[ntp:questions] Stick to PPS, even if the prefer server fails

David Woolley david at ex.djwhome.demon.co.uk.invalid
Fri Mar 27 08:09:06 UTC 2009

Unruh wrote:

> I have now looked at the refclock_atom source and indeed, it demands that a
> prefer clocksource is available, and ignores the PPS if it is not. This I
> believe is a bug, or at least a design infelicity. You could either hack

I suspect the reasoning may be that both normally come from the same 
radio clock which will free-run the PPS when it loses a signal, so that 
detecting the failure of the NMEA data is the only way of telling that 
the PPS data is unreliable.

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