[time-nuts] Comparing Reference Accuracy

Bruce Griffiths bruce.griffiths at xtra.co.nz
Thu May 22 18:09:32 EDT 2008

Stanley Reynolds wrote:
> The prams for sample size could also be set in the sampling PICs you would probably want to set them all the same.

A much better scheme is to time stamp the leading edges of the various 
PPS signals (from the GPS receiver and the divided down output of each 
GPSDO) using a common time base.
The time stamp resolution is improved by using a higher frequency clock 
and/or a time interval interpolator for each input channel.
This is the scheme used by NIST for remote frequency measurement.


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