CHECK OUT THE WIKI The purpose of the wiki is mainly to allow you to find information on instruments, either from either
- The model number
- The function(s) listed below. Some instruments have multiple functions - for example, the 4195A is a VNA, spectrum analyzer and an impedance analyzer. Therefore the 4195A is listed in multiple categories
Please also check out HPWiki available here:
- Accessory kits - various types
- AC power analyzers - PA2201A and PA2203A
- AC power supplies 6811C, 6812C, 6813C
- Airlines
- Arbitrary waveform generators M8194A
- Amplifiers?493A, 495A?
- Attenuators (optical) 8156A, 8157A, 8158B, 81566A, 81576A,?
- Attenuators (RF) 8494A
- Attenuator set (500 ¦¸) 350C
- Attenuator set (600 ¦¸) 350D
- Attenuator switch driver
- Audio analyzers? 8903A, 8903B, 8903E,? ?
- Base station test sets
- Bit error rate testers (BERTs)
- Cables
- Capacitance meters U1701A, U1701B, 4272A, 4278A, 4279A
- Capacitor Bridge 4270A,
- Capacitor standards 16380A, 16380C,?
- Carrier noise test setsi
- Cesium frequency standards
- Clamp ammeters
- Close field probes
- Crystal Impedance E4915A, E4916A
- Data Acquisition Systems (DAQs)
- DC power analyzers
- DC power supplies 6030A , 6031A , 6032A, 6033A, 6035A, 6131C, 6621A, 6622A, 6623A, 6624A, 6627A, 6255A, 6645A, 6671A, 6672A, 6673A, 6674A, 6675A, 62003A, 62003C, 62003E, 62004A, 62004B, 62004E, 62005A, 62005B, 62005E, 62006A, 62006B, 62006E, 62010A, 62010C, 62010E, 62012A, 62012C, 62012E, 62015A, 62015C, 62015E, 62018A, 62018C, 62018E, 62024A, 62024C, 62024E, 62028A, 62028C, 62028E, 62048A, 62048C, 62048E
- Delay lines
- Detectors
- Device current waveform analyzers
- Digital communications analyzers
- Directional couplers
- Distortion analyzers 330B, 330C, 330D, 331A, 332A, 333A, 334A, 339A, 8903A, 8903B, 8903E,???
- Dynamic measurement DC source
- Electrometers
- Fading simulators
- Femto ammeters
- Filters
- Frequency counters 522B, 5342A 5343A 5352B
- Frequency standards?
- Function Generators ? 3310A,? 8165A,
- GPIB controllers, extenders, cables etc.
- GPS frequency standards
- Harmonic mixers
- High resistance meters 4339B
- High resistance meter fixtures 16008B
- HEV EV Grid Emulators and Test Systems
- In-circuit test systems
- Impedance analyzers 4195A, 4291A, 4291B, 4395A, 4396A, 4396B, 4294A, E4990A, E4991A
- Impedance Analyzer Accessories
- Impedance / Gain Phase analyzer 4194A
- Impedance Meter 4193A,
- Isolators
- LCR meters? U1701A, U1701B, U1731A,? U1731B, U1731C, U1732A, U1732B, U1732C, U1733C, 4191A , 4192A, 4194A, 4195A, E4196A,? 4216A, 4260A, 4261A, 4262A? 4263A, 4263B, 4271B, 4274A, 4275A, 4276A , 4277A, 4284A, 4285A, 4286A, 4287A, 4291A, 4291B, 4294A, 4332A, 4342A, 4395A, 4396A, 4396B, E4980A and E4980AL
- LCR meter calibration devices? 16380A 42030A? 42090A, 42091A and 42100A
- LCR meter accessories
- 2-Terminal BNCs.
