Products > Test Equipment

Upgrading Counter 53220A to Option 010 Ultra High-stability OCXO Timebase?

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HighVoltage:

--- Quote from: carl_lab on November 17, 2016, 02:55:42 pm ---
--- Quote from: HighVoltage on November 17, 2016, 02:49:35 pm ---I have a 53220A without OCXO and the drift was horrible but an upgrade was expensive.
Actually, I got a 53230A with installed OCXO for less money than then upgrade of the 53220A.

--- End quote ---
Can you post a picture of the OCXO and its footprint on PCB, please?

--- End quote ---
Both of  my counters are still under warranty and have Keysight calibration stickers.
I am hesitant to remove them.
May be I will try Dave's way of removing them in a safe way, when I am back in my lab tomorrow.

carl_lab:

--- Quote from: plesa on November 17, 2016, 03:48:31 pm ---Question is if you really needs certificate I do not think KS as default providing any certificate and calibration will be additional fee.
--- End quote ---
I'm not quite sure about.
Maybe changing the OCXO to a 3rd-party part and calibrating the counter with tolerances of the original Opt. 010 is sufficiant. 2000 bucks for upgrading is "just a little bit" too expensive for my understanding...

Main purpose of the 53220A counters is adjustment of clocks.


--- Quote from: plesa on November 17, 2016, 03:48:31 pm ---Do you know Timelab software?

--- End quote ---
No. It's not a laboratory application, so how could this software help anyway?

carl_lab:

--- Quote from: HighVoltage on November 17, 2016, 03:58:29 pm ---Both of  my counters are still under warranty and have Keysight calibration stickers.
I am hesitant to remove them.
May be I will try Dave's way of removing them in a safe way, when I am back in my lab tomorrow.

--- End quote ---
Oh, please don't do it!
I don't want to be responsible, if you lose your warranty.

nfmax:
It looks like these counters have a reference frequency input. Can you not use an external reference source, with suitable calibration certificate? This could be almost anything with a sufficiently stable oscillator and a reference output. You might need to use a distribution amplifier, depending on the cable lengths, but for just two inputs a power splitter should be OK.

lukier:

--- Quote from: carl_lab on November 17, 2016, 03:22:59 pm ---We cannot install separate GPS antennas for each production ATE using a 53220A.

--- End quote ---

Sounds extravagant, I think typically you would have one GPSDO for the facility and then a distribution amplifier to spread the 10 MHz around to the counters.

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