PCT or units Rejected during manual or single sweep Retrieves the AM depth step size None 1 Float AM depth step size 2 String PCT Description Parameter Examples Restrictions AMPL Description Parameter Responses Examples AMPL_ABS Description Parameter Responses AMPL_BASE Description Parameter Responses REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Programs the displayed RF amplitude in dBm dByV dBmV dBf dB or V Default units are DBM If REL_AMPL is OFF this is the output RF level Refer to Section 4B RF Amplitude for more details f Auto Amplitude Sweep is active programs the center Amplitude Refer to Section 4E Sweep for more infor
217. nual or single sweep Selects the amplitude bright digit field and edit amplitude by the specified number of counts Number of counts by which bright digit is edited EDIT_AMPL 293 Rejected during manual or single sweep Selects the FM bright digit field and edit FM by the specified number of counts Number of counts by which bright digit is edited Rejected during manual or single sweep Selects the frequency bright digit field and edit frequency by the specified number of counts Number of counts by which bright digit is edited FREQ_BRT 1 HZ EDIT_FREQ 172 Rejected during manual or single sweep Selects the modulation frequency bright digit field and edit modulation frequency by the specified number of counts Number of counts by which bright digit is edited Rejected during manual or single sweep Selects the modulation level bright digit field and edit modulation level by the specified number of counts Number of counts by which bright digit is edited Rejected during manual or single sweep 5B 19 REMOTE OPERATION REMOTE COMMAND TABLES 5B 20 ERASE_RPT Description Parameter ERASE_RPT Description Parameter Response ERROR Description Parameter Examples Responses Description Parameter Example ESE Description Parameter Response Example Table 5B 3 Remote Commands cont Programs the nonvolatile memory erase repeat count for the MEM_
218. o avoid ambiguity the STATUS annunciator is always turned off when the rejected entry annunciator is flashing The Self Test Status and Calibration Compensation Data Status are not presented in the normal operation of the Signal Generator A Special Function command displays the active status codes for these conditions THE STATUS KEY 4G 2 When the REJ ENTRY annunciator is flashing pressing the S TYS key displays the Rejected Entry Error Code when the STATUS annunciator is flashing or lit pressing the key displays the Overrange or Uncal Status Codes These codes provide detailed information on the nature of the rejected entry or status condition To avoid ambiguity every Rejected Entry Overrange Uncal Self Test and Calibration Compensation memory condition has a unique status code These codes are organized numerically to facilitate their interpretation as shown in Table 4G 1 A numeric list and explanation of all of the error and status codes is presented in Appendixes C D and E FRONT PANEL OPERATION ERROR AND STATUS REPORTING Table 4G 1 Interpreting Status Codes ERROR STATUS CODE INTERPRETATION 00 No Errors or Status 01 to 199 Rejected Entry Errors 201 to 299 Instrument Overrange or Uncal Status 301 to 399 Self Test Status 401 to 499 Calibration Compensation Data Checksum Status 501 to 599 Calibration Compensation Data Origin Status When the front panel REJ ENTRY annunciator is flashing pressing the sta
219. o dBm AMPL_UNITS DBM SELECTING ALTERNATE DB REFERENCE UNITS 4B 4 If the RF output amplitude is displayed as a dBm quantity alternate units of dBmV dBzV or dBf may be selected Selection of an alternate dB reference does not change the output of the Signal Generator The selected alternate units are retained when changing to or from voltage units and remain in effect for any Amplitude entry terminated with the unit key To select an alternate dB reference unit from the front panel use a Special Function To select an alternate amplitude unit in remote use the alternate amplitude unit as the unit terminator for the AMPL command See Section 5 Remote Operation for more information ALTERNATE AMPLITUDE UNITS dBmV dBm 47 0 dBuV dBm 107 0 dBf dBm 120 0 SYNTAX FRONT PANEL REMOTE Select dBm Units C Select dBmV Units Select dB uV Units Select dBf Units AMPL lt numeric value gt DBM AMPL numeric value gt DBMV Co Eni ee C4 C2 AMPL lt numeric value gt DBUV CGI AMPL lt numeric value gt DBF FRONT PANEL OPERATION RF OUTPUT AMPLITUDE USING UNTERMINATED OUTPUT EMF MODE 4B 5 When enabled unterminated output mode EMF units causes amplitude values to be doubled for voltage units or offset by 6 dB for dBmV or dByV units This includes the displayed amplitude the base amplitude if the relative amplitude mode is on the amplitude sweep increment if in volts and the amplitude sweep width if
220. ommands specific to the Signal Generator 3 Queries Commands that cause the Signal Generator to send a response to the controller These commands always end with a question mark A controller program first needs to initialize the interface and the Signal Generator The following sample program can be used PUT SIGNAL GENERATOR IN REMOTE CLEAR IEEE 488 INTERFACE SET TO 488 2 LANGUAGE CLEAR ERRORS amp RESET SIG GEN DON T GENERATE SRQs 10 INIT PORT O REMOTE 2 20 CLEAR 2 25 PRINT 2 GAL 30 PRINT 2 CLS RST 40 PRINT 2 SRE O oe mo oae oam If the programmer wishes to use SRQs the SRE ESE and ISCE commands should be used to enable the desired event Refer to Checking the Instrument Status later in Section 5A for more information Programming the Signal Generator involves sending the desired commands to the instrument as shown in the following program 5A 1 REMOTE OPERATION REMOTE PROGRAMMING 100 PRINT 2 FREQ 100 MHZ AMPL 15 DBM PROGRAM FREQUENCY AND AMPLITUDE 110 PRINT 2 RFOUT ON TURN RF OUTPUT ON 120 PRINT 2 FM 1 2 KHZ EXTAC_FM ON PROGRAM DEVIATION amp ENABLE EXTERNAL FM Instrument parameters can be retrieved with a query programming commands that contain a question mark 200 PRINT 2 FREQ RETRIEVE FREQUENCY 210 INPUT LINE 2 A 220 PRINT Frequency is A 230 PRINT 2 RFOUT RETRIEVE RF OUTPUT STATE 240 INPUT LINE 2 A 250 PRINT RF
221. omp Data Co 4 STATUS CHECKSUM Checksum Status STATUS Display Load CalComp Data sect 0 Cs buus STATUS ORIGIN Origin Status STATUS PRL eee TENT Le NIRAN E TE ER aT EENE ree TE SIIRI E I L AL ER Ee a eT ee ET LEETE E Ce ea Tae TENT TET Section 5 Remote Operation INTRODUCTION 5 1 The Signal Generator operates directly from the front panel controls or under remote control of an instrument controller or computer The following sections describe how to connect configure and operate the Signal Generator in the remote mode The Signal Generator is fully programmable for use on the IEEE Standard 488 1 interface bus IEEE 488 bus The interface also complies with supplemental standard IEEE 488 2 Devices connected to the bus in a system are designated as talkers listeners talker listeners or controllers Under the remote control of an instrument controller such as the Fluke 1722A the Signal Generator operates exclusively as a talker listener on the IEEE 488 bus This operation is described in Section 5A Remote Programming The programming commands are listed in Section 5B Remote Command Tables For an introduction to the basics of the IEEE 488 interface bus request Fluke Application Bulletin AB 36 IEEE Standard 488 1978 Digital Interface for Pro grammable Instrumentation The Signal Generator can also be operated on the IEEE 488 bus without an instrument controller in a talk only or listen only mode
222. one 1 Float Frequency step size 2 String HZ 3 002300000E 08 HZ FREQ_SWIDTH Description Parameter Example Restrictions FREQ_SWIDTH Description Parameter Responses Example GAL Description Parameter HIRATEPM Description Parameter Restrictions HIRATEPM Description Parameter Response IDN Description Parameter Responses Example REMOTE OPERATION REMOTE COMMAND TABLES Table 58 3 Remote Commands cont Programs the frequency sweep width in Hz The default units are HZ Note that a negative value will cause a sweep from a higher frequency to a lower frequency Sweep width with optional frequency units FREQ_SWIDTH 9 634 KHZ Rejected during manual or single sweep Retrieves the frequency sweep width None 1 Float Frequency sweep width 2 String HZ 9 634000000E 03 HZ Changes to alternate language the specified language is remembered when the power is turned off See Saction 5D Compatibility Languages L6080 or L6070 or L6060 or L8642 Turns high rate M mode On or Off ON or OFF or 1 or 0 Rejected during sweep Retrieves the state of the high rate M mode None String ON or OFF Retrieves instrument identification None 1 String FLUKE 2 String Model 3 String Serial Number 4 String Firmware Level FLUKE 6080A 12345678 V1 0 ee ee eT TN Lee NEE PEP NE LARS E E IODE E RE Fete ALR ee TA