- 4-Terminal Pair (BNC connectors)
- Cable extension 16048A, 16048D, 16048E, 16048G, 16048H
- DC current bias accessories 42841A, 42842A, 42842B, 42842C, 42843A
- DC voltage bias accessories 16065A, 16065C,
- Kelvin clips 16089A, 16089B, 16089C,16089E
- Lead Components 16047A,16047B, 16047D, 16047E
- Material 16451B, 16452A
- Probes 42941A
- SMD 16034E, 16034G, 16034H
- 2-port 16096A
- 7 mm (APC7)
- 2-Terminal BNCs.
- LCZ meters? 4276A, 4277A,
- Lightwave clock / data receivers
- Lightwave converter
- Lightwave component analyzer
- Lightwave measurement system mainframes
- Lightwave polarization analyzers 8509B
- Logic analyzers
- Nemo wireless network solutions.
- Noise and interference test set
- Noise figure analyzers
- Noise sources 346A, 346B. 346C ,
- Matching pads (50 ohm to 75 ohm or similar)
- Materials test equipment
- Microwave repeaters
- Microwave downconverters 70427A
- Microwave / THz sources
- Milliammeter 428B
- Milliohm meter
- Mobile communications DC source
- Modular instruments
- AXIe
- Data acquisition (DAQ)
- USB
- PXIe
- Modulation analyzers
- Multimeters 427A, 970A
- Optical attenuators
- Optical heads
- Optical sources
- Optical spectrum analyzers
- Oscilloscopes 120A, 120AR, 120B, 122A, 130A, 130B, 130BR, 130C, 140A, 140B, 141A, 150A, 150AR, 160B, 180A, 180AR, 180CD, 181A, 181AR, 181T, 181TR, 182C, 182T, 183A, 183B, 184A, 184B, 185A, 185B, 1200A, 1200B, 1220A, 1221A, 1703A, 1707A, 1707B, 1710A, 1710B, 1715A, 1722A, 1725A, 1726A, 1740A, 1741A, 1742A, 1743A, 1744A, 1746A, 1980A, 1980B, 5403A, 6000A, 6000L, 16533A, 16534A, 54100A, 5410B, 54100C, 5100D, 54111D, 54120A, 54120B, 54200A, 54501A, 54502A, 54503A, 54504A, 54520A, 54520C, 54540A, 54540C, 54542A, 54542C, 54600B, 54601A, 54601B, 54602B, 54603B,? 54645A, 54654N, 54710A, 54720A, 54750A, 54825N, E1428,?
- Oven controlled crystal oscillators (OCXOs)
- Pattern generators
- PCM terminal test set
- Phase noise measurement
- Pico ammeters
- Printers 2225
- Plotters 7470A, 7475A?
- Probes
- Protocol analyzers and exercisers.
- Power booster test sets
- Power meters 431A, 431B, 431C, 432A, 435A, 435B, 437B, 438A
- Power splitters
- Power supplies
- Pulse generators
- Q-meters 4342A?
- Q-meter calibration inductors 16470A
- Reflection transmission test set
- Return loss module (optical)
- Relays / switches / switch matrices (optical)
- Relays / switches / switch matrices (RF)
- Resistor standards 42030A?and 42100A
- S-parameter test sets
- Scalar network analyzers
- SCSI bus preprocessor interface E2324A
- Selective level meters 3746A
- Semiconductors
- Semiconductor parameter analyzers 4145A, 4155B, 4156B,
- Signal analyzers
- Signal generators / sweep generators / signal sources / oscillators 200CD, 201B, 209A, 204D,? 608A,? 8165A
- Software
- Source measure units
- Spectrum analyzers 4195A,???
- Switch control units
- SWR meter 415E?
- Time interval? counters
- Time mark generator 226A
- Timing and data state modules
- Torque wrenches
- Transmitter testers
- Trigger modules
- Ultrasound transducers
- Universal bridge? 4260A, 4265A, 4265B?
