Tuning
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The Tuning screen provides real-time insight into the autopilot’s performance and allows you to adjust steering parameters (Gains) directly.
In the chart, you will see:
🟧 Orange Area – Desired Heading Band This represents the acceptable deviation from the set course. As long as the boat's heading (red line) stays within this area, the course is considered acceptable.
🔴 Red Line – Actual Boat Heading This line shows the real-time heading of the vessel, as measured by the compass.
🔵 Blue Line – Autopilot Steering Correction This indicates how much (and how often) the autopilot is making adjustments to stay on course.
On the left side of the screen, you can adjust key steering settings such as:
The Aggr setting determines how aggressively the autopilot reacts. Use the – and + buttons to adjust the response level to your preference.
This option is only available when you create a new profile based on the Default profile. To do this, click the + button in the top-right corner to duplicate the Default profile. The new profile will be locked by default. Start by adjusting only the Aggr level to achieve optimal performance.
You can then unlock the profile to manually fine-tune individual parameters.
P
Base response to heading deviation
PR
Response to rudder position
I
Long-term correction (usually 0 for sailboats)
D
Damping to prevent overshooting
DD
Additional damping for faster course changes
This panel provides real-time feedback on steering performance:
Actual
Current heading
Target
Desired heading
Command
Current steering output
Unstable system
Instability indication (true/false)
Rise Time (s)
How quickly the course change starts
Overshoot (%)
Amount by which the course overshoots the target
Settling Time (s)
Time until the system stabilizes
Steady state error (°)
Constant heading deviation from the target
