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Содержание 6062A

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Страница 2: ...ervice 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 On receipt of the shipping instructions forward the instrument transportation prepaid Repairs will be made at the Service Facility and the instrument returned transportation prepaid SHIPPING ...

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Страница 5: ...on 2 Installation and Operation gives instructions on inspecting the new Generator and explains what to do if the instrument arrives with shipping damage Reshipment information is also included 1 3 SAFETY This instruction manual contains information warnings and cautions that should be followed to ensure safe operation and to maintain the Generator in a safe condition The Generator is designed pri...

Страница 6: ...ontroller prompted software compensation Masler slave for frequency amplitude and modulation functions IEEE 488 Interface controlled Fluorescent display 5 4 inches high rack mountable 1 6 Controller Functions The Generator s microprocessor controls all operator interface functions performs back ground operations such as status checks and updates strobes the front panel displays Whether the operato...

Страница 7: ...convenient for tests involving mixers and amplitude tracking is useful for two tone intermodulation testing The specified frequency range is 0 10 to 2100 MHz The frequency is synthesized from a 10 MHz reference and provides an output resolution of 10 Hz from 0 10 to 1050 MHz and 20 Hz from 1050 to 2100 MHz The relative frequency mode allows the operator to program the frequency in relation to a ce...

Страница 8: ...n 651 Low Rate FM External only Option 830 Rear Panel RF Output MOD Input and Pulse MOD Input Section 6 provides more detailed information on the options The following accessories are included with each Generator QUANTITY Operator Information Card Getting Started Manual Instruction Manual Line Power Cord BNC Dust Cap 797928 1 794859 1 794842 I 284174 I 478982 2 The following accessories are availa...

Страница 9: ...1 to 1050 MHz 20 Hz from 1050 to 2100 Itiz ACCURACY Same as reference See REFERENCE REFERENCE Internal The unit operates on an internal free air 10 MHz crystal oscillator with an ageing rate of t0 5 ppm month and 5 ppm for 25 C 25 C Internal reference signal 10 Miz available at rear connector level 0 dBm terminated in 50 ohms REFERENCE External Accepts 1 2 2 5 5 or 10 MHz signal Level of 0 3 to 4 ...

Страница 10: ...ICS 30 dBc for levels 13 dBm and frequencies 1 MHz 25 dBc elsewhere SUBHARMONICS 50 dBc for output frequencies from 1050 to 2100 mz RESIDUAL FM rms in 0 3 to 3 kHz band 12 Hz for 0 1 to 244 99999 MHz 6 Hz for 245 to 511 99999 l z 12 Hz for 512 to 1049 99999 MHz 24 Hz for 1050 to 2100 MHz RESIDUAL FM rms in 0 05 to 15 kHz band 18 Hz for 0 1 to 244 99999 Miz 9 Hz for 245 to 511 99999 MHz 18 Hz for 5...

Страница 11: ... internal rates 30 or less AM and frequencies from 0 1 to 1049 99999 MHz 0 6 fm for internal rates 30 or less AM and frequencies from 1050 to 2100 mz FREQUENCY MODULATION 3 Digit Display DEVIATION RANGES MAXIMUM DEVIATION Mod Rate fm 2 kHz fm E kHz 0 to 999 Hz 1 to 9 99 kHz 10 to 99 9 kHz and 100 to 400 kHz Max Dev RF Frequency 400 kHz 200 kHz 100 kHz 200 kHz 1050 to 2100 Mhz 512 to 1049 99999 MHz...

Страница 12: ... 1 THD for 1 kHz rate Does not include effects of Residual FM 20 Hz to 10 kHz Note valid for RF Frequency Mod Frequency 150 kHz 1 AM at 1 kHz rate PULSE MODULATION RF Frequencies from 10 to 2100 MHz ON OFF RATIO 80 dB minimum RISE FALL TIMES 15 nsec LEVEL ERROR for pulse widths 50 nsec power in the pulse within 0 5 dB of measured CW level DUTY CYCLE ext mod 0 100 REP RATE ext mod DC 16 MHz INTERNA...

