UP, and select
Allows you to manually calibrate the compass sensor (Calibrating the Compass Manually).
Sets the directional heading on the compass to letters, degrees, or milli-radians.
- North Ref.
Sets the north reference of the compass (Setting the North Reference).
Sets the compass to use electronic-sensor data only (On), a combination of GPS and electronic-sensor data when moving (Auto), or GPS data only (Off).