Operation
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When the wanted depth is shown in the display,
activate the depth contour steering with PORT or
STBD button (any of the two).
If you do not press PORT or STBD within 1
minute, the autopilot will return to AUTO mode
and stay on course.
The display has the following menu items:
Reference depth
The reference depth is captured when the Depth pattern is
activated. To change the reference simply use the PORT or
STBD button or the course knob.
Depth gain
The autopilot is tracking the depth by computing an x-track error
when the boat is off the reference depth. This error adjusts the
set course to bring the boat back on track.
Use the gain control to have a firm or smooth response to the
variation in depth.
Range: (05-95)
Main course
This should be the main (average) direction of the depth contour
you want to follow. If the contour line is making a big change in
direction, you should manually adjust the set course to the new
direction. This will result in a quicker response from the
autopilot. If the course is not adjusted, the autopilot will need
more time to turn and steer the boat back to the reference depth.
Contour Cross Angle (CCA)
With this parameter you can make the boat lazy-s across your
reference depth. With the CCA set to zero there is no S-ing. The
CCA is an angle that is added to or subtracted from the set
course. Each time the boat crosses the reference depth the sign of
the CCA is changed and makes the boat turn to cross the
reference depth contour in the opposite direction. The larger the
CCA the bigger the turn.
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