223. one 1 Integer Dwell time 2 String S Selects the sweep field FREQ Frequency AMPL Amplitude Rejected during sweep Retrieves the sweep field None String FREQ or AMPL Selects the sweep symmetry ASYM Asymmetrical SYMM Symmetrical Rejected during single sweep Retrieves the sweep symmetry None String ASYM or SYMM Programs alternate attenuator settings A24B or A24C or A24D or A24E Rejected during sweep Executes display test None Rejected during sweep TRG Description Parameter TST Description Parameter Response Restrictions Description Parameter REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Triggers device Cause the commands defined with the DDT common command to be executed If the DDT has been specified with a zero length data block no action will be taken None Initiates a series of self tests then returns a 0 for pass or a 1 for fail f any tests fail they can be loaded into the status queue with the STATUS SELF TEST command The enqueuved status codes can be queried with the STATUS command Refer to the Service Manual for a description of tests performed None Integer 0 for Pass or 1 for Fail Turns sweep or calibration or compensation procedure off Waits until all pending remote operations are complete This command prevents further remote commands from being executed
224. ons with or without exponents A data type suitable for sending integer numeric representations in base 16 8 or 2 An optional field following DECIMAL NUMERIC PROGRAM DATA used to indicate associated multipliers and units A data type suitable for sending 7 bit ASCII character strings where the content needs to be hidden by delimiters A data type suitable for sending blocks of arbitrary 8 bit information Blocks are limited in size to 1024 bytes REMOTE OPERATION REMOTE PROGRAMMING Interface Messages 5A 37 Interface messages manage traffic on the bus Device addressing and clearing data handshaking and commands to place status bytes on the bus are all directed by interface messages Some of the interface messages are communicated by state transitions of dedicated control lines The rest of the interface messages are sent over the data lines with the ATN signal true All device dependent and common commands are sent over the data lines with the ATN signal false IEEE 488 standards define interface messages Table SA 4 lists the interface messages that the Signal Generator accepts Table 5A 4 also shows the BASIC statement to execute on the 1722A Controller to generate the interface message Table 5A 5 lists the interface messages that the Signal Generator sends The mnemonics listed in the tables are not sent in BASIC PRINT statements as commands are in this way they are different from device dependent and common com
225. ontrols on the front panel are used to control the Signal Generator In Remote an IEEE 488 controller controls the Signal Generator by sending programming commands over the IEEE 488 Interface Section 5 provides instructions for remote operation NOTE To meet the specified radiated emissions a shielded IEEE 488 cable such as a Fluke Y8021 must be used POWER ON SEQUENCE 2 9 When the Signal Generator is turned on a power on sequence starts During the power on sequence the microprocessor tests the front panel display the analog circuitry the instrument RAM and the nonvolatile memory containing compensation and calibration data A front panel display test lights all segments for a brief period while the rest of the self tests take place After succesful completion of the self tests the Signal Generator is in the preset state as defined in Appendix A The instrument settings in effect when the Signal Generator was turned off can be recalled by pressing ex fo 0 If any of the self tests fail the Signal Generator displays one or more status codes Any front panel entry that occurs before the power on sequence is completed aborts the self test and sets the Signal Generator to the preset state The power on self tests are explained in detail in the Service Manual 2 5 2 6 Section 3 Features INTRODUCTION 3 1 Section 3 is a reference for the functions and locations of the front panel and rear panel features of the Signal
226. operation Program special functions Sequence up to next mem loc Start single sweep operation Save store memory location Step up Program frequency sweep width Set terminator mode Trigger device Wait until operation complete Set I O byte Set I O word Query attenuator value Set attenuator value Set local alert mode Fast RF on off Converting 6060 and 6070 Programs to Use the 6080 Language 5D 5 Users of 6060 and 6070 instruments may wish to convert their programs to use the new features available in the 6080 language The following paragraphs describe the differences between the compatibility language and the 6080 language to help with the conversion In the 6080 language programming mnemonics are longer and more meaningful than the two character commands in the compatibility language Refer to Tables 5D 3 fora list of compatibility language commands and Table 5B 3 for a list of 6080 language commands In the 6080 language special functions are accessed mnemonically rather than with special function codes as they are in the compatibility language Device clear and the RST command are defined by the IEEE 488 2 standard The 6080 device clear is limited to clearing the input buffer and output queue and turning sweep and cal comp procedures off The RST does a recall location 97 and clears the trigger buffer In the compatibility language the device clear clears the input and output queue and the equivalent of a CL command
227. or Frequency Bands BAND DESIGNATION FREQUENCY RANGE MHz DIVIDE RATIO 01 to 14 999999 0 1 to 14 999999 15 to 31 999999 32 to 63 999999 64 to 127 999999 128 to 255 999999 256 to 511 999999 512 to 1056 512 to 1055 999999 1056 to 2112 G 6080A G 6082A H 6082A 8 Het 8 Het RF OUTPUT BLANKING DURING FREQUENCY CHANGES 4A 8 The Signal Generator output typically settles within 100 ms after you change the frequency During the transition period frequency transients may appear at the RF output particularly when the change causes frequency synthesis circuitry to rerange If transients that occur during frequency range changes are troublesome in your application you can suppress them by enabling Special Function 781 Special Function 780 disables the mode Special Function 781 blanks the RF output for 60 ms during synthesis hardware transitions before the RF output is set to the new programmed value Table 4A 1 lists the major frequency bands In addition there are many minor bands that also cause the RF output to be blanked when Special Function 781 is active as their limits are crossed SYNTAX FRONT PANEL Disable RF Output Ez Lo Blanking Mode Enable RF Output CJ C Blanking Mode REMOTE FREQ_BLANK OFF FREQ_BLANK ON Section 4B RF Output Amplitude INTRODUCTION 4B 1 Section 4B describes the procedures for programming the RF output amplitude and the associated parameters of RF output
228. or for sweep z axis blanking peniift pin CONNECTOR 4 and sweep DAC x axis signals pin 5 It is also for remote control of bright digit and memory sequence up and down operations See Appendix F for the pinout diagram Section 4 Front Panel Operation INTRODUCTION 4 1 Section 4 provides instructions for operating the Signal Generator using the front panel controls The front panel features are described in Section 3 Each of Sections 4A through 4G describes procedures that are specific to one area of Signal Generator operation Included with instructions for a particular operation are the equivalent remote IEEE 488 bus commands This is intended to help the remote programmer who needs to refer to the operating instructions while writing a remote program Refer to Section 5 for complete information about programming the Signal Generator via the IEEE 488 bus RECALLING PREVIOUS INSTRUMENT SETTINGS AT POWER UP 4 2 Every time you toggle the power off and on the Signal Generator is reset to the Preset State as listed in Appendix A However the settings that were in effect when the power was turned off are saved in non volatile memory as instrument state memory location 00 To recall the previous settings including programmed step sizes active modes etc press ac o 0 For more information about storing and recalling up to 50 different sets of instrument states refer to Section 4D For more information about the
229. or in the FREQUENCY display field is lit when any of these special operating modes are enabled In addition the SPCL annunciator is lit for Special Functions for which there is a dedicated annunciator but are context dependent For example enabling the low rate FM Special Function lights the SPCL annunciator immediately but the LO RATE annunciator is lit only if Internal or External FM is also enabled MISCELLANEOUS SPECIAL FUNCTIONS 4F 5 Disable Special Functions 4F 6 Enabled stored mode Special Functions except Secure Mode can be cleared with Special Function 00 Restore Instrument Preset State 4F 7 Enabled stored mode Special Functions can also be cleared with Special Function 01 This function recalls memory location 97 clears all sweep modes and cal comp procedures The scope of Special Function 01 is detailed in Appendix A Execute Self Test and Display Self Test Results 4F 8 The Signal Generator performs self tests of its digital and analog hardware at power on or by Special Function Self tests can be run at any time with Special Function 02 The test sequence can be terminated immediately by pressing any front panel key At the end of the test sequence the Signal Generator assumes the power on state Numeric error codes are displayed if one or more of the self tests failed If the tests were aborted with a key entry error code 301 is displayed to indicate that the tests were not run to completion The results of the
