anyone running GPS clocks in Southeastern Georgia?

Robert E. Seastrom rs at seastrom.com
Fri Jan 21 11:31:25 CST 2011


It is unclear from this NOTAM whether this is an intentional
perturbation of the satellite signals vs. a terrestrial transmitter
(my money is on the latter), but it illustrates why one might want
geographically dispersed time sources on one's network, as well as why
the current trend towards decommissioning LORAN (and in the future,
other navaids) in favor of reliance on a single source is a Bad Plan.

I'd be curious to see what effects (if any) those who use
GPS-disciplined NTP references in Southeastern Georgia see from this
experiment.

https://www.faasafety.gov/files/notices/2011/Jan/GPS_Flight_Advisory_CSFTL11-01_Rel.pdf

-r





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