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HP HP 8904A, Operation And Calibration Manual

The HP HP 8904A Service Manual is available for free download at manualshive.com, allowing users to access the comprehensive manual for this high-quality product. This manual provides detailed instructions and insights, enabling users to enhance their understanding of the HP HP 8904A and its optimal usage.

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Summary of Contents for HP 8904A

Page 1: ...s underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In stock Ready to ship TAR certified secure asset solutions Expert team I Trust guarantee I 100 satisfaction All trademarks brand names and brands appearing herein are the property of their respective...

Page 2: ...esult of this transition the products and related documentationcontained in this shipment may be labeledwith either the Hewlett Packardname and logo the Agilent Technologies name and logo or a combinationof both Information in this package may refer to Hewlett Packard HP but applies to your Agilent Technologies product Hewlett Packardand Agilent branded products with the same model number are inte...

Page 3: ... material may be reproduced by or for the U S Government pursuant to the Copyright License un der the clause at DFARS 52 227 7013 APR1988 Copyright HEWLETT PACKARDCOMPANY 1989 EAST 24001 MISSION AVENUE TAF C 34 SPOKANE WASHINGTON U S A 99220 Operation and CalibrationManual HP Part 08904 90007 Other DocumentsAvailiable Operation and Application Guide HP Part 08904 90006 Service Manual HP Part 08904...

Page 4: ...1 Regulatory Information Updated March 1999 1 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 5: ...s power cord or supplied power cord set SAFETY SYMBOLS AIndicates instrument damage can occur if indicated operating limits are exceeded A Indicates hazardous voltages Indicates earth ground terminal WARNING A WARNING note denotes a hazard It calls attentionto a procedure practice or the like which if not correctly performedor adhered to could result in personal injury Do not proceed beyond a WARN...

Page 6: ...ingto qualifiedpersonnel To prevent electrical shock do not remove covers Servicinginstructions are for use by qualified personnel only To avoid electrical shock do not perform any servicingunless you are qualified to do so The opening of coversor removal of parts is likely to expose dangerousvoltages Disconnect the product from all voltage sources while it is being opened The power cord is connec...

Page 7: ...rature outsidethe cabinet must be less than the maximum operatingtemperature ofthe product by 4 C for every 100 watts dissipated in the cabinet If the total power dissipated in the cabinet is greater than 800 watts then forced convectionmust be used Product Markings CE the CE mark is a registered trademark of the European Community A CE mark accompanied by a year indicated the year the design was ...

Page 8: ... H P for use with an instrument will execute its programming instructions when properly installed on that instrument HP does not warrant that the operation of the instrument or software or firmware will be uninterrupted or error free LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer suppliedsoftwareor interfaci...

Page 9: ... proceed beyond a CAUTION sign until the indi cated conditions are fully understood and met Any interruption of the protective ground ing conductor inside or outside the instru ment or disconnecting the protective earth terminal will came a potential shock hazard that could result inpersonal injury Ground ing one conductor of a two conductor outlet is not sufficient protection Whenever it is likel...

Page 10: ... of materials and normal motions of persons working with static sensitive devices When handling or servicing equipment containing static sensitive devices adequate precautions must be taken to prevent device dam age or destruction Only those who are thoroughly familiar with industry accepted techniques for handling static sensitive devices should attempt to service circuitry with these devices I n...

Page 11: ...pment 1 10 Documentation Updating A Description of the Manual Update Packet 1 10 Signing Up for the Documentation Update Service 1 10 Compatibility 1 9 1 9 1 10 Serial Numbers 1 10 Section 2 Installation Introduction 2 1 Initial Inspection 2 1 Preparation For Use 2 1 Line Voltage Selection and Fuse Replacement 2 2 Power Cables 2 2 HP IB Address Selection 2 2 Interconnection 2 4 Mating Connectors 2...

Page 12: ... 003 3 14 D i t a l P o 3 15 General Information 3 15 Connector hnctions 3 15 Remote Operation 3 18 General Information 3 18 Programming Considerations 3 18 HP IB Compatibility 3 19 HP IB Code Listings for the HP 8904A 3 19 Status Byte 3 31 General Information 3 31 Using the Status Byte 3 31 Error Isolation 3 32 Error Codes and Help Messages 3 34 Special Functions 3 37 Introduction 3 37 Special 0 ...

Page 13: ...ction 4 1 Equipment Required 4 1 Performance Test Record 4 1 Calibration Cycle 4 1 Basic hnctional Checks 4 1 Introduction 4 1 Equipment Required 4 1 Performance Test Record 4 1 Calibration Cycle 4 1 Basic Functional Checks 4 1 Performance Test 1 AC and DC Amplitude Accuracy 4 3 Performance Test 2 AC Amplitude Flatness 4 4 Performance Test 3 Spectral Purity 4 10 Performance Test 4 Phase Accuracy 4...

Page 14: ... Gain and Offset 5 4 Adjustment 2 Output Balance 5 6 Adjustment 3 Output Gain Option 006 5 7 Adjustment 4 Sharp Cutoff Low Pass Filter 5 8 Adjustment 5 Sine X XCompensation 5 11 Adjustment 6 Display Backlighting and Contrast 5 13 Adjustment 7 Phase Synchronization Option 005 5 14 rev OlNOV89 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 15: ...ent Section 3 Operation provides information about panel features and includes operator s checks operating instructions for both local and remote operation and operator s maintenance information Operating information for options after Option 004 is provided in the form of separate supplements Section 4 Performance Tests provides the information required to check performance of the instrument again...

Page 16: ... The HP 8904A is a Multifunction Frequency Synthesizer that produces six fundamental waveforms to create complex signals The waveforms available are dc sine wave ramp sawtooth triangle square wave and white Gaussian noise The standard instrument is equipped with a single internal channel and one output The addition of available options can provide a second signal output port three additional inter...

Page 17: ... 0 to 359 9O Resolution 0 lo or 0 001 radians Increment accuracy Relative to Oo for a fixed frequency 20 05O 0 1 Hz to 100kHz DC amplitude Range 0 to 21OV open circuit Resolution 3 digits Accuracy 520 mV or r2 1 whichever is greater Spectral Characteristic Equal energy per unit bandwidth Amplitude range 0 to lo into a 5052 load Resolution 3 digits Gaussian Noise white Mathematically Derived Charac...

Page 18: ...ier FM accuracy at a 1 kHz rate 20 kHz deviation and 600 kHz carrier Typically 2 0 2 of setting Pulse modulation level accuracy Typically 5 up to 20 kHz pulse rate DSBSC carrier suppression Typically 72 dB Intermodulation two equal signal summed into one output Typically 70 dBc for frequencies up to 100 kHz Specifications for level accuracy modulation accuracy and spectral purity are all reference...

Page 19: ...digital control port Maximum allowable address skew via digital port OPTION 005 SPECIFICATIONS 5052 outputs only Unit to unit phase accuracy Additional 30 nsec error 0 1 Hz to 100kHz Total phase error between units is then the greater of 20 1 degree or 60 nsec 0 1 Hz to 100kHz Maximum number of synchronized units 8 units using low loss power splitters for a total of 16 phase related outputs if all...

Page 20: ...ase is connected to the external timebase input When an external timebase is connected it will be routed to the timebase output connector Temperature Operating O C to 5OOC Storage 2OOC to 70OC Humidity range 95 RH O C to 4OoC Remote operation HP IB All functions except the line switch HP IB compatibility SHl AH1 T6 TEO L4 LEO SR1 RL1 Power 100 120V 210 48 440 Hz are remotely controllable PPI DCl D...

Page 21: ...eplaces the standard 500 output of Output 1 1 6 MECHANICAL AND DOCUMENT OPTIONS AND ACCESSORIES Rear Panel Outputs Option 004 The RF Output Connectors are located on the rear panel Option 004 can not be installed with either Option 005 Phase Synchronization or Option 006 High Power Balanced Output ExtraOperatingandSewiceManuals 1each Option910 An additional Operation and Calibration Manual and Ser...

Page 22: ... a series of signaling events Bit period and on off levels can be user defined Note Hop RAM Sequence Mode and FM Stereo Composite Generator functions are only available in Option 001 instruments with serial prefixes 2948A and above Detailed operating information for these functions is provided in section 3C HopRAMSequenceMode Up to 16 different frequency amplitude and phase settingscan be preset S...

Page 23: ... the followinglist of interface functions SH1 AH1 T6 TEO L4 LEO SR1 RL1 PP1 DC1 DTO and CO The Multifunction Synthesizer interfaces with the bus via open collector TTL circuitry An explanation of the compatibilitycodes can be found in the IEEE Standard 488 and the identical ANSI Standard MC1 l For more detailed information relating to programmable control of the Multifunction Synthesizer refer to ...

Page 24: ...ur manual is provided with updating information to make it as current as possible This updating information includes any hardware or software changesthat have occurred as well as corrections to the documentation A Description of the Manual Update Packet A Manual Update packet consists of replacement and addition pages which should be incorporated in your manual to bring it up to date Signing Up fo...

Page 25: ... f l Ohms Range 0 to 1kR Ohms Accuracy f0 2 FrequencyRange 10 MHz Absolute Accuracy f5 ppm Analyzer FrequencyRange 0 to 5 MHz Display Range 80 dB Source Frequency Range 0 to 5 MHz Input and Output Impedance 500 3 dB Bandwidth 1 MHz Sensitivity 5 mV per division Input Impedance 1 MR and 50R Triggering Externaland Internal Two Channels A vs B Display FrequencyRange 1 kHz to 1 MHz Output Level 1 Vrms...

Page 26: ...yRange 20 Hz to 600 kHz Flatness f0 03O 0 Input Impedance 50R HP 11050A or Labs 1395A 1 Instrument Type Thermal Converter Multifunction Synthesizer Power Splitter 2 required P PerfotmanceTests A Adjustments Usedonly to test HP 8904A Option005 All specifications must match the HP 8904A Opt 005 HP 0904A Option 005 1 12 rev 01NOV89 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SO...

Page 27: ...mage or defect or if the instrument does not pass the electrical performance test notify the nearest Hewlett Packard office If the shipping container is damaged or the cushioning material shows signs of stress notify the carrier as well as the Hewlett Packard office Keep the shipping materials for the carrier s inspection 2 3 PREPARATIONFOR USE The Multifunction Synthesizer requires a power source...

Page 28: ...ccordingto the country of destination Forprotection againstfire hazard the linefuse should only be a 250V fuse with the correct current rating Table2 1 Line Fuse Rating and HP Part Number Power Cables BEFORE CONNECTING THIS INSTRUMENT the protective earth terminal of the instrument must be connected to the protective conductor of the Mains power cord The Mains plug shall only be inserted in a sock...

Page 29: ...oo 900 7 STR STR 2 STR 90 I 0 STR STR 79 79 79 p 6 STR 90 4 3 STR 90 90 3 STR STR SEVl011 79 NZSS198 ASC112 80 1959 24507 Type 12 4 STR 90 79 I 4 STR STR Systems Cabinet Use 0 STR STR 8 90 900 80 8 STR 90 59 Installation I Mint Gray Mint Gray United Kingdom Cyprus Nigeria Rhodesia Singapore New Zealand Mint Gray Mint Gray Jade Gray Jade Gray Jade Gray East and West Europe Saudi Arabia Egypt unpola...

Page 30: ...that are compatiblewith those specifiedin US MIL C 39012 Interface Connector HP IBmating connectoris shownin Figure 2 1 Note that the two securing screws are metric DIGITAL PORT Connector This is a 15 circuit 15 pin type D subminiature connector Corresponding mating connector is HP part 1251 0221or TRW part DAM15P The Hop Ram functions for the port only operate on instruments equippedwith Option00...

Page 31: ...strument by model number and fullserial number Other Packaging Thefollowinggeneralinstructions shouldbeused forrepackaging with commer cially available materials a Wrap the instrument in heavy paper or plastic If shipping to a Hewlett Packard office or service center attach a tag indicating the type of service required return address model number and full serial number b Use a strong shipping cont...

Page 32: ...e is 0 0 Vdc to f0 4 Vdc and the false 0 state is 2 5 Vdc to 5 Vdc Programming and Output Data Format Refer to Section 3 Operation Mating Connector HP 1251 0293 Amphenol57 30240 Mating Cables Available HP 10833A 1 meter 3 3 ft HP 108338 2 meters 6 6 ft HP 10833C 4 meters 13 2 ft HP 108330 0 5 meters 1 6 ft Cabling Restrictions instrument 65 6 ft 1 A Hewlett Packard Interface Bus system may contain...

Page 33: ...ument Functions and Operating Considerations describes the capabilities and operating considerations for a standard HP 8904A and the various options DigitalPort identifies the connectionsfor this port and describes how it is used for operations such as fast hopping Option 003 equipped instruments Remote Operation lists the HP IB codes and capabilities implemented in the HP 8904A Programmingexample...

Page 34: ...u can quickly learn to create almost any signal you need For more information on the capabilitiesand operation of standard and optional instrument functions refer to the detailed information following later in Section 3 Step by step operations for each option are included in the HP 8904A Multifunction Synthesizer Basic Operation and Application guide I I I I I I I 1 Figure 3 1 HP 8904A finctional ...

Page 35: ...ntrols can be selected remotely over this control bus Refer to the Remote Control information described later in Section 3 for more information regarding the use of this connection Exampleprograms for using the HP IB are also provided Standard Single Channel This block contains the one standard channel included with every instrument channelA You can controlthe Frequency Phase Amplitude and Wavefor...

Page 36: ...mplitude AMPTD since the Amplitude setting is always set to zero 0 when the Destination is changed If you turn the Destination O f ffor any channel you can not change the amplitude for that channel until it is turned back On Parameter Value Ezample IFREQI frequency 20 0 1 8 24 I m destination ch A 1 destination ch B C D 1 2 or OFF 1 2 AM FM 4M DSB PULSE OFF Terminator Hz kHz none none IAMPTD ampli...

