On 29/05/2012 05:19 PM, Stephen wrote:
> It looks
> like I will have to revert to the old fashioned method of adjust, let it
> run for a day and repeat until I get fed up.
> Could do better if it tried. :-(

You could try using the atomic emission spectrum of caesium-133 to 
adjust the frequency of the quartz oscillator...

For reference, the frequency of photon generated by the transition 
between the two hyper-fine ground states of a caesium-133 atom is 
*defined as* 9,192,631,770 Hz. As in, that's the current SI definition 
of what one second *is*.

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