This configuration allows user to use the GPS receiver as a compass. This option uses GPS 1 and GPS 2 data to work out the DR vector which is displayed on screen.
It is possible to modify the W (Weight) value. If it is set to 0, the autopilot will not use the GPS Compass information. Otherwise, the autopilot will use the Magnetometer and GPS Compass information, taking account the weight selected by the user.