Страница 13: ...nstrument is off IEEE 488 INTERFACE FUNCTIONS SH1 AH1 T5 TEO L3 LEO SR1 RLl PPO DC1 0T1 CO and El MODULATION SOURCE INTERNAL 0 4 or 1 kHz 3 for 20 to 30 C add 0 1 C outside this range EXTERNAL 5V max IV peak provides indicated modulation index Nominal input impedance is 600 ohms TODES Any combination of AM and FM or 0M internal or external may be used If external AM and FM or 0M are enabled the mo...

Страница 14: ...h Height Depth 43 cm 13 3 cm 50 8 cm 17 in 5 25 in 20 in POWER a a B 100 120 220 240V ac 10 47 to 63 HZ 180 VA 15 VA with Option 130 installed and the Generator turned off standby WEIGHT 15 7 kg 35 lbs OPTION 130 HIGH STABILITY REFERENCE AGING RATE 5 x 10 10 day after 21 days continuous operation TEMPERATURE STABILITY 2 x 10 10 C Oven remains powered in standby OPTION 132 MEDIUM STABILITY REFERENC...

Страница 15: ...o 2100 mz RESIDUAL FM typical Freq Range 3 0 1 244 99999 MHz 8 245 511 99999 MHz 4 512 1049 99999 MHz 8 1050 2100 mz 16 3 kHz 05 15 kHz CCIT Hz 12 Hz 7 Hz Hz 6 Hz 3 5 Hz Hz 12 Hz 7 Hz Hz 24 Hz 14 Hz EXTERNAL MODULATION IEEE FREQUENCY DRIFT PULSE MODULATION Annunciators indicate when a IV peak signal is applied 2 over a 0 02 to 100 kHz band All controls except the power switch and the internal exte...

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Страница 17: ... pad the shipping container Loose fill allows the Generator to settle to one corner of the shipping container which could result in the Generator being damaged during shipment 2 3 SETTING UP THE GENERATOR The following paragraphs describe how to set up the Generator for operation This information includes line power requirements line voltage selection procedures fuse replacement procedures and rac...

Страница 18: ...mounting the Generator on an equipment rack Instructions for installing the Generator with the Rack Mount Kit are provided in the kit The outside dimensions of the Generator are shown in Figure 2 2 The Rack Mount Kit is composed of the following parts 5 4 inch Rack Adapter P N M05 205 600 24 inch Rack Slides P N MOO 280 610 2 8 GENERAL OPERATING INFORMATION The following paragraphs contain general...

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Страница 20: ...ol operations that have similar entry methods are also described under Local and Remote Control Operations The paragraphs under the heading Remote Operation contain information on commands or descriptions that pertain only to remote operations 2 11 Power On Sequence When the Generator is turned on a power on sequence starts During the power on sequence the microprocessor tests the analog circuitry...

Страница 21: ...cted to the MOD INPUT connector INT 0M Irxiicates that the internal modulation oscillator signal is phase modulating the Generator EXT 0M Indicates that the Generator is phase modulated by the signal connected to the TOD INPUT connector intJL Indicates that the internal modulation oscillator signal is pulse modulating the Generator EXT Jl Indicates that the Generator is pulse modulated by the sign...

Страница 22: ...elative to a reference frequency COMP Indicates that the compensation memory protection switch on the A2 Controller PCA is set to the enabled position FM Indicates that an FH compensation procedure is in progress OUT Indicates that an Output compensation procedure is in progress ATT Indicates that an Attenuator compensation procedure is in progress AMPLITUDE DISPLAY FIELD A 3 1 2 and sign digit di...

Страница 23: ...e modulation using the signal applied to the MOD INPUT connector EXT FM 0M Enables external frequency modulation using the signal applied to the TOD INPUT connector ext_TL Enables external pulse modulation using the signal applied to the PULSE MODULATION INPUT connector 400 1000 Alternately sets the internal modulation oscillator s frequency to 400 or 1000 Hz Selected frequency is displayed only w...

