GPSDO Testing and Excel Log

• GPSDO Testing and Excel Log
  Posted by Zenwizard on 09 May, 2024 13:32
• I have been asked to if I was willing to do some stability testing on some of the cheaper GPSDO units that can be had from the auction site in the sky. I have started an excel sheet that is attached for some stability testing.
  
  Test equipment used
  Keysite 53230A - Frequency counter no options
  Stanford research FS725 - Rubidium clock for the 53230A
  GPSDO supplying 1PPS to the FS725
  
  frequency counter had a 24 hour warm up along with the GPSDO's under test
  10 Mhz reference had a grater then 3 month warmup time as it runs 24/7 in the lab. (Both the FS725 and the GPSDO)
  
  A link to the 10 Mhz reference playlist on YouTube is here -
  
  Excel file is attached.

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  10 Mhz Refrence Testing ADEV and Pk-Pk.xlsx
• #1 Reply
  Posted by erialor on 16 May, 2024 14:33
• Thanks alot - I don't really have equipment for testing my equipment... (I have a version of their GPSDO with LCD - according to the LCD readout the 10MHz seems to be at max +/- 0.4 mHz - normally +/- 0.1 mHz)
  
  Do you happen to have the BG7TBL FA-3 Frequency counter and/or tested it? (or their FA-5?) - or the BG7TBL FDIS-5 OCXO Frequency Standard and/or tested it?
  
  Thanks for sharing.