How to do a compass calibration?

• If this is your first flight or you have moved a large distance (>100km) from the location of the last flight it is highly recommended that you recalibrate the compass. It is recommended to do the calibration without a payload installed.
  • Ensure the airframe is outside and several meters away from any sources of magnetic interference; these include cars, large metal structures, etc. Even keys in your pocket can cause problems if they get close enough.
  • Go to the “configuration” (gear icon) page
  • Tap “sensors”
  • Tap “compass”
  • DO NOT change “autopilot rotation” or “enable compass” options if they are presented
  • Tap “ok”
  • Pick up the airframe and rotate it around. There is no specific order required, but here is a rough guideline
    • Do two full rotations with the aircraft in its normal upright position
    • Two more rotations with the nose down, can be repeated with other sides pointing down
    • Two rotations as if the arms are spokes on a wheel, can be repeated with the “axle” of the wheel pointing in different directions
  • While calibrating a green progress bar is shown in dgroundcontrol and the aircraft will periodically beep. You can have an assistant watch the progress bar or listen for the beeps to stop.
  • Once completed the quality of the calibration will be shown. At least one compass should be “green”.
  • Tap ok and wait for the settings to save (green progress goes away)
  • Power off the aircraft by pressing the power button until the navigation lights go out (up to 5 seconds depending on payload)
  • Power aircraft back on and wait for reconnection