PPS and selection algorithm issues

Jim Pennino jimp at gonzo.specsol.net
Mon Sep 23 16:08:47 UTC 2024


On Mon, Sep 23, 2024 at 10:44:52AM -0500, Eric Towers wrote:
> Is prefer NMEA required or is a high quality source of interval labels
> required?  (PPS is a great metronome, but the intervals have no labels
> -- gotta get the correct labels from somewhere.)
> --
>     -- Eric Towers ! fuzzyeric at gmail.com

The bottom line is ntpsec does not process pps data unless prefer is
specified on the nmea configuration line.

What do you mean by "high quality source of interval labels"?

The only case I can think of where the NMEA data would be an issue is if
the antenna was highly obstructed and the receiver was only processing a
small number of satellites.




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