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01/08/2020
For engaging this mode, when in
MANUAL mode press the buttons
AUTO and MODE at the same time.
Once in power steer mode, press ◄
for moving the vessel to port, or
► for moving to starboard.
GPS Mode – Waypoint Steering
Because there are a great variety
of GPS units that will work with this
autopilot, the following is a guide only.
For more information, consult your
GPS manual.
Setting up your GPS unit:
The GPS unit must be set up to
output NMEA 0183 and programmed
to navigate to a waypoint, or to follow
a line joining two or more waypoints
(called a route). The output data
generated must include at least one
of the following sentences:
(i) APA
(ii) APB
(iii) BOD and XTE
NOTE:
If only the XTE data sentence
is available, the pilot can steer in a
restricted manner only.
The AP56 will be able to steer from
each waypoint to the next without
intervention under the following
conditions:
(i) several waypoints are linked
together into a single route,
(ii) the GPS unit is set and capable
of “auto-sequence” between
them,
(iii) an “arrival zone” of more than
0.05 NM (Nautical Miles) is set so
that the GPS can detect when the
vessel has reached a waypoint,
If only the XTE information is
available from your GPS unit, then
your vessel must be on track, and
heading in the correct direction,
before engaging the GPS unit.
The “auto sequence” feature is not
available in this instance.
Remember:
Prior to engaging GPS mode, a route
or destination must be programmed
and selected in the GPS for the
Autopilot to follow.
Engage GPS Mode:
• Press AUTO Button
•
Then press the MODE and AUTO
buttons together
•
GPS and AUTO LED’s will light
• Beep will sound
• Display reads course to steer (BTW
as displayed by GPS)
• Boat will turn (if necessary) to take
up new course
