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 Ω) 350C
- Attenuator set (600 Ω) 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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I came across one and it still works, but... Not sure I have the strapping right on the back terminal strip.
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File /All HP, Agilent and Keysight instruments in folders by part numbers/000 to 999/437B High Performance Single Channel Average Power Meter/HP 437B Service Manual - Including Schematics and Service Notes.pdf uploaded
#file-notice
The following items have been added to the Files area of the [email protected] group. /All HP, Agilent and Keysight instruments in folders by part numbers/000 to 999/437B High Performance Single Channel Average Power Meter/HP 437B Service Manual - Including Schematics and Service Notes.pdf By: Samudra N3RDX S21X <samudra.haque@...> Description: thanks to Boat Anchor Manual Archive - thought it is relevant to those who worship the HP 437B RF power meter. Happy Hunting. https://bama.edebris.com/manuals/hp/437b
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HP 4193A Vector Impedance Meter - Looking for info on the special Adjustment Board
I have a working 4193A with probe. I went through (nearly) all adjustments, but gut stuck on the ALC Ref Voltage Adjustment (A13) and the IF BPF Gain/Phase Adjustment (A12). Both adjustments call for a special Adjustment Board 04193-66564. I was not able to find any information on that extender board that obviously has switch on it. I would appreciate any information on that board. While all adjustments performed so far were right on the money, I really would like to get everything set up correctly. Thanks, Herbert
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I have an E4402B spectrum analyser with an odd power fault. The SA powers down after about 10 minutes, but works fine up until then. (It has been working well in the past but has been unused for a year or two. I want to try powering it from 12V DC to see if that makes any difference. Does anyone know the polarity of the two-pin connector on the rear? And I assume that no-one has rea;l schematics for this unit. I can't find them anywhere. The service manual has just block-level detail. And could a failing Snaphat battery on the CPU board have any effect on powering up and down? It's 7 years old according to the sticker. any help gratefully received! -Jeremy
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54831M Booting Problem
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I'm working on restoring my 54831M, but have run into a weird error. With the original Win95 (maybe 98, don't remember which one its on), I can't get it to boot past the Infinium splash screen. I have tried using the OS recovery CD that is Agilent software version 2.20, but that is giving me the same result. It appears to boot into Windows alright, but does not advance past an infinium splash screen, no menu, nada. The PS2 keyboard I am using freezes up, even the numlock/capslock go unresponsive. Switching the drive over from my 54832B allowed it to boot into XP and I do see waveform acquisition data at least (although it is very slow/laggy to navigate). The front panel buttons and lights do absolutely nothing here even within the selftest menu of the Win XP 54832B drive, and I am not sure if it is a Win XP driver problem or a hardware problem (since I cannot test it in 95). Are there any drivers I maybe need for Win XP that differ from the 54831M and the 54832B which I don't have? Or is there something else likely to be the problem here. I'm thinking there might be a chance the HDD is cooked, although it seems to test ok using a USB IDE adapter in Win 10?
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HP 4957A Protocol Analyzer - looking for disks
Hey all, I'm playing with an HP 4957A protocol analyzer and looking for some of the software that came with the ISDN/T1 pods. I know CuriousMarc has some of the standard disks but curious if anyone here has disks for some of the other pods, such as the HP 18281A BRI ISDN pod? Also looking for software/restore disks for Agilent J6803B Network analyzer as well. Thanks, Jeff
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Hi Andrew, This is the detail of the "short crystal", and yes, it is possible to do it easily. Yves De : [email protected] <[email protected]> De la part de KB2LMN via groups.io Envoyé : 6 avril 2025 20:17 ? : [email protected] Objet : [HP-Agilent-Keysight-equipment] 8591E CAL AMPTD failure I’m moving on to my next SA and when performing Cal Amptd test I’m getting. CAL: RES BW AMPL FAIL from what I see I will need Crystal shorts (set of 3) can these be made? Andrew
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Manuals for an HP3456B DMM?