Страница 24: ...CSEQ3 key is pressed successive memory locations are displayed When the key is released the location Last displayed is recalled UNITS These keys with the exception of CCLR LCL serve as the terminating keystroke of a function entry thereby causing the Generator to be progranmed The amplitude units keys are also used during Amplitude Units Conversion entries MHz V Used with the CFREQ3 CFM3 and CAMPL...

Страница 25: ...right digit one digit to the right A push and hold key that displays the Uncal and Reject Entry status codes in the MODULATION FREQUENCY and AMPLITUDE display fields A push on push off key with a corresponding RF OFF indicator in the STATUS display field that enables or disables the output of the Generator A BNC connector for input of a 1V peak external modulation signal A BNC connector for input ...

Страница 26: ... which is either the standard oscillator the high Stabil ity oscillator if the Option 130 is installed or the medium stability oscillator if the Option 132 is installed In any case the internal 10 Miz reference signal is available at the 10 MHZ OUT connector When set to EXT the Generator reference is the 10 MHz signal applied to the external REF IN connector 10 MHZ IN OUT Connector CBNC provides t...

Страница 27: ...h the DATA keys The numerics appear in the appropriate display field 3 Select a UNITS key This gives the data its absolute value and causes the microprocessor to internally program the Generator to the new state For the amplitude and frequency functions the entered data programs the displayed value If the relative mode is enabled the displayedvalue may be different from the actual output value Onc...

Страница 28: ...e amount programmed in the step function with a single keystroke The command syntax for step entries is Select Step Function Enter Data Select Units Change Parameter 1 Select the parameter to be changed stepwise using one of the FUNCTION keys followed by the STEP key to enable the step function 2 Program the numeric step amount using the DATA keys 3 Select a UNIT key to give the data its absolute ...

Страница 29: ...litude Display Mode See Amplitude Units Selection in this section 52 Select dBuV Amplitude Display Mode See Amplitude Units Selection in this section 60 Disable DC AM mode See Modulation Entry in this section 61 Enable DC AM mode See Modulation Entry in this section 70 Set repeat rate for EDIT and STEP keys to medium 71 Set repeat rate for EDIT and STEP keys to fast 72 Set repeat rate for EDIT and...

Страница 30: ...lation oscillator between 400 and 1000 Hz The 400 Hz and 1000 Hz indicators are lit only when Internal AM FM M or Pulse modulation is enabled 2 19 Memory Memory entry using the STO key allows the operator to save up to 50 complete front panel settings for later recall No memory location needs to be specified for the sequence operation The command syntax for memory entries is Select Memory Function...

Страница 31: ...the STEP and EDIT keys start the self tests display the results of the power on self tests display the IEEE 488 addresU enable relative and fixed range features and disable or enable special attenuation features A complete list of the special functions available is presented in Table 2 4 The command syntax for special function entries is Select Special Function Enter Special Function Code 1 Select...

Страница 32: ...1 C03 L l Z71 LMHzjV CAMPL L 1 L71 L I Z51 LdBOn Remote FR10 7MZ AP 7 5DB Notes 1 Frequency ranging occurs at 245 512 and 1050 MHz 2 Frequency may be programmed with 10 Hz resolution when frequency 1050 MHz and with 20 Hz resolution when frequency 1050 MHz 3 FUNCTION FREQ or AMPL remains selected until another FUNCTION or STEP STO RCL or SPCL is pressed 4 Floating point number is indicated by the ...

Страница 33: ...evel vernier in fixed range has at least 1 8 dB of range the specified accuracy range is 1 dB Command Syntax Select Fixed Range Enable or Disable Summary COMMAND NOTES Enable Fixed Range Local CSPCLD C9 C13 1 Remote SP 9 1 Disable Fixed Range Local CSPCL 1193 tOl 2 Remote SP 9 0 Example Set the Generator for monotonic and nontransient amplitude control Bright Digit Edit only over the range of the ...

Страница 34: ...Select Amplitude Function Select Unit Summary COMMAND Convert dBm to volts Local CAMPL3 CMHz V3 CkHzlmV CHzluV3 Remote AP V MV UV NV Convert volts to dBm Local LAHPL CdBCm Remote AP DB NOTE 1 1 Example Change the displayed amplitude of 10 0 dBm to its voltage equivalent Local CAMPL3 CMHzjV Remote APV Note 1 Any voltage unit is accepted since the microprocessor automatically selects the units appro...

