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SKU: 22506950

This rudder feedback unit transmits separate variable-frequency and voltage signals proportional to the rudder angle, for use by Simrad autopilot systems and rudder angle indicators. It is mounted close to the rudder stock and is mechanically connected to the rudder by a transmission link in a 1:1 ratio.

Product details

The RF14XU Rudder Feedback Unit consists of a glass-reinforced non-flammable polyester housing with a mounting plate of sea-water resistant aluminium. It contains a potentiometer, limit switches and an electronic drive module. The electronic drive module contains a voltage section and a frequency section. The voltage section outputs a voltage to the rudder angle indicator(s) which is proportional to the rudder angle. The voltage varies ±9 volts around half the supply voltage. The frequency section generates a variable frequency signal with 3400 Hz as midposition