Page 37: ...Model 8904A Operation L 1 c Figure 3 2 HP 8904A Signal Control finctions 3 5 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 38: ...ailed operating examples are given in the HP 8904A Multifunction Synthesizer Basic Operation and Application guide Standard Instrument Creating a Simple Signal From Digital Data WAVEFORM AMPLITUDE TABLE DATA DATA PHASE ADJUST DATA 4 4 DIGITAL L FREO DATA P 0 C D 0 P Is x AHPL ITUDE CLOCK MULITIPLIER I FILTER CONTROL I OUTPUT 1 ATTEN 2 SAMPLER SAMPLER AUDIO DESTINATION CONTROL ON OFF DAC OVER R O A...

Page 39: ...e levels Referto the Operating TechnicalReference Amplitude Resolutioninformation includedlater in Section 3 if you need more information regarding very fine amplitude adjustments Floating Output The HP 8904A is designed to allow the user to have a floating ground that is independent of the chassis ground of the instrument This is why there is a LOW and HIGH connection for each output You may also...

Page 40: ...bbreviated specifications are listed here to provide general operating guidelines Complete detailed specificationsfor a l l instrument options are listed in Section 1 3 8 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 41: ...logue HP part 5953 8494 Contains examples of severaltypes of waveforms that can be created with Option 001 and the instrument settings used to obtain those signals ANALOG CONVERSION 1 DIGITAL WAVEFORM SYNTHESIS 1 r AND CONDITIONING I AM FM W DSE PULSE z l a b CHANNEL B f R m PHASE m AMP PHASE CHANNEL D PHASE Figure 3 4 HP 8904A Option 001 Operation Addition of Channels 6 C and D These additional c...

Page 42: ...can adjust the order of the tones to appear in any sequence The On Time and Off time of each tone can be individually set Digital Sequencing Digital sequencing allows you to specify a series of digital on off values to be output The Sequence Base Period On Level and O f f Level are adjustable Sequences of up to 3000 bits values may be specified Hop RAM Sequencing Hop RAM sequencingoffersa combinat...

Page 43: ... A N A 0 Hz to 600 kHz OVTOlOV 3f digits Signal Format Sequence I Type Number of Different Maximum Signals SequenceLength Tone DTMF Digital Hop RAM Single Frequency 16different user 250 tones Dual Tone 16 standard DTMF 250 tones Multi Frequency tone pairs 0 9 A D Binary Octal or 16 0 F Hex 250 Cbit words Output Serially Tones defined frequencies Hexadecimalcodes 1000 bits Single Freq Tones 16 0 F ...

Page 44: ...e Outputs for the two channels are also independently controlled The phase relationship between the two channels is precisely controlled and can be altered by adjusting the Phase of either channel Operating Considerations Option 002 DestinationControl Option 002 does not allow you to change the Destination of the two channels Channel A is always designated for Output 1 Channel B is always designat...

Page 45: ...ECTION RAM ADRS SELECTION DIGITAL PORT HOP RAM ADRS SELECTION FOR FAST HOPPING Figure 3 5 HP 8904A Option 003 Hopping Between 16 ChannelA Settings How Hopping is Performed Option 003 allowsyou to define 16 different channel A frequency phase and amplitude configurations and storethem in the Hop Ram sectionof memory You can then tell the HP 8904Awhich configuration you want to output by selectingth...

Page 46: ...ol channel A can be hopped while it is being modulated or summedwith other signals except that the amplitude setting cannot be hopped when AM or DSB modulation is selected and the phase setting cannot be hopped when q 5 M is selected 0 Hop Mode can not be used in conjunctionwith any of the three Signal SequenceModes provided by Option 001 Abbreviated Specifications Option 003 SupplementalCharacter...

Page 47: ... Functions Zero Crossing Outputs These are TTL signals that identify when the associated channel s waveform is crossing the 0 volt point in its waveform 0 and 1 8 0 This output pulses high for approximately 600 ns each time the zero crossing occurs These outputs are available with a l l instrument configurations regardless of what options are present in your instrument NOTE Changing the Phase sett...

Page 48: ...dthe Hop Menu and set the desired Hop Ram parameters for each address you can output the signal for each addressby turning the Digital Port ON and then setting the appropriate address on these connections As each Hop Ram address is set on these pins the corresponding channel A configuration is output There is a delay between the time the address is set on the Digital Port and the time the signal a...

Page 49: ...onstrate this functionby setting up a sequence and then connectingpins 9 and 14together to trigger the sequence The sequence is re triggered each time a high to low transition is applied to this pin Trigger Out This pin is not used with any of the current options and does not provide a useable output at this time 3 17 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www ar...

Page 50: ...terface circuitry and programmingare discussedin detail It is written to both the experienced and inexperienceduser Programming Considerations 0 HP IB programs examples in this manual are written in HP BASIC language 0 This manual is not intended to teach BASIC languageprogramming Thetables and programming examples that follow assume that you have enough programming experience to understand and ap...

Page 51: ... RL1 Remote Local complete capability PP1 Parallel Poll remote configuration DC1 Device Clear full capability DTO Device Trigger no capability C O Controller no capability HP I8 Code Listings for the HP 8904A The followingpages contain listings of the HP IB programming codes for the HP 8904A The codes are arranged in four tables The first table Table 3 5 contains the HP IB codes for the functions ...

Page 52: ...Level Form FS Output Number Filter Example FS1AU Output Board Filter Select DesignateOutput Port 1 or 2 if the instrument is equipped with Option 02 followed by no space the desired filter Eliptic Sharp Cutoff Gaussian Low Overshoot Auto Automatic Form FC Output Number ON or OF Example FC1ON Float Output On Off Control DesignateOutput Port 1 or 2 if the instrument is equipped with Option 02 follow...

Page 53: ...ample GM4 Go to Mode Go to Mode accepts the values 0 9 0 Channel Configuration Mode 1 Reserved for future options 2 Tone Sequence Mode 3 DTMF Sequence Mode 4 Digital Sequence Mode 5 9 Reserved for future options This function will return a three digit ASCII string representingthe Error Number 000 to 255 where 0 means no error reported Refer to Appendix B for the list of Help Messages ID Read the I...

Page 54: ...6 Freq_a_value ASCII Data 0000000 0 00 000000 00 000000 00 000000 0000000 0 0000000 0 0000000 0 00000000 oo00 0 00000 00000 Where x is the channel number A D ReturnValue Waveform 00001 Sine 00002 Ramp 00003 Triangle 00004 Dc 00005 Noise 00006 Square implied Units HZ Volts Volts volts Percent Hz Degrees Degrees See ReturnValue See Return Value Return Value 00007 00008 00009 00010 00011 00012 00013 ...

Page 55: ... are lost Do not leave a space betweenthe mnemonic and the data value Example To activate Special Functions 1 and 2 the command would be SF6 Special1 value 2 Special2 value 4 6 Form RSF Read Special Function Value The returned value is the decimal representationof a 16 bit binary number indicating the Special Function s that are active Value range 00000 to 65535 in ASCII is returned Special Flag B...

Page 56: ... WF Channel Waveform Example WFATR Set waveform of a channel Valid data values for waveform are SI Sine RA Ramp TR Triangle SQ Square NS Noise DC dc I tt t ttttt lt n n HP SERIES 200 300 BASIC language programmingexample for the standard HP 8904A MULTIFUNCTION SYNTHESIZER OUTPUT 726 PS OUTPUT 726 GMO OUTPUT 726 FClOF OUTPUT 726 FRAlOOO lHZ OUTPUT 726 APA1 25VL OUTPUT 726 PHAgODG OUTPUT 726 WFARA E...

Page 57: ...Tone or DTMF amplitude Amplitude terminators are VL MV and UV Digital Sequence On Level DigitalSequence Off Level Form DAPH Amplitude Terminator Digital SequenceMode amplitude terminators are VL MV and UV Examples DAPH4VL DAPL 1VL Digital Sequence Base Option001capabilitieshave the Hop RAM sequence and I Select Binary Base Select Octal Base Select Hexadecimal Base Form STOFcTimeValue Terminator Ex...

Page 58: ... SEQP lndex Value ET Example SEQP37ET Set Sequence Index Valid terminator is ET Form WSQ Data String Terminator Examples Tone Sequence WSQO1123456789ABCDEF DTMF Sequence WSQO123456789ABCDW Digital Sequence Binary Base WSQO101010101010101 Digital Sequence Octal Base WSQ0123456701234567 Digital Sequence Hex Base WSQOl23456789ABCDEF Write sequence string Entry string is terminatedwith cr lf EO1 or th...

Page 59: ...t 1 Freq 37 kHz Amplitude 1volt Phase 90 degrees Waveform Sine Set channel C to Destination Output 1 Freq 19 kHz Amplitude 0 1 volt Waveform Sine Set channel Dto Destination Output 1 Freq 1 kHz Amplitude 2 volts Waveform Sine I Figure 3 9 Sample Program for Configuring ChannelsA B C and D 1 HP SERIES 200 300 BASIC language programmingexample for the HP 8904A MULTIFUNCTIONSYNTHESIZER OPTION 001 dig...

Page 60: ...TION SYNTHESIZER OPTION 002 OUTPUT 726 PS OUT 726 GMO OUTPUT 726 FRMKZ APA2VL PHA45DG WFASQ HP SERIES 200 300 BASIC language T 7 1 T T T T T T T T T T T T T T T T T T T T T T T T T T T T T U T T T T T T Preset HP 8904A Goto channel configuration mode Set channel A frequency 2 kHz amplitude volts phase 45 degrees and waveform square Set channel B frequency 2 kHz amplitude 2 volts phase 90 degrees a...

Page 61: ...FRH723 5HZ Enter Hop Mode frequency parameter Valid terminators are HZ and KZ Form FHR ON or OF Example FHROF Frequency Hop On Off Control Form H R A d or 2 Digit AddresoET Example HRASET Enter Hop Register address Addresses 0 15 are valid valid terminator is ET _ _ Form PHHCPhase Value Terminator Example PHH59 3DG Enter Hop Mode phase Valid terminators are DG and RD Form PHR ON or OF Example Phas...

Page 62: ...HRON FOR I 1 TO 100 FOR J O TO 5 NEXTJ OUT 726 HRA J ET NEXT I END Preset and go to channel configuration mode Set Hop Ram address 0 Hop Freq 500 Hz Hop Amplitude 1 volt Set Hop Ram address 1 Hop Freq 1 kHz Hop Amplitude 2 volts Set Hop Ram address 2 Hop Freq 1 5 kHz Hop Amplitude 3 volts Set Hop Ram address 3 Hop Freq 2 kHz Hop Amplitude 4 volts Set Hop Ram address 4 Hop Freq 2 5 kHz Hop Amplitud...

Page 63: ... has been triggered Indicatesthat a DTMF Tone or Digital sequence has ended Usedwith Opt 001 only Indicatesthat a DTMF Tone or Digital sequence has started Used with Opt 001 only The reference oscillator loop on the digital A2 assembly is out o f lock An invalid code has been received on the bus or an error has been made in programming the instrument Using the Status Byte Each of the 8 bits has an...

Page 64: ...y time an interrupt occurs you can press the HELP key on the front of the HP 8904A to display a brief description of the error or use the HP IB command HP to read the error number A list of Error Codes is provided in this section to help you isolate any hardware software or operation faults that occur If you are writing a program that responds to an SRQ condition you must first enable the interrup...

Page 65: ...CT 260 PRINT Error 270 END EXAMPLE PROGRAMOF STATUS BYTE USE FOR HP 8904A HP IB addressof HP 8904A User defined mask value Send mask to HP 8904A this mask allows SRQ timebaseout of lock 81HPlBerrors When SRQ goto service routine Enable computer SRQ interrupt HPlB programmingerror to demonstratean SRQ response Routineto check status byte Get status byte Determine error type Select code 7 indicates ...

Page 66: ...out o f lock Refer to the HP 8904A Service Manual to isolate the problem The Special Function display can only be accessed from the Main Selection Level A reverse power error was detected on an output board Disconnectthe affected output from any external equipment and re enterthe key sequencethat originally resulted in the error If an error is still detected by the instrument a reverse power probl...

Page 67: ...he data again and read any error messages that result an error number other than 48 should be displayed The second error message should help to further isolate the error until it is eliminated Signal Sequence Mode Errors Time value entered is out of range On and Off Time values cannot both be zero Amplitude value entered is out of range Frequency value entered is out of range Tone Number entered i...

Page 68: ...is Waveform Phasemodulation is presently active therefore Phase Hop cannot be changed The present Channel A waveform cannot be used at the present frequency setting of ChannelA if the Frequency Hop Ram is disabled Miscellaneous Errors The amplitude value selected is greater than the permittedmaximum The amplitude value selected resultsin a sum which is greater than the maximum permittedvalue The f...

Page 69: ...However any phase offset that has been specified is maintained All signals with a phase setting of zero 0 are reset to a zero crossingpoint in there respective waveforms regardless of the phase relationship that existed before the change occurred Enabling this specialfunction prevents the phase reset from occurring As the frequency or destination of one channel is changed the phase of the other ch...

Page 70: ...therebyreducingthe amplitudeswitchingtime to about 2 msec but allowing any switching transients that may be present to be output in the process Special 5 Floating Outputs on Power Up You can pre define whether the output s will be floating or chassis ground referenced when the instrument is pmered up Special 6 Enable Synchronous mode Available only with Option 005 Phase Synchronization See section...

Page 71: ...ero because the frequency relationship is nearly integral 72 005 Since this frequencyis harmonically related to the clock frequency the fastedges almost alwayscoincide with the output clock of the DAC All sampled synthesizers have this jitter For the HP 8904A all waveforms have this jitter except sinewaves of course DC and noise do not either The sinewave has no instantaneous transitions and there...

Page 72: ...his means that for each 6 dB wide window there are 2048 possible fine amplitude steps 212 4096 2048 While this arrangement yields a constant number of steps per 6 dB attenuator range the resolution in volts is twice as fine for every 6 dB attenuator used For example the actual resolution in the 10 to 5 01 V range is lOV SV neztfullscclle ange 5 2040steps 2040 Resolution 2 441 mV For the 5 to 2 51 ...

