Hi I have finally manged to get RTK Fixed solution into my drone using a Piksi Multi board. I am running dual GPS with a Here GPS as my GPS1 and heading and the Piksi as GPS 2. They are set to switch automatically based on quality of position.
I am now have three further issues:
1, I cannot arm the drone due to pre arm failure “AHRS differs from GPS” this is saying by approx 40 metres. Have worked around this by switching Alt source to GPS from Baro but would like to understand why this is.
2, I cannot arm the drone due to pre arm failure "GPS positions vary by a ~50 metres. I think this is mainly in altitude. Only work around for this is to switch off GPS 1 which isn’t ideal when I am also have the below issue and would rather have both GPS running all the time.
3, The Piksi does give GPS status 3 but quite often is displaying GPS status 1 (No GPS fix) and only when I activate GPS Inject to give it corrections does it jump to 5 and then 6. The lights on the Piksi itself say it has a fixed position the whole time.
Any advice would be very welcome.