Simrad AP25 Manual page 59

Thruster sens
(only available if a thruster is connected).
If the thruster commands are hunting from side to side, the set
value for Thruster sens may be too low.
Range: 3° to 30° in 1° increments.
Default:
Seastate filter
The manual setting determines the number of degrees the vessel
may deviate from the set course before any command is given to
the rudder. The AUTO setting is recommended. The MANUAL
settings may be used to find the optimum combination of course
keeping and low rudder activity in rough but steady sea
conditions.
Reset trip
Same procedure as in STANDBY mode
User setup 2
20221495F
The Thruster sensitivity determines how many
degrees the vessel will deviate from the set course
before a thruster command is given. As the vessel
deviates from its heading, the thruster will push the
vessel back on. A higher value will reduce the
thruster activity.
5°.
OFF: Seastate filter is disabled.
AUTO: Automatically reduces rudder activity and
autopilot sensitivity in rough weather by
an adaptive process (default).
MANUAL: Manual yaw band adjust (1-10, 10 ≈ ±6°).
Refer to User setup 2 for STANDBY mode, page 52.
Operation
57