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Does anybody know where I can find manuals for an HP3456B DMM? The HP site has a manual for the 3456A, how different is the 3456B from the 3456A? Thanks, BobH
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HP8935 Spectrum Analyzer Markers
Is there a way to take control of the spectrum analyzer marker position on a HP8935 and dial it around like you can on a basic spectrum analyzer? Thanks Jeff KC8VFN
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After replacing battery I entered the Time Base Correction, Frequency Response Correction & Step Attenuator Corrections. Now when I go to perform Cal Freq or Cal Amptd I’m getting a Cal Signal Not Found. I checked the CAL OUT and I’m seeing 300.000824MHz -20dBm on my Spectrum Analyzer. Input using an HP E4432B Signal Generator set 300MHz -20dBm I’m seeing 300.8MHz at -28dBm. As I change the Span I get different frequency’s showing? Andrew
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8495G Step ATT OPT 011 5V Cable Pinout
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Hi, If anyone can pls help with the cable pinout for the 8495G Step ATT OPT 011 5V. Service Manual Documentation is not clear or missleading, it doesn't show where the common Ground and +5V go. Thanks, Ilan Yacobi 4X6MU
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Does anyone have 41901A SMD crystals PI-network test fixture? https://www.keysight.com/gb/en/assets/9018-01432/user-manuals/9018-01432.pdf I would like to have a good close-up photos of what the contact board, load capacitors board and positioning plate look like. Thanks Leo
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I wonder if anyone here has experience or access to an Agilent E5052A signal source analyser? Mine is about 20 years old and is recently showing signs of unreliability. The main symptom is an occasional power on self test fail and it then reports issues with a 3V3 power supply voltage on the A3 DSP/ADC board where it reads low at typically 2.96V. I think a pass requires >2.96V but this may be firmware dependent. My E5052A is running the latest firmware V2.51. I think this 3V3 supply is common across the backplane but it gets reported as an A3 test in the service menu. The 5V PSU rail also reads low at between 4.7 and 4.8V but this is still a pass (shows true for the test result) Also, for several years now it has shown a stubborn internal spurious at 60 kHz at a very low level. This very slightly spoils any phase noise measurements even though it shows up at about -140dBc then the trace is in phase noise mode in dBc/Hz. I'm not sure what causes this internal 60 kHz term, it may be from a PSU or the display or a divided clock. It may be that the 60kHz spurious term is a feature of this analyser as it is present on all my plots dating back over 13 years. It's not caused by anything nearby to the instrument as it does it regardless of position or proximity to other equipment. Plus the other E5052A I've used in the past (in a different location) is exactly the same. The 60kHz spurious is also present when I swap across to the baseband input even with a very clean LF signal fed to the 0-40 MHz baseband input. So this spurious must be getting in at the ADC if it affects the baseband input as well. I've seen similar on another E5052A that also shows a lowish 3V3 voltage (but it never shows a power on test failure) and it also has the permanent 60 kHz spurious on all phase noise tests on the main RF input. The service menu password is only three characters long and is 'kid' If anyone has access to a healthy E5052A could they enter the service menu and do a manual Power On Test (POT) in the service menus? Then report the 5V and 3.3V results for the A3 module Mine shows anything from 2.91V to 3.05V and I think the pass/fail threshold for the POT is somewhere around 2.96V. The other E5052A I have some access to shows 2.982V to 3.08V and never reports a POT failure. Thanks in advance for any replies Jeremy
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Fail over input board for the HP-5087A distribution amplifier
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Recently saw a you tube video of an HP-5087A with an HP designed (I think) fail over amplifier board. I have never seen any documentation on the board before. The board takes a signal from two of the input channels, say A and B and if the A input fails fails, it switches over to the B input. Going to try a modernized version shortly if there is any interest.
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I have just bought an 8591A that has an intermittent REF UNLOCK error message when I use the internal 10 MHz reference. The error comes every 0,5 to 10 second. The internal reference is 10,000 MHz and the amplitude is around 350 mV peak to peak. The waveform is a bit distorted - not a clean sinus wave. The error REF UNLOCK disappears if I connect an external 10 MHz reference - If the amplitude is exactly 130 mV peak to peak. If the amplitude is higher than 140 mV peak to peak, the intermittent error REF UNLOCK comes back. Also if the external reference is adjusted lower than 9,98 MHz or higher than 10,02 MHz the error REF UNLOCK disappears even if the amplitude is higher than 140 mV peak to peak. My 8591A has serial number 3122U01724 and software revision 7.5.91. I have checked the Service Manual but it does unfortunately not contain any drawings of the A25 Counter Lock Assembly. I am very grateful if anybody has any suggestions!
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Ok I replaced the battery this am and all went great, yes I did copy the info as the manual states. my new issue is the display as you will see in this video. I thought maybe I missed a connection when I re-assembled so I took all apart and checked and nothing was disconnected or wrong. https://youtu.be/QGJ8quU_MiM?si=6P0sZImvJVhGCgMF The Voltages look good according to the Power Supply indicator lights. D1 - D16 all lite when powered on and go off with the exception on D13 as I believe this is normal? Any suggestions would be appreciated.
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I have Agilent CXA Signal Analyzer N9000A, I'm getting these errors, please help. I referred manual and it suggested to check 50Mhz with -24dB, But when I check in my equipment its showing 50Mhz with -60dB. While I trace it out it was across H270(HMC270MS8G) where I was getting 50Mhz with -60dB but near FPGA it is exact 50Mhz with -24dB, so does it represent there is problem with H270 or any other if yes please help me, And any blue print of this will help a-lot.
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HP8920B Blowing Fuse
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Friends, My beloved HP8920B RF Communications Test Set started blowing the 5A AC fuse today. It blows as soon as you push the power switch. I am wondering if there is a common problem I could look for. Tomorrow I may try to see if it will run on 12VDC. It has a connector and switch for DC operation. Any advice appreciated. Thanks! Jeff
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HP 8594E battery power
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Anyplace to attach an outside power supply so data doesn’t need to be re-entered when replacing battery? Andrew
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HP8935 displaying AA Memory Battey Low Message
Friends, My HP8935 is displaying the AA Memory Battey Low message, but the batteries are not low. I am wondering if anyone else has experienced this. Thanks! Jeff KC8VFN
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