230. or the module exchange procedure sameeren ae terrence ee Rath Se eH ay ee are Apes INTRODUCTION AND SPECIFICATIONS SPECIFICATIONS 1 10 Table 1 1 lists specifications for Model 6080A Table 1 2 lists specifications for Model 6082A Specifications are valid after a warm up period of 20 minutes Specifications remain valid after two years only if the Signal Generator is calibrated at that time as described in the service manual and every two years or more frequently thereafter In the Specification tables dBc refers to decibels relative to the amplitude of the carrier 1 4 INTRODUCTION AND SPECIFICATIONS Table 1 1 Specifications for Model 6080A FREQUENCY Range 10kHz to 1056 MHz Also see Internal Modulation Oscillator for coverage from 0 1 Hz to 200 kHz Frequency Bands The carrier frequency band endpoints are shown below BAND APPROXIMATE SPECIFIC DESIGNATION CARRIER FREQUENCY CARRIER FREQUENCY BAND MHz BAND MHz 0 01 to 15 0 01 to 14 999 999 15 to 32 15 to 31 999 999 32 to 64 32 to 63 999 999 64 to 128 64 to 127 999 999 128 to 256 128 to 255 999 999 256 to 512 256 to 511 999 999 512 to 1056 512 to 1056 Resolution 1 Hz Display Resolution 10 digits Stability Same as Internal Reference Oscillator 10 MHz INTERNAL REFERENCE OSCILLATOR Type Temperature Compensated Crystal Oscillator TCXO Temperature Stability Less than 1 ppm p p over the range 0 to 50 C Typical Aging Rate Less than 1 ppm yr Refe
231. output is A 260 PRINT 2 FM EXTAC_FM RETRIEVE DEVIATION amp EXTERNAL FM STATE 270 INPUT LINE 2 A 280 PRINT FM info is A After the program has run the output is Frequency is 1 000000000E 08 H2 RF output is ON FM info is 1 200E 03 HZ ON Programming errors may be checked by the following sample programs The Error Available EAV bit in the serial poll register may be checked using a serial poll 300 A SPL 2 CHECK FOR ERRORS 310 IF A AND 8 THEN PRINT There was an error 320 PRINT 2 CLS CLEAR ERRORS The error and an explanation can be checked as follows Since errors are accumulated in a queue the entire queue must be read to retrieve and clear all the errors 400 PRINT 2 ERROR EXPLAIN CHECK FOR ERRORS 410 INPUT 2 A A 420 IF A 0 THEN GOTO 500 NO MORE ERRORS 430 PRINT Error A A PRINT ERROR AND EXPLANATION 440 GOTO 400 500 END COMMAND SYNTAX INFORMATION 5A 2 The following syntax rules apply to all the remote commands A command consists of a word by itself or a word followed by one or more parameters The rules for parameter syntax are provided first including proper usage of units followed by the rules for extra spaces followed by the rules for terminator usage A description of how the Signal Generator processes incoming characters provides the basis for answering other possible questions about syntax Information about syntax of response messages is also give
232. p compensation procedure Front panel output compensation procedure Front panel output compensation w default attenuator procedure Front panel attenuator compensation procedure Front panel subsynthesizer compensation procedure Front panel attenuator comp procedure power meter Display Het offset adjustment following output comp procedure Front panel AM calibration procedure Front panel FM calibration procedure Front panel level calibration procedure Front panel reference oscillator calibration procedure Appendix C Rejected Entry Error Codes REJECTED ENTRY ERROR CODES ERROR CODE Appendix C Rejected Entry Error Codes DESCRIPTION FREQUENCY Frequency out of range Frequency step size out of range Frequency sweep width out of range Frequency sweep increment out of range AMPLITUDE Amplitude out of range Amplitude units conversion out of range Amplitude units conversion not allowed with voltage reference Amplitude step size out of range Amplitude step with mixed units not allowed Amplitude step sweep width sweep increment units conversion not allowed Amplitude sweep width out of range Amplitude sweep increment out of range AM depth out of range AM step size out of range FM oM DEVIATION FM eM deviation out of range FM eM step size out of range FM eM units conversion not allowed when external FM enabled FM oM units conversion out of range FM oM step with mixed units not allowed FM
233. pth 43 cm 13 3 cm 59 7 cm 17 in 5 25 in 23 5 in Power Requirements 100 120 220 or 240V each 10 48 63 Hz 200 VA lt 15 VA in standby with any options installed Weight 27 kg 60 Ibs OPTION 130 HIGH STABILITY REFERENCE Aging Rate lt t5 x 10 day after 21 days continuous operation Temperature Stability lt t2 x 109 C Oven remains powered in standby OPTION 132 MEDIUM STABILITY REFERENCE Aging Rate lt t1 x 10 month after 5 days continuous operation Temperature Stability lt t1 x 107 0 to 50 C OPTION 830 REAR PANEL CONNECTORS Moves connectors for MODULATION INPUT MOD output and RF OUTPUT to the rear panel The front panel connector locations are covered with plugs SUPPLEMENTAL CHARACTERISTICS The following characteristics are provided to assist in signal generator applications and to describe some other aspects of typical performance Frequency Switching Speed lt 100 ms to settle within 100 Hz Amplitude Switching Speed lt 100 ms to settle within 0 1 dB Pulse Modulation Delay 80 ns typical INTRODUCTION AND SPECIFICATIONS 1 12 Table 1 2 Specifications for Model 6082A FREQUENCY Range 100 kHz to 2112 MHz See Interna Modulation Oscillator for coverage from 0 1 Hz to 200 kHz Frequency Bands The carrier frequency band endpoints are shown below BAND APPROXIMATE SPECIFIC DESIGNATION CARRIER FREQUENCY CARRIER FREQUENCY BAND MHz BAND MHz
234. pulse input is TTL compatible terminated in 50Q with internal active pull up It can be modeled as 1 2V in series with 50Q at the pulse mod input connector The instrument senses input terminal voltage and turns the RF OUTPUT off when the terminal voltage drops below 1 0 1V The maximum allowable input is 10V PULSE MODULATION For RF Output Frequencies lt 10 MHz Rise and Fall Times lt 2 times the period of the RF output frequency Level Error For pulse widths gt 10 times the period of the RF output frequency the power in the pulse is within 0 7 dB of the measured CW level Other pulse specifications are the same as for the gt 10 MHz frequency range NONVOLATILE INSTRUMENT STATE MEMORY 50 instrument states are retained for typically 2 years even with ac line power disconnected REVERSE POWER PROTECTION Protection Level Up to 25 watts from a 509 source up to 25V de RF OUTPUT is ac coupled Protection is provided when the signal generator is turned off Trip Reset A flashing RF OFF annunciator indicates a tripped condition Pressing RF ON OFF button resets the signal generator IEEE 488 REMOTE CONTROL Extent of Remote Control All controls except the POWER REF INT EXT and CAL COMP switches are remotely programmable via the IEEE 488 Interface Std 488 2 1987 All status including the option com plement are available remotely Interface Functions Supported SH1 AH1 T5 TEO L3 LEO SR1
235. purious Signals offsets less than 10 kHz lt 56 dBc for RF output frequencies lt 1056 MHz lt 50 dBc for RF output frequencies gt 1056 MHz Residual FM NOTE 1 RESIDUAL FM 0 3 to 3 kHz 50 Hz to 15 kHz FREQUENCY BAND MHz 0 1 to 15 15 to 32 0 2 0 4 32 to 64 0 2 0 4 64 to 128 0 2 0 4 128 to 256 0 4 0 5 256 to 512 0 7 1 0 512 to 1056 1 5 2 0 1056 to 2112 NOTE 1 Allowable operating modes CW AM FM peak dev lt 1 5 of max in operating band OM same comment as FM Pulse INTRODUCTION AND SPECIFICATIONS Table 1 2 Specifications for Model 6082A cont SSB Phase Noise NOTE 1 CARRIER OFFSET FREQUENCY FREQUENCY 1 kHz 20 kHz 100 kHz BAND MHz dBc Hz dBc Hz dBc Hz 0 1 to 15 15 to 32 32 to 64 64 to 128 128 to 256 256 to 512 512 to 1056 1056 to 2112 Residual AM 50 Hz to 15 kHz Band lt 01 80 dBc AMPLITUDE MODULATION Depth Range 0 to 99 9 for RF output level lt 7 dBm AM Resolution 0 1 AM Display 3 digits AM Accuracy 2 4 of setting for rate 1 kHz and depth lt 90 AM Distortion Rate 1 kHz NOTE 2 lt 1 5 THD to 30 AM lt 3 THD to 70 AM lt 5 THD to 90 AM AM 3 dB Bandwidth NOTE 2 AC coupled AM 20 Hz to 50 kHz DC coupled AM dc to 50 kHz Incidental OM lt 0 20 radian at 1 kHz rate and 30 AM FREQUENCY MODULATION NOTE 3 FM Display Ranges 0 to 999 Hz Dev 1 Hz Resolution and Resolution 1 to 9 99 kHz Dev 1
236. put Blanking SPCL 780 Off Low noise external reference SPCL 950 Off Nonvolatile memory erase repeat count SPCL 828 12 Appendix B Special Function Table B 1 SPECIAL FUNCTION TABLE B 2 Appendix B Special Function Table SPECIAL FUNCTION DESCRIPTION Clear special functions Restore Instrument Preset State Initiate power on self tests Display self test results Display cal comp memory checksum status Display cal comp memory data origins Self tests with RF and pulse Display option loading status Display software revision level Display Set IEEE 488 address Display Set IEEE 488 address mode Display Set IEEE 488 language Display Enter service request mask Set user request SRQ Clear SRQ Disable relative frequency mode Enable relative frequency mode Disable relative amplitude mode Enable relative amplitude mode Enable modulation oscillator output Disable modulation oscillator output Enter modulation frequency with 0 1 Hz resolution Disable fixed range amplitude Enable fixed range amplitude Enable phase adjust mode Zero phase adjust indicator Disable low rate FM Enable low rate FM Disable high rate OM Enable high rate M Select normal range FM Select low distortion range FM Select fixed range FM Disable internal pulse modulation Enable internal pulse modulation Select sine oscillator waveform Se
