| 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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