[ntp:questions] GPS-PPS, standalone server. NTP
david-taylor at blueyonder.co.uk.invalid
Tue Jun 6 06:29:06 UTC 2017
On 05/06/2017 22:53, Jakob Bohm wrote:
> Note that any failure in the GPS/GNSS radio hardware that actually
> provides both the PPS pulses and the NMEA messages would be a failure of
> both "ntpd sources".
> Thus such a failure of NMEA+PPS would be more common than a failure of
> NMEA or PPS alone.
.. and one failure experienced here was the presence nearby (RF-wise) of
a GPS jammer. All GPS receivers lost lock, PPS and NMEA. Interesting
to note which continued to provide an /unlocked/ PPS signal!
The PCs continued to sync with the Internet alone.
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