237. put frequency 4A 1 Adjusting the phase of the RF carrier 4A 3 RF output frequency bands 4A 4 Setting RF output frequency 4A 1 Setting RF output frequency step size 4A 2 Using RF output frequency relative mode 4A 2 RFOUT remote command 5B 38 RFOUT remote command 5B 38 Right arrow key 3 9 RQS SRQ IEEE 488 5A 9 RST remote command 5B 38 SAV remote command 5B 38 Save recall register HP 8462 language 5D 19 SD remote command 5B 38 Secure mode 4D 7 SECURITY remote command 5B 38 SECURITY remote command 5B 38 Self test execute and display results 4F 4 Status codes E 1 Status displaying 4G 2 SEQ key 3 8 SEQ remote command 5B 39 Serial poll status byte STB Bit assignments 5A 7 STB remote command 5B 40 Service Centers G 1 Information 1 3 Service Request Enable register SRE 5A 9 Bit assignments 5A 7 Programming 5A 10 Service request line SRQ IEEE 488 5A 9 SHIELD switch 3 12 Software revision level display of 4F 4 Space characters extra 5A 3 SPCL annunciator 4F 4 SPCL key 3 7 SPCL remote command 5B 39 Special functions 4F 1 Codes 4F 2 Table B 1 Decal 1 2 Knob 4F 5 Miscellaneous 4F 4 Viewing enabled 4F 3 INDEX 5 Specifications For Model 6080A 1 5 For Model 6082A 1 12 SRE see Service Request Enable register SRE remote command 5B 37 SRE remote command 5B 37 SRQ IEEE 488 5A 9 Standard equipment 2 2 State transitions remote local 5A 7 Status also see status
238. rator 4C 26 When internal pulse modulation is enabled the internal modulation oscillator is configured as a variable width pulse generator You can also configure the internal modulation oscillator as a pulse generator independent of internal pulse mode by using the Special Function or remote command in the following syntax diagram When configured as a pulse generator the internal mod oscillator generates a free running pulse train Triggering of this pulse train is not possible Pulse periods in the range of 100 ms to 5 us are available by programming the Mod Frequency in the range from 10 Hz to 200 kHz If a pulse period less than the pulse width is specified the STATUS annunciator is flashed and a pulse width that is 0 1 us less than the pulse period is substituted The pulse period is given priority over the pulse width However ifa Mod Frequency is entered that would result in a pulse period less than the stored pulse width the pulse width will be programmed to 0 1 us less than the pulse period Modulation frequencies less than 10 Hz pulse periods greater than 100 ms can be entered however the STATUS annunciator is flashed and the pulse period is programmed to 100 ms The internal pulse generator mode is enabled with a Special Function command from the front panel or with the MOD_WAVE command in remote SYNTAX FRONT PANEL REMOTE Disable Internal Pulse Ls MOD_WAVE SINE Generator e Cs MOD_WAVE PULSE 4C 15 FRONT PANEL
239. rence Output 10 MHz gt 0 dBm for 50Q load available at the rear panel REF OUT connector PROVISION FOR EXTERNAL REFERENCE The rear panel REF IN connector accepts an external source of 10 MHz 10 ppm sine wave 0 2 to 2 0V rms for a 50Q load One alternate external reference frequency setting of 1 2 or 5 MHz is available at a time through Special Function 761 or a remote command The default alternate reference frequency is 5 MHz See the Service Manual for setting internal DIP switches for use with a 1 or 2 MHz external reference AMPLITUDE Range 19 to 140 dBm for RF output frequency lt 512 MHz 17 to 140 dBm for RF output frequency gt 512 MHz Resolution 0 1 dB 0 1 or 1 nV in volts Annunciators for dB dBm V mV uV dBf dBuV dBmV and EMF Display Resolution 3 1 2 digits Accuracy 0 to 50 C FREQUENCY AMPLITUDE IN dBm MHz 127 _ 0 01 to 0 1 ee m 0 1 to 0 4 k3 dB gt 0 4 to 512 k3 dB gt 512 to 1056 k3 dB gt 1 5 INTRODUCTION AND SPECIFICATIONS Table 1 1 Specifications for Model 6080A cont Source SWR lt 1 5 1 below 6 dBm lt 2 0 1 above 6 dBm Flatness 0 to 50 C 0 75 dB at 10 dBm for frequencies gt 0 1 MHz Intermodulation Distortion Amplitude of 4 dBm CW only SPACING FREQUENCY MHz 1 kHz 25 kHz 0 01 to 128 MHz 128 to 512 MHz 512 to 1056 MHz SPECTRAL PURITY CW ONLY Spurious Signals lt 100 dBc for offsets greater
240. rieves the FM M deviation step size Programs the output frequency step size Retrieves the output frequency step size Programs the modulation frequency step size Retrieves the modulation frequency step size Programs the modulation level step size Retrieves the modulation level step size Steps the active step field down by one step size Steps the AM depth up or down by one step size Steps the output amplitude up or down by one step size Selects the step field Retrieves the step field Steps the FM OM deviation up or down by one step size Steps the output frequency up or down by one step size Steps the modulation frequency up or down by one step size Steps the modulation level up or down by one step size Steps the active step field up by one step size Moves bright digit to specified decade in AM field Retrieves decade of AM bright digit position Moves bright digit to specified decade in amplitude field Retrieves decade of amplitude bright digit position Programs bright digit field Retrieves current bright digit field Selects AM bright digit field and edits AM Selects amplitude bright digit field and edits amplitude Selects FM OM bright digit field and edits FM OM Selects frequency bright digit field and edits frequency Selects modulation freq bright digit field and edits modulation freq Selects modulation level bright digit field and edits modulation level Moves bright digit to specified decade in FM OM field Retrieves decad
241. rnate compensation data are selected SYNTAX FRONT PANEL REMOTE Apply Standard Output J CJ e AMPL_CMPDAT STD Compensation Data Apply Alternate Output CJ G AMPL_CMPDAT ALT Compensation Data NOTE This compensation data is only applied to the Output Circuitry Section 4C Modulation INTRODUCTION 4C 1 The Signal Generator offers four modulation capabilities Amplitude modulation AM Frequency modulation FM Phase modulation M Pulse modulation 7 The MODULATION ON OFF keys enable and disable one or more types of modulation from internal and external sources Each modulation key is a toggle on off type Annunciators in the MODULATION display field indicate the enabled modulation types Various combinations of AM FM M and pulse modulation may be enabled in either internal or external or both modes Some restrictions exist for certain combinations FM and M are always mutually exclusive External ac and dc modes of each modulation form are mutually exclusive It is easier to understand by considering AM FM M and pulse modulation as three separate groups where FM and dM are mutually exclusive members of a single group While interactions and exclusions exist within each group there are no interactions between groups In other words no combination of AM on off modes ever interacts with FM M on off modes or pulse modulation on off modes The MODULATION display field is shared by amplitude modula
242. ry time the ISCR is read its contents are zeroed The following sample program reads the ISR ISCR and ISCE registers 10 THIS PROGRAM READS THE ISR ISCR AND ISCE REGISTERS 20 NOTE THAT THE ICSR COMMAND ALSO CLEARS THE ISCR CONTENTS 30 PRINT 2 ISR ASK THE ISR CONTENTS 40 INPUT 2 A RETRIEVE REGISTER CONTENTS FROM SIGNAL GENERATOR 50 PRINT 2 ISCR ASK FOR AND CLEAR THE ISCR CONTENTS 60 INPUT 2 B RETRIEVE REGISTER CONTENTS FROM SIGNAL GENERATOR 70 PRINT 2 ISCE ASK FOR THE ISCE CONTENTS 80 INPUT 2 C RETRIEVE REGISTER CONTENTS FROM SIGNAL GENERATOR 90 PRINT ISR A DISPLAY THE ISR 100 PRINT ISCR B DISPLAY THE ISCR 110 PRINT ISCE C DISPLAY THE ISCE 120 END ee e oue Man The status of the instrument can be read by converting the returned variables into binary For example if a register contains 4 its binary equivalent is 00000000 00000100 Therefore bit 3 CALCOMP is set 1 and the rest of the bits are reset 0 By setting the bits in the ISCE the associated bits in the ISCR can be enabled For example to cause an SRQ interrupt when an the RPP trips bit 3 RPP in the ISCE register must be 1 The ISCB bit must also be enabled in the SRE The following sample program loads a decimal 8 into the ISCE which sets bit 3 and resets the other bits 10 THIS PROGRAM LOADS 00000000 00001000 BINARY INTO THE ISCE 20 PRINT 2 ISCE 8 LOAD DECIMAL 8 INTO THE ISCE 30 PRINT 2
243. s 4B i 4B 2 SETTING RF OUTPUT AMPLITUDE 00 eee eee eee 4B 1 4B 3 CONVERTING RF OUTPUT AMPLITUDE UNITS 4B 2 4B 4 SELECTING ALTERNATE dB REFERENCE UNITS 4B 2 4B 5 USING UNTERMINATED OUTPUT EMF MODE 4B 3 4B 6 SETTING RF OUTPUT AMPLITUDE STEP SIZE 4B 4 4B 7 USING RF AMPLITUDE RELATIVE MODE 55 4B 4 4B 8 ENABLING AND DISABLING RF OUTPUT 0cseeee eee 4B 6 4B 9 RF OUTPUT AMPLITUDE BANDS 0 e cece eee eens 4B 6 4B 10 USING RF OUTPUT AMPLITUDE FIXED RANGE MODE 4B 7 4B 11 USING ALTERNATE OUTPUT COMPENSATION MODES 4B 8 4B 12 SELECTING ALTERNATE OUTPUT COMPENSATION DATA 4B 8 4C MODULATION 0 cece ccc eee een ence nena n ene nene 4C 1 4C 1 INTRODUCTION 0 ccc cece eee ee cen eee e eet e eee eee 4C 1 4C 2 INTERNAL MODULATION OSCILLATOR 000055 4C 4C 3 Setting Modulation Frequency and Step Size eee e eens 4C 2 4C 4 Setting Modulation Level and Step Size 0 cece eee es 4C 3 4C 5 Enabling and Disabling Modulation Output 06 4C 4 4C 6 Selecting the Internal Modulation Waveform 00005 4C 4 4C 7 Using the Extended Resolution Mede for Modulation Frequency 4C 5 4C 8 AMPLITUDE MODULATION AM cece ee eee eee ees 4C 5 4C 9 Setting AM Depth and AM Depth Step Size 02 0005
