Im researching GPS status and would like to graph it after missions. In Telemetry Logs - Graph Log I cant find hdop among graphable parameters.
Also no hdop if i convert to CSV file.
However, under the map view if I go Tuning --> Double Click on graph legend --> I find gpshdop in the available parameters.
Any way to check hdop from log files?
IS this for a tlog or a log?
uint16_t eph; ///< GPS HDOP horizontal dilution of position
Yeah there it is! Thanks!
To answer my own question if someone else needs this info...
Other logs are for example the onboard logs which are enabled via CLI (logs --> Enable XXX)
More about these at http://code.google.com/p/arducopter/wiki/AC2_Datalogging
Hi, this is some offtopic, do you know what HDOP value is acceptable for fly?, I can't find this info, thanks
I am not completely sure so someone correct me if Im wrong:
HDOP alone if not enough to decide if you have a good signal. You also need to take into account Sat Count.
Best I've seen is 11 sats with a HDOP of 78. I fly in Finland so I'm quite high up on this planet we call home. Smarter people have told me that GPS does not work as well here as somewhere closer to the equator.
Ok, thaks. I think that this is a very important safely parametrer that may be in wiki First-time flying checklist.
I agree.GPS (and Sonar) interference would also be valuable in the assembly wiki. My first GPS placement was close to my telemerty Xbee which resulted in some GPS jumps. Moved GPS further and solved it.