Operation Manual

Operation
20220505H 19
The AP20 will keep the boat on the set course until a new mode
is selected or a new course is set with either the course knob or
the PORT or STBD buttons. One revolution of the course knob
equals 44° course change.
Once the course is changed to a new set course, the boat will
automatically turn to the new heading and continue to steer the
new set course.
Regain manual
steering by
pressing:
Set course: 345 degrees
Compass heading: 340 degrees
Rudder angle: 2 degrees to stbd.
Speed input source: LOG
Speed parameter: HI
Course change
CW: Increase
CCW: Decrease
Course adjust
1°(or 10°)/push
Decrease
Increase
02
LOG -HI
340
RFC
RUDDER
HEADING
P
S
o
STBY
PWR
Note ! The 10° course adjust by port or stbd button is available from
software version V1R2 onwards (see page 33).
2.9 Automatic Speed selection
The AP20 provides two different sets of steering parameters for
controlling the response of the boat at different speeds (HI or
LO) while in AUTO and NAV modes.
The AP20 always selects the HI speed steering parameters when
first switched on. This is a safety feature. After initial turn on,
selection of the steering parameters may be accomplished
automatically, based on the availability of input data from either
an external speed log or an external navigator, or manually.
The AP20 automatically selects the HI or LO parameter set. The
speed at which the AP20 changes from HI to LO (or opposite) is
determined by the "Transition Speed" set in the Installation
Setup Menu.
Note ! It is not recommended to use automatic speed switching if input
is from Loran.