244. s Service Request Enable register Loads specified status into the status queue Retrieves a status code from the status queue Retrieves the status byte Retrieves the attenuator log Initiates AM calibration procedure Initiates FM calibration procedure Initiates level calibration procedure Initiates reference oscillator calibration procedure Returns attenuator compensation procedure break frequency Returns frequency where automatic compensation procedure failed Exits calibration compensation procedure Retrieves the RF output frequency during calibration compensation procedure Reports measured AM depth to calibration procedure Reports measured voltage to compensation procedure Reports measured FM deviation to calibration procedure Reports measured RF output frequency to calibration procedure Reports measured power to cal comp procedure Resumes attenuator compensation procedure Calculates corrections save new data in cal comp memory Returns target value of compensation procedure Clears alternate output compensation data Repairs compensation memory checksum errors Initiates attenuator compensation procedure with power meter Initiates attenuator compensation procedure Initiates automatic coarse loop compensation procedure Initiates output compensation procedure Initiates output compensation procedure with default Initiates subsynthesizer compensation procedure Initiates automatic sum loop compensation procedure Retrieves the elapse
245. s and data origins Repair cal comp memory checksum errors Transter MEC Prom Data Apply amplitude compensation Program alternate 24 dB attenuators 920 922 923 926 50 51 Amplitude fixed range Manual compensation procedures NOTES Feature not available for the Signal Generator rejected for special functions Feature new for the Signal Generator no equivalent code for the 6060 Special function rejected it is only available from the front panel Special function rejected use DA1 instead of SP61 AE1 and DAO instead of SP61 AEO anit REMOTE OPERATION COMPATIBILITY LANGUAGES Tabie 5D 2 6070 Compatibility Language Codes and Special Functions RETURNED IN 6070 MODE EQUIVALENT DESCRIPTION 6080 STATUS Status value returned on 6070 IU command 000001 000000 000000 000000 FM DAC at 0 000002 000000 000000 000000 FM out of range for RF frequency band 000004 000000 000000 000000 FM loop unlocked 000010 000000 000000 000000 ACFM deviation too high 000020 000000 000000 000000 000040 000000 000000 000000 000100 000000 000000 000000 000200 000000 000000 000000 000000 000001 000000 000000 000000 000002 000000 000000 000000 000004 000000 000000 000000 000020 000000 000000 000000 000000 000001 000000 000000 000000 000002 000000 000000 000000 000004 000000 000000 000000 000010 000000 000000 000000
246. s are sine wave triangle wave and square wave The oscillator may also be configured as a variable width pulse generator Only one of the waveforms or the internal pulse generator mode can be enabled at any given time The selected waveform may be applied to the internal AM internal FM or internal pulse circuitry Each modulation path AM FM pulse is controlled independently of the others This selection scheme allows any waveform to be applied to internal AM internal FM or internal pulse In addition multiple modulation paths e g internal AM and internal FM may be simultaneously enabled to use the selected waveform although the resulting output may be of little use The SPCL annunciator is lit when an alternate modulation waveform is selected The following Front Panel key sequences and Remote commands select the waveform of the modulation oscillator SYNTAX WAVEFORM FRONT PANEL REMOTE Sine Cs jC MOD_WAVE SINE Triangle e 7 GIO MOD_WAVE TRIANGLE Square sc 7 Cs J 2 MOD_WAVE SQUARE FRONT PANEL OPERATION MODULATION Using the Extended Resolution Mode for Modulation Frequency 4C 7 An extended resolution mode is available for entry of Mod Frequency This mode is enabled with a Special Function command and allows the Mod Frequency to be input from the front panel with 0 1 Hz resolution over its entire range This resolution is always available in remote using the MODF command Entering seo 4
247. s case 12 and the 12 indicates that there are twelve characters in the remainder of the DDT message in this case STEP_FREQ UP Retrieves the contents of the DDT Define Device Trigger buffer None lt non zero digit gt lt digits gt lt user data gt The non zero digit specifieds the number of characters that will follow in the lt digits gt field These characters are 0 through 9 ASCII 48 through 57 decimal The value of the number in the lt digits gt field defines the number of user data bytes that follow in the lt user data gt field The maximum response is 72 characters 212STEP_FREQ UP Selects the display status ON or OFF Display ON is rejected in secure mode DISPLAY Description Parameter Response EDIT_AM Description Parameter Example Restrictions EDIT_AMPL Description Parameter Example Restrictions EDIT_FM Description Parameter Restrictions EDIT_FREQ Description Parameter Example Restrictions EDIT_MODF Description Parameter Restrictions EDIT_MODL Description Parameter Restrictions REMOTE OPERATION REMOTE COMMAND TABLES Table 5B 3 Remote Commands cont Retrieves the display status None String ON or OFF Selects the AM bright digit field and edit AM by the specified number of counts Number of counts by which bright digit is edited AM_BRT 1 PCT EDIT_AM 18 Rejected during ma
248. self tests can be displayed with Special Function 03 See Appendix E for the status codes and their explanations For safety for example where an amplifier is attached to the Signal Generator self tests are run without energizing the RF output To run self tests that include energizing the RF output use Special Function 06 Display Loaded Options 4F 9 Special Function 08 causes the loaded instrument options to be displayed for approximately 5 seconds or until another key is pressed Display Instrument ID and Software Revision Level 4F 10 Special Function 09 causes the instrument ID and software revision level to be displayed for approximately 5 seconds or until another key is pressed FRONT PANEL OPERATION SPECIAL FUNCTIONS Blank Front Panel Display 4F 11 The front panel display can be blanked with Special Function 771 This Special Function blanks the display and disables the edit knob Special Function 770 restores the display and functionality of the knob Select Repeat Rate for Step Keys 4F 12 The repeat rate for the front panel step A and keys is selected with Special Functions 860 through 862 The default repeat rate for the step keys is medium corresponding to Special Function 860 Special Function 861 selects a fast repeat rate while Special Function 862 selects a slow repeat rate Configure Edit Knob and Step Keys 4F 13 The front panel edit knob can be disabled and the functional role of the step incre
249. single sweep although the center frequency may be stepped during manual sweep Sweep symmetry may be changed at any time so long as the resulting sweep range is valid for auto or manual sweep Sweep symmetry may not be changed while a single sweep is active A sweep in relative mode is possible by enabling relative frequency mode before entering a sweep However relative mode may not be enabled or disabled while a sweep is active FRONT PANEL OPERATION SWEEP Setting Frequency Sweep Width 4E 7 The frequency sweep width can be selected for entry by first pressing the FREQ key to select the FREQUENCY display field then pressing the key Upon programming a new sweep width the value is held momentarily in the FREQUENCY display field A negative sweep width can be entered this causes the Signal Generator to sweep in the reverse direction that is starting at the high frequency and proceeding towards the low frequency FREQUENCY SWEEP WIDTH RANGE RESOLUTION 6080A 1Hzto 1056 MHz 1Hz 6082A 1 Hzto 2112 MHz 1Hz SYNTAX numeric data EXAMPLE Set Frequency Sweep Width to 230 MHz FRONT PANEL BIBI REMOTE FREQ_SWIDTH 230 MHZ Setting Frequency Sweep Increment 4E 8 The frequency sweep increment can be selected for entry by first pressing the key to select the FREQUENCY display field then pressing the key Upon programming a new sweep increment the new value is held momentarily in the FREQUENCY display field FREQUENC
250. t Assignments for ESR and ESE REMOTE OPERATION REMOTE PROGRAMMING Error 79 IEEE 488 2 INTERRUPTED Query Interrupted query occurs when the IEEE 488 controller sends a new character to the 6080A and response data is present in the output queue or the 6080A is generating response data by executing a query After sending a query to the 6080A the controller should always be sure to read all of the response data which the generator generates Error 80 IEEE 488 2 I O DEADLOCK This type of query error occurs when the 6080A has been asked to buffer more data than it has room to store in the output buffer The 6080A logs this error when the 6080A detects the following three conditions simultaneously 1 The output buffer is full thus blocking completion the query which is generating response data 2 The input buffer is full 3 The controller is attempting to send a new character to the generator I these three conditions occur at the same time the IEEE 488 bus will be blocked deadlocked since the controller cannot clear the condition unless it aborts sending the character and begins reading the output buffer Error 84 IEEE 488 2 QUERY AFTER INDEFINITE RESPONSE This error occurs when a query which generates a response of type lt arbitrary response data gt is followed by another query without first reading the response Operation complete All commands previous to reception of a OPC command have been executed and the interfa
