[ntp:questions] Geographical diversity of Stratum 1 servers
Greg Dowd
gdowd at symmetricom.com
Thu Feb 14 13:38:12 UTC 2008
Jason Rabel wrote:
>> The GPS computation of location, elevation, and time involves a system
>> of four simultaneous equations which can be solved for time, lattitude,
>> longitude, and elevation. Doing an extended "site survey" can refine
>> your location and elevation. The better location data, the better the
>> solution for time.
>
> The Tymserve (assuming model 2100 since that was the last and most popular)
> does a site-survey on power-up. Unfortunately you can't manually input your
> location (if you know it is more accurate) but the TS2100 does a pretty good
> job. It also disciplines an oscillator from the 1PPS so that it can flywheel
> in holdover mode.
>
> Jason
You can enter the position manually. And program the receiver mode. I
added a lot of access to the embedded trimble receiver. It's been a
while so I don't remember the details but look in the command shell
/timing/gps/util.
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