Страница 35: ... SP S 0 Select dBmV Display Units Local CSPCLJ LSI 111 Remote SP 5 1 Select dBuV Display Units Local SPCL3 LSI L21 Remote SP 5 2 2 27 Bright Digit Edit Entry The following information describes how to use a Bright Digit Edit Entry to change an instrument parameter The output frequency amplitude and modulation indexes can be modified with this entry method The RF OUTPUT ON OFF must be enabled for t...

Страница 36: ...Increase the value of that digit by pressing EDIT C three times Remote AB 1DB KA3 Example 2 Edit the displayed FM Deviation from 5 0 to 3 0 kHz Local Put the bright digit in the FM display by pressing CFM3 Select the 1 kHz digit by pressing the EDIT 03 or EDIT C 3 until the bright digit is on that digit Decrease the value of that digit by pressing EDIT CvD twi ce Remote DB1KZ KD 2 Notes 1 The brig...

Страница 37: ...formation describes how to use the memory function to store and recall front panel settings The Generator has 50 memory locations that are retained for 2 years with the power off The sequence feature allows the operator to recall successive memory locations Command Syntax Select Memory Function Enter Memory Location Summary COMMAND NOTES Store Local ST03 Cn3 Cn3 1 2 3 Remote ST int 1 4 Reca 1 Loca...

Страница 38: ...peration recalls the next higher memory location starting from the last memory location stored or recalled No memory location needs to be specified When the highest location is reached the sequence starts over again at location 01 6 While SEQ is pressed the next memory location number is displayed and the memory location is recalled This key is repeating 2 29 Modulation Entry The following informa...

Страница 39: ...mote MR 0 or 1 7 Summary COMMAND NOTES Enable or Disable AM DCAM FM 0M or Pulse Modulation Local CINT AM 8 9 CINT FM 0M CEXT AM CEXT FM 0M CEXTJI CSPCL C4 CO or Cl 10 CSPCL C6 CO or Cl 11 Remote Al 0 or 1 12 FI 0 or 1 AE 0 or 1 FE 0 or 1 PE 0 or 1 PI 0 or 1 DA 0 or 1 Example Set the FM deviation to 5 kHz set the modulation rate to 400 Hz and modulate the carrier internally 10 12 11 12 Local CFM 0M...

Страница 40: ...7 0 selects a modulation rate of 400 Hz 1 selects 1000 Hz 8 These are ON OFF operations any combination is allowed 9 Two indicators EXT HI and EXT LO are lit when external AM or FM is on to indicate that the external modulation signal is 2 above or 2 below the nominal 1 peak input requirement 10 Internal pulse modulation can be enabled by special function or by the alternate IEEE 488 command PI It...

Страница 41: ...a 10 Hz rounding quantity may be applied to the displayed frequency In the relative amplitude mode the actual amplitude is the sum of the reference and the displayed amplitude when the reference and the displayed quantities have the same units However with mixed units volts and dB the actual amplitude is the voltage value scaled by the dB value The actual amplitude may be displayed by pressing the...

Страница 42: ...e The special function code is a two digit number The first digit indicates the classification of the special function and the second digit specifies the particular special function The special function is executed when the second special function code digit is entered There are ten classes of special functions The special functions in the 0 n and l n class cause an action to be performed Classes ...

Страница 43: ...he rejected entry error code messages The CLR I LCL key may be used to clear a partial DATA entry or clear the flashing REJ ENTRY indicator Press the STATUS key while an UNCAL indication exists to display the uncal error codes in three fields Flashing codes denoted by indicate abnormal operation or aberrated output Non flashing codes indicate operation outside the specified range Press the STATUS ...

