In message <20110630093603.850ee800...@ip-64-139-1-69.sjc.megapath.net>, Hal Mu
rray writes:
>Here is the same data plotted as frequency measured over 10 seconds.
> http://www.megapathdsl.net/~hmurray/time-nuts/60Hz-a.png
The strong drops in the first approx 15 minutes of the hour indicates
vali
Tom's suggestion of using a modem control signal is a winner.
Here is a graph:
http://www.megapathdsl.net/~hmurray/time-nuts/60Hz.png
Hour 0 is the start of Jun 30 UTC, 5PM PDT.
It's gained almost 200 cycles over 9 hours. There are enough wobbles in
there that I think the data is good. It w