251. t of a 1 5V pk external pulse modulation signal FUNCTION These keys are used to select a function parameter to be entered or KEYS edited When pressed the bright digit appears in the corresponding display field of the selected function SPCL Enables the Special Function mode Special functions are enabled and disabled by using the DATA keys to enter a two or three digit numeric code Refer to Section 4F Special Functions for a detailed description and a list of the special functions Selects the RF output frequency parameter to be programmed Selects the RF output amplitude parameter to be programmed Selects the amplitude modulation depth parameter to be programmed Selects the frequency or phase modulation deviation parameter to be programmed Selects the modulation frequency parameter to be programmed Selects the modulation level parameter to be programmed FUNCTION MODIFIER KEYS ster After selecting one of the six functions pressing this key displays the step a size for the parameter and allows a new step size to be entered The STEP A or Z increase or decrease keys are enabled for the selected parameter After the frequency or amplitude function has been selected pressing this key displays the sweep width for the function and allows a new sweep width to be entered The SWEEP mode keys are enabled for the selected function SWEEP WIDTH
252. ted Also included are commands for features that are new for the 6080A 82A A few commands that are not commonly used in these instruments have been eliminated from the compatibility languages and are listed in Table SD 3A In the 6060 and 6070 instruments numeric data can be sent in hexadecimal as well as the default decimal This feature is not included in the 6060 and 6070 compatibility languages oe REMOTE OPERATION COMPATIBILITY LANGUAGES Table 5D 1 6060 Compatibility Language Codes and Special Functions RETURNED IN 6060 MODE EQUIVALENT 6080 STATUS Status value returned on 6060 IU command 000001 000000 000000 FM DAC at 0 000002 000000 000000 FM out of range for RF frequency band 000004 000000 000000 Excess FM Deviation 000010 000000 000000 FM DAC at full scale 000020 000000 000000 AM depth too high 000200 000000 000000 Multiple compensation memory errors 000000 000010 000000 Reference unlocked 000000 000000 000001 Level DAC below calibrated range 000000 000000 000002 Peak AM amplitude too high 000000 000000 000004 ALC loop unleveled 000000 000000 000010 Level DAC at 0 000000 000000 000020 Level DAC at full scale 000000 000000 000040 RPP tripped 000000 000000 000100 Amplitude too low 000000 000000 000200 Level correction disabled 000000 000000 000400 RF output off 001000 000000 000000 All other codes new for 6082A DESCRIPTION
253. the Signal Generator do a self test then send the result to the controller A query always ends with a question mark A command never ends with a question mark Table 5B 3 does not separate commands and queries they are all called commands and are presented together in one alphabetical list All query responses are generated instantly on receipt of the query In other words queries generate their output when the Signal Generator executes the query rather than when the controller attempts to read the response The Signal Generator simply generates the requested message and places it in the output queue When the controller addresses the Signal Generator as a talker the contents of the output queue are transmitted to the controller Some messages have both query and command forms e g PUD and PUD In such cases the command generally sets the value of a parameter and the query generally returns the most recent value of the parameter Some messages are queries only e g IDN Some messages are commands only e g RST Functional Elements of Commands 5A 36 Table 5A 3 lists the functional elements of commands described by the IEEE 488 2 standard that are used by the Signal Generator This table is for those who have acopy of the standard and want to use it to pursue additional information The standard provides full definitions and syntax diagrams for each element 5A 17 REMOTE OPERATION REMOTE PROGRAMMING 5A 18 Table 5A
254. the boosted output level using Relative Amplitude FRONT PANEL Press the following keys to program the Signal Generator to 10 dBm The output of the amplifier is 0 0 dBm Ge GIG Co le Press the following keys to select Relative Amplitude The Signal Generator display now reflects the amplifier output 0 0 dBm mo REMOTE AMPL 10 0 DBM AMPL_REL ON Table 4B 1 Relative Amplitude Unit Combinations REFERENCE AMPLITUDE UNITS dB dB dB dB dB voltage voltage DISPLAYED AMPLITUDE OUTPUT AMPLITUDE UNITS ame PRESSED dBm dBm displayed dB reference dBmV dBmV displayed dB reference dBuv dBuV displayed dB reference dBf dBf displayed dB reference voltage voltage displayed x dB reference dB voltage referenced x dB displayed voltage voltage displayed V reference Any dB based units i e dBm dBuV dBmV dBf Units conversion of the displayed amplitude is not allowed when the reference amplitude has Voltage units since an absolute quantity Volts cannot be converted to a ratio dB 4B 5 FRONT PANEL OPERATION RF OUTPUT AMPLITUDE ENABLING AND DISABLING RF OUTPUT 4B 8 You can enable and disable the RF output signal by pressing the RF OUTPUT key or with the RFOUT command in remote Turning the RF output on resets the Reverse Power Protection RPP circuitry if it has been tripped Pressing the RF OUTPUT key alternately turns the output off and on When the
255. tion Selects the secure mode status Retrieves the secure mode status Selects a special function by number Triggers device Waits until all pending remote operations are complete INSTRUMENT STATE MEMORY ERASE_RPT ERASE_RPT MEM_DIVIDER MEM_DIVIDER MEM_ERASE MEM_LOCK MEM_LOCK MEM_RESET RCL SAV SEQ Sets nonvolatile memory erase repeat count Retrieves nonvolatile memory erase repeat count Programs memory divider locations Retrieves memory divider locations Erases nonvolatile memory Write protects instrument state memory Retrieves the state of memory lock protection Resets all memory locations to instrument default Recalls a memory location Saves to a memory location Recalls the next or previous memory location AM_STEP AM_STEP AMPL_STEP AMPL_STEP FM_STEP FM_STEP FREQ_STEP FREQ_STEP MODF_STEP MODF_STEP MODL_STEP MODL_STEP SD STEP_AM STEP_AMPL STEP_FIELD STEP_FIELD STEP_FM STEP_FREQ STEP_MODF STEP_MODL SU AM_BRT AM_BRT AMPL_BRT AMPL_BRT BRT_FIELD BRT_FIELD EDIT_AM EDIT_AMPL EDIT_FM EDIT_FREQ EDIT_MODF EDIT_MODL FM_BRT FM_BRT FREQ_BRT FREQ_BRT MODF_BRT MODF_BRT MODL_BRT MODL_BRT REMOTE OPERATION REMOTE COMMAND TABLES Tabie 5B 1 Remote Command Summary cont Programs the AM depth step size Retrieves the AM depth step size Programs the RF output amplitude step size Retrieves the RF output amplitude step size Programs the FM M deviation step size Ret
256. tion 740 741 INT_PULSE Modulation oscillator waveform 750 752 758 MOD_WAVE Enter pulse width 759 PULSE_WIDTH SWEEP Sweep dwell time 890 899 SWEEP_DWELL Sweep symmetry 880 881 SWEEP_SYM Initiate single sweep 882 SWEEP SINGLE INSTRUMENT STATE MEMORY Reset memory locations 801 MEM_RESET Display Set memory sequence dividers 802 MEM_DIVIDER Write protect memory locations 810 811 MEM_LOCK Nonvolatile memory erase repeat count 828 ERASE_RPT Erase nonvolatile memory 829 MEM_ERASE REMOTE Display Set IEEE 488 address 10 n a Display Set IEEE 488 address mode 11 n a Display Set IEEE 488 language 12 GAL Display Enter service request mask 13 SRE Set user request SRQ 14 n a Clear SRQ 15 n a 4F 2 FRONT PANEL OPERATION SPECIAL FUNCTIONS Table 4F 1 Special Function Codes cont REMOTE LIGHTS SPCL SPECIAL FUNCTION DESCRIPTION COMMAND ANNUNCIATOR WHEN ENABLED MISCELLANEOUS Clear all special functions 00 SPCL 00 Restore Instrument Preset State 01 SPCL 01 Initiate power on self tests 02 TST Display self test results 03 STATUS Display option loading status 08 OPT Display software revision level 09 IDN Disable display 770 771 DISPLAY Frequency blanking 780 781 FREQ_BLANK Enable secure mode 820 821 SECURITY Step key repeat rate 860 862 KEY_RATE Knob and step key operation 870 873 KNOB_STEP SERVICE Amplitude compensation 920 922 AMPL_COMP Output compensation data 930 931 AMPL_CMPDAT See Service Manual for Others ENABLING S
