Simrad Rf300 Installation Manual May 2026

The Simrad RF300 Rudder Feedback Unit is a medium-duty rotary sensor designed for inboard engines to provide precise rudder angle data via a two-wire frequency interface. Installation requires precise alignment on a stable platform close to the rudder, ensuring the transmitter lever is set correctly and the link matches the distance between the rudder post and attachment point. For more details, visit Simrad Yachting. INSTALLATION REV A Instruction Manual Page 72

Once physically installed, you must configure the unit through your Simrad multifunction display (MFD) or autopilot controller. Go to product viewer dialog for this item. Simrad RF300 Rudder Feedback simrad rf300 installation manual

1. Battery connections: Connect the power cable to a dedicated battery, ensuring a secure and watertight connection.
2. Fusing: Install a fuse or circuit breaker to protect the system from electrical overloads.
3. Wiring harness: Use the provided wiring harness to connect the display unit to other electronics, such as GPS or radar systems.

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. The Simrad RF300 Rudder Feedback Unit is a

• Frequency range: 156–163 MHz (Marine VHF)
• Nominal impedance: 50 Ω
• Gain: 3 dB (nominal)
• Max input power: 50 W (FM continuous)
• Connector type: Factory-terminated with PL-259 (UHF male)
• Cable length: 5 m (16.4 ft) of RG-58/U low-loss coax
• Mounting type: Standard 1"-14 thread (US) or optional metric adapter

Signal Type: It outputs a variable frequency signal centered at 3400 Hz, with a change of 20 Hz per degree of rudder movement. Battery connections : Connect the power cable to