[ntp:questions] PPS signal from Garmin GPS 18x LVC

Adrian P mailing-lists at pascalau.ro
Sat Dec 28 20:40:48 UTC 2013


How do I know that my NTP server is actually using the PPS signal from
my Garmin GPS 18x LVC?

I have the following NMEA driver configured in /etc/ntp.conf:

server mode 1 minpoll 4 maxpoll 4 prefer
fudge flag1 1 flag2 0 flag3 1 refid PPS

The below output shows me that NTP is using the NMEA GPS clock,
however I cannot find anywhere a command that tells me that PPS signal
is used as well...

root at debian:~# ntpq -c clockvar
associd=0 status=00f1 , 15 events, clk_no_reply,
device="NMEA GPS Clock",
poll=13, noreply=36, badformat=0, baddata=0, fudgetime1=0.000, stratum=0,
refid=PPS, flags=5
root at debian:~#

Many thanks,

More information about the questions mailing list