Page 73: ...ling frequency and its harmonics In the HP 8904A there are two filters used for this purpose an elliptic filter and a gaussian filter 0 The elliptic filter has excellent flatness with a 3 dB cutoff at 670 kHz and a very steep The gaussian filter has excellent group delay linearity but has a gentle cutoff slope and a cutoff slope 3 dB cutoff at 200 kHz Filter Selection In normal operation the HP890...

Page 74: ...ays have 0 1 degrees of phase resolution at all frequencies However the ramp and squarewave waveforms can have reduced phase resolution at certain frequencies These special frequenciesare EXACT sub multiples of the digital to analog converter clock rate of 1 6777216 MHz These are the frequencies where the squarewave has nojitter and the ramp waveform has greatly reducedjitter Referto the Jitter in...

Page 75: ... With special function 4 active amplitude switches within a given analog attenuator range will be phase continuous see Amplitude Resolution for details on these ranges When an attenuator range is crossed however there will be a jump up or down in level depending on which attenuator switches first The second method is to use the capabilitiesof Option 003 Option 003 gives the HP 8904A the ability to...

Page 76: ... You can always return the instrument to the Main Menu level by using the SHIFT and MAIN keys Menu Changes When Using HP IB Control If you are using remote control via the HP IB the menu on the display only reflects the mode the instrument is in and does not show the values for each field being changed For example if the controller tells the instrument to go to mode 0 by using the command GMO the ...

Page 77: ...Deg W F O R M Sine DESTN Out1 f l ROM Checks f 3 RAMCheck f 4 E x i t f 2 LCD Check I I 5 15 not yet I defined o f f a 0 OPT001 0 0 a 0 I ch B FREQ 1000 0 HZ AMPTO ch C FREQ 1000 0 HZ AMPTD ch D FREQ 1800 0 HZ AMPTO PHASE 0 0 Deg W F O R M Sine DESTN Off I f l Seq Index 1 0123456789RBCDEFl f 2 Seq End 250 4 E d i t Sequence I f l Seq Index 1 C01234567B9ABCDXXl I f 2 Seq End 250 fi E d i t Sequence...

Page 78: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 79: ...gnals Learn how to output a sequence of Tone Dual Tone Multi Frequency DTMF or Digital signals Option 02 4 Output TwoSignals at Once Learn how to operate an HP 8904A equipped with Dual Output Ports Option 03 5 Hop the Output Signal Learn how to ho the frequency amplitude and phase of the output signaP Appendixes A Installation B Help Messages C HP IBCodes lndex Artisan Technology Group Quality Ins...

Page 80: ...04A you will want to refer to the installation suggestions provided in Appendix A What s in this Guide This Operation and Application Guide begins by helping you determine which operating capabilities your HP 8904A has been equipped with Note It is essential that you know which operating capabilities your HP 8904A has been equipped with in order to use this guide effective1y The guide then helps y...

Page 81: ... are pressed the HP 8904A briefly displays its Preset display This display lists the Configuration Options that your HP 8904A has been equipped with For example the Preset display shown below indicates that all three Configuration Options 01 02 and 03 are present Note w h i c h options if any are listed in the Preset display on your instrument Once you have determined w h i c h options your HP 890...

Page 82: ...nt equipped with all three Configuration Options would have the following capabilities Four Channels Option 01 0 Signal Sequence Modes Option 01 Two Output Ports Option 02 0 One Channel of the four that could be hopped Option 03 Note that each Output Port provides both a High and a Low connection The operation of these connections will be demonstrated further later in this chapter Artisan Technolo...

Page 83: ... Option 03 Only Then read thro Chapter 1 Chapters 1 2 and 3 Chapters 1 2 3 and 4 Chapters 1 2 3 4 and 5 Chapters 1 2 3 and 5 Chapters 1 and 4 Chapters 1 4 and 5 Chapters 1 and 5 You should complete the operating demonstrations contained in this chapter before referring to the remaining chapters no matter which Configuration Options you have The operating information provided in this chapter is imp...

Page 84: ...HP 8904A Settings Turn on the HP 8904A s Special Functions Set up Your EgUjpmenf Connect your HP 8904A to an oscilloscope as shown above Adjust Your Oscilloscope DiAplay Channel A Coupling dc High Impedance Time Division 2 ms Trigger Channel A Volts Division 0 5V Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 85: ...ress the 1 key and then the OFF key Note that the FLOAT annunciator LED for OUTPUT 1is now off You have configured the HP 8904A s circuit ground to be referenced to chassis ground at OUTPUT 1 The chassis ground output configuration is used in this demonstration to minimize the set up requirements You will learn more about the HP 8904A s chassis and floating ground configurations later in this demo...

Page 86: ...gure 1 1 shows how to access the Channel Configuration Mode Channel A Configuration display 2 Press the NEXT key to advance the display ahead to the t d Channel Lunfigurat ion tlodr XX Press NEi T tRST keys f 4 E x i t t 1 B m ih H FREQ 1BBB B HZ HHPTD 148 y rl PHHSE b3 B deg blFORM Sine DESTH Out1 Figure 1 1 Accessing the Channel Configuration Mode is as Simple as Pressing a Key Artisan Technolog...

Page 87: ... enter a wrong digit simply press the keyto backspace and then re enter the correct digit 4 Enter 120 Hz If your HP 8904A is operating on a 50 Hz power line rather than 60 Hz enter 100 Hz for this demonstration That s all you have to do to enter the frequency you desire for your output signal Table 1 3 shows the frequency ranges provided by your HP 8904A Table 1 3 The Output Frequency Ranges of th...

Page 88: ...sire 0 to 1OV Note The amplitude level shown in the HP 8904A s display reflects the output signal level in peak volts when it is terminated by a high impedance input 50 kQ and peak to peak volts when it is terminated by a 50 R input Throughout this demonstration the oscilloscope is assumed to have a high impedance input a High Impedance Termination b 50R Termination Figure 1 3 Output Amplitude pro...

Page 89: ... that the sine waveform is the HP 8904As default selection 7 Press the ramp key the t triangle key the L square key the NOISE key and then the dc key to output each of the five additional waveforms 8 Now press the key to select the square wave output Ramp l l f l l l l I l l t D I l t l t l l l S I I I I Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 90: ...Now press the 0 key Notice that the displayed waveform shifts each time the phase of Channel A is incremented This is due to the resulting change in Channel As phase relationship with the line voltage signal that is being used to trigger the oscilloscope Press the 0 key and the deg key to return the HP 8904A sphase setting to 0 0 degrees Set the oscilloscope to trigger on Channel A again rather th...

Page 91: ...t Port Figure 1 5 shows the HP 8904A s Output Port LEDs These LEDs inform you of the current configuration statps of each Output Port THESE LEDs LET YOU KNOW WHETHER OUTPUT PORTS 1 AND 2 ARE CONFIGURED FOR FLOATING GROUND LED ON OR CHASSIS GROUND LED OFF THE HP 18 LEDs LET YOU KNOW THE CURRENT STATUS OF THE HP 8904AS REMOTE OPERATING CAPABILITIES WHETHER OUTPUT PORTS 1 AND 2 ARE TURNED ON LED ON O...

Page 92: ... the OFF key You have turned o f f Output 1 Note that the ON LED for OUTPUT 1is no longer lit and that the output signal no longer appears on the oscilloscope display You have disconnected the output signal from the Output Port Note The HP 8904A maintains a constant 50 ohm impedance at its output whether the output is on or off OUTPUT SIGNAL Figure 7 6 The Output Signal is Switched Away from the O...

Page 93: ...UT key to access the oscilloscope to SV and the time division setting to 20 ps Output Control display Turn On the Output 8 Enter 1 and then press the ON key Note that the ON LED for OUTPUT 1 is now lit Turning the HP 8904A s Output Port o f f can be useful when you wish to make changes to the output signal but you do not want the intermediate transitions present at the output Artisan Technology Gr...

Page 94: ... choices sine ramp triangle square noise and dc Output refers to an HP 8904A Output Port The standard HP 8904A configuration provides 1 Output Port Option 02 adds a second Output Port CHANNEL A OUTPUT 1 Figure 1 7 The Standard HP 8904A Configuration Provides One Channel and One Output Port Table 1 4 lists the channels and output ports provided by the Configuration Options Table 1 4 Channel and Out...

Page 95: ...m of the chassis ground configuration FLOATING GROUND Figure 1 8 Circuit Ground is Connected to Chassis Ground when the FLOAT LED is Off Floating Ground When the FLOAT LED is on for Ouput 1or 2 the HP 8904A s circuit ground is not referenced to chassis ground at that output Floating ground is the HP 8904As Preset or default output configuration Artisan Technology Group Quality Instrumentation Guar...

Page 96: ... to an input device Caution The voltage differential between the HP 8904A s floating ground level and its chassis ground level should not exceed a maximum of 10 Vpk a Using two BNC cables provides maximum shielding where High and Low inputs are also available b Using an adapter allows the High and Low Output Ports to be connected to a single input port Figure 7 9 Cable Connections for the Floating...

Page 97: ...ccess the Save Register display 2 Press the 1 key and then the ENTER key You have stored all o f the HP 8904A scurrent settings in Save Register 1 The HP 8904A provides 12 Save Registers 0 11 Now Return to the Main Selection Level 3 Press the blue SHIFT key and the MAIN key The MAIN key returns you to the HP 8904As Main Selection Level display Artisan Technology Group Quality Instrumentation Guara...

Page 98: ... it or any other operating mode all parameters are reset to their default settings Recall Your Settings 6 Press the blue SHIFT key and then the RECALL key to access the 7 Press the 1 key and then press the ENTER key The HP 8904A is now returned to the same operating state it was in when you set up Save Register 1 Recall Register display Remember When you Recall a Save Register the HP 8904A returns...

Page 99: ...ress the ON key You have turned on Special Function 0 Notice Status now equals On in the display to let you know that Special Function 0 is now turned on Special Function 0 enables the HP 8904A to power up to the operating settings that existed when power was turned off 4 Press the NEXT key to step through the other Special Functions Note that the Special number in the display increments each time...

Page 100: ...dition including the Special Function settings and Floating ground 2 Press the blue SHIFT key the RECALL key the 1 key and then press the ENTER key Note that the HP 8904A s Save Register settings are retained whether you use the MAIN key or the PRESET key or even if the instrument is powered down 3 Switch the HP 8904A s power OFF for a few seconds and then back ON Since Special Function 0 was turn...

Page 101: ... you can rely on the HI 8904A to provide the flexibility and accuracy that you need 0 Floating ground LEDon is the default output settin 0 The output impedance is 5Ofl whether the O u t p u t Port is turned on o r off 0 The displayed amplitude value represents peak volts when the HP 8904A is connected to a high impedance input or peak togeakvdts when it is connectedto a 5 0 n input 0 The Noise fun...

Page 102: ...Chapter Guide for the Various ConfigurationOptions Option 01 Only Options 01 and 02 Options 01 02 and 03 Options 01 and 03 Option 02 Oniy Options 02 and 03 Option 03 Only Chapters 2 and 3 Chapters 2 3then 4 Chapters 2 3 4 then 5 Chapters 2 3 then 5 Chapter 4 Chapters 4 and 5 Chapter 5 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 103: ... 01 simply step through the following demonstrations to learn how to Modulate Channel A Set Up Simultaneous Modulation Sum the Modulation Signals 0 Sum the Output Signals 0 Set Up Some Multi Channel Applications Set Up Your Equipment Connect your HP 8904A to the oscilloscope as shown above Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 104: ...n the FLOAT key 3 Press the 1 key and then the OFF key to reference the HP 8904A s circuit ground to chassis ground at Output 1 Note that the FLOAT LED for Output 1is now off 4 Adjust the oscilloscope s trace position if necessary to center scale Access the Four Channels 5 Press the 11 1 h 2 t t 1E 1 C o t 1f 112 softkey 6 Press the NEXT key to access the Channel A Configuration display Artisan Te...

Page 105: ...ve returned to the Channel A Configuration display If you have an instrument that is equiped with Hop Mode Option 03 the two Hop Mode displays will appear following the Channel D display as you press the NEXT key Chapter 5 contains information to help you learn about Hop Mode operation Figure 2 1 All Four Channels Can Be Accessed After You Have Pressed the f l Channel Config Softkey Artisan Techno...

Page 106: ...with one other channel Set Up the Carrier 1 Press the FREQ key and enter 20 kHz as the Channel A frequency Note If you enter a wrong digit simply press the key to backspace and then re enter the correct digit 2 Press the AMPTD key and enter 2 5V The 20 kHz 2 5 Vpk Channel A signal should now appear on the oscilloscope display I I I I 1 I i I I I Artisan Technology Group Quality Instrumentation Gua...

Page 107: ... 6 Press the AMPTD key and enter 90 The amplitude modulated sinewave should now appear on your oscilloscope display Adjust the oscilloscope s triggering if necessary to get a stable display f I I I 1 s I I I I 1 I I I I I v i I f I I I I f 1 3 e I I I 1 That s how easy it is to set up a modulated output signal using the HP 8904A If the output signal no longer appears on the oscilloscope and you pr...

Page 108: ...t the oscilloscope s triggering if necessary to get a stable display 8 Press the L sine key Change the Modulation Mode I i l l I l l l i I l l i P I I I I 9 Press the blue SHIFT key L e DESTN key and the DSB key You have selected Double Sideband Suppressed CarrierAM The HP 8904A provides you with five modulation modes to choose from AM FM MI DSB and Pulse Artisan Technology Group Quality Instrumen...

Page 109: ...tion is changed so remember to always specify your destination choice first then enter the amplitude setting 10 Press the AMPTD key and enter 3V Note that DSB modulation suppresses the carrier signal Channel A I I I I f I 1 I I Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 110: ... appears in the amplitude field in the display to inform you that Channel A s output amplitude has been set suppressed by the DSB modulation 12 Press the WAVEFORM key and the L and NOISE keys You can select any of these waveforms for the carrier signal i t 1 1 4 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 111: ...the 3V DSB setting Remember When the DSB modulation mode is selected the amplitude of the carrier Channel A is determined by the DSB amplitude setting As you can see the HP 8904A offers you a wide selection of camer and single source modulation possibilities Figure 2 2 illustrates these possibilities 1 OUTPUT 1 Figure 2 2 The HP 8904A Offers a Wide Selection of Modulation Possibilities Artisan Tec...

