[time-nuts] GPS frequency uncertainty

Hal Murray hmurray at megapathdsl.net
Wed Jul 10 20:26:34 UTC 2019


> Would someone please expand on what the practical frequency calibration limit
> might be? 

That's not quite a well formed question yet.  You need to say something about 
the time scale.  What are you trying to calibrate?

Poke around for some ADEV curves.  Find one for your device (or similar) and 
another for a GPSDO.

Most devices will be V shaped.  The GPSDO curve will go down to the right.  
Where do they cross over?


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