[time-nuts] Thought experiment on a low cost timing board

Tom Van Baak tvb at leapsecond.com
Thu Feb 23 18:12:07 EST 2006

> So does the basic idea make sense?  More importantly can somebody opine
> on if it's possible to use a 1PPS to discipline an OCXO (I've seen
> designs to it from a 10KHz signal for sale on eBay)) -

Yes, many devices, both professional and amateur,
use a precise 1PPS signal to discipline Qz, Rb, and
Cs frequency standards. Almost every GPSDO on
the market is based on a 1PPS discipline algorithm.
See also:

PRS10 Rubidium Frequency Standard

The Science of Timekeeping Application Note 1289

GPS and Precision Timing. Application Note 1272

I'm curious about the 10 kHz signal. Can you send
me a pointer to it? Usually 1 Hz is good enough and
in practice most GPSDO use an averaging algorithm
that is more akin to 0.01 Hz to 0.001 Hz.


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