[time-nuts] 10 MHz Phase Coherent

Tom Van Baak tvb at LeapSecond.com
Fri May 25 09:32:25 EDT 2007


> What I am always being asked for is to have the 10 MHz
> sinewave of a GPSDO in phase with the 1 pps pulse (which
> is UTC aligned).
> 
> Does anyone know if any companies make units where the
> 10 MHz is in phase with the 1 pps UTC signal?  

Martyn,

I thought almost all GPSDO derive their 1PPS output from
the OCXO and thus phase coherence between the 10 MHz
output and the 1PPS output is guaranteed by design, no?

If your GPSDO doesn't do this, how are you locking your
OCXO to the GPS receiver 1PPS?

/tvb




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