Страница 44: ...P C T Cv CkHzImV LHzjuV LX i radj 0 to 400 kHz 3 digits 3 0 to 40 0 rad 3 digits Remote DS float 6Z DU V DD MZ KZ HZ RD 0 to 400 kHz 3 digits 1 2 3 0 to 40 0 rad 3 digits AM depth Local CAM3CSTEP3 DATA U3 STEP L l tyl 0 to 99 1 Remote PS float PC pu V pD 0 to 99 1 1 2 Example Recall the Instrument Preset State RCL 9 8 Step the displayed frequency of 300 MHz in 10 MHz steps to 270 MHz Local CFREQ S...

Страница 45: ...eration beyond allowed range 400 000 000 Invalid frequency in COMP memory 000 001 000 Frequency not between 100 kHz and 2100 Miz 000 002 000 COMP switch not enabled or low rate FM option not disabled 000 004 000 Frequency Step not between 0 and 2100 MHz 000 010 000 COMP data may not be stored if procedure incomplete 000 020 000 Invalid compensation command 000 040 OOQ Invalid memory location 000 1...

Страница 46: ...e second part also includes typical timing data provided as an aid to system programmers This information can assist in writing programs that have greater speed and efficiency The Generator can be used with any IEEE 488 controller in the normal addressed mode The following two additional modes are available for operation without a controller Listen only mode Talk only mode In the listen only mode ...

Страница 47: ...emote The TALK ONLYand LISTEN ONLYsvcUches are only read when the Generator is powered on 2 37 Programming Commands After the address and mode have been set the Generator can be programmed by an IEEE 488 controller or from another generator Tables 2 7 and 2 8 and the programming examples following them provide the basic information on how to program the Generator Table 2 7 Index of IEEE 488 Comman...

Страница 48: ...lay 51 Select dBmV units Units 52 Select dBuV units Level SP 80 none Enable all Level correction Correction 81 Disable all level correction 82 Disable attenuator correction Amplitude SP 90 91 none Disabie enable amplitude Fixed Range fixed range operation BINARY LEARN COMMANDS Store a LI int string The Generator stores the Front Panel string into the memory Setup Location specified by int See the ...

Страница 49: ...r during level Entry compensati on procedure Interrogate IC none FR Interrogate the frequency of Compensation the current compensation Step Data TG procedure step Interrogate the target level or FM deviation of the current compensation procedure step Interrogate IH none none Interrogate the frequency and Het Adjust level offset necessary to make ment Data the het compensation adjustment For exampl...

Страница 50: ...quency by float counts Edit AM KP float none Move the bright digit to the AM display and edit AM by float counts FREQUENCY ENTRY Frequency Programming FR float GZ MZ KZ HZ Program displayed frequency in units of gigahertz megahertz kilohertz hertz Relative Frequency SP 20 21 none Di sable enable relative frequency ope rati on Relati ve Frequency RF 0 1 none Alternate programming command for disabl...

Страница 51: ...seven counts Each count indicates the total number of actuations for one of the seven attenuator sections in the Generator Instrument Identi f i cati on ID none none The Generator responds with its model number for example 6062A Elapsed T ime Indicator IE none none The Generator responds with the total operating time since the Generator was manufactured Interface Modes II none none Interrogate the...

Страница 52: ...r codes Software Version IV none none Interrogate the software ver sion The Generator responds with the status message Vxx x where x s are decimal digits representing the current software revision level Compensation Memory Status 11 none none Interrogates the compensation memory status The Generator Responds with three fields AAAAAA BBBBBB CCCCCC See Table 4D 7 for a list of status codes MEMORY EN...

Страница 53: ...Z megahertz KZ ki 1 cfiertz HZ hertz External PE 0 1 Di sable enable external pulse Pul se modulation Internal SP 40 41 Disable enable internal pulse 1 Pul se modulati on Interna 1 PI 0 1 Alternate programming command Pulse for disable enable internal pulse modulation operation MONITOR COMMANDS Input Bit IB none BIT Respond with the value of the Desig designated hardware bit nator Output Bit 08 0 ...

Страница 54: ...ation XR1 restores attenuation to its previous state RF ON OFF ENTRY j I RF Output RO 0 1 none Turn RF output off on j SPECIAL FUNCTION ENTRY Special SP 00 Clears all special functions Funct i ons 02 Initiates self test 03 Display check 04 Key check 07 08 Set reset SRQ 09 Display S W rev and instr ID 10 Display IEEE 488 address 11 Display self test results 12 13 Turn on off display 14 Initialize m...

