Manually move the helm from hard-over port to hard-over starboard. Verify that the linkage moves freely without binding, hitting obstructions, or exceeding the mechanical limits of the RF300 arm. Wiring and Electrical Connections
The effective radius of the RF300 arm should match the effective radius of the attachment point on the tiller arm.
: After physical installation, use your Simrad Multifunction Display (MFD) or autopilot controller to perform an "Auto Source Select" in the network settings so the system recognizes the feedback unit. simrad rf300 installation manual
on a stable platform so its center is aligned with the center of the rudder post. It can be mounted horizontally, vertically, or upside down. : Set the rudder to the center position. Rotate the
The RF300 feedback arm and the rudder tiller arm must be perfectly parallel. Manually move the helm from hard-over port to
Secure the RF300 to the mounting platform. If the rudder arm is higher or lower than the RF300, add blocking material to align them properly. 4. Wiring and Electrical Connections
If you suspect the unit is failing, disconnect the brown and white wires from the autopilot computer. Connect a digital multimeter set to measure Frequency (Hz) across the two wires while the unit is powered by the system: Should read approximately 3000 Hz. Full Port: Value should rise toward 3400 Hz. Full Starboard: Value should drop toward 2600 Hz. : After physical installation, use your Simrad Multifunction
This article is an educational supplement. Always refer to the official Simrad RF300 installation manual provided by Navico for your specific autopilot model and system configuration. Improper installation can lead to loss of steering control. If in doubt, consult a certified marine electronics installer.
Do not run the feedback cable parallel to high-current wiring, such as radar cables, VHF antenna coax, or thruster power lines.
: Check for loose mechanical connections or play in the ball joints. Ensure the locknuts are tight.
Mount the RF300 upside down if necessary, but keep the shaft vertical.
