hi all
I am using AP 3.7.1 with GPS ublox 7m
But after I turn the plane on in the ground and during the preflight check I see the GPS grow up from 0 to some times 40
sat = 11
hdop = 0.9
So every time I need to reboot the plane , when I fly with the alt value 20 in the ground ,
It confuse me when landing coz I get wrong alt value ?
what is the problem ? and How to fix it ?
Regards.