[ntp:questions] Reasons of NTP not to use GPS source

Igor Pavlov pavlov.ig at gmail.com
Mon Sep 16 07:00:09 UTC 2013


Hi!

I am using GPS-receiver based on Geos-1m chip (
http://www.geostar-navigation.com/en/navigation_05.html)

I connected it to serial port and configured NTP.
It becomes unused by NTP: when do ntpq -p reuest ti puts "x" near
"GPS_NMEA(1)" record.

What reasons can be for this?

Example of "ntpq -p" output

     remote           refid      st t when poll reach   delay   offset
 jitter
==============================================================================
xGPS_NMEA(1)     .GPS.            0 l   14   16  377    0.000  -303.07
4.292
*stratum1.net    .PPS.            1 u   62   64  377   62.800  -68.052
 43.693
+dl120g7.naviteh 194.190.168.1    2 u   58   64  377   30.151  -100.04
 52.432
+89.221.207.113  192.36.133.25    2 u    -   64  377   10.006  -105.88
 64.279


-- 
Igor Pavlov


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