257. tion depth frequency phase modulation deviation modulation frequency and modulation level Since there is only one modulation display the displayed modulation parameter is determined by the last modulation FUNCTION key pressed INTERNAL MODULATION OSCILLATOR 4C 2 An internal modulation oscillator digitally synthesizes one of three waveforms sine square triangular at a specified modulation frequency The internal modulation oscillator uses DDS Direct Digital Synthesis to provide excellent signal purity It can also be configured as a pulse generator where the pulse width and repetition rate are programmable The synthesized modulation waveform is available at the front panel connector labeled MOD OUTPUT AC 1 FRONT PANEL OPERATION MODULATION Setting Modulation Frequency and Step Size 4C 3 The modulation frequency Mod Frequency is displayed in the Signal Generator front panel MODULATION display field with three digits of resolution The Mod Frequency is displayed with kHz or Hz units with the MOD FREQ annunciator on Mod Frequency and the Mod Frequency Step Size are controlled using the FUNCTION DATA UNIT entry sequence Pressing the function key causes the MODULATION display field to display the Mod Frequency moves the bright digit to the MODULATION display field and places the Signal Generator in the Mod Frequency entry mode Entry or modification of the Mod Frequency does not change the Signal Generator s RF output u
258. to which the Signal Generator must be connected The line voltage is selected by orienting the selector card appropriately A 2 ampere fuse is required for 115V operation and a 1 ampere fuse is required for 230V operation REF IN A BNC connector that accepts a 1 MHz 2 MHz 5 MHz or 10 MHz 0 2 to CONNECTOR 2V rms sine or square wave signal into a nominal 50Q termination This becomes the Signal Generator reference signal when the REF INT EXT switch is set to EXT 10 MHz OUT A BNC connector that presents a 10 MHz reference signal greater than 0 CONNECTOR dBm for a 50Q load to external devices REF INT EXT This switch selects the Signal Generator frequency reference When set SWITCH to INT the Signal Generator operates on the 10 MHz internal reference The internal 10 MHz reference signal is available at the 10 MHz OUT connector When set to EXT the Signal Generator reference is a 1 2 5 or 10 MHz signal applied to the external REF IN connector CALCOMP When set to 1 enables the Signal Generator to run closed case calibra SWITCH tion and compensation procedures When set to 0 it write protects calibration and compensation data memory Shield This switch connects the shield of the IEEE 488 connector and cable to the instrument ground SWITCH G IEEE 488 Allows remote operation of the Signal Generator via the IEEE 488 bus CONNECTOR AUX A 9 pin D Subminiature connect
259. top Amplitude Cursor Left Right ABIS lt value gt Stop Amplitude Increment Set ABUP ABDN Stop Amplitude Increment Up Down SP122 Special Function 122 Linear Amplitude Sweep Table 5D 11 FM OM Commands That Are Not Emulated SPECIAL FUNCTION DESCRIPTION FM Pre Emphasis On Negative OM Polarity Negative FM Polarity DC FM Correction Off DC FM Update Mode On AC Coupled DC FM On Internal Modulation Oscillator 5D 21 The 6080A 82A Modulation Oscillator is digitally synthesized and requires no calibration Therefore the following Special Functions are not emulated but generate no execution errors SP113 Modulation Frequency Correction Off SP213 Modulation Frequency Correction On SP248 Calibrate Modulation Frequency Bands NOTE The 6080A 82A front panel MOD OUTPUT signal is in phase with the internal modulation signal This is different from the 8642 where the two signals are 180 degrees out of phase REMOTE OPERATION COMPATIBILITY LANGUAGE instrument Preset Partial Preset 5D 22 The 6080A 82A emulates the HP8642 Instrument Preset and Partial Preset states with the exception of the following parameters Start Stop Frequency Increment Start Stop Frequency Knob Increment Frequency Reference Start Amplitude Stop Amplitude Start Stop Amplitude Increment Start Stop Amplitude Knob Increment Amplitude Reference Amplitude Sweep Mode Sweep Time Increment Sweep Time Knob Increment Knob Control
260. tory generated set of data which characterizes the output circuitry is applied and a factory generated set of data which characterizes the attenuators is applied It is possible to configure the Signal Generator to apply the output circuitry compensation data only no attenuator compensation to the output or to apply no compensation data to the output Selecting a compensation mode is done using a Special Function command from the front panel or with the AMPL_COMP command in remote The SPCL annunciator is lit when an alternate compensation mode is selected SYNTAX FRONT PANEL REMOTE Apply All Compensation Data CII AMPL_COMP ALL Apply No Compensation Data Co 2304 AMPL_COMP NONE Apply Output Compensation Only CI 2 2 AMPL_comp OUTPUT NOTE Also disables Level Calibration SELECTING ALTERNATE OUTPUT COMPENSATION DATA 4B 12 The Signal Generator has provision for user definable output output circuitry compensation data It is possible to characterize the Signal Generator when the RF output is connected through a lengthy or lossy path and store this data The method for generating this data this is described under Compensating Level Flatness Errors in an External System in Section 7 of the Service Manual Once an alternate set has been loaded the alternate compensation data can be selected for use using a Special Function command from the front panel or with the AMPL_CMPDAT command in remote The SPCL annunciator is lit when alte
261. tude parameters and status codes Except when EMF units FIELD are selected displayed amplitudes are referenced to a 502 load Indicates that the Step Size Entry and the Step Increment and Decrement keys affect the RF output amplitude Indicates that the displayed amplitude is relative to a reference amplitude Indicates that the SWEEP ON OFF keys apply to amplitude sweep Table 3 1 Front Panel Features cont Indicates that the displayed amplitude is in decibels relative to one femtowatt Indicates that the displayed amplitude is in decibels relative to a reference amplitude or is a step size value a sweep increment value or a sweep width value Indicates that the displayed amplitude is in decibels relative to one milliwatt Indicates that the displayed amplitude is in volts microvolts or millivolts Indicates that the displayed amplitude is in decibels relative to one millivolt Indicates that the displayed amplitude is in decibels relative to one microvolt Indicates that the displayed amplitude is in EMF units delivered into an open circuit or unterminated output Toggled by Special Function 851 850 STATUS The status display field is composed of 17 annunciators and a yellow DISPLAY LED all of which denote the status of the Signal Generator ANNUNCIATORS COMP Indicates that a compensation procedure is in progress Flashes when the rear panel CAL COMP sw
262. ueue One use for OPC is to include it in a program so that it generates an SRQ Service Request Then an SRQ handler written into the program can detect the operation complete condition and respond appropriately The OPC command is similar to OPC except the program must read the ESR to detect the completion of all operations The following sample program shows how OPC can be used 10 REMOTE 20 PRINT 2 FREQ 100MHZ OPC SIGNAL GENERATOR ADDRESS IS 2 40 INPUT 2 A READ THE ESR BYTE 50 IF A AND 1 0 GOTO 30 TRY AGAIN IF NO OPC 60 PRINT OUTPUT SETTLED 70 END t 30 PRINT 2 ESR PUT THE ESR BYTE IN BUFFER The WAI command causes the Signal Generator to wait until any prior commands have been completed before continuing on to the next command and takes no other action Using WAI is a convenient way to halt controller program execution until the command or commands preceding it have completed The following sample program shows how WAI can be used 10 REMOTE 20 PRINT 2 FREQ 100MHZ WAI SIGNAL GENERATOR ADDRESS IS 2 30 PRINT 2 FREQ READ THE OUTPUT VALUE 40 INPUT 2 A A CONTAINS THE OUTPUT VALUE 50 PRINT OUTPUT SETTLED 60 PRINT OUTPUT IS A 70 END 5A 22 REMOTE OPERATION REMOTE PROGRAMMING tim Using the DDT and TRG Commands 5A 41 The DDT command is used to define the device trigger buffer Once it is loaded the stored commands may be executed with the
263. unit Press a UNITS key This gives the numeric data its absolute value and causes the microprocessor to verify that the entered value is within allowable limits and to program the Signal Generator to the new state The bright digit is redisplayed A function remains selected until you press anew FUNCTION key or send a function remote command Parameter data for a selected function must be followed by a unit value and must be within the allowable range for the function If the data is not within the allowable range the display field flashes and the REJ ENTRY status annunciator flashes A rejected entry does not affect the output of the Signal Generator The output of the Signal Generator remains at its previous setting until a new value is accepted You can terminate entry of a function parameter at any time by pressing cuRict or by selecting another function Parameter entry commands are provided for remote control of the six functions Refer to Section 5 Remote Operation for more information Editing the Bright Digit 4 5 To adjust the value of a parameter by editing the bright digit proceed as follows 1 Select a display field Select one of the six functions using the FUNCTION keys A bright digit appears in the selected display field 2 Position the bright digit Use the lt or LD EDIT keys to position the bright digit on the desired decade of resolution 3 Adjust the value of the bright digit FRO
