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Russell H.
Russell H., Service Tech
Category: Marine Electronics
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Experience:  8+ years of professional experience
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I have st400 autopilot on 2003 catalina 36 calibrate auto

Customer Question

I have st400 autopilot on 2003 catalina 36 mike
calibrate auto pilot reading 7% is that a good number
also then try to calibrate degrees on auto pilot with compass , but
readings vary with point of compass.
any suggestions
Submitted: 4 months ago.
Category: Marine Electronics
Expert:  Russell H. replied 4 months ago.

Hi, thank you for contacting My name is***** will do my best to provide the right answer to your question.

The ST400 is new, then, if I understand correctly.

You've made a compass swing, and find some difficulty in calibrating degrees with compass readings... do you have your autocompass hooked up in the system also? check its connection, and its function, if possible.

On some boats, of course, a magnetic compass has different degrees of deviations (from true north) at different points of the compass, owing to large metal masses being aboard (e.g. the boat's engine, etc.) Could that be the problem, simply? What degree of variation are you seeing?

Customer: replied 4 months ago.
No helpful at all.
No details
You state the obvious and don't seem to know the system
Please do not responded further

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