Si-tex SP120C - Page 26

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SI-TEX Marine Electronics - SP120C Color Autopilot
Compass Calibration
Adjusting Compass O󰀨sets
AftertheE-compassiscalibrated,ndthe
bearing from the boat position to a known
visible object. Use a chart or a chart plotter.
Steer the boat so that the centre line of the
boat is aligned with the bearing line pointing
towards the object.
Changethecorrectiono󰀨setparameter
so that the bearing to the object and the
compass readout becomes equal.
NOTE: Make sure that both the compass heading and the bearing to the
object have the same unit (°M or °T).
NOTE: If a GPS system is connected, it is recommended to enable the ‘USE
GPS COG’ setting. If the E-compass fails the GPS ‘COG’ heading’ will be used
in this case, although will not be as accurate since the update rate will be
much lower and COG does not work well until the vessel is moving.