The RF300 uses a two-wire connection to transmit a digital signal to the autopilot computer. Simrad Commercial

Which (e.g., NAC-2, NAC-3, AC12, or AC42) you are connecting the unit to.

Check for loose linkage pins or a slipping arm attachment screw.

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: After calibration, confirm that the rudder angle indicator on your display accurately reflects the physical movement of the rudder. 4. Troubleshooting Tips Unstable Readings

Check that the linkage moves smoothly without binding, hitting the hull, or reaching the mechanical limits of the RF300 before the rudder hits its physical stops. 🔌 Electrical Wiring

Correct mechanical placement is vital to prevent rudder feedback alarms.

12V DC to 16V DC (supplied directly by the autopilot computer) Included Cable Length 10 meters (2-wire marine grade) Physical Dimensions Compatible Autopilots

Regularly inspect the sensor cable for corrosion and verify that the rudder indicator on the display accurately matches the physical rudder position. B&G RF300 Rudder Feedback Unit | Autopilot - Simrad