Simrad AP28 Operator's Manual page 35

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.
CCA set to 15 degrees.
Approaching reference
depth from port
CCA set to 15 degrees.
Approaching reference
depth from starboard
Turn parameter
Main course
Depth gain
Contour Cross Angle
Reference depth
The reference depth is captured when the DCT
activated. To change the reference simply use the Up or
Down key.
Change
Range
per step
0° - 359°
5 - 95
0 - 50
Reference
depth
Default
1 –
5 5
1 0
TM
is
Operation | 35