My understanding is that altitude zones are MSL, not AGL. Lacking an altimeter and only having relative height above takeoff, how does the drone know you are approaching a ceiling?
I suppose it could be using the un-corrected barometric pressure, but the error range on this with weather pressure changes is huge.
Anyone know?
I suppose it could be using the un-corrected barometric pressure, but the error range on this with weather pressure changes is huge.
Anyone know?