[time-nuts] Segal law: freq difference for GPSDO

Hal Murray hmurray at megapathdsl.net
Tue Mar 29 17:35:48 EDT 2016


> I have no third GPSDO (or equivalent) to compare.

There is the crystal in your 5386A.  Can you use that to measure the time 
between PPS pulses? (Some counters/timers don't go over a second and if the 
crystal is fast, the PPS will look slightly longer than a second.)

If both GPSDOs agree, you can calculate the actual frequency of the 5386A.

Then you can measure the 10 MHz signals and compute the actual frequency.


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