Страница 55: ... the SRQ mask STEP ENTRY Program FS float Program frequency step size FREQ STEP in units of Size GZ gigahertz MZ megahertz KZ ki 1 ohertz HZ hertz Program LS float Program amplitude step size AMPL STEP in units of Size V volts MV mil livolts UV microvolts NV nanovolts DB dB Progran PS float PC Program AM step size in AM STEP Size pe rcent Program DS float Program FM step size in units FM STEP of S...

Страница 56: ...n Local and Remote Operation Those commands that are only available from the IEEE 488 Interface are described in the Command Descriptions paragraphs later in this section Table 2 7 is an index for the IEEE 488 Commands used in Table 2 8 This index is a list of the command headers according to function Table 2 8 lists all the remote commands that are recognized by the Generator The commands are lis...

Страница 57: ...ach other in frequency This configuration may be used to track frequency amplitude AM or EM 1 Connect two signal generators together with an IEEE 488 cable 2 Set the rear panel address switch of the first generator talker as follows 00100000 Cycle the power of the first generator so the software will read the talk only switch 3 Set the rear panel address switch of the second generator listener as ...

Страница 58: ... the bus The program then enters a loop where it waits for the ready SRQ sends the GET group execute trigger interface message to step up the frequency and waits again At this time do the following 1 Connect the Generator to the controller with an IEEE 488 cable 2 Set the rear panel addre ss switch of the Generator as follows 0000011 3 Enter the following program into the controller 20 100 no 120 ...

Страница 59: ...he Generator was in the remote mode the data output of a talker may be sent 2 45 GOING FROM LOCAL TO REMOTE The Generator switches from local to remote when the my listen address message MLA is received and the Remote Enable REN signal is true 2 46 REMOTE OPERATION When in the remote mode the following conditions are present The front panel REM indicator is lit Device trigger GET device clear DCL ...

Страница 60: ...erator is addressed to listen when the MLA message is received The front panel ADDR indicator of the Generator is lit while the Generator is addressed to listen Data Talker Ope ration The Generator sends data to the IEEE 488 bus only when requested by a programming data message Message formats are described in the Command Description paragraphs An End of Record EOR character is sent with EOI asser...

Страница 61: ...ually masked with the set mask command SM The service request mask can be interrogated with the interrogate mask command IM DCL Device Clear Clear The DCL message is ignored when in local When the DCL Operation message is received during remote operation the Generator is cleared Any characters in the input buffer are cleared followed by the same operation as the clear command CL The operation of t...

Страница 62: ...en switching from remote to local unprocessed commands in the input buffer are processed until the input buffer is cleared or a front panel entry is made Switching to local has no effect on the contents of the output buffer 2 48 Talk Only Mode Figure 2 6 shows two generators connected together with the IEEE 488 Bus To select the talk only mode set the TALK ONLY address switch to 1 up if the TALK O...

Страница 63: ...Z upper and lower case letters are treated equally digits 0 through 9 and the following special characters CR LF Spaces tabs characters and the parity bit are ignored The IEEE 488 commands for the Generator consist of the following three parts Header Numeric Suffix The header is always required but the numeric and suffix may be optional This rule gives the following four possible combinations HEAD...

Страница 64: ...epted However values greater than 65 535 are rejected Hexadecimal numbers are preceded by an X Only four hexadecimal digits are accepted Specifying a number in hexadecimal for the read word and read byte commands causes the response to be sent in hexadecimal Decimal digits may be the numerals 0 through 9 Hexadecimal digits may be the hexadecimal digits 0 through F 3 Floating Point The floating poi...

Страница 65: ...Table 2 11 2 54 Command Descriptions The following paragraphs describe the remote IEEE 488 Interface operating commands that are not accessible from the front panel of the Generator IEEE 488 Interface commands that are accessible from the front panel of the Generator are described earlier in this section Local and Remote Operation 2 55 BINARY LEARN COMMANDS Front panel setups are stored in the mem...