- Vacuum tube voltmeter 410C
- Vector Impedance Meter 4193A, 4800A, 4815A
- Vector Network Analyzers (VNAs) 4195A,? 8510A, 8510B, 8510C, 8753A, 8753B, 8753C, 8753D, 8753E, 8753ES, 8752ET, 8719A, 8719B, 8719C, 8719D, 8720A, 8720B, 8720C, 8720D, 8720ES, 8722A, 8722B, 8722C, 8722D, 8722ES,
- Vector Network Analyzers (VNA) calibration kits 85032B, 85032E, 85033C, 85033D, 85033E, 85050B, 85050C, 85050D, 85052B, 85052C, 85052D, 85054A, 85054B, 85054D, 85056A
- Vector Network Analyzer (VNA) verification kits
- Vector Signal Analyzer 89650S, 89600S
- Vector voltmeters 8405A, 8508A,
- VXI mainframes 70000B, 70000C
- Waveform and function generators
- Waveguide to waveguide and waveguide to coaxial transitions.
- Wireless 58 OTA chambers
- Wireless channel emulators
- Wireless network emulators
- Wireless communication test sets
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HP Hewlett Packard 400E AC Voltmeter - Untested
5
HP Hewlett Packard 400E AC Voltmeter - Untested Just received a 400E AC Voltmeter from ebay I payed ?42 including post turns out to be the bye of the day wanted it to calibrate my real to real tape recorders as my B&K is not the correct rang for the job It arrived exceedingly well packed Powered it up meter was displaying 1/10 scale on all ranges for no input Then after 5 minutes 1 Khz hardly read but 100 Khz read much higher 20 times more Strange fault any way left it on for 20 minutes now reading correct on all ranges bingo without laying a screwdriver on it Paul
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HP8566B band amplitude response discrepancy - how much indicates a component failure?
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I'm still looking at this 8566B I just repaired, and pondering what it takes to do more adjustment. Right now it looks like the 2-5.8 GHz band shows over 12.5 dB lower than in the low 0-2.5 GHz band. I'll probably start trying to tweak things to see what's needed to bring it up to par. This is the unit that had a shot YTO - the oscillator Q had B-C shorted, evidenced by the blown collector bias resistor in one of the "RO" spots. With the fresh YTO and the A20 adjustments done, the 0-2.5 GHz band seems to work fine, so I know the frequency controls and 1LO power are sufficient. I think the 13 dB or so less in the next band and whatever amounts in the higher ones should be easy to correct with proper adjustments, but I have never done this on any of my 8566s. I'm wondering whether this initial difference is no big deal in the scheme of things, or indicative of some other failure. From a quick look at the adjustment document it looks like it will get quite complicated and tedious, involving alignment of the YTX with the YTO and such, band by band. There's a lot going on in there. I think the main thing next is to assess the condition of the YTX. The only comparison I've done so far is in the overlap of the bands around 2.3 GHz. The low band is checked against the 100 MHz -10 dBm cal reference (which I checked with the 436A), then the response is checked at 2.3 GHz ~0 dBm from the HP70331A and then in the 2-5.8 band. The preselector peaking process seems to work through its routine, so the YTX must be doing some tuning at least. Anyway, I think it's likely OK and close enough operationally that it's mostly going to be about adjustments, and not some other component failure. I'll find out eventually, but it seems a lot more involved than I had expected. I'm hoping for a fairly low frustration and anxiety level. Should I worry? Ed
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I have been troubleshooting my Network Analyzer using the E8356A, E8357A , E8358A Service Guide June 2004. This 8357 has an upgraded 700 MHz CPU. After reading and Option 015. My problem is Phase Lock Lost error in a number of bands. All would seem to relate to the A8 Fractional-N Synthesizer Board Assembly. Fortunately I could partially run the Serial Bus Test where I found wildly out of spec voltages on the board. The Serial test node numbering on my application do not coincide with the manual Nodes but the description places me in similar territory as the Manuals Node descriptions. The test has a minimum and maximum range for the Node as I will describe. Min Result Max +5Vdc Supply Voltage 4.28. 5.0 5.78. OK Band ALC Level -8.27 14.0169 1.0 Bad VC01 Tune Voltage 6.3 -1.345 14.3 Bad VCO Compensation 2.07 13.748 4.07 Bad Node descriptions A11 Phase Lock Board. ( the signals to the A11 board 30kHz block come from the A8 Fractional-N board. 30kHz Phase Detector -0.33. -5.088 0.33. Bad 30kHz Phase Detector Integrator -2.86 -13.827 0.44. Bad 10MHz Frequency. 10.000000 5Mhz Frequency 4.999756 A10 Phase Lock Test Network Analyzer Setting W39 From A10J5 Band 0 Setting 9.9MHz Result should be 9.9MHz Actual Measurement 9.87 (Very weak signal) Band 1 - 6. Setting. 1 GHz Result should be 1.04166MHZ Actual Measurement 1.041616MHz A8 Fractional -N Band 0 Output Setting 5MHz. Result Should be 120.16 MHz. Actual Measurement No distinct signal I have added pics from CW Testing showing the frequencies and Bands affected. And the 20MHz - 550Mhz segment. My questions: 1. Would you agree with A8 Fractional board being bad? 2. Are there A8 Boards available in the < = 500 dollar range.
