Yo Clark! On Fri, 20 May 2016 10:43:51 -0400 "Clark B. Wierda" <cbwie...@gmail.com> wrote:
> I was reading the requirements for the NTP Pool Project and they have
> very soft precision targets (>100ms). I was thinking that just about
> any USB GPS puck should be able to deliver this. This would simplify
> the process for many users.
A plain USB GPS can easily wander over 100 milliSec in a day, then add
in the user can't figure out what the NMEA offset to UTC time is.
So it is possible, but requires very stable NMEA and at least a
one time calibration to a PPS. But also so easy to get wrong.
RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
g...@rellim.com Tel:+1 541 382 8588
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