: Hardware to secure the link to the vessel's tiller arm.
Manually center the vessel's rudder. Secure the wheel or tiller so it cannot move during installation. Step 2: Mark the RF300 Center Point
The RF300 is designed to be maintenance-free. The installation manual stresses that the transmitter arm should from the feedback unit, as it is factory-calibrated and sealed. Because of its frequency-based design, there are no internal pots to wear out. The only regular check needed is to ensure the linkage rod and ball joints remain lubricated and free of corrosion.
Once mechanically mounted and wired, you must calibrate the RF300 through the autopilot control head (e.g., AP11 or AP20). This step teaches the autopilot software the exact physical limits of your steering gear. Step 1: Access Installation Mode Turn on the autopilot system. simrad rf300 installation manual
Standard wiring often involves connecting the brown wire to terminal 11 and the white wire to terminal 12 on compatible Simrad junction boxes.
Simrad RF300 Installation Manual: A Comprehensive Guide to Rudder Feedback Setup
Fasten the RF300 to the surface using marine-grade stainless steel fasteners. Do not overtighten, as this can crack the plastic housing. Step 5: Install the Linkage Rod : Hardware to secure the link to the vessel's tiller arm
: Includes a threaded rod, ball joints, and locking nuts.
The RF300 connects directly to the autopilot computer or junction box (e.g., J300X, J3000X, AC10, AC20, AC42). Turn off all DC power breakers before opening the junction box. Pinout Connections
The RF300 is commonly paired with Simrad autopilot computers, such as the AC12, AC42, and AP series. It utilizes a high-precision potentiometer to convert mechanical angular motion into an analog electrical signal. This paper details the installation process to ensure the sensor's longevity and signal accuracy. Step 2: Mark the RF300 Center Point The
Gather these tools before starting the physical installation: Hand drill and drill bits (matched to mounting screw size) Flathead and Phillips screwdrivers
(appropriate for your bulkhead or mounting surface) Screws or bolts (marine-grade stainless steel) Wrenches and screwdrivers (slotted and Phillips) Wire strippers and electrical tape Marine-grade sealant (for waterproof mounting) Loctite or thread-locking compound 📐 Pre-Installation Planning
It operates at 12V DC and outputs a frequency signal where 3400 Hz represents the center position. Each +/- 20 Hz shift indicates one degree of rudder change. Configuration
This paper provides a comprehensive technical guide for the installation, configuration, and maintenance of the Simrad RF300 Rudder Feedback Unit. As a critical component in modern autopilot systems, the RF300 provides essential data regarding rudder position, enabling accurate course-keeping and maneuverability. This document outlines the necessary tools, mounting procedures, electrical interfacing, and calibration steps required to ensure optimal performance. Special attention is given to mechanical alignment and compatibility with Simrad autopilot computers.
12V DC to 16V DC (supplied directly by the autopilot computer) Included Cable Length 10 meters (2-wire marine grade) Physical Dimensions Compatible Autopilots