Aloha Gary
this concerns
Versions:
ZED-F9P - HPG 1.51
gpsd - gpsd: 3.26.2~dev (revision release-3.26.1-73-g9131e817d)
UBXOPTS - "-P 27.31 -v2"
CRS-PPP SPARK - 5.13.0
cold booting the F9P and doing a one hour raw ubx snapshot with
gpspipe/gpsdecode/gpsrinex went through CSRS-PPP with no problem
with encouraging Sigmas for the estimated position
Sure sounds like something is flakey.
I can now confirm that the board is resetting itself after about seven
days when configured for RAW mode (see command sequence below)
ubxtool -p COLDBOOT
ubxtool -d NMEA
ubxtool -e BINARY
ubxtool -p CFG-GNSS
ubxtool -d BEIDOU
ubxtool -d GALILEO
ubxtool -e GLONASS
ubxtool -d SBAS
ubxtool -e GPS
ubxtool -p CFG-GNSS
ubxtool -p CFG-RATE,5000,1
ubxtool -e RAWX
ubxtool | fgrep RAWX
gpspipe -x 28800 -R > YYYYMMDD-8h-raw.ubx
gpsdecode < YYYYMMDD-8h-raw.ubx > YYYYMMDD-8h-raw.json
gpsrinex -F YYYYMMDD-8h-raw.json -i 30 -n 480
The nasty thing is that after the self induced reset of the F9P the PPP
recordings are faulty and will be rejected be CRS-PPP.
You have for sure seen more unstable GPS receivers, what would be the
recommendation:
Do a coldboot every 24h?
Mahalo, Werner
