When setting up APM on the ground, on Flight Data tab of the software, pitch is going up and down continously, if I switch to Stabilized mode, elevator replies to this situation, moves up and down.
This occurs ONLY when the uBlox GPS is connected.
If I remove GPS, it is steady (both the screen and elevator), only moves when I move the plane.
Is it normal?
how are you powering the apm?
with usb cable and lipo at the same time to power rc system and the motor.
sounds like you are having power issues. the ublox causing voltage sag on the apm
thank you for reply.
what should I do then if you know?