Went out early this am in perfectly calm wind to test my GPS. Calm air is rare around here. GPS held a hover rock steady. Held position on climb and descent. Flew straight and then held on fore and aft flight and side to side.
But (ain't there always a but), on even a small gentle yaw, would drift off severely before correcting. Slow quarter turn to the left and it would drift 8 or ten feet to the left before slowing and returning to position. Same to the other direction. When it did correct, seemed to hunt for position a bit before returning to new original hover.
GPS lock is very solid. After I power on, by the time I step back and pick up tx, it has achieved 7 satellite lock.
Tried changing gain for yaw to no effect. May try recalibrating compass later
Anybody run into this yet?