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Discussion of precise time and frequency measurement

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Histogram of T2 arrival times

HM
Hal Murray
Thu, Jul 28, 2016 8:55 PM

http://users.megapathdsl.net/~hmurray/time-nuts/T2-hist.png

24K samples from KS-24361
200K samples from Z3801A

The systems collecting the data have 200-300 microsec peak-peak of clock
offset, mostly tracking daily temperature swings.

A major fraction of the timing difference is explained by the baud rate
difference.  If I did the math right, there is a 12 ms difference in
transmissions times.

--
These are my opinions.  I hate spam.

http://users.megapathdsl.net/~hmurray/time-nuts/T2-hist.png 24K samples from KS-24361 200K samples from Z3801A The systems collecting the data have 200-300 microsec peak-peak of clock offset, mostly tracking daily temperature swings. A major fraction of the timing difference is explained by the baud rate difference. If I did the math right, there is a 12 ms difference in transmissions times. -- These are my opinions. I hate spam.
GE
Gary E. Miller
Thu, Jul 28, 2016 10:17 PM

Yo Hal!

On Thu, 28 Jul 2016 13:55:32 -0700
Hal Murray hmurray@megapathdsl.net wrote:

Cool!

The systems collecting the data have 200-300 microsec peak-peak of
clock offset, mostly tracking daily temperature swings.

How do you know that?

RGDS
GARY

Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
gem@rellim.com  Tel:+1 541 382 8588

Yo Hal! On Thu, 28 Jul 2016 13:55:32 -0700 Hal Murray <hmurray@megapathdsl.net> wrote: > http://users.megapathdsl.net/~hmurray/time-nuts/T2-hist.png Cool! > The systems collecting the data have 200-300 microsec peak-peak of > clock offset, mostly tracking daily temperature swings. How do you know that? RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 gem@rellim.com Tel:+1 541 382 8588