[time-nuts] Power glitch, Menlo Park CA, 4 seconds

Hal Murray hmurray at megapathdsl.net
Tue Aug 7 22:09:10 UTC 2012

I'm finally starting to capture audio data so I can see what happens when a 
cycle gets lost or added.

We lost power for a few seconds yesterday.  Here are a few graphs:

(The vertical scale is 16 bit audio rather than volts.)

I'm seeing glitches like this:

The PPS side just keeps ticking along cleanly.  I'm guessing ground problems, 
in part because I'm using the mic input because I can't get the audio mux to 
switch to line-in.

Any Linux audio wizards here?  If so, please contact me off-list.

These are my opinions.  I hate spam.

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