Re: Send out HP8921A or try to repair myself
On 05/12/2022 6:49 PM, Jeff Otterson wrote: Just to close the loop on this, I sent my 8921A to Amtronix.? Rick got it all fixed, and also replaced the electrolytics in the power supply, semi-affordably.? I'm happy. Glad Rick got you fixed up. He's always treated me fairly. The hardest part about shipping 892x's to Rick is the packing and shipping costs. I have a box that has made a few trips back and forth to Amtronix that I save just for that purpose. Bob...
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Re: 8920a Firmware/ memory upgrade
Hello, Alberto.
Go to /g/HP-Agilent-Keysight-equipment?
In the files section. Here is a link that should take you right to it.
/g/HP-Agilent-Keysight-equipment/files/8000%20to%209999/8920/8920A%20%20Firmware%20hex%20files
Greg
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Re: 8920a Firmware/ memory upgrade
Hello Greg,
I also happen to have my 8920A under repair, and I'd like to upgrade FW A.06.12 to a more recent one. Do you have any download links for later firmware?
Thank you in advance.
Alberto
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Re: 8920a Firmware/ memory upgrade
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-------- Original message -------- From: jyelmgren <jyelmgren@...> Date: 5/12/22 2:00 PM (GMT-06:00) Subject: Re: [HP8920/8935 Family] 8920a Firmware/ memory upgrade
usually that goes without a problem.? Some of the programs may need the larger memory though. Usually updating the memory is not an issue either.? The chips are still around as well, I would backup the calibration EEPROM data first though
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Re: Send out HP8921A or try to repair myself
Just to close the loop on this, I sent my 8921A to Amtronix.? Rick got it all fixed, and also replaced the electrolytics in the power supply, semi-affordably.? I'm happy.
73
Jeff n1kdo
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Re: Anyone familiar with the HP 8922?
Thanks everyone
From the manuals , I think that G8RPI is correct, It would be a spectrum analyzer with a 5 KHz resolution on the screen. and a freq gen.
Maybe also an audio gen and a freq counter in narrow Rx ranges.
Not as useful as my 8935.
It is also quite heavy.
Again Thanks.? Wally KC9INK
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Re: 8920a Firmware/ memory upgrade
usually that goes without a problem.? Some of the programs may need the larger memory though.
Usually updating the memory is not an issue either.? The chips are still around as well,
I would backup the calibration EEPROM data first though
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Re: Anyone familiar with the HP 8922?
Almost totally useless for analog radio work. At best you get a CW RF Generator and a fairly crippled spectrum analyser.
They are not worth the space.
The 8924C is another matter. Looks the same but it is a 8920B with a GSM adaptor in a 19" box. It retains all 8920B functionality.
Robert G8RPI.
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8920a Firmware/ memory upgrade
Hello, all.
I have an early 8920a sn 3211Axxxxx with version A.6.11 firmware and option 005 (memory upgrade) and would like to upgrade the firmware to A.14.14. I have the eproms (dip type) already programmed. However, the memory board?08920-60166?is missing two SRAM ICs U29 and U30 so apparently it wasn't a full 512k upgrade. Can I add the missing SRAM, install the new firmware and have a successful upgrade? Is it that simple or is there something I am missing??
?
Best regards,
Greg Latus
WB9TRO?
?
?
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Re: Anyone familiar with the HP 8922?
George:
Gosh, Sorry, it is the 8922M
Yea the models are significantly different.
Wally
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Re: Anyone familiar with the HP 8922?
Hi Wally
Which flavour of 8922, there are a number of variants, most dedicated to GSM mobile work
George G6HIG Dover UK
On Thursday, 12 May 2022, 12:48:41 BST, Wallace Gasiewicz via groups.io <wallydoc@...> wrote:
I have an HP 8935 and use it almost daily.
I am wondering about the capabilities of the 8922 for use HF and VHF and UHF radio servicing , does anyone have any experience.
I do not thin the 8922 can modulate the RF output, (maybe FM modulation) Am I correct?
I do have lots of HP manuals for this unit.
Wally KC9INK
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Anyone familiar with the HP 8922?
I have an HP 8935 and use it almost daily.
I am wondering about the capabilities of the 8922 for use HF and VHF and UHF radio servicing , does anyone have any experience.
I do not thin the 8922 can modulate the RF output, (maybe FM modulation) Am I correct?
I do have lots of HP manuals for this unit.
Wally KC9INK
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I'm downsizing my equipment collection and don't really need 3 service monitors. So I've decided to sell my 8920B.
It's in very good condition and has OPT055 so goes down to 400kHz.
Send me a private message if interested. I'd prefer collection, It's located in Cambridge, UK.
Robert G8RPI.
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Added Folder /8920AB Power Supply Information Schematic
#file-notice
jyelmgren <jyelmgren@...> added folder /8920AB Power Supply Information Schematic
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11807E Options 001 and 100 binary .bin anyone?
I have a freind trying to write a Flash card for me and apparently the native files won't work, I need a binary image. I found a binary image of option 100, but none for option 001 and I suspect I need a concatenated? (Is that right term?) binary of both to make one card. Has anyone got that laying about?
TIA Joe K4SAT
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Re: 8920B and RFDIAGS2 error
This is common issue to the 892X series including the 8920A and 8921A.
If fitted with certain options they may require a jumper on the rear for the unit to be operational without the external adapters.
Not that uncommon on HP Agilent gear? ...often needs a jumper for the reference and LO signals.??
Used to see a lot of gear being sold as defective when the rear jumpers were missing and most likely the cause of the problems.
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Re: 8920B and RFDIAGS2 error
As an FYI for anyone looking for the answer on this - Yes, it appears that if your 8920B comes with the option that works with an 83206A (or I would assume any of the other test sets), then W13 will actually be taken to the back of the unit.
I used one of the cables that connected those ports to the 83206A to connect the appropriate ports and my unit passed the RFDIAGS2 tests.
TonyG
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Hi All,
Cleaned off the bench and took 83206A off the 8920B - Thought it would be a good idea to run the diagnostic programs that are on the system ROM - Unit passes power self-tests but when running RFDIAGS2 I'm getting errors during the Output section of the test program.
The first error is in the "Output Detector, Detector Caps" phase. The 4 tests check two caps, C419 & C418 both in and out of the circuit together and individually. I get the same result for every test indicating an actual Vdc of 0.038. The diagnostic suggests that the path is A25J55 to A25J56 - From poking around this seems to be W13, a semi-rigid short jumper.
The next set of errors is in the "Output Frequency Range, Loop Closed" phase. It shows a value across the frequency range of 0.038 to 0.041 and again suggests W13. Finally, there are errors in "Bandwidth Control" again pointing to W13.
From reading it seems that W13 is a bit of a known problem child but before opening the unit up and trying to gently clean it, I wanted to ask the group if this could be a false flag from removing the 83206A? Would they have removed that jumper in the expectation that the path would continue through the external 83206A?
Any comments, thoughts, or suggestions are appreciated.
Thanks,
TonyG
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Re: Recommended software for the 8920B?
7-zip has problems with older versions of the app.? I've seen it happen in winrar files too.? I'd recommend upgrading to the latest version and try again.? Guess how I know?? O:)
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HP8935 IQ Calibration Unable to pass, prompt: input signal setup
#file-notice
After maintenance, it can't run now. The input signal of ant port is too low to detect. These can only run after calibration. At present, I don't know how to solve them. Do you know,
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Jeff Otterson n1kdo
RFI-EMI-GUY
Alexandre Souza