[time-nuts] Jitter Test on Dividers
magnus at rubidium.dyndns.org
Mon Sep 21 17:52:46 UTC 2009
Poul-Henning Kamp wrote:
> In message <4AB6B76D.1010509 at rubidium.dyndns.org>, Magnus Danielson writes:
>> Seems less likely. I was pondering if the power line frequency was doing
>> some nice beat frequency with the system...
> 1250 seconds at 50Hz = 62500 periods.
> Assume one extra period over 1250 seconds: 62500 + 1 = 62501
> Relative frequency precision: 62501/62500 = 1.000016 = 16 PPM.
> In your dreams :-)
I didn't bother doing the math before I dismissed it. Seemed unlikely
for starters... the AC theory seemed more likely.
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