GPS Dongle Config


        
            
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            Install GPS Python Clients, and NTP for proper syncing
Install Software
sudo apt-get install gpsd gpsd-clients python-gps
sudo apt-get install ntp
Setup GPSD Defaults
sudo vi /etc/default/gpsd
START_DAEMON="true"
GPSD_OPTIONS="n"
DEVICES="/dev/ttyUSB0"
USBAUTO="false"
GPSD_SOCET="/var/run/gpsd.sock"
Test GPS
sudo service gpsd restart

cgps -s
Setup NTP to Sync from GPS Time
sudo vi /etc/ntp.conf
# gps ntp
server 127.127.28.0 minpoll 4
fudge  127.127.28.0 time1 0.183 refid NMEA
server 127.127.28.1 minpoll 4 prefer
fudge  127.127.28.1 refid PPS
GPS Serial data reference
server 127.127.28.0 minpoll 4 maxpoll 4

fudge 127.127.28.0 refid GPS

fudge 127.127.28.0 time1 +0.140  # coarse processing delay offset
GPS PPS reference
server 127.127.22.0 minpoll 4 maxpoll 4 prefer

fudge 127.127.22.0 refid PPS

fudge 127.127.22.0 flag3 1  # enable kernel PLL/FLL clock discipline

sudo service gpsd restart

sudo service ntp restart

ntpq -p