Simrad AP25 Autopilot
76 20222139A
Note ! Offset correction is always performed after the calibration. If
you use COG as a reference for the offset remember it has to be
a magnetic reading.
The compass OFFSET feature allows you to correct for a fixed
heading offset. This offset may be present as a result of the
compass being installed with a lubber line offset or if a fixed
offset remains after the calibration procedure has been
completed. The value of compass offset is specific to the heading
sensor that is selected at the time the offset is entered. This
means that you can have individual offsets for each compass
installed.
Select the amount of
correction by turning the
course knob to offset the
heading to agree with the
known, accurate heading. The
Offset value can be either
positive or negative.
Note ! If an OFFSET still exists after having compensated for it, one of
the following problems may still exist:
• The heading reference to which you are comparing the
compass is not correct.
• The automatic calibration is not correct. Refer to above
“Compass deviation”.
Proceed to the next menu item by pressing the STBD button, or
return to Standby mode by pressing the STBY button.
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