On Tue, 4 Sep 2018, 18:35 John Sloan, <[email protected]> wrote: > Folks: > > > > Yesterday (2018-09-03) afternoon (about 22:00UTC, 16:00MDT) I noticed one > of my three home-made GPS-disciplined NTP servers had lost its GPS lock. > After some forensics on my part, this (2018-09-04) morning (about 16:00UTC, > 10:00MDT) I replaced the amplified antenna, and the device reacquired its > lock. I figured it was just an antenna failures; this is an amplified > filtered antenna so it has active electronics. > > Then just an hour or so later, I noticed one of my commercial > GPS-disciplined NTP servers (TimeMachines) had lost the GPS 1PPS timing > signal, but indicated it still had GPS lock. (I > > No clue what's going on in my suburb near Golden Colorado. But I’m a > little freaked out. Trying to figure out which rule, [1] It’s something > stupid I’ve done, or [2] I am not unique, to apply. > > :John
I know someone else who had a similar problem. It turned out to be a fault in one of the active antennas which went into self-oscillation, which jammed the other GPS receivers. Dave. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