Page 112: ...me that Channel B is amplitude modulating Channel A out 1 20k 3v 0 0 deg Sine AM 1000 Hz 90 0 0 deg Sine Note If you have just completed the preceding demonstration How to Modulate Channel A your HP 8904A is correctly configured for beginning this demonstration proceed to step 1 on the next page If your HP 8904A is not configured as shown in Table 2 1 please configure Channels A and B as shown in ...

Page 113: ...ltaneously AM and pulse modulate Channel A You can simultaneously modulate Channel A with up to three different modulation signals by simply configuring Channel D to also modulate Channel A Figure 2 3 illustrates the simultaneous modulation possibilities provided by your HP 8904A CHANNEL B OUTPUT 1 Figure 2 3 The Various Simultaneous Modulation Possibilities Artisan Technology Group Quality Instru...

Page 114: ... 9 degrees modulation provided by Channel C is advanced 45 each time the 0 key is pressed 5 Press the 0 key Note on the oscilloscope that the pulse I I I I I I I I Note If you continue to press the 0 key yot will find that the HP 8904A does not respond to your 45 degree increment at 315 degrees This is because the maximum phase shift allowed by the HP 890414 is 359 9 degrees 315 45 360 Artisan Tec...

Page 115: ... 0 deg Sine AM 1000 Hz 90 0 0 deg Sine Plse 1000 Hz N A 45 0 deg Sine Note If you have just completed the preceding demonstration How to Set Up Simultaneous Modulation your HP 8904A is correctly configured for beginning this demonstration proceed to step 1 on the next page If your HP 8904A is not configured US shown in Table 2 2 please configure Channels A B and C as shown in the table before you ...

Page 116: ... 100 AM between the combined channels For example with Channel B set at 90 AM Channel C can only be set at 5 10 AM 3 Press the PHASE key the 0 key and then the deg key to set the phase to 0 0 degrees Note that your frequency and phase settings did not change when you changed the modulation mode Only the amplitude setting changes when you change the destination entry I I I I 1 i I I I I I I I I I I...

Page 117: ...annels these channels are summed and the resulting signal is used to modulate Channel A Figure 2 4 shows the modulation signal summation capability provided by the HP 8904A CHANNEL B CHANNEL C CHANNEL D CHANNEL A a OUTPUT 1 Figure 2 4 The Modulation Signals are first Summed and then used to Modulate Channel A whenever the same Modulation Mode is Selected Artisan Technology Group Quality Instrument...

Page 118: ...AM N A 10 N A Noise Note If you have just completed the preceding demonstration How to Sum the Modulation Signals your HP 8904A is correctly configured for beginning this demonstration proceed to step 1 on the next page If your HP 8904A is not configured as shown in Table 2 3 please configure Channels A B and C as shown in the table before you begin this demonstration Table2 3 Instrument Settings ...

Page 119: ... the 1 key You have configured the Channel C signal to be summed with the modulated Channel A signal 2 Press the AMPTD key and enter 1V 3 Press the WAVEFORM key and then the b I J and z keys 4 Press the L key Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 120: ...0 kHz Adjust the oscilloscope if necessary to get a stable display I I I I I I I I I I I I I I 1 I I I I I f I I I Figure 2 5 shows how channels are summed when you select the same Output Port as the destination for each channel CHANNEL A CHANNEL B I I CHANNEL C I I r v CHANNEL D OUTPUT 1 Figure 2 5 The Waveforms from each Channel can be Summed and then Output Artisan Technology Group Quality Inst...

Page 121: ...possibilities Figure 2 6 provides an overview of the HP 8904A s modulation and summation capabilities Four Channel Operation CHANNEL A MODULATION Bc4 CHANNEL B CHANNEL C CHANNEL D OUTPUT 1 figure 2 6 The Modulation and Summation Capabilities of the HP 8904A Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 122: ...tude 0 When frequency or phase modulation is being used press RESET key after entering the deviationvalue ChannelA is twice the amplitude value shown on the display setting to the DSB amplitude setting the AMPTD to set a zero phase referencefor the angle modulation 0 Two three or four channels may be summed into a single output 0 Two or three channels may be summed for modulating Channel A for exa...

Page 123: ...V N I Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 124: ... deg Sine out 1 1 kHz 2 5V 0 0 deg Sine out 1 19 kHz 0 3V 90 0 deg Sine FM Stereo Composite Signal r i I I I I I I I b f I I I t I I f I 1 f I I 1 Application Testing FM Stereo Receivers Table2 6 Instrument Settings for the FM Stereo Composite Signal Comments 1 Adjust the amplitude of Channel D to vary the pilot signal level 2 DSB is Double Sideband Suppressed Carrier AM Artisan Technology Group Q...

Page 125: ... Sine Off Application VOR VHF Omnidirectional Range Navigation Radio Testing Table2 7 Instrument Settings for the VOR CompositeSignal Comments 1 Adjust the phase of Channel C to vary the bearing The phase accuracy of the HP 8904A is typically t0 05 deg Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 126: ...dc Off Application Where required duty cycle is not 50 Table2 8 Instrument Settings for a VariableDuty Cycle Pulse TrainSignal Comments 1 Adjust the phase of Channel B to vary the duty cycle for example 90 deg 50 2 Channel C provides a variable dc reference optional Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 127: ...Testing Table2 9 lnstrument Settings for a Phase ContinuousSweep Signal Comments 1 Adjust the frequency of Channel B to vary the sweep time for example 100 Hz 10 ms sweep 2 Adjust the amplitude of Channel B to vary the sweep bandwidth from 5 kHz to 15 kHz in this example Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 128: ...d with Option 01 complete the following demonstrations to learn how to Output a Tone Sequence 0 Output a DTMF Dual Tone Multi Frequency Sequence Output a Digital Sequence 0 Set Up a Signal Sequence Application Set Up Your Equipment Connect your HP 8904A to the oscillocope as shown above Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 129: ...T key and then the PRESET key 2 Press the blue SHIFT key and then the FLOAT key 3 Press the 1 key and then the OFF key to reference the HP 8904A s circuit ground to chassis ground at Output 1 Note that the FLOAT LED for Output 1is now o f f 4 Adjust the oscilloscope s trace position if necessary to center scale Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg...

Page 130: ... Tone Sequence operation by configuring a seven step sequence using four individual tones 1 Press the NEXT key and then the 1 1 TI I t i e 5 e 11 1 4 e t i ce softkey to access the Tone Sequence Mode t HP 8914A flain Selection Level I f 1 Channel Config xx Tone Sequence Mode Press NEXT LAST keys EExrt f l Tone Number 8 FREQ 9 6 Hi I fiS Q Index 1 CQ1234567Z9HBCDEFI f 2 b AMPTD 149 YV fl Manual f2 ...

Page 131: ...O 3 Press the FREQ key and enter 1 kHz 4 Press the 14 0 f f T 1rii e softkey and enter 8 ms You have now set Tone 0 to be a 1 kHz signal with a period of 1 8 ms 1 ms on and 0 8 ms off Note that 1ms is the default On Time and Off Time setting Note The entered tones will not appear at the output or on the oscilloscope until after you have selected a Run Mode as described later in this demonstration ...

Page 132: ...hown in the display indicates which Tone Register is currently being displayed 7 Press the FREQ key and enter 2 kHz 8 Press the f2 0 t i T i riIe softkey and enter 1 5 m s Configure Tone Register 2 9 Press the 11 TI t le t J u r i i b e t softkey and then the 2 key You can access the various Tone Registers by using either the 0 or 0 keys or by directly entering the number of the register you desir...

Page 133: ...Registers shown within the brackets scroll to the left each time the 0 key is pressed allowing you to view the rest of the tones in the sequence string The Seq Index value helps you keep track of where you are as you step through the sequence string by displaying the position number of the first left most tone currently shown in the bracketed field Figure 3 3 illustrates the windowing effect of th...

Page 134: ...at when you are using the Edit function the Seq Index value increments when you press the 0 key to reflect the cursor s current position in the string 20 Press the 14 I nc et softkey and enter 2 1 0 21 Press the 14 I t 15 e t softkey again to turn off Insert and then press the 0 key once to position the cursor under the 0 Tone Register that you just entered 22 Press the blue SHIFT key and the END ...

Page 135: ...te that the value shown in brackets in the display is the number of the Tone Register currently being output The number to the left of the brackets is the sequence position number of that Tone Register 27 Press the 12 1 1 1 1 t 1 t 1t i 1 4 1 4E softkey This causes the HP 8904A to continuously cycle through your Tone Sequence Adjust the oscilloscope triggering if necessary to get a stable display ...

Page 136: ... of the settings for all of its Tone Registers as well as all of its other current operating conditions Remember When you Recall a Save Register the HP 8904A returns all of its operating modes to the same settings that existed when the Save Register was selected This completes the Tone Sequence demonstration If you wish to try setting up a different sequence order for the signals you have configur...

Page 137: ...then the 13 DTPlF Sequence softkey to access the DTMF Sequence Mode Enter the DTMF Parameters I HP 9048 tlain Selection Level f l Chournbl Config L m nI J I xx DTNF Scsuencr Nodr t X I Press NEXT LAST keys fi E x i t I I f l Tone ffufftber B f 3 Manual Uiaf I I Figure 3 4 How to Access the DTMF Sequence Mode 3 Press the NEXT key to access the DTMF Configuration display This display allows you to d...

Page 138: ... softkey to set the On Time for all of the other DTMF signalsto 44 ms as well 7 Press the blue SHIFT key and then the 14 0 f f T i rrI e softkey to also set the O f f Time for the other DTMF signals to 44 ms 8 Press the 11 T o n e 1 4 1 4 rrl klet softkey and then the C key You have accessed the C DTMF signal When in the DTMF Sequence Mode each front panel DATA key 0 through 9 A through D and and ...

Page 139: ... those described for the Tone Sequence Mode Refer to How to Output a Tone Sequence if you wish to review the operation of these functions Select the Run Mode 10 Press the NEXT key to access the Run Mode display 11 Press the AMPTD key and enter 2V The output amplitude of each DTMF signal will now be 2 Vpk 12 Press the 1 1 Pl an1 4 a 1 key and then the 0 key to step through the DTMF Sequence Artisan...

Page 140: ...9 A through D or or to output the corresponding DTMF signal for 44 ms at 2 Vpk If you wish to hear the DTMF signals Figure 3 6 shows a connection diagram for connecting an external speaker to output 1 Figure 3 6 Connection Diagram for Connecting an External Speaker to Output I Remember To use the Manual Dial function you must first specify an output amplitude in the Run Mode display as described i...

Page 141: ...MAIN key 2 Press the NEXT key twice and then the 11 I i 3i t a 1 Se1 3 1 4 e t i c e softkey to access the Digital Sequence Mode Enfer the Bif Parameters t HP 89Q4A Main Selectitn Level f 1 Channel C m f ig P Figure 3 7 How to Access the Digital Sequence Mode 3 Press the NEXT key to access the Digital Configuration display This display allows you to specify the On Level Off Level and Period for yo...

Page 142: ...n Level and the Off Level 4 Press the 12 1 5t 1 L e 1 l softkey and enter 4V 5 Press the 14 0 f f Le 8 softkey and enter 0 5V Note on the oscilloscope display that the HP 8904As output signal level is now set to the O f f Level that you entered 0 5V Enter the Period 6 Press the f3 Pet i od softkey and enter 1 ms The period of each 1 Bit and each 0 Bit in your sequence will now be 1 ms 1 ms 1 ms A ...

Page 143: ...O Off 9 Press 10 Press 11 Press last 1 kev i r Select the Run Mode 12 Press the 14 Ed i t 5 q 1 4 e t 1ce softkey the 1 and 0 keys to configure a bit sequence of 101101001 the U key once to position the cursor underneath the you entered and press the blue SHIFT key and the END the NEXT key to access the Run Mode display Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www ...

Page 144: ...llustrates the HP 8904As Signal Sequencing capabilities Sequence Modes 1 2 3 Enter the parameters for each signal you wish to include in your sequence Specify the order in which you wish for the signals to be output Select the method you desire for outputting the sequence Manual Step Single Sequence or Continuous Cycle Figure 3 9 The HP 8904A s Signal Sequence Capabilities Artisan Technology Group...

Page 145: ...e for Output Signal 0 The specified Tones or DTMF signals will not appear at the 0 The Signal Sequence Modes can only be output at Output output 140 pV until an amplitude setting has been entered Port 1 Table 3 3 Signal Sequence Specifications Sequence Mode Tone DTMF ses Mode Digital Specifications Number of Sequence On ime 1 off riQ hequencieS M g t t r 1 to 250 Tones 1 to 250 DTMF signals 16 16 ...

Page 146: ...ettings for Phase ContinuousSweep 0 1 2 3 4 5 6 7 8 9 A B C D E F Comments 100 200 300 500 700 900 l k 2k 3k 4k 5k 6k 7k 8k 9k 1O k 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 The Tone Sequence is 0 1 2 3 4 5 6 7 8 9 A B C D E F 2 The Run Mode can be Single or Continuous 5V Artisan Technology Group Quality Instru...

Page 147: ...he following 0 A General Description of the added capabilities available with this option 0 A description of the Electrical Connections unique to Option 005 equipped instruments 0 Step by step Detailed Operating Instructions that explain instrument connections and settings for phase synchronizing two or more HP 8904As 0 A list of HP IB Operation codes specific to Option 005 equipped HP 8904As and ...

Page 148: ...re used to interconnect the instruments for phase synchronization SYNC CLOCK OUTPUT This connection provides an output for the internal clock signal used for latching internal waveform and amplitude data into the analog to digital converters It provides the Master synchronizing signal for connecting two or more HP 8904As for phase synchronization This signal is not used when the instrument is conf...

