Re: [gpsd-dev] Draft Stratum 1 Microserver HOWTO is up

[Gary E. Miller]

Yo Clark!

On Fri, 20 May 2016 10:43:51 -0400
"Clark B. Wierda" <address@hidden> 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
        address@hidden  Tel:+1 541 382 8588

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