[time-nuts] Allan Deviation recipe?
Bob Stewart
bob at evoria.net
Tue Jul 19 19:04:16 UTC 2016
I don't know what your data looks like of course, but to me it looks like you have a scaling problem. At the very least, I would think you should be in the xE-9 at tau = 1 second. Are you feeding it whole numbers of nanoseconds, but it's interpreting them as milliseconds or something like that?
Bob
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From: Gary E. Miller <gem at rellim.com>
To: Tom Van Baak <tvb at LeapSecond.com>
Cc: Discussion of precise time and frequency measurement <time-nuts at febo.com>
Sent: Tuesday, July 19, 2016 1:42 PM
Subject: Re: [time-nuts] Allan Deviation recipe?
Yo All!
With help from Tom Van Baak and Bob Stewart, I have 6 weeks worth of
GPS Serial and PPS timing data in a nice ADEV chart. I think.
Check it out:
https://rellim.com/graphs/adev.png
That is for a SiRF III (MR-350P) with a bad sky view.
How does that look? Totally wrong? Somewhat wrong?
Once I get this packaged up I'll have lots more similar graphs.
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
gem at rellim.com Tel:+1 541 382 8588
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