Page 149: ...to provide the necessary impedance match and signal distribution to each instrument Terminate any unused power splitter outputs with a 50R load Recommended power splitters are listed in the specifications at the end of this supplement Cable Length Since phase delay is directly proportional to conductor length the length of all cables should be the same when they share a common signal from the Mast...

Page 150: ...apabilities Configure as MASTER Controller defines whether the instrument will be a Master or Slave when using Option 005 capabilities Only one instrument may be configured to be the Master controller To access these specials from the Main Selection Level menu press these keys SHIFT SPECIAL 6 ENTER Press NEXT to access Special 7 The following figure illustrates these steps SHIFT SPECIAL 6 ENTER NE...

Page 151: ...s equipped with Option 005 It utilizes one output per instrument to provide three separate phase synchronized signals If you are not familiar with the Channel Configuration operations needed to output a signal refer to the HP 89044 Multifunction Synthesizer Basic Operation and Application guide for detailed operating instructions 1 Connect the necessary power splitters and cables use figure 3 1 as...

Page 152: ... both of the Slave instruments and then turn the power off 9 Turn both Slave instruments back on and recall the saved settings At this point the zero crossings of the three signals should not align 10 Press SHIFT RESET on the Master controller The zero crossings of all three signals should align as shown in the illustration below HP8904A Outputs 2 If the zero crossings of the signals are not align...

Page 153: ...The ASCII value of special function 7 is 128 Programming Considerations Always interconnect the instruments prior to enabling these special functions An error message is displayed if the proper clock and synchronization signals are not present when these special functions are enabled Every time the Set Function SF command is used to set the special functions the previous special function settings ...

Page 154: ...us mode and enable this instrument as the MASTER controller ASCII equiv bit 788 Enable synchronous mode only ASCII equiv bit 7 Read special function settings from HP 8904A 1 Read special function setting from HP 8904A 2 Set MASTER CHAN A 1 Volt Sine Wave Set Slave CHAN A 1 Volt Sine Wave Phase reset the MASTER Controller to phase synchronize both instruments Specifications Unit to UnitPhase Accura...

Page 155: ...mbination with Option 004 Rear Panel Outputs A second output can be installed to provide a 50Sl output by ordering Option 002 The amplitude displayed on the instrument s front panel assumes an external load of 600R Connecting a high impedance load results in an amplitude of up to twice that indicated for Output 1 The Option 006 output is specified for sinewaves only and for the frequency range of ...

Page 156: ...0 mV rms into a 6000 load 0 15 dB 0 15 dB 30 HZto 20 kHz 0 15 dB 0 75 dB 30 HZto 100 H Z Spectral Purity Sine Wave Only THD N including spurs amplitude 140 mV rms to 10 V rms into a 6000 load 46 dB O 5 30 HZto 300 Hz 30 kHZ BW amplitude 1V rms into a 6000 load 60 dBc 0 10 300 Hz to 7 5 kHz 30 kHz BW 63 dBC 0 07 7 5 kHz to 20 kHz 80 kHz BW 55 dBc O l8 20 kHz to 100 kHz 750 kHz BW Supplemental Chara...

Page 157: ...g topics e General Description e Detailed Operation HP IB Operation General Description Hop RAM Sequence mode is a combination of the Digital Sequence mode of Option 001 and the Hop RAM mode of Option 003 Unlike the Option 003 Hop RAM function that requires an external timing signal Hop RAM Sequence mode uses an adjustable internal timing signal To enable the Hop RAM Sequence mode from the Main Se...

Page 158: ... number system hexadecimal octal or binary used when displaying and editing the sequence Press f l to select the edit function and then press it again to alter the efibase f2 Seq Output Base The sequence output base determines how the sequence data will be interpreted The two number systems available are hexadecimal and binary In the hexadecimal mode each number in the sequence corresponds to one ...

Page 159: ...s where a sequence entry Zrelative to the entire sequence You can use t h i sfunction to jump to any place in the sequence for editing purposes In the menu above the sequence index is 1 This indicates that the number 0 is the first number in the sequence If the number 15 was entered for the sequence index the displayed sequence would change so that the 15th character in the sequence E hex would be...

Page 160: ...AM Sequence menu f3 Burst The burst function causes a sequence to be output from 1 127 times depending on the burst length setting The default is 1 f4 Stop This stops the current sequence during its execution Seq FREQ The sequence frequency determines the rate at which the sequence is executed For instance if the sequence frequency is set to 1 Hz each setting in the sequence is output for 1second ...

Page 161: ...hex output base 1 3000 for binary output base then ET Value must be less than the sequence end value MANP 1 ET or MANP3000ET Mnemonic RWF Form Example RWF SI or RWFNS Mnemonic MANP Form Function Example Mnemonic SEQP Form Example SEQP 37 ET Function Set sequence end Mnemonic SEQE Form m Function Set sequence pointer SEQP followed by value then ET Value has same restrictions as MANP function SEQE f...

Page 162: ...TPUT Hpib RFQ 600 Hz 190 OUTPUT Hpib RUNS 200 END Go to HOP RAM SEQUENCE MODE Set HOP RAM address to 0 Set amplitude for address 0 to 5 volts Set HOP RAM address to 1 Set amplitude for address 1 to 2 volts Set EDIT BASE to hex OUTPUT BASE to bin Set waveform to be hopped to DC Set burst length to 4 Set sequence pointer to beginning Write the first 250 characters into the sequence string in hexadec...

Page 163: ...yed Press the f l key to access the first IevelTM Stereo Composite Generator menu Use the NEXT and LAST keys to access the other FM Stereo menus Detailed Operation You can return the instrument to the Main Selection Level at any time by pressing the SHIFT MAIN keys Second Menu Tone Frequency This tone simulates the audio frequency information being broadcast Change the frequency by pressing the FR...

Page 164: ... The pilot signal amplitude is entered as a percentage of the total composite signal amplitude Change the amplitude by pressing the AMPTD key and entering the desired amplitude in percent 0 0 to 100 0 f4 Pilot Press the f4 key to enable or disable the stereo pilot signal Same function as inprevious menu PHASE The pilot tone phase can be adjusted from O Ooto359 9 relative to the rest of the composi...

Page 165: ...e level is achieved at the maximum tone frequency allowed 15 kHz The rolloff of the composite level for frequencies 15 kHz follows the transfer function of the specified preemphasis time contant 7 pre emphasis setting 1 f3dB 2 Change the pre emphasis by pressing the f2 key The following pre emphasis settings are available 0 o f f a 25ps 5Ops 0 75ps Artisan Technology Group Quality Instrumentation ...

Page 166: ...uency Valid terminatorsare HZ andk KZ Form TF freq value terminator Example TF1 O W Set Tone Frequency Valid terminators are HZ and KZ Set Carrier Frequency Valid terminators are HZ and KZ Form PL level value terminator Example PL10 0 PC Set Pilot Level Valid terminators are YOand PC Form PPCphase value terminator Example PP59 3DG Set Pilot Phase Valid terminators are DG and RD Form PL level value...

Page 167: ...Data 0000000 0 0000000 0 0000000 0 0000000 0 0000000 0 0000000 0 00 000000 00 000000 0000 0 0000 0 0000 0 0000 0 0 0 0 implied Units Hz Hz Hz Hz Hz Hz Volts Volts Degrees Degrees Percent Percent Value Same as input Value Value Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 168: ...lationship of the Signals at each Output Port Set Up Some Applications that use the Dual Output Ports Modulate at One Output Port and Sum at the Other only for instruments that are also equipped with four channels Option 01 set Up Your Equipment Connect your HP 8904A to the oscilloscope as shown above Note A dual trace oscilloscope is required to complete the demonstrations in this chapter Artisan...

Page 169: ...lay HP 8904A s circuit ground to chassis ground at Output 1 3 Press the 1 key and then the OFF key to reference the 4 Press the blue SHIFT key and then the FLOAT key again 5 Press the 2 key and then the OFF key to reference the HP 8 9 0 4 A s circuit ground to chassis ground at Output 2 as well Note that the FLOAT LEDs for Outputs 1and 2 are now Off 6 Adjust the Channel A trace on the oscilloscope...

Page 170: ...n generator each Port CHANNEL A CHANNEL B Figure 4 1 Channel and Output Configuration for the Option 02 Dual Output Ports 1 Press the 11 5 1 1a t i t i e 1 Co 1 1 f 1g I softkey to access the Channel Configuration Mode I P 83848 Plain Selection Level i I Figure 4 2 How to Access Option 02 Dual Output Ports Operation Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www arti...

Page 171: ...o output a square wave from Channel A at Output Port 1 5 Press the NEXT key to access the Channel B Configuration display Notice that the destination for Channel B is already set to output 2 6 Press the AMPTD key and enter 1V 7 Press the WAVEFORM key and then the key to select a ramp waveform Two signals should now appear on the oscilloscope display a square wave and a ramp wave Artisan Technology...

Page 172: ...nnel B up in 45 degree steps You should be able to see the phase of the Channel B signal shift on the oscilloscope relative to the Channel A signal each time you press the 0 key If you continue to press the 0 key you will find that the HP 8904A does not respond to your 45 degree increment at 315 degrees This is because the maximum phase shift allowed by the HP 8904A is 359 9 degrees Artisan Techno...

Page 173: ...tereo audio cassette player tape deck heads Table4 7 Instrument Settings for the Stereo Phase lest Signal Comments 1 Connect Output Port 1to the left input on the stereo and Output Port 2 to the right input 2 Connect the stereo s left and right outputs to the oscilloscope 3 Set the oscilloscope for A vs B The pattern shown above represents the desired zero phase difference between the stereo s cha...

Page 174: ...deg Square A out 1 Comments 1 Adjust Channel Bs phase to vary the phase differential The HP 8904A provides 0 1 degree phase increments If your HP 8904A is equiped with Option 02 only you have completed the operating demonstrations provided in this guide for your instrument The following demonstration beginning on the next page is for instruments that are also equiped with four channels Option 01 A...

Page 175: ... Port 1 You will then sum Channels C and D and output the resulting signal at Output Port 2 and Sum Off Note This demonstration assumes that the parameters for Channels A and B are configured as described in the previous demonstration How to Output a Signal at Each Port If they are not please configure the Channels as shown in Table 4 3 before you begin this demonstration Table 4 3 Instrument Sett...

Page 176: ... key the PHASE key and enter 0 degrees for Channel B 4 Press the WAVEFORM key and the L key 5 Press the blue SHIFT key the DESTN key and then the AM key 6 Press the AMPTD key and enter 100 Channel B is now configured to amplitude modulate Channel A Adjust the oscilloscope if necessary to get a stable display Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg co...

Page 177: ...ter 1V Channel D 12 Press the NEXT key to access the Channel D Configuration display 13 Press the blue SHIFT key the DESTN key and then the 2 key to route Channel D to Output Port 2 1 4 Press the AMPTD key and enter 1V The HP 8904A is now configured to sum Channels C and D and output the resulting waveform at Output Port 2 1 I I I I I I Figure 4 3 Two 20 kHz Square Wave Signals One Modulated by 1 ...

Page 178: ...nals Square out 1 20 kHz 1v 0 0 deg AM 1 kHz 100 0 0 deg Sine out 2 20 kHz 1v 0 0 deg Square out 2 1 kHz 1v 0 0 deg Sine Table4 4 InstrumentSettings for the Four Channel Dual Output Forts Demonstration Remember Only Channel A can be modulated by the other channels and each channel can have only one destination at a time Output Port 2 Output Port 2 or as a modulation source to Channel A Artisan Tec...

Page 179: ...er About Dual Output Ports Operation CHANNEL A A H n n n 1 CHANNEL B MODULATION 1 y 1 y 11 y I I I CHANNEL C I I I CHANNEL D I I I i OUTPUT 1 OUTPUT 2 DESTINATION CONTROL Figure 4 4 Channel and Output Configuration for HP 8904A s Equipped with Four Channels and Dual Output Ports Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 180: ... Chapter 2 for Four Channel Key Points About ODeration Table 4 5 contains operating considerations you should keep in mind as you configure the HI 8904A s four channels for dual output operation Table4 5 Operating Considerations for Dual Output Port Operation using Four Channels Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 181: ...is equipped with Option 03 this Hop Mode demonstration will teach you how to Access Hop Mode Operation Configure Channel A for Hopping its Frequency Amplitude and Phase Settings Fast Hop Channel A Set Up Your Equipment Connect your HP 8904A to the oscilloscope as shown above Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 182: ...and the PRESET key 2 Press the blue SHIFT key and then the FLOAT key 3 Press the 1 key and then the OFF key to reference the HP 8904A s circuit ground to chassis ground at Output 1 Note that the FLOAT LED for Output 1is now o f f 4 Adjust the oscilloscope trace if necessary to position the trace at center scale Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg...

Page 183: ...ill output Channel A when the Hop Mode is turned on The HP 8904A will allow you to hop the frequency amplitude and or phase settings of the Channel A signal I I f l Channel Config f 1 p x T J n u l m 8 ch A FREU 1Q Q 8 tiz AMPTO 148 VV PHRSE 0 8 d4g WFORM Sine OESTW frat1 If l HOP R a Rdrs B FREU x J L T U Figure 5 1 How to Access Hop Mode Operation Artisan Technology Group Quality Instrumentation...

Page 184: ...r 1V The 1kHz 1Vpk Channel A signal should now appear on your oscilloscope Enter the Hop Parameters Note If your HP 8904A is equipped with four channels the Parameter Entry displays for Channels B C and D will precede the Hop Configuration display 2 Press the NEXT key until the Hop Configuration display appears This display allows you to enter the settings you wish to have Channel A hop to The HP ...

Page 185: ... 5 softkey the 2 key and then the ENTER key You can access the various Hop Registers by using either the f or 0 keys or by entering the number of the desired register directly 9 Press the FREQ key and enter 15 kHz 10 Press the AMPTD key and enter 4V Hop Register 3 1 1 Press the 11 H CI p E 3iii RIAt 5 softkey and the 0 key to access Hop Register 3 12 Enter a frequency of 20 kHz and an amplitude of...