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HP 8702D - What is the latest firmware?
Hello, I am searching for a few days for the 8702D firmware without any luck. I saw some CPU boards on eBay showing version 6.14 on the EEPROMs. Does anyone have the firmware files? Is the Lightwave Analyzer 8702D supporting version 7.x firmware? Thanks, Razvan
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HP8510C "system bus address error", but then it works
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Got my hands on a 50GHz 8510C with test set and source, everything mounted in a mobile rack with a pullout table. When I switch it on, it says "caution: system bus address error", but them it proceeds to function OK. Both the test set and source respond to commands. I have checked the addresses, and they are set as specified in the manual, both on the instruments and in the HP-IB setup menu. Not much of a problem, since I can use the analyzer, just a bit annoying. Any idea how to fix this? Marko Cebokli
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HP 8482B
Hi all, I have acquired the above sensor with the matching attenuator. It zeros but takes a couple of hours to stabilise. before I start digging to deep is this something that can be repaired easily? thanks tony
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Wanted WR 08 and WR 10 components
Wanted WR 08 and WR 10 components Hi all I live in the UK and I am looking for wave guide items and wondering if anyone can help me with the following Power measurement 70 to 110 GHz WR 10 Power measurement 90 to 140 GHz WR 8 Directional coupler 90 to 140 GHz WR 8 preferably 10 db or 20 db Wave guide load to go with Directional coupler 90 to 140 GHz WR 8 good for 50 mw Frequency multiplayer with an output on 140 GHz Please privet message me Regards Paul
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HP8756A - cal data backup and recovery - FYI.
Hi to the HP-Enthusiasts, Dear Aaron! On the weekend Aaron approached me because of the work I have done to re-program my HP8756A scalar analyzer with fresh calibration data. My analyzer lost data quite quickly and that was because one of the caps developed a signigicant leakage current. So I replaced all of them and added a larger Li battery to the CPU board. For programming, I used (in the 2000s) a sun workstation and the sbus GPIB adapter which was in there, so that code is not of much use nowadays. But the procedure was as follows: Using a calibrated HF-voltmeter, I created a table of the output power of my 8350B generator for all attenuator steps. Than I connected the detector to the 8350B and made a measurement using the un- calibrated 8756A (with cleared calibration data). From that, I calculated correction polynomials for all three channels, (taking into account the frequency and the correction value printed on the detector head for the frequency I was running at). In a last step I wrote the polynomal into the 8756A and after that it gave the correct readings as measured with the HF-voltmeter. Attached is the C source file for your amusement (there you can see how the polynomial gets written). Should not be hard porting that to a modern platform. (1) USE AT YOUR OWN RISK (2) Would be happy if you mention my work ;-) Best wishes, Erik. www.baigar.de P.S. Of course a much better method would be analyzing the 8757 cal program (which does not work with the 8756A of course!)... https://www.keysight.com/us/en/lib/software-detail/instrument-firmware-software/11613b-windowsbased-calibration-software-files-sw485.html ...on how to drive the 11613B calibrator... https://www.keysight.com/us/en/support/11613B/calibrator-for-scalar-network-analyzer.html ...and with the knowledge from my c code creating a new, nice calibration software (preferrably for linux ;-)). Actually I have got one of the 11613Bs, but the project never has taken off... P.P.S. The only reason to bother with the 8756A is, that I have the equipment doe measurements up to 18G which is not the case for my VNWA. ----------------------------------------------------------------------- ''~`` ( o o ) +--------------------------.oooO--(_)--Oooo.-------------------------+ | Dr. Erik Baigar Inertial Navigation & | | Salzstrasse 1 .oooO Vintage Computer | | D87616 Marktoberdorf ( ) Oooo. Hobbyist / Physicist | | erik@... +------\ (----( )---------------------------+ | www.baigar.de | \_) ) / +----------------------+ (_/
