Hi Assuming the device has the “normal stuff” in it, it will look at the location in memory and compare that to the current solution. If the solution is off by more than the limit, it will reject it. If it rejects enough data ( = no good solution) it goes into holdover. Some devices will operate down to a single satellite against a memorized position. That is not true of all gizmos. Even with the “single sat” devices, there is a multi sat / bad location solution situation that will send you into holdover.
Bottom line is that it usually is antenna location. Clear view of the sky and an appropriate elevation mask are what you are after. Bob > On May 13, 2018, at 10:27 AM, gandalfg8--- via time-nuts <[email protected]> > wrote: > > Ok, I give up.... > > I've been logging this with Lady H and was watching again this afternoon as > the sat count dropped but this time there was no dropping into holdover as > the number of sats dropped from four to three....damn, it just carried on > doing its thing until the count went up again:-) > > I'm still seeing the occasional reported random holdover event but am still > no nearer to knowing why. > > Otherwise it's a nice unit and does handle the holdover well, even a longer > event yesterday whilst there was a supposed antenna fault didn't reflect into > the frequency plots, but time to call a halt for now. > > Nigel, GM8PZR > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