Page 186: ...hen the ENTER key to return to the first Hop Register 14 Press the NEXT key to access the Hop Parameter Selection display This display allows you to specify which of Channel A s settings you wish to hop 15 Press the f2 8 T i F t IT F softkey and then the ON key You have configured the HP 8904A to hop Channel A s amplitude setting The amplitude of the signal on your oscilloscope should increase to ...

Page 187: ...ied in the selected Hop Register each time the 0 or U keys are pressed 19 Now press the 2 key and then the ENTER key You can also select the Hop Registers directly in whatever order you wish 20 Press the LAST key until the Channel A Configuration display appears The HP 8904A display informs you that the frequency and amplitude settings for Channel A are now being set by the Hop Registers Note Alth...

Page 188: ... The following steps describe how to use the DIGITAL PORT for fast hopping Channel A 1 Press the NEXT key to return to the Hop Parameter Selection display Enable the DIGITAL PORT 2 To enable the DIGITAL PORT press the 1 1 D i13i t a 1 F Q t t softkey and then the ON key The HP 8904A is now ready to receive Hop Register addresses via its rear panel DIGITAL PORT Ch C Ch B Polarity Polarity Ch A Trig...

Page 189: ...timing source can be used in place of the Channel D signal to increase the hop rate 5v DIG 17AL PORT Figure 5 3 Example Address Selection Circuit for Fast Hopping the HP 8904A Table 5 2 lnstrument Settings for the Fast Hopping Example I I I I I The following BASIC program can be used to set up the HP 8904A for this example over its HP IB Artisan Technology Group Quality Instrumentation Guaranteed ...

Page 190: ...ameters into each Hop Register 0 through 15 2 Specify which of Channel A s settings you wish to hop 3 Select the Hop Registers by entering each Hop Register address via the front panel keys or the rear panel DIGITAL PORT Figure 5 4 provides an overview of the HP 8904A s Hop Mode capabilities CHANNEL A DIGITAL PORT REAR PANEL v OUTPUT 1 Figure 5 4 Simplified Block Diagram of the Hop Mode Configurat...

Page 191: ...t be hopped when AM or DSB modulation is selected and the phase setting cannot be hopped when QM is selected 0 Hop Mode cannot be used in conjunctionwith any of the three Signal Sequence Modes provided by Option 01 0 If your HP 8904A has Dual Output Ports Option 02 Channel A can be hopped at one Output Port while another signal is being output at the other output port 0 The HP 8904A can be fast ho...

Page 192: ...or 220 to 240 Vac 3 10 at 48 to 66 Hz Power consumption is 80 VA maximum If you need further information about the power requirements for your instrument refer to the HP 8904A Operation and Calibration Manual Warning This is a Safety Class I product i e provided with a protective earth terminal An uninterruptible safety earth ground must be provided from the Mains power source to the product input...

Page 193: ...lp Messages 1 of 4 0 1 2 3 4 10 11 12 Description There is no new message A key was selected without specifying what the data was related to The key selected does not correspond to the function selected Invalid HP IB address entry Only 00 30 decimal are valid entries The 0 or 0 key cannot be used with this function The instrument cannot access the output board that connects to the OUTPUTS 1 connec...

Page 194: ... selected An operation was directed to an output board which does not exist There are no setable modes or functions at this instrument level For example in Hop Mode Operation the Hop Parameter display lists only four keys that will perform a function in this mode f f2 f3 and f4 Any other key such as AMPTD has no meaning in this mode and will result in this error Channel Configuration Errors Instru...

Page 195: ... number entered is not valid in the Sequence Base selected Either the Binary Octal or Hexadecimalbase numbering system is used to specify the Sequence Index and Sequence End For example you may not use the character 9 when you have previously specifiedthe Octal base since this number does not exist in that numbering system Command not permitted in this mode Command not available in present window ...

Page 196: ...annot be used at the present frequency setting of Channel A if the Frequency Hop Ram is disabled Miscellaneous Errors The amplitude value selected is greater than the permitted maximum The amplitude value selected results in a sum which is greater than the maximum permitted value The frequency value selected is greater than the maximum permitted value When the Amplitude Hop Ram was disabled the la...

Page 197: ...nnel Amplitude Value Terminator Example APA1V L Set amplitude of a channel Valid terminators for amplitude are VL MV and UV Backlight On Backlight Off Beep Form EM Exit Mode Exit Mode needs no data Form FS Output Number Filter Example FS1AU Output Board Filter Select Designate Output Port 1 or 2 if the instrument is equipped with Option 02 followed by no space the desired filter Eliptic Sharp Cuto...

Page 198: ... the requesting controller in the following format HP8904A Opts 01 02 031 Firmware Revision XXXXXa Serial No XXXXX Form Parameter lS Value Example APAlVL Increment set Used for any parameter that can be modified by the Up and Down commands Increment Down Examples PHAUP UPDNDN DN UP and DN can be used for settings which have an associated increment set value They can be prefixed by a specific funct...

Page 199: ...id data values for Recall are 0 1 1 I I RP Reset reverse power protection SV Form SV Register Example SV1 Save Valid data values for Save are 0 1 1 RM Form RM Read Service Request Mask The present value of the SRQ mask is returned 000 191 SM Form SM Data Value Examples SM128 SMO Set Service Request Mask Valid data 0 255 SF Form SF Data Value Examples SF4 SF12763 Set or Reset Special Functions The ...

Page 200: ...veform Example WFATR Set waveform of a channel Valid data values for waveform are SI Sine RA Ramp TR Triangle SQ Square NS Noise DC dc I HP SERIES 200 300 BASIC language programming example for the standard HP 8904A MULTIFUNCTION SYNTHESIZER I OUTPUT 7 2 6 PS Preset HP 8904pI OUTPUT 726 GM0 I Goto channel configuration mode OUTPUT 726 FC1OF Turn output 1 float off OUTPUT 726 FRA 1 000 1HZ Set chan...

Page 201: ...Enter Tone or DTMF amplitude Amplitude terminators are VL MV and UV APH Form APH Amplitude Value Terminator DAPH Digital Sequence On Level DAPL Digital Sequence Off Level Form DAPH Amplitude Terminator Digital Sequence Mode amplitude terminators are VL MV and UV Examples DAPH4VL DAPL 1VL BSB BSO BSH Select Binary Base Select Octal Base Select Hexadecimal Base STOF STON SBP Form STOF Time Value Ter...

Page 202: ...inator is ET Form SEQP lndex Value ET Example SEQP37ET Set Sequence Index Valid terminator is ET Form WSQCData String Terminator Examples Tone Sequence WSQO1123456789ABCDEF DTMF Sequence WSQO123456789ABCD Digital Sequence Binary Base WSQ0101010101010101 Digital Sequence Octal Base WSQO123456701234567 Digital Sequence Hex Base WSQO123456789ABCDEF Write sequence string Entry string is terminated wit...

Page 203: ...m Sine OUTPUT 726 DEAOCl FRA39KZ APAlVL PtlA2700G WFASI Set channel A to OUTPUT 726 DEBOCl FRB37KZ APBIUL PHB90DG WFBSI Set channel B to OUTPUT 726 OECOC1 FRCl9KZ APC 100flV WFCSI OUTPUT 726 DEDOC1 FRDl KZ PIPDZVL WFDSI END Destination Output 1 Freq 37 kHz Amplitude 1 volt Phase 90 degrees Waveform Sine Set channel C to Destination Output 1 Freq 19 k H t Amplitude 0 1 volt Waveform Sine Set channe...

Page 204: ...MS DAPHSVL DAPL0 2UL I I OUTPIJT 726 SEQPlET WSQ000100110111 SEQE12ET Preset go to digital seauence mode Set sequence base to Binary sequence period 0 5 ms on level 5 volts and o f f level 0 2 volt Set sequence pointer 1 write sequence 0001001 101 l l and set sequence end 12 OUTPUT 726 RUNC END Run sequence continuously Figure C 3 Sample Program for Configuring a Digital Sequence String Artisan Te...

Page 205: ...guage 1 programming example f o r t h e HP 89G4A MULTIFUNCTION SYNTHESIZER Option 02 1 OUTPUT 726 PS P r e s e t HP 8904A OUTPUT 726i GM0 Got 0 channel c o n f i g u r a t i o n mode OUTPUT 726 FRAZKZ APA2UL PHA45DG WFASQ Set channel A frequency 2 kHz a m p l i t u d e 2 v o l t s phase 45 degress and waveform square OUTPUT 726 FRBZKZ APB2UL PHB90DG WFBSQ Set channel B frequency 2 kHz a m p l i t ...

Page 206: ...ency Value Terminator Example FRH723 5HZ Enter Hop Mode frequency parameter Valid terminators are HZ and KZ Form FHR ON or OF Example FHROF Frequency Hop On Off Control Form H R A d or 2 Digit Address ET Example HRA9ET Enter Hop Register address Addresses 0 15 are valid valid terminator is ET Form PHHcPhase Value Terminator Example PHH59 3DG Enter Hop Mode phase Valid terminators are DG and RD For...

Page 207: ...1 TO 100 FOR J O TO 5 OUTPUT 726 HRA J ET NEXT J NEXT I END Preset po t o channel c o n f i g u r a t i o n mode Set Hop Ram address 0 Hop Freq 500 H z Hop Amplitude 1 v o l t Set Hop Ram address 1 Hop Freq 1 kHz Hop Amplitude 2 v o l t Set Hop Ram address 2 Hop Freq 1 5 k Hz Hop CImplitude 3 v o l t Set Hop Ram address 3 Hop Freq 2 k H i Hop Amplitude 4 v o l t s Set Hop Ram address 4 Hop Freq 2 ...

Page 208: ...tal Sequence Mode HP IB Codes C 4 sample HP IB program C 8 specifications 3 18 DSB 2 5 2 6 2 8 ranges 2 21 DTMF 3 10 DTMF Sequence 3 10 DTMF Sequence Mode HP IB Codes C 4 specifications 3 18 Dual Output Ports 4 1 HP IB Codes C 9 E Edit Sequence 3 7 Error Numbers El END 3 7 Exit 1 21 F Fast Hop 5 8 Float Control 1 6 Floating ground 1 16 1 21 cable connections 1 17 voltage differential 1 17 LEDs 1 1...

Page 209: ...ram C 7 C 8 with 02 block diagram 4 12 Option 02 4 1 HP IB C 9 sample HP IB program C 9 Option 03 5 1 HP IB C 10 sample HP IB program C 11 Output 1 15 OUTPUT 1 13 output Port 1 12 control 1 13 1 22 ground 1 16 impedance 1 13 LEDs 1 12 output signal 1 7 level 1 9 summation 2 16 INCR SET 1 11 Insert 3 7 Installation A 1 L LEDs 1 12 u MAIN 1 21 Manual Dial 3 13 Manual Run 3 8 modulation 2 4 2 9 2 20 ...

Page 210: ...nctions 1 22 specifications Stereo Phase Test Signal 4 6 summation 2 16 2 20 SPECIAL 1 20 Signal Sequence Modes 3 18 Options 01 and 02 combined 4 8 T Tone Configuration 3 4 Tone Register 3 5 Tone Sequence Mode 3 3 HP IB Codes C 4 specifications 3 18 Two Output Ports 4 1 v Variable Duty Cycle Pulse Train 2 24 Variable Phase Signal 4 7 VOR Composite Signal 2 23 W WAVEFORM 1 10 Artisan Technology Gro...

Page 211: ...lett Packard Company 2000 South Park Place Atlanta GA 30339 Canada Hewlett Packard Canada Ltd 6877 Goreway Drive Mississauga Ontario Canada L4VlM8 Europe and Africa Hewlett Packard S A P O Box 529 1180 AM Amstelveen The Netherlands Australasia Hewlett Packard Australia Ltd 31 41 Joseph Street Blackburn Victoria 3130 Australia Yokagawa Hewlett Packard Ltd 29 21 Takaido Higashi 3 Chome Suginami ku T...

Page 212: ... procedures The Performance Test Record lists all of the tested specifications and their acceptable limits The results recorded at incominginspection can be used for comparisonin periodic maintenance and troubleshooting and after repairs or adjustments 4 4 CALIBRATION CYCLE This instrument requires periodic verification of performance Dependingon the use and environmen tal conditions the instrumen...

Page 213: ...eof options User interface Keyboard Display Beeper Signal parameters Waveform Frequency Amplitude Phase Output conditioning Float and ground Filter On and off Store and recall Select special functions Second output Opt 002 Complex signal operations Modulation Opt 001 Summation Opt 001 4 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 214: ... against which the counter s time base is adjusted degraded by aging environmental changes and the last digit uncertain The counter used in this test should be calibrated to within 5 ppm that i s 50 H z out of 10 MHz Procedure 1 Connect the frequency counter s input to the Multifunction Synthesizer s rear panel 10 MHz REF OUT connector 2 Set the counter to read frequencywith at least 10H zresoluti...

Page 215: ...ure ac amplitude accuracy a dc signal is applied to the high impedanceinput of an oscilloscope This amplitude becomes a reference line on the oscilloscope display The instrument waveform is then set to a sinusoidwith the samepeak level as the dc reference NOTE This test does not verify ac amplitude accuracy for Output 1 in instruments with Option 006 balanced output Refer to Performance Test 4 for...

Page 216: ...tifunction Synthesizer OUTPUTS 1 HIGH output and the digital multimeter input both to the oscilloscope sdc coupled high impedance vertical input using a tee Refer to Figure 4 1 3 Switch the digital multimeter to measure dc volts On the Multifunction Synthesizer set the dc amplitude as listed in the following table For each setting the amplitude as read on the digital multimeter should be within th...

Page 217: ...dc 57 1 mVdc 18 0 mVdc 1 5 mVdc 11 0 mVdc AC Amplitude Accuracy Output 1 4 Onthe Multifunction Synthesizer key inAMPTD 8V Setthe oscilloscope sinput impedanceto 50ohmsorterminate the inputin 50 ohmsusing atee Setthe oscilloscope svertical sensitivity to 1V division Adjust the vertical position of the dc trace to coincide with the secondgraticule line from the top of the screen 5 On the Multifuncti...

