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Thread: HP-8593A How to know if I have option 026 up to 26.5 Ghz ?


Permlink Replies: 6 - Pages: 1 - Last Post: Jul 29, 2012 7:48 PM Last Post By: yngvae2 Threads: [ Previous | Next ]
hafrse

Posts: 4
Registered: 06/14/11
HP-8593A How to know if I have option 026 up to 26.5 Ghz ?
Posted: Jun 14, 2011 5:22 PM
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Hello,

I have aqcuired a 8593A analyzer, how can I tell if this unit has option 026 (26.5 ghz option) ? the label where the serial number and options is not there. However I can select frequency up to 27 Ghz but has no generator to test.

many thanks in advance!

Georg
Mike M


Posts: 233
Registered: 04/10/07
Re: HP-8593A How to know if I have option 026 up to 26.5 Ghz
Posted: Jun 15, 2011 12:11 PM   in response to: hafrse in response to: hafrse
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The option 026 instrument had a different input connector (3.5mm), attenuator, mechanical switch, YTF, as well as the cables that connected them to each other, but I can't find a service guide for the part numbers...

This may seem like a simple question, and I admit that my memory may be fading a little bit, but doesn't the front panel give you the frequency range?
hafrse

Posts: 4
Registered: 06/14/11
Re: HP-8593A How to know if I have option 026 up to 26.5 Ghz
Posted: Jun 15, 2011 11:57 PM   in response to: hafrse in response to: hafrse
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Thanks Mike,

You are 100% correct and according to the manual, I also checked the YTF part number, it only goes to 22 Ghz. Also there is a sub menu under CONFIG where it shows all the options, 026 is not listed.

Best regards,
George
hafrse

Posts: 4
Registered: 06/14/11
Re: HP-8593A How to know if I have option 026 up to 26.5 Ghz
Posted: Jun 16, 2011 2:49 PM   in response to: hafrse in response to: hafrse
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Hi again,


I found one post on eBay selling a 8562A 9khz-22Ghz and claiming this:

"....works up to 26.5 ghz even though the front panel says 22 ghz. the newer firmware and models from late 89 to 1992 usually support 26.5 ghz without having option 26 . It has been fully tested with my 26 ghz signal generator and works with no issues, noise-floor sensitivity,flatness, attenuator, and stability tests flawlessly within spec .."

Mine is from 1990 and has the range in the software which goes up to 27Ghz, I think even though the seller claims that, the performance are not garanteed at thoes "unsoported" frequencies and that is why HP sells the 026 option separatly of these recent modells.
The problem is that I can not verify since I do not have a signal at that frequency...


George
Mike M


Posts: 233
Registered: 04/10/07
Re: HP-8593A How to know if I have option 026 up to 26.5 Ghz
Posted: Jun 16, 2011 3:25 PM   in response to: hafrse in response to: hafrse
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That may be, I didn't have much experience with the 8560 series back then, but I'm sure that HP didn't guarantee the performance to 26.5 GHz.

Just so you know, the guts of the 8562A is completely different than your 8593A...
yngvae2

Posts: 20
Registered: 01/28/11
Re: HP-8593A How to know if I have option 026 up to 26.5 Ghz
Posted: Jul 29, 2012 7:46 PM   in response to: hafrse in response to: hafrse
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i bought one of his 8562a and it indeed does perform up to 26.5 ghz however around 25.5 to 26.5 ghz the noise floor is a db or so out of spec. thus why agilent didnt guarantee it . because you have to boost the gain up at that part.
yngvae2

Posts: 20
Registered: 01/28/11
Re: HP-8593A How to know if I have option 026 up to 26.5 Ghz
Posted: Jul 29, 2012 7:48 PM   in response to: Mike M in response to: Mike M
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no the front panel doesnt give you the range unless you select the freq center. it stops at 22 ghz. but if I can figure out how to reprogram the rom so it thinks it has opt 26 then I can use 26.5 initiate to make full span sweep up to 26.5 ghz and still be within spec. anyone know how?

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