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16-pin Connector Part Number for 11713-60044 cable
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Hi Guys, Does anyone have infor on the 16-pin Connector Part Number for 11713-60044 cable? Mates with many RF switches and Step Attenuators. Thanks & BR' Ilan 4X6MU
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Hi All, Has anyone seen and fixed this error before I pull the case? Thanks Chris
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hello everyone Bonjour a tous... This fine 80 MhZ AWG (circa 2016) needs a full calibration similar to the 33220A 20 MhZ. Do either of these generators, use a back up battery or NV ram that can lose the calibration Constants over the years? Can calibrate in a few hours? Any tips or experience (on either part number) is appreciated. Bon Soiree jon
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Agilent/Keysight ENA 5071C Receiver Gilbert Cell Mixer 1GC1-4405
I have been fixing some 5071C ENAs. Many of them have bad receivers. Upon doing some tests & research, I noted that the Gilbert Cell Mixers were bad. This is generally on port 1 on roughly 5 of 10 units, probably due to overheating from the units being left on day and night for years. These mostly have the part number 1GC1-6234. Some have 1GC1-4234. But today I opened up a more recent version which has part 1GC1-4405. Replacement parts for any of these are expensive and hard to source. It appears that 1GC1-4298 is a suitable replacement for the 1GC1-6234 and 1GC1-4234. What I haven't been able to figure out is if the 4298 can be used to replace the 1GC1-4405. Is there anyone who can provide any insight on this? I've contacted Keysight in the past on this unit, but they pretty much just want me to send them the unit so that they can fix it and charge us accordingly. cheers-
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HP 8702D OPT 011 conversion to 6GHz
Hello, I bought an 8702D which I didn't receive yet and I am doing some research in the meantime for the Test Set compatibility and also OPT 006 for a 6GHz upgrade. From my understanding if I buy the 85047A Test Set I will not be able to use the doubler in the Test Set because it needs a 6GHz source inside the 8702D. Practically the doubler is not used at all for the 8753D/8702D. I don't understand how exactly it will work, when I will use the 6GHz band, it will show that via the LED on the front panel but it will not include the doubler in the RF path? Doubler will be included in the RF path only if the VNA is 8753A/B/C model? So now I am looking to replace the source module and I found different modules but I am not sure which one is compatible. I don't want to buy something that will not be compatible since these are not cheap. - 08753-60146 (08753-69146) this one seems to be a 6GHz source but it is used in 8753E/ES. Seems to use the same YIG and VTC Oscillator but it has some attenuator attached to the assembly. Form factor seems to fit. - 08753-60003 (08753-69003) this one seems to be also a 6GHz source and I found that this was used in 8753A/B/C/D ?! Is this correct? This one has 2 PCBs stacked and there is no attenuator. It has an assembly that seems to contain ALC/LVL modulator, mixer, amplifier, etc. Do you know if there other source assembly part numbers that I can search for and what is the compatibility with the 8702D? As for the Test Set from what I read there are 2 versions of the 85047A, the older model with coaxial switch and the newer one with the solid state switch, newer one has prefix 3033A and the older one has prefix 2729A. Do you know other prefixes for the two versions? Regards, Razvan
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Checking an 8402B Calibrator
6
Hey All, I'm looking at an 8402B calibrator, and the manual says that the measurements need to be done with a floating DMM that has a greater than 100Mohm input impedance. The manual says to use an HP 740B - I don't have one of these, so I'm thinking of using an HP 34401A with an OpAmp Voltage Follower to buffer between the 8402 and the 34401. Has anyone done this before and could provide any insights? Thanks, TonyG
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HP8561E Jittery Display
