Determining the frequency offset

[Achim Gratz]

Achim Gratz via devel writes:
> I've run the script for 3 days on my spare PC (no PPS there,
> synchronized over LAN).  It measured the frequency offset each 15s and
> then double that interval all the way to 256×15s.

It runs just as well on a rasPi1
(y-axis scale is from -6.9 to -6.7 ppm):

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And here is how it looks on a self-ovenized rasPi3
(y-axis scale is from -4.59 to -4.57 ppm):

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Regards,
Achim.
-- 
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