Page 218: ...00000 Peak Difference Limits divisions Lower 0 08 0 08 0 08 0 24 Actual NOTE This concludes the test ifthe instrument does not have Option 002 DC Amplitude Accuracy Output 2 6 On the MultifunctionSynthesizer press SHIFT PRESET After the instrument presets key in fl Channel Config NEXT NEXT SHIFT FLOAT2 OFF WAVE FORM r 7 Connect the MultifunctionSynthesizer OUTPUTS 2 HIGH output and the digital mul...

Page 219: ...04 mVdc 291 mVdc 135 2 mVdc 57 1 mVdc 48 0 mVdc 1 5 mVdc 11 O mVdc AC Amplitude Accuracy Output 2 9 On the Multifunction Synthesizer key in AMPTD 8 V Set the oscilloscope s vertical sensitivity to 2 Vldivision Adjust the vertical position of the dc trace to coincide with the second graticule line from the top of the screen 10 On the Multifunction Synthesizer key in WAVE FORM Q Set the frequency in...

Page 220: ...0 1 1 000 100 000 600000 Peak Difference Limits divisions Lower Frequency Ha 0 08 0 08 0 08 0 08 0 08 0 08 0 24 0 24 Performance Test 2 4 9 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 221: ...viation from the reference level at various frequencies is determined by incrementing the Multifunction Synthesizer s amplitude until the reading is the same as for the referencethen noting the total level change required NOTE This test does not verify ac amplitude flatness for Output 1 in instruments with Option 006 balanced output Refer to Performance Test 4 for thut option However if the instru...

Page 222: ...NEXT f2 Status ON NEXTNEXTNEXT f2 Status ON f4 Exit f l Channel Config NEXT SHIFT FLOAT 1OFF AMPTD 2 V INCR SET 2 mV 2 Connect the ac input of the thermal converter to the Multifunction Synthesizer s OUTPUTS 1 HIGH output Connect the dc output of the thermal converter to the input of the voltmeter Refer to Figure 4 2 3 Switch the voltmeter to measure dc volts on a 10 mV range Read the voltage and ...

Page 223: ...de incrementing This i s why it is important to keep track of the total number of increments I I I Number of Increments 20 100 1 000 10 000 50 000 100 000 200 000 600000 0 0 5 For frequencies of 20 Hz to 100 kHz in the table of step 4 compute the largest difference in number of increments The absolute value of this difference should be 2 increments or less Flatness from 20 Hz to 100 kHz 2 incremen...

Page 224: ...he Multifunction Synthesizer key in AMPTD 2 V again b Note the dc voltage on the voltmeter c On the Multifunction Synthesizer press the 0 or 0 keys as needed to bring the dc voltage to the level noted in step 9 Keep track of the number of increments required to do this Frequency Number of increments 20 100 1 000 10 000 50 000 100 000 200 000 600000 0 0 11 For frequencies of 20 Hz to 100 kHz in the...

Page 225: ...ms into a balanced 600R load 1 kHzreference 30 Hz to 20 kHz 30 Hz to 100kHz Description AC amplitude accuracyand flatness for Output 1of instruments with Option 006 are measureddirectly with a voltmeter NOTE This test verifies ac amplitude accuracy and fiatness for Output 1 in instruments with Option 006 If the instrument has Option 002 a second output also perform PerformanceTests 2 and 3 Equipme...

Page 226: ...ude and frequency as indicated in the followingtable For each setting the amplitude as read on the digital multimeter should be within the limits shown MultifunctionSynthesizer Settings Frequency Hz 30 100 1 000 10 000 20 000 100 000 30 100 1000 10 000 20 000 100 000 30 100 1000 10 000 20 000 100 000 Amplitude Vrms 10 10 10 10 10 10 1 1 1 1 1 1 0 1 0 1 0 1 0 1 0 1 0 1 AC Amplitude Flatness 5 On th...

Page 227: ... For each setting reads between 9 99and 10 01Vac the amplitude as read on the digital multimeter should be within the limits shown Voltage Reading Limits Vnns Lower Actual Frequency Setting H4 30 100 10 000 20 000 100 000 9 83 9 83 9 83 9 83 9 17 10 17 10 17 10 17 10 17 10 17 I I I t J 4 16 Performance Test 4 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg c...

Page 228: ... filter THD N is the ratio of these two voltages NOTE This test does not verify spectral purity for Output 1 in instruments with Option 006 balanced output Refer to Performance Test 6 for that option However if the instrument has Option 002 and 006 perform the portion of this test for Output 2 Equipment Audio Analyzer HP 8903B Procedure output 1 NOTE If the instrument has an Option 002 and 006 com...

Page 229: ... 0 MultifunctionSynthesizerSettings 20 7 500 7 500 20000 20 000 100 000 20 7500 7500 20 OOO 20 000 100 000 Amplitude V 10 10 10 10 10 10 0 14 0 14 0 14 0 14 0 14 0 14 63 63 63 63 55 55 63 63 63 63 55 55 I 1 On an HP 89036 a 750 kHzlow pass filter is selectedwhen the other low pass filters are off output 2 4 On the Multifunction Synthesizer press SHIFT PRESET After the instrument presets key in fl ...

Page 230: ...equency Hz 20 7 500 7 500 20 000 20 000 100 000 20 7 500 7 500 20 000 20 000 100 000 Amplitude I f 10 10 10 10 10 10 0 14 0 14 0 14 0 14 0 14 0 14 63 63 63 63 55 55 I l On an HP 89036 a 750 kHz low passfilter is selected when the other low passfilters are off PerformanceTest 5 4 19 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 231: ...s test verifies the spectral purity of Output 1 in instruments with Option 006 If the instrument has Optwn 002 a second output also perform Performance Test 5 Equipment Audio Analyzer HP 8903B Feedthrough Termination 600R HP 11095A Adapter BNC to Dual Banana Plug 2 required HP 1251 2277 Procedure 1 On the Multifunction Synthesizer press SHIFT PRESET After the instrument presets key in fl Channel C...

Page 232: ...750 l 7 5 0 30 30 30 80 80 750 l 7 5 0 30 30 80 80 750 l 750 l Multifunction Synthesizer Settings Frequency Hz 300 7 500 20 000 20 000 100 000 30 300 7500 7500 20 000 20 000 100 000 20 7500 7500 20 000 20 000 100 000 Amplitude Vrms 10 10 10 10 10 1 1 1 1 1 1 1 0 14 0 14 0 14 0 14 0 14 0 14 DistortionLimits dB 60 63 63 55 55 46 60 63 63 63 55 55 63 63 63 63 55 55 l On an HP 89038 a 750 kHz low pass...

Page 233: ... The phase of the reference synthesizer is adjusted so that the Lissajous pattern generated on the oscilloscope display aligns with itself The phase of the Multichannel Synthesizer is then stepped in 18 deg increments and the alignment of the pattern is checked for each step NOTE Phase accuracy for Output 1 in instruments with Option 006 balanced output is not specified However if the instrument h...

Page 234: ...nal reference NOTE Alternatiwly the Multifunction Synthesizer m y be connected to accept a 10 MHz referencefrom the referencesynthesizer if needed b Connect the Multifunction Synthesizer OUTPUTS 1 HIGH output to the oscilloscope s dc coupled X input Switch the oscilloscope sinput impedance to 50R or terminate the input in 500 using a tee c Connect the reference synthesizer soutput to the oscillosc...

Page 235: ...0 0 05 0 05 20 000 0 05 0 05 1 000 0 05 0 05 100 0 05 0 05 NOTE To determine the alignment limits momentarily set the phase increment of the Multifunction Synthesizer to 0 1 deg press 0 observe the misalignment which equals 0 1 deg then press U 0 1 deg is the instrument s smallest phase increment 0 05 deg must be extrapolated from the observed 0 1 deg increment Remember to set the p h e increment ...

Page 236: ...00 kHz AMPTD 1V PHASE INCR SET 18deg 8 Set the reference synthesizer sfrequencyto exactly 1MHz Theamplituderemains at 0 7 Vrms 9 Set the frequency of the two synthesizers as indicated in the followingtable as was done in step a Adjust the phase of the reference synthesizer until the front and back traces of the Lissajouspattern coincide b On the Multifunction Synthesizer press PHASE then press the...

Page 237: ... to several offsets and the time interval measured to determine the actual phase shift NOTE Phase accuracy for Output 1 in instruments with Option 006 balanced output is not specified However if the instrument has Option 002 and 006 perform the portion of this test for Option 002 An alternate test for verifyingphase accuracy is given in Performance Test 7 Phase Accuracy Using an Oscilloscope Equip...

Page 238: ...ction to time interval b Set the statistics function to mean and clear the reference c Set the sample size to 1000 d Set the display rate to maximum e Set the input impedance to 50Q input attenuation to tl and input coupling to DC f Set the trigger slope for a positive going edge g Adjust the input trigger level to OV 4 Set the frequency of both Multifunction Synthesizers as indicated in the follo...

Page 239: ...0 2 779 200 Frequency Hz 100 000 10 000 1 000 100 NOTE This concludes the test if the instrument does not have Option 002 output 2 5 Set up the equipment as in step 1except connect the test Multifunction Synthesizer s OUTPUTS 6 On test Multifunction Synthesizer press SHIFT PRESET After the instrument presets key in 2 HIGH output to the start input of the time interval counter Refer to Figure 4 4 f...

Page 240: ...ress the set reference key of the c On the test Multifunction Synthesizer key in the phase as indicated in the table The time statistics functions interval on the counter display should be within the limits given in the table PHASE 10 deg PHASE 100 deg Lower Actual Upper Lower Actual Upper 276 4 279 2 2 776 4 2 779 2 2764 2792 27764 27792 27640 27920 277640 277920 276400 279200 2776400 2779200 Tim...

Page 241: ...e signal The amount of phase shift required to null the signal is the phase error between the two channels NOTE For instruments with Option 002 a second output and 006 balanced ou ut channel to channelphase accuracy isspecified only for Output 2 For instruments with Option 006 but not Option 002 channel to channelphase accuracy is not specified Equipment Oscilloscope HP 1740A or Tektronix 2235 Pro...

Page 242: ... frequency fuzziness on the signal The only concern i s to minimize the 10 kHz component 5 On the Multifunction Synthesizer press PHASEthen press the 0 or U keys a few times to locate the null of the 10 kHz signal The null should occur between 179 9 and 180 1 deg At 10 kHz 0 1 deg phase shift represents a delay of 28 ns Phase Null 179 9 180 1 deg 6 On the Multifunction Synthesizer key in LAST FREQ...

Page 243: ...other The output is viewed on an oscilloscope The amplitude of Channel B is fine adjusted to null the signal as much as possible The phase of Channel B is fine adjusted also to further null the signal The amount of phase shift required to null the signal is the phase error between the two channels NOTE Output 1 to Output 2 phase accuracy for instruments with both Options 002 and 006 balanced outpu...

Page 244: ...loscope NOTE Ignore any high frequency fuzziness on the signal The only concern is to minimize the 10 kHz component 5 On the Multifunction Synthesizer press PHASEthen press the 0or U keys a few times to locate the null of the 10 kHz signal The null should occur between 179 9 and 180 1 deg At 10 kHz 0 1 deg phase shift represents a delay of 28 ns Phase Null 179 9 180 1deg 6 On the Multifunction Syn...

Page 245: ...edtogether so that the two signalsin effect cancel each other The summed signal is viewed on an oscilloscope The amplitude of reference synthesizer is fine adjusted to null the signal as much as possible The phase is then fine adjusted to further null the signal The amount of phase shift required to null the signal is the phase error between the two instrument outputs annnnnnnn onno nannnnnnn oonn...

Page 246: ...hannelA to Output 2 and make the test on Output 2 which should not be floating 2 On the Multifunction Synthesizerunder test press SHIFT PRESET After the instrument presets key in SHIFT SPECIAL 7 ENTER f2 Status ON LAST f2 Status ON f4 f l Channel Config NEXT SHIFT FLOAT 1 OFF FREQ 10 kHz AMPTD 1 V INCR SET 5 mV PHASE 180 deg INCR SET 1 deg 3 On the reference Multifunction Synthesizer press SHIFT P...

Page 247: ...in FREQ 100 kHz AMPTD 1 V PHASE 180deg 8 On the reference Multifunction Synthesizer key in AMPTD 1 V 9 On the Multifunction Synthesizer under test press AMPTD then press the 0 or U keys if necessary to minimize the 100kHz signal on the oscilloscope as was done in step 6 10 On the Multifunction Synthesizer under test press PHASE then press the 0 or 0 keys a few times to locate the null of the 100 k...

Page 248: ...al to the previously measured on time nominally5 ms and observingthe waveformon an audio spectrum analyzer The analyzer will display a 1kHz carrier with 100 Hz sidebands The off time is incremented until the second sideband of the 1kHz carrier is suppressed The total off time incrementing equals the off time error NOTE For instruments with Option 006 balanced output even though the tone sequencesa...

Page 249: ...NEXT NEXT f 2 On Time 3 Adjust the oscilloscope s vertical gain and sweep speed to view the 1kHz output burst from the Multifunction Synthesizer The waveform should appear similar to the one shown in Figure 4 8 NOTE The waveform shown was triggered on a negative going zero crossing If the oscilloscope is difficult to trigger try adjusting the sweep time so that only one tone burst shows Sweep time...

Page 250: ...ress f 4 Off Time key in the number recorded in step 4 then press ms The off time should equal the on time as shown on the Multifunction Synthesizer s display and should be approximately 5 ms 6 Adjust the spectrum analyzer to observe the 1kHz tone burst and its 100 H z sidebands Refer to Figure 4 9 7 On the Multifunction Synthesizer press the 0 or U keys until the second upper sideband of the 1 kH...

