Operation Manual

Operation | 15
So if you loose too much speed e.g. when tacking, the
parameters will change to HI to gain sufficient rudder
response. This should be observed when setting the
transition speed on sailboats. See also Wind response
on page 16.
Response adjust
The Autotune function in the AP28 is so refined that the
majority of boats will need no further adjustments of the
steering parameters. On some boats, however, or at
particular sea conditions a fine tuning of the steering
parameters may improve the performance of the
autopilot.
The Response control allows you to make this fine tuning
for each of the two (HI/LO) parameter sets. The response
can be set to nine levels. Level 4 is default with
parameter values as set by the Autotune function. If no
Autotune is made (not recommended) the level 4 values
are the factory default values.
A low response level reduces the rudder activity and
provides a more “loose” steering.
A high response level increases the rudder activity and
provides a more “tight” steering.
A too high response level will make the boat start S-ing.
When you access the RESPONSE page the highlighted
Response parameter is the one that is active.