Страница 66: ...n Monitor Commands for a complete list of designators Learn Suffix A Learn suffix is a string of ASCII characters that contain coded memory location contents Refer to the paragraphs on Binary Learn Commands for decoding of the learn string NOTE The EOR end of record character is sent with EOl asserted TMO selects the linefeed character and TMI selects the carriage return character Example iEEE 488...

Страница 67: ...CHAR HEX EQIV INSTRUCTION VALUE Reference Amplitude CHAR POS 5 6 7 8 60 CHAR A A A A K HEX EQIV 0 X 0 INSTRUCTION c 1 and 3 AM Step CHAR POS CHAR HEX EQIV INSTRUCTION VALUE RESOLUTION RESULT Displayed Amplitude 9 10 11 12 59 ...

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Страница 69: ...A C E 0 0 2 4 lo b 0 0 b b b b b b h b b h b b AHPL Di splay 0 dBm 1 dBmV 2 dBuV 3 invalid DC AM 0 oii 1 on Phase Modulation 0 off 1 on External Pulse 0 a off 1 on Internal Pulse 0 off 1 on External FH 0 off 1 on Internal FM Relative Amplitude special function 3x 0 Off 1 On Relative Frequency special function 2x 0 off 1 on Step Function 01 FREQ 10 AMPL 11 MOD L Modulation Rate 01 400 Hz 10 1000 Hz...

Страница 70: ...t 0101 5th digit 0110 6th digit 0111 th digit 1000 8th digit 1001 9th digit Modulation display 0 1 FM AMPL bright digit 00 1st digit 01 2nd digit 11 3rd digit 1 AM bri ght di 0 1 St digi FM bright digit 00 1 St digit 01 2nd digit 10 3rd digit CHAR POS Amplitude Special Functions 63 CHAR HEX EQIV BINARY EQIV Amplitude Fixed Range Special Function 9x Special Function 8x 00 All Correction on 01 Atten...

Страница 71: ...Data Set 3 mi sceL laneous data CHAR POS CHAR HEX EQIV INSTRUCTION BINARY EQUIV 65 66 00 valid 01 EXT LO 10 EXT HI 11 invalid ...

Страница 72: ...add in the next hexadecimal digit until the least significant hexadecimal digit has been added NOTE If the hexadecimal number started with an 8 through F the number is negative Perform step dfor negative numbers d Subtract 16 from the number raised to the power of the number of digits Example of Instruction 1 To convert hexadecimal number IE 1 16 14 30 Since the most significant digit is 1 the num...

Страница 73: ...th a resolution of 10 Hz The actual FM deviation is 5000 Hz To convert the number to the f M quantity in radians multiply the number by the power of ten represented by the resolution then divide the result by 1000 Example A deviation of 123 with a resolution of 1 and units of i would be a M deviation of 1 23 radians If the Low Rate FM option is installed the FM quantity adjusted by the resolution ...

Страница 74: ...or status is also cleared when it is interrogated with the IR command or the CL clear Generator command or the SDC and DCL clear The CL command is used to clear the instrument state The same actions are performed with the SDC and DCL clear interface messages In addition the input buffer is cleared with the clear interface messages The following IEEE 488 commands are performed with the clear Genera...

Страница 75: ... 488 interface only when the microprocessor is ready to process them In this mode the input buffer will contain a maximum of one message A message may be one command or one record depending on the setting of the record mode When turned off messages are read from the IEEE 488 Interface to the input buffer of the Generator at the fastest rate In this mode the input buffer may contain up to 80 charac...

Страница 76: ... valid state ofthe Generator occurs 45 ms after any hardware has been changed 2 58 INTERROGATE COMMANDS Interrogate commands allow the status of the Generator to be given over the IEEE 488 Interface These commands consist of headers only The interrogate commands available on the IEEE 488 interface are lA Attenuator Actuation Log ID Instrument ID IE Elapsed Time Indicator H Interface Mode Status IL...