Page 251: ...GE 1 dBV MAG SUPPRESSED 3 Hz I_1E mi 19 1200 Hz 1 SIDFBAND X 1000 HZ I Y 9 00 dBV I Figure 4 9 Tone Burst Spectrum with Suppressed 1200 H z Sideband 4 40 Performance Test 12 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 252: ...ng equals the on time error The burst s off time is measured directly on the oscilloscope NOTE For instruments with Option 006 balanced output even though the DTMF sequences appear at Output 1 DTMF sequence timing accuracy is not specified Equipment Oscilloscope HP 1740A or Tektronix 2235 Procedure On Time Accuracy 1 Connect the Multifunction Synthesizer OUTPUTS 1 HIGH output to the high impedance...

Page 253: ... waueform is unstable 4 On the Multifunction Synthesizer press the 0or Ukeys until the negative goingzero crossing of the last cycle of the tone burst touches OV with no positive or negative slewing Slewingrefers to the rapid change in voltage which appears as a vertical line on the oscilloscope The On Time setting which appears on the Multifunction Synthesizer sdisplay should be between 4 27 and ...

Page 254: ...ultifunction Synthesizer OUTPUTS 1 HIGH output to the high impedance ac coupled oscilloscope s input 2 On the Multifunction Synthesizer press SHIFT PRESET After the instrument presets key in NEXT NEXT f l Digital Sequence NEXT SHIFT FLOAT 1 OFF f l Seq Base Hex f l Seq Base Bin f2 On Lev 1 V NEXT f4 Edit Sequence 1000000000 f2 Seq End 10 ENTER NEXT f2 Continuous 3 Adjust the oscilloscope s vertica...

Page 255: ...156 2 mV 78 1 mV 39 0 mV 19 5 mV 10 0 mV Minimum 9 999 500 Hz 9 794 Vdc 4 907 Vdc 4 897 Vdc 2 449 Vdc 1 224 Vdc 604 mVdc 291 mVdc 135 2 mVdc 57 1 mVdc 18 0 mVdc 1 5 mVdc 1 1 OmVdc 10 21 VdC 5 115 VdC 5 1 05 VdC 2 553 VdC 1 276 VdC 646 mVdc 333 mVdc 177 2 mVdc 99 1 mVdc 60 0 mVdc 40 5 mVdc 31 O mVdc Results Actual Maximum IO 000500 Hz 10 21 Vdc 5 115 Vdc 5 105Vdc 2 553 Vdc 1 276 Vdc 646 mVdc 333 mV...

Page 256: ...nimum 0 08 div 0 08 div 0 08 div 0 24 div 9 794 Vdc 4 907 Vdc 4 897 Vdc 2 449 Vdc 1 224 Vdc 604 mVdc 291 mVdc 135 2 mVdc 57 1 mVdc 18 0 mVdc 1 5 mVdc 1 1 O mVdc 10 21 VdC 5 1 15 VdC 5 105 VdC 2 553 VdC 1 276 VdC 646 mVdc 333 mVdc 177 2 mVdc 99 1 mVdc 60 0 mVdc 40 5 mVdc 31 O mVdc 0 08 div 0 08 div 0 08 div 0 24 div Results Actual Maximum 0 08 div 0 08 div 0 08 div 0 24 div 10 21 Vdc 5 115 Vdc 5 10...

Page 257: ...kHz 1 V 20 kHz 1V 100 kHz 1 V 30Hz 0 1 V 100 Hz 0 1 V 1kHz 0 1 V 10 kHz 0 1 V 20 kHz 0 1 V 100 kHz 0 1 V AC Amplitude Flatness RequencySetting 30 Hz 100 Hz 1 kHz 10 kHz 20 kHz 100 kHz Results Minimum 9 4v 9 4v 9 4v 9 4v 9 4v 8 8V 0 94V 0 94V 0 94V 0 94V 0 94V 0 88V 0 094V 0 094V 0 094V 0 094V 0 094V 0 088V 9 83V 9 83V 9 83V 9 83V 9 83V 9 83V Actual Maximum 2 increments 2 0 increments 2 increments ...

Page 258: ...0 kHz BW 100 kHz 0 14V 750 kHz BW Output 2 Option 002 Fiequency and Amplitude Settings 20 Hz lOV 30 kHz BW 7 5kHz lOV 30 kHz BW 7 5 kHz lOV 80 kHz BW 20 kHz lOV 80kHz BW 20 kHz lOV 750kHz BW 100 kHz lOV 750 kHz BW 20 Hz 0 14V 30 kHz BW 7 5kHz 0 14V 30 kHz BW 7 5kHz 0 14V 80kHz BW 20 kHz 0 14V 80 kHz BW 20 kHz 0 14V 750 kHz BW 100 kHz 0 14V 750 kHz BW Minimum Results Actual Maximum 63 dB 63 dB 63 d...

Page 259: ...V 80kHz BW 20 kHz 0 14V 80 kHz BW 20 kHz 0 14V 750 kHz BW 100 kHz 0 14V 750 kHz BW PHASE ACCURACY USING AN OSCILLOSCOPE output 1 FrequencySetting 100 kHz 50 kHz 20 kHz 1 kHz 100 Hz Output 2 Option 002 FrequencySetting 100 kHz 50 kHz 20 kHz 1 kHz 100 Hz Minimum 0 05 deg 0 05 deg 0 05 deg 0 05 deg 0 05 deg 0 05 deg 0 05 deg 0 05 deg 0 05 deg 0 05 deg Results Actual Maximum 60 dB 63 dB 63 dB 55 dB 55...

Page 260: ... deg 10 kHz 100 deg 1 kHz 1 deg 1 kHz 10 deg 1 kHz 100 deg 100 Hz 1 deg 100 Hz 10 deg 100 Hz 100 deg Minimum 26 4ns 276 4ns 2776 4ns 264 ns 2764 ns 27764 ns 2 640ns 27640ns 277 640ns 26 400 ns 276 400 ns 2 776 400 ns 26 4ns 276 4ns 2776 4ns 264 ns 2764ns 27764 ns 2 640ns 27 640ns 277 640ns 26 400 ns 276 400 ns 2 776 400 ns Results Actual Maximum 29 2ns 279 2ns 2779 2ns 292 ns 2 792 ns 27 792ns 2 9...

Page 261: ...e Timing Off Time Timing DIGITALSEQUENCE PERIODACCURACY OPTION001 179 9de 179 0de 10 11 OUTPUT 1 TO OUTPUT2 PHASEACCURACY OPTION 002 I Null at 10 kHz Null at 100kHz 179 9dq 179 0dq I UNIT TO UNIT PHASE ACCURACY OPTION 005 I Null at 10 kHt Null at 100 kHz 179 9d e 178 0de 4 98 ms 0 01 mi 4 27 ms 9 ms I 8ops On Period I Actual Maximum 180 1 deg 181 O deg 180 1 deg 181 Odeg 180 1 deg 182 0deg 5 02 ms...

Page 262: ...ur protection and to avoid damage to the equipment This instrument contains components that are highly susceptible to damage from static discharge Always observe proper ESD safety procedures while making any measurements or touching any part of the inside of the instrument Most adjustmentsdescribed in this section areperformed withpower supplied to the instrument and with protective covers removed...

Page 263: ...he specified test equipment refer to Table 1 2 for the minimum specifications It is important that the test equipment meet the critical specifications listed in the table if the Multifunction Synthesizer is to meet its performance requirements 5 4 POST REPAIR TESTS ADJUSTMENTS AND CHECKS Table 5 1 lists the performance tests adjustments and checks needed to calibrate or verifycalibration of a repa...

Page 264: ... Option 006 Performance Test 7 PhaseAccuracy Using an Oscilloscope PerformanceTest 8 PhaseAccuracy Usinga Time Interval Counter PerformanceTest 9 Channel to ChannelPhaseAccuracy Option 001 PerformanceTest 10 Output 1 to Output 2 PhaseAccuracy Option002 PerformanceTest 11 Unit to Unit PhaseAccuracy Option 005 PerformanceTest 12 Tone SequenceTiming Accuracy Option 001 Performance Test 13 DTMF Sequen...

Page 265: ...ut assembly and Output 1 the output from the A3 Output Assembly is to be adjusted move the A10 Output Assembly out of the way Refer to the disassemblyprocedure in Figure 5 4 3 If the instrument has Option 006 balanced output disconnect the coax cable from A3J400 OUTPUT HIGH at the front edge of the A3 assembly In the steps that follows when a reference is made to the OUTPUTS 1 HIGH connector make ...

Page 266: ... mVdc Output Amplifier Offset 10 Connect the Multifunction Synthesizer OUTPUTS 1 HIGH output for the A3 Output Assembly 11 On the Multifunction Synthesizer key in AMPTD 40 mV 12 Adjust A3R418 or A10R418 DC OFFSET for a level between 40 1 and 39 9 mVdc or OUTPUTS 2 HIGH for the A10 Output Assembly to the voltmeter input Maximum DC 13 On the Multifunction Synthesizer key in AMPTD 10 V 14 On the Mult...

Page 267: ... from the A3 Output Assembly is to be adjusted move the A10 Output Assembly out of the way Refer to the disassembly procedure in Figure 5 4 3 If the instrument has Option 006 balanced output disconnect the coax cable from A3J400 OUTPUT HIGH at the front edge of the A3 assembly In the steps that follows when a reference is made to the OUTPUTS 1 HIGH connector make the connection to A3J400 instead 4...

Page 268: ...n Synthesizer OUTPUTS 1 HIGH output to the voltmeter input Do 3 On the Multifunction Synthesizer press SHIFT PRESET After the instrument presets key in not use a feedthrough termination at thistime Switch LINE to ON f l Channel Config 1 NEXT SHIFT FLOAT 1 OFF AMPTD 10 V 4 On the Multifunction Synthesizer adjust A6R1 until the voltmeter reads between 19 8 and 20 2 5 Connect a 600R feedthrough termi...

Page 269: ...lywith the balance transformer disconnected A Equipment Network Analyzer HP 3577A NOTE A spectrum analyzer with a tracking generator that covers 0 to 5 MHz is also suitable He 8904R NETWORK MULTIFUNCTION ANALYZER SYNTHESIZER fl3J5 OR fll0J5 i INPUT Figure 5 1 Sharp Cutoff Filter Adjustment Test Setup Procedure 1 Turn the Multifunction Synthesizer s LINE to OFF and unplug the power cord It can rema...

Page 270: ...ows a Set the frequency to sweep linearly from 0 to 5 MHz b Set the vertical scale to log c Set the source level to 10 a m d Set the input attenuation and scale so that the passband of the displayed filter response is at the top of the display and the notch at approximately 1MHz is not obscured by noise Refer to Figure 5 2 7 Set the resolution bandwidth to 100 Hz 8 Set the network analyzer s cente...

Page 271: ...D I V MARKER 2 500 0 0 0 O O O H z 10 OOOdBrn 10 O O O d B M A G A 80 254dBrn Figure 5 2 npical Filter Response from 0 to 5 MH2 5 10 Adjustment 4 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 272: ... 11050Aor Ballentine Labs 1395A 1 The thermal converter issusceptible to burnout if more than 1 Vrms i sapplied to its input Be careful when changing the frequency of the Multifunction Synthesizer that the amplitude does not inadvertently exceed 1 Vrms a displayed setting of 2 8 V on the Multifunction Synthesizer Procedure 1 Perform Adjustment 4 Sharp Cutoff Low PassFilter first 2 On the Multifunc...

Page 273: ... Test Setup 5 Switch the voltmeter to measure dc volts on a 10 mV range Read and record the voltage The voltage should be about 3 7 mVdc 1kHz Reference mVdc 6 On the Multifunction Synthesizer key in FREQ 550 kHz Adjust A3Lll or AlOLll for the same reading as in step 5 Allow several seconds for the level reading to stabilize 5 12 Adjustment 5 Artisan Technology Group Quality Instrumentation Guarant...

Page 274: ...crewonthe rear edge back outthe screwonthe rear edge of the bottomcoveralso Placethe instrument asit will normally be used forexample in a rack or sitting on a table with its tilt stands down 2 On the MultifunctionSynthesizer if the display backlighting is not on press LOCAL Adjust A2R36 80V for the most pleasing backlighting intensity If the backlighting times out and goes off press LOCAL again C...

Page 275: ...s suspected run Performance Test 11 Unit to Unit Phase Accuracy If the test fails check the relatiue delay between test points A2TPl on the two Multifunction Synthesizers The delay difference should be less than 15 rzs If this test passes check for a channel to channel or Output 1 to Output2 phase accuracyproblem Equipment Oscilloscope HP 1740Aor Tektronix 2235 Power Splitter Four Way Mini Circuit...

Page 276: ... frequency of channel B is one half the frequency of A NOTE Whensetting the delay switches only one switch inan array should be closed at a time therefore when changing switch settings open the currently closed switch beforeclosing the desired switch Set the switches to the settings that give the result nearest the desired ualue Adjusting A2S4 7 Move the probe of channelB to test point A2TP5 Note ...

Page 277: ... tang on mounting post with needlenose pliers while applying gentle upward pressure with the PC board extractor Extractor should exert pressure on metal shield riot on PC board except where post does not extend through shield lay A10 aside coax cables will still be 5 Lift A10 fromi instrument and carefully connected 6 Replace hold down screw from step 3 with spacer found under 410 into mounting ho...

Page 278: ...djustments R32 R36 DISPLAY CONTRAST BACKLIGHTING Figure 5 5A Adjustment Locations for A2 Serial Prefix 2942A and below 5 17 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 279: ...ustments Model 8904A TP1 BACKLIGHTING Figure 5 5B Adjustment Locations for A2 Serial Prefix 2948A and above 5 18 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 280: ...8 DC OFFSET2 I R229 DC OFFSET1 L11I SINE X X COMPENSATION R224 DAC LEVEL J6 J5 J7 iiX 000 1 1 SHARP CUTOFF LPF TEST I TEST J3 RUN SHARP CUTOFF LPF L7 Figure 5 6 Adjustment Locations for A3 and A10 5 19 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 281: ...quipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentation Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate representative or authorized distributor for any manufacturer listed herein We re here to make your life easier How...

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