Author Topic: Gigatronics 8652A power meter (Read 4600 times)

romal76 · « **on:** April 22, 2021, 06:01:05 pm »

Hi All!

Looking for operation manual, maintenance(service) manual and firmware binaries for Gigatronics 8652A power meter

yus · « **Reply #1 on:** August 22, 2021, 02:05:26 pm »

Did you find anything ?

romal76 · « **Reply #2 on:** August 22, 2021, 02:26:57 pm »

Unfortunately, no
only two eeprom dumps from my burned 80701

yus · « **Reply #3 on:** August 22, 2021, 03:36:06 pm »

I may have to disassemble mine because the cal ref level is off, and there is no menu option for adjusting it. If you have Gigatronics 8652A, do you know: What is its controller ? Is the rom outside the controller and is readable?

romal76 · « **Reply #4 on:** August 22, 2021, 06:19:39 pm »

I was find some service manual, but information is not much
more info what is inside of 8652A will be in a few days

romal76 · « **Reply #5 on:** August 22, 2021, 06:28:16 pm »

option 12 calibrator 50mhz/1ghz fotos from web

yus · « **Reply #6 on:** August 22, 2021, 07:56:51 pm »

There is nothing to adjust there. Gigatronics calibrator ref level is set up by setting a CALFAC number. The older meters like 8541\8542 had access to this through menu:
MENU -> SERVICE MENU ->CALIBRATOR -> EEPROM -> SNumb (unit serial number) -> CALFAC change
but their calibrators were fixed 50MHz.

The newer 8651/8651 series apart from 50MHz also have a range of frequencies from 800MHz to 1GHz, option 12. So they may probably have two or more cal factors.
What I need is know is how to access, change and save the CALFAC-s on the newer models. There must be an external programming protocol or hidden service menu or both.
The cal-labs calibrating these meters certainly know how to access the CALFAC-s.

romal76 · « **Reply #7 on:** August 22, 2021, 08:08:48 pm »

p.21 in service manual, maybe it is what you need

2.2.3 1 mW Reference Output Adjustment

yus · « **Reply #8 on:** August 22, 2021, 08:26:41 pm »

Do you have a service manual for 8652A ?

romal76 · « **Reply #9 on:** August 22, 2021, 08:28:25 pm »

Quote from: romal76 on August 22, 2021, 06:19:39 pm

I was find some service manual, but information is not much
more info what is inside of 8652A will be in a few days

attachment in this post is service

yus · « **Reply #10 on:** August 22, 2021, 08:57:40 pm »

Looks like this is EXACTLY what I was looking for. MANY THANKS. I was not able to find this manual.
And what are you looking for: schematics ?
If you get something else please keep me posted.

romal76 · « **Reply #11 on:** August 23, 2021, 04:44:19 am »

Yes, now I still looking for schematics on all gigatronics power meters and maybe firmware files, for example to make 8542C from 8542B as I was do with anritsu ML2407 and ML2437

picburner · « **Reply #12 on:** August 23, 2021, 05:12:48 am »

Attached are the firmware v1.35 and v1.55 for Giga-tronics 8650A series (8651A & 8652A).
I don't own these instruments so all the help I can provide ends here.

romal76 · « **Reply #13 on:** August 23, 2021, 05:57:20 am »

Thanks, will try.

yus · « **Reply #14 on:** August 24, 2021, 09:55:40 am »

@ picburner. Thanks a lot for the files.
@ romal 76. I have 8652A and I was also curious if it is possible to convert 8652A into 8652B. I only have schematics of 8540C, if you have something else, can you share ?

romal76 · « **Reply #15 on:** August 24, 2021, 04:00:43 pm »

I'm interested in schematics of 8540C too, please share all you have.

rainbow · « **Reply #16 on:** November 09, 2022, 04:39:43 pm »

Someone has found the schematics for the 8650(A/B) series? And how to update the firmware via RS232?
thanks

rainbow · « **Reply #17 on:** April 13, 2023, 06:12:21 am »

At https://web.archive.org/web/20071018084015/http://gigatronics.com/support/index.php?p=5 I have found that giga-tronics was distributing the utility to upgrade/reflash the firmware. Unfortunately, the binary is not archived. Someone has the file? I am desperately searching it since my 8651A is dead and everything seems ok. Thank you

delat · « **Reply #18 on:** July 05, 2023, 02:36:33 pm »

I'm looking on photos of the Giga-tronics and HP sensors on eBay and looks like power meter connectors are the same. Is it possible to use HP sensors with Giga-tronics meter and vice-versa?

rainbow · « **Reply #19 on:** July 05, 2023, 02:48:14 pm »

No, they are different. See attachment.

delat · « **Reply #20 on:** July 05, 2023, 03:05:47 pm »

Thank you. Probably it is stupid question, but is anybody tried to repair probe with BAT24-02LS? https://www.infineon.com/dgdl/Infineon-BAT24-02LS-DS-v02_00-EN.pdf?fileId=5546d46265f064ff016638964eed4e95
Of course, it will require to full recalibration but looks like it is possible as for me.

delat · « **Reply #21 on:** July 10, 2023, 05:09:43 pm »

Is it possible to test measurement unit without sensor? I got one as broken. But I still haven't any sensors. The unit is booting properly. And allow to change calibrator frequency up to 1GHz while missing Option 12 lable on backside.

rainbow · « **Reply #22 on:** October 31, 2023, 09:17:14 pm »

Any news about schematics and/or software upgrade? thank you

rainbow · « **Reply #23 on:** November 01, 2023, 04:32:48 pm »

In attachment the firmware with the procedure. Get the latest firmware version from the picburner's post.

rplabs · « **Reply #24 on:** February 12, 2025, 03:43:55 pm »

The old Giga-tronics website had available "V1.58.bic" firmware file for 8650A but that was not archived by Archive.org. Anyone has that firmware version? I am not sure if Spanawave released something newer since they don't even have an email address for contact. I see only phone numbers there...


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Author Topic: Gigatronics 8652A power meter (Read 4600 times)

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