Страница 77: ...ted as follows Terminator mode I Record mode 2 Valid mode 4 Unbuffered mode 8 Error mode 16 The IL command interrogates the ten entry error log in non volatile memory An error can be either a failed self test or an uiicalibrated condition as a result of a hardware status line UNLOKL or UNLVLL The elapsed time since the instrument was manufactured is also logged with the error Each of the ten error...

Страница 78: ... 4 which indicates that the Generator being interrogated is in fact a 6062A The two remaining numbers are the sum of the option related numbers as follows 2nd Number 4 130 High Stability Reference Option 8 651 Low Rate FM Option 16 132 Medium Stability Reference Option 3rd Number 2 830 Rear Panel RF Output MOD Input and Pulse MOD Input Option For example 4 12 2 would indicate a 6062A with Options ...

Страница 79: ... 59 MONITOR COMMANDS The Generator monitor commands are intended for troubleshooting and maintenance procedures They allow the instrument hardware to be programmed to states not normally possible with the regular programming commands CAUTION The output of the Generator Is not guaranteed If the Generator hardware has been changed with these monitor commands There are three types of monitor commands...

Страница 80: ... intam kb U13 9 IF intfm kb U13 5 IP int pulse kb U13 15 LP mid kb U9 5 MA rmuxO kk U32 5 MB rm uxl A4 U32 2 MF mf400l kb U13 2 MG module gate kZ U17 15 MS trmodl A4 U32 15 NE nven kZ U17 9 PM phase mod kb U23 12 RI rinh A4 U32 9 RR rprst A2 U17 6 SE shen kk U32 12 SH shet A4 U32 16 VH vcohl kb U23 9 VQ vcoq kb U23 15 XA x2l kb U9 19 XB x2fl1 kb U9 16 XC x2fl2 A6 U9 15 XD x2fl3 A6 U9 12 XE x2fl4 A...

Страница 81: ...ttenuati on XB integer 1 Set synthesizer frequency XD f loati ng point decimal MZ 2 RF on off XR 0 or 1 3 Notes 1 The current settings of the Attenuator can be read or set The attenuation is a number from 0 to 23 where the number specifies the multiple of 6 dB attenuation Zero indicates no attenuation and 23 is the maximum attenuation Only the attenuators are changed with the XB command The value ...

Страница 82: ...ponse will indicate that the Generator generated the SRQ value of 64 and that a rejected entry occurred value of 2 In addition other values may be set The default SRQ mask is 192 The IM command interrogates the current SRQ mask and an integer is returned The XF command enables a mode that causes an SRQ to be generated any time the Generator processes an entry In this mode afront panel SRQ is gener...

Страница 83: ...rocessing IEEE 488 commands syntax errors and processing errors All errors are accumulated until the error status is interrogated or is explicitly cleared The IEEE 488 rejected entry status is interrogated with the IR command The error status is cleared with one of the following commands CE Clear Error Command CL Clear Command DCL or SDC Clear Interface Messages The error status is also cleared at...

Страница 84: ...ng level correction reduces the software programming time by 10 ms but does not affect the switching time of the frequency programming circuitry A 10 ms settling delay should be added if level correction is disabled and a settled RF output is required 2 70 TIMING OPTIMIZATION Timing depends upon the interface modes selected Refer to the paragraphs on Interface Mode Commands for a complete descript...

Страница 85: ...ions 1 FUNCTION TIME IN ms NOTES Frequency 70 1 2 3 4 Amplitude in Volts 60 1 2 4 5 Amplitude in dBm 95 1 2 4 5 AM Depth 50 2 4 FM Deviation 35 4 Modulation Frequency 25 Enable Disable AM 55 2 Enable Di sable FM 25 Recall 98 190 6 5 RF Output On 50 2 RF Output Off 35 Notes 1 May take up to 5 ms longer if the relative mode is enabled 2 Can save 10 ms if all Level correction is disabled with special...

Страница 86: ...ower off Record terminator same as power off Unbuffered mode same as power off Record mode same as power off SRQ mask same as power off Trigger configuration same as power off SRQ interface signal may be asserted 3 Notes 1 The contents of memory location 98 Instrcmient Preset State is listed in Table 2 3 2 The last memory location is used for sequence operations 3 If the SRQ mask has the power on ...

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