264. us key displays a numeric code in the MODULATION display field indicating the specific reason why the entry was rejected in remote the ERROR command is used to query errors When the front panel STATUS annunciator is lit or flashing pressing the key displays one or more numeric codes detailing the set of overrange or uncal conditions in remote the STATUS command is used to query status Up to four codes can be displayed at a time If more than four status codes are active repeatedly pressing the key will scroll through the active codes Only three codes at a time are displayed when the active list is scrolled through Three dots appear in the fourth rightmost field to indicate that there are additional codes DISPLAYING SELF TEST STATUS AND CALIBRATION COMPENSATION DATA 4G 3 Self Test Calibration Compensation Data Checksum and Origin status codes can also be displayed Each set of status codes are displayed with a Special Function and scrolled using the key like the overrange uncal status codes in remote the STATUS command is used to load the status queue with the requested information and the STATUS command is used to query the status The Calibration Compensa tion Data Checksum and Origin Status codes are described in the Signal Generator Service Manual SYNTAX FRONT PANEL REMOTE Display Load STATUS UNCAL Overrange Uncal Status STATUS Display Load Self Test Status Ce C3 STATUS SELFTEST STATUS Display Load CalC
265. usesthe MODULATION display field to display the current FM M deviation moves the bright digit to the MODULATION display field and places the Signal Generator in the FM M deviation entry mode Entry or modification of the FM M deviation value does not change the Signal Generator output unless FM M is enabled The FM M deviation step size is selected for entry by pressing the key after selecting the FM M function Although the FM M deviation and FM M deviation step size may have different units Step Increment and Decrement operations are rejected unless the units are consistent 4C 7 FRONT PANEL OPERATION MODULATION FM oM DEVIATION RANGE RESOLUTION FM 0 to 4 00 MHz 3 digits 6089A oM O to 400 rad 3 digits RANGE RESOLUTION FM 0 to 8 00 MHz 3 digits 6082A OM 0 to 800 rad 3 digits FM oM DEVIATION STEP SIZE RANGE RESOLUTION 60804 FM 0 to 4 00 MHz 3 digits oM 0 to 400 rad 3 digits RANGE RESOLUTION FM 0 to 8 00 MHz 3 digits 6082A oM 0 to 800 rad 3 digits SYNTAX Set FM Deviation numeric data Hzlyv Set M Deviation numeric data Select FM deviation step size numeric data Lew Select M deviation step size numeric data EXAMPLE 1 Set FM deviation to 50 kHz FRONT PANEL mm 5 0_ meim REMOTE FM50KHZ EXAMPLE 2 Set FM deviation step size to 500 Hz FRONT PANEL ww s C5 C0 0 Cw REMOTE FM_STEP 500 HZ FRONT PANEL OPERATION The max
266. ver if you desire you can substitute an external source for the internal reference To use an external reference set the rear panel REF INT EXT switch to EXT and connect an external source of 10 MHz 10 ppm sine wave 0 2 to 2 0V rms to the rear panel REF IN connector You can also use an external reference of 1 2 or 5 MHz One alternate external reference frequency setting is available at a time through Special Function 761 Special Function 760 resets the Signal Generator for a 10 MHz external reference The default alternate reference frequency is 5 MHz See Selecting an Alternate Reference Frequency in the Service Manual for how to set internal DIP switches for a 1 or 2 MHz external reference In remote use the EXTREF_FREQ command The selected external reference frequency is in effect whenever the rear panel REF INT EXT switch is set to EXT 4A 3 FRONT PANEL OPERATION RF OUTPUT FREQUENCY SYNTAX FRONT PANEL Ge 0 Select Standard 10MHz External Reference Frequency Emm Select Alternate External Reference Frequency RF OUTPUT FREQUENCY BANDS REMOTE EXTREF_FREQ STD EXTREF_FREQ ALT 4A 7 All RF output frequencies are synthesized from a fundamental frequency imthe range of 480 to 1056 MHz This fundamental frequency is divided heterodyned or doubled to produce the programmed output frequency The frequency bands of the Signal Generator are shown in Table 4A 1 Table 4A 1 Signal Generat
267. weep 5D 14 The 6080A 82A emulates HP8642 Frequency Sweep capability with the exception of commands listed in Table 5D 9 Table 5D 9 Frequency Sweep Commands That Are Not Emulated DESCRIPTION Start Frequency Increment Set Start Frequency Increment Up Down FAIS lt value gt FAUP FADN FBIS lt value gt FBUP FBDN Stop Frequency Increment Set Stop Frequency Increment Up Down STIS lt value gt STUP STDN Sweep Time Increment Set Sweep Time Increment Up Down SP121 SP123 Special Function 121 Sweep Up and Down Special Function 123 Phase Continuous Sweep rte nnnnaemanrear teat ane A A Ret A RS tA eT pnt resem rere hp hereto orp oe REMOTE OPERATION COMPATIBILITY LANGUAGE RF Output Amplitude 5D 15 The HP8642 Amplitude Programming capability is fully emulated with the exception of the following the APUP and APDN commands are not allowed unless the Amplitude Increment and the displayed Amplitude are in consistent units i e Volt unit increment and Volt unit display or dB unit increment and dB unit display The 6080A 82A output ALC loop configuration provides isolation from outside intermodulation Therefore the following Special Functions are not emulated but generate no execution errors e SP4 ALC Off e SP204 ALC On EMF Units 5D 16 The following HP8642 Amplitude EMF units commands are not emulated EMOF Turn Off EMF Mode EMON Turn
268. weep is selected It is generically called the center frequency F The frequency sweep width Fw is the total width of the sweep and may be either a positive or a negative quantity The frequency sweep increment Fi is the increment size and must be a positive quantity The sweep increment may be larger than the absolute value of the sweep width Sweep symmetry is selected by Special Function as described in the under the heading Digital Sweep Symmetry The following equations show the relationship of these parameters NOTE The progression of the sweep is always from F1 to F2 Fw can be negative Symmetric sweep ASYM annunciator is off FI start frequency Fe Fw 2 F2 end frequency Fe Fw 2 Asymmetric sweep ASYM annunciator is lit F1 start frequency Fe F2 end frequency Fc Fw Some sweep parameters may be changed while sweep is active Any parameter change that would result in an invalid sweep condition is rejected and the sweep continues with the existing sweep parameters If an attempt is made to start a sweep with sucha combination of parameters the sweep mode selection is rejected During auto sweep both sweep width and sweep increment can be inspected and modified and the center frequency can be modified edited or stepped If the entry is valid the new sweep range or increment takes effect immediately for the sweep These parameters cannot be displayed or changed during manual or
269. xed range FM None String NORMAL or LOWDISTORT or FIXED REMOTE OPERATION REMOTE COMMAND TABLES 5B 24 FM_STEP Description Parameter Example Restrictions FM_STEP Description Parameter Responses FM_UNITS Description Parameter Restrictions FREQ Description Parameter Example Restrictions FREQ Description Parameter Responses Example FREQ_ABS Description Parameter Responses Table 5B 3 Remote Commands cont Programs the FM OM deviation step size in Hz or radians The default units are HZ FM M deviation step size with optional frequency or radians units FM_STEP 13 26 KHZ Rejected during manual or single sweep Retrieves the FM M deviation step size None 1 Float FM deviation step size 2 String HZ or RAD Converts the FM M display to specified units HZ or RAD Rejected during manual or single sweep Programs the displayed RF frequency in Hz The default units are HZ If FREQ_REL is OFF this is the RF output frequency Refer to Section 4A RF Frequency for more details If If Auto Frequency Sweep is active programs the center Frequency Refer to Section 4E Sweep for more information Frequency with frequency units FREQ 183 277281 MHZ Rejected during manual or single sweep Retrieves the displayed RF frequency If FREQ_REL is OFF this is the RF output frequency lf Frequency Sweep is active returns t
270. z for rates of 50 Hz to 50 kHz FM 3 dB Bandwidth COUPLING DEVIATION INTERNAL AC EXTERNAL AC DC 20 Hz to 175 kHz 20 Hz to 100 kHz 0 to 25 Maximum 25 to 100 Maximum 20 Hz dc to 175 kHz 20 Hz dc to 100 kHz Incidental AM lt 1 depth for peak deviation lt 100 kHz at 1 kHz rate and carrier frequency gt 0 5 MHz DC Coupled FM Center Frequency Error at 1 GHz after dcFM internal cal and without any FM range changes lt 1 of dev 500 Hz Low Rate External AC Coupled FM Special Function 711 MAX DEV IN kHz AT 10 Hz RATE SINE WAVE FREQUENCY BAND MHz SQUARE WAVE 0 01 to 15 15 to 32 32 to 64 64 to 128 128 to 256 256 to 512 512 to 1056 1056 to 2112 INTRODUCTION AND SPECIFICATIONS Table 1 2 Specifications for Model 6082A cont Droop lt 30 on a 5 Hz square wave 3 dB Bandwidth 0 5 Hz to 100 kHz typical Maximum DC Input 10 mV Incidental AM lt 1 AM at 1 kHz rate and lt 10 kHz deviation PHASE MODULATION NOTE 4 Display Ranges 0 to 999 radians 1 to 9 99 radians 10 to 99 9 radians 100 to 800 radians Display Resolution 3 digits Maximum Deviation FREQUENCY BAND MHz MAXIMUM DEVIATION RADIANS 0 1 to 15 15 to 32 32 to 64 64 to 128 128 to 256 256 to 512 512 to 1056 1056 to 2112 High Rate Phase Modulation Maximum Deviation Speci

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