Hi, I've some HP specans just obtained as BER items from a local space communication site. The first one I'm looking at is an HP8561E, it powers on OK and the display is bright but the text is jittery and almost unreadable. I'm guessing "check out the PSU, Paul" is the way to go but does anyone have any insight on this model/fault they might like to share? I'm also looking for component level schematics etc. The other items I have are all HP859x series. Any info welcome thanks Paul
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HP 8902A Measuring Receiver
2
To anyone with HP 8902A expertise, My HP 8902A is in need of repair and some expert advice would be most helpful. Before going into details, I would like to hear from someone who is willing to assist. 73 Raymond ON4DBV
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ftp.agilent.com tar-file on archive.org
8
The Internet Archive has what appears to be a snapshot of ftp.agilent.com from 2014. Link is https://archive.org/download/ftp.agilent.com. The file is rather large (317GB) and an attempt to download failed after approximately 220GB. I don't want to blow my monthly data plan and thus decided to wait a little before attempting it again. The Internet Archive allows the download of individual files from the tar-ball, but I'd rather have a replica of the whole site to browse and explore locally. Has anyone successfully downloaded this tar file? Don't want to waste time and bandwidth if the file is known to have issues. Thank you, Wolfgang KI7PFX
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Joining group
3
Dear group manager, Which procedure must be followed to join this group? 73 Raymond ON4DBV
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HP8566B with YTO unlock indication appears to have no YTO output at all
5
I have never encountered a bad YTO in a 8566, but this might be one. I just got this unit and had some time to check it out, assuming typical small problems. I'll have to bring a scope out to my truck next - it's the only place left where I can park enough equipment and have some flat space to actually work on it. I figured the unlock was for common reasons, and looked first with a counter at the 1LO output and found nothing. Since microwave counters can't get a reading sometimes if the frequency is flailing around, I next put a 436A and 8484A on to see if there's any RF power at all regardless of frequency - nope. I haven't exhaustively checked the possible reasons for no YTO signal yet, so all the supplies will be next up for ripple etc - the DC values seem OK but the scope will say for sure. I have to get familiarized again with this beast since I haven't worked on the main RF section guts in a few years. Then all the usual other stuff to check out in the connections, signal paths, and support circuits. So far everything looks normal control- and display-wise, except there's no input signals showing above the noise floor in any band, which makes sense if there's no 1LO at all. I think all the internal PLL and other indicator LEDs are showing normal conditions. The unit overall looks very clean inside, and complete. One odd thing is that someone in the past had put the little front panel SMA 2IF I/O link in the wrong spot - the IF out was tied to the 1LO and the IF in was terminated. I don't think this could have possibly hurt anything. Should the worst be the case, I have spare YTOs, but I'm hoping it's something simple in the circuitry to be discovered. Anyway, while I study and revisit the manual and start poking around, I figured I'd check to see if anyone has seen this sort of problem before. Ed
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Hello everyone. Suddenly my spectrum analyzer (HP 8566B) has the following problems: the low band signal is about 40 dB lower than it should be. The high band has stopped working: the various bands no longer appear on the screen, but a single band similar to the low band and the signal is completely absent! I strongly suspect that the YTX oscillator is dead or almost dead! Does anyone have any ideas about this? Thanks. Images: HP8566B and output at first LO connector. IMG_20250504_121626.jpg (89.93 kB, 1000x750 - viewed 13 times.) IMG_20250504_121605.jpg (122 kB, 1000x750 - viewed 16 times.)
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Sat 8:39am
Sat 8:39am