Rf300 Installation Manual — Simrad

: Do not attempt to remove the factory-adjusted transmitter arm from the feedback unit.

Simrad kept it simple here. The RF300 typically uses a two-wire frequency interface. Green/White:

The RF300 comes with a generous 10m (33ft) cable, providing flexibility to connect it to the autopilot computer located elsewhere on the boat. It is crucial to route the cable away from high-current wiring, such as engine alternator cables, battery leads, and other power cables, to prevent electrical interference.

Note: This guide provides a general overview. Always consult the official instruction manual specific to your Simrad autopilot system for detailed safety information and model-specific instructions. simrad rf300 installation manual

Check continuity along the cable run and tighten terminal screws. Linkage slipped or calibration skipped.

: 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.

Turn off all DC power to your marine electronics at the breaker panel. : Do not attempt to remove the factory-adjusted

The RF300 outputs a frequency-modulated signal (typically 3400 Hz at center) rather than a variable voltage. It connects directly to the dedicated rudder feedback terminals on your Simrad autopilot computer (such as the AC12, AC42, NAC-2, or NAC-3). Wiring Configuration

Once mechanical and electrical installations are complete, you must calibrate the rudder feedback unit through your Simrad autopilot control head (e.g., AP11, AP16, AP24, or AP44). 1. Zero Alignment (Center Calibration)

Check: Inspect the mechanical ball joints for slack, play, or looseness. Even 1mm of physical play can cause the pilot to over-correct continuously. Green/White: The RF300 comes with a generous 10m

After mechanical and electrical installation, the directs you to calibrate the unit using your autopilot’s display (e.g., an AP44, AP48, or NSO evo3). However, the manual’s written steps can be cryptic. Here’s a practical breakdown:

A: The RF300 comes with a pre-attached 10m (33ft) cable, providing plenty of length for routing from the rudder area to the autopilot computer.

Before beginning the installation, verify that you have all the necessary components and tools. Package Contents

isn't always a "plug-and-play" affair, especially on older vessels. Here are some of the most interesting takeaways from community discussions and expert guides: