Garmin 906-2500-01 GPS Receiver User Manual


 
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Sea Trial Setup: Steps 10-15 will need to be performed on open water, free of obstacles.
10. Calibrate your compass. The autopilot compass is made with a  uxgate. Like all compass
installations,  uxgate installations are susceptible to local magnetic disturbances that will cause
erroneous heading outputs. The autopilot computer can detect and correct deviations caused by
magnets and iron materials around the  uxgate- if the earths’ magnetic  eld near the compass isn’t
too distorted. Even though the compass corrects iron induced errors, don’t expect the correction
to solve all ills associated with iron near the compass, placement of the compass in an iron free
area is critical. You should only calibrate the compass on calm water. Stay away from large steel
structures. Calibration will not work right if you try to do calibration with your boat on the trailer
because the trailer is made with iron. Find some smooth water where you can drive in circles
without running into anything.
1. Turn System On. Autopilot will be in Standby [STBY Mode]
2. Press, release and light up the [Setup] LED on the Handheld, and enter code 47 on
the handheld.
B. Press and release [Left
Chevron] button once to
illuminate the #4 LED.
C. Press and release [Right
Chevron] button once to
illuminate the #7 LED.
A. Press and release
[Setup] button once to
illuminate [SETUP] LED.
3. To start Compass calibration.
B. Press and HOLD the
[Select Load] GPS button.
A. Start driving the
boat in a straight line.
G. While holding down the
[Select Load] button. Press
and Release the [Deckmount]
button once quickly.
A. Press and Release
Deckmount Switch to turn
autopilot on. Deckmount will
begin to  ash.
B. [STBY] LED
will blink for 30
seconds.
C. When the Autopilot is done
loading the [STBY] LED will
light solid.
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