26 ST4000 PlusWheel & Tiller AutopilotsOwner’sHandbook3.3 Adjusting autopilot performanceThe response level and rudder gain can be adjusted during normaloperation using a combined key-press. Alternatively, you can set upthese two control displays as default Data Pages (see section 2.5).The default calibration settings for response level and rudder gain, asspecified in Dealer Setup, are restored whenever the system is poweredon.Changing the response level (AutoSeastate)The response level controls the relationship between the autopilotíscourse keeping accuracy and the amount of helm/drive activity.ï Response Level 1, AutoSeastate (Automatic Deadband), causes theautopilot to gradually ignore repetitive movements of the vessel andonly react to true variations in course. This provides the bestcompromise between power consumption and course keepingaccuracy, and is the default calibration setting.ï Response Level 2 (Minimum Deadband) provides the tightestcourse keeping possible. However, tighter course keeping results inincreased power consumption and drive unit activity.The response can be changed at any time. To do so:1. Press the +1 and -1 keys together momentarily to display theResponse screen.2. Press +1 or -1 to change the response level.3. Wait for 5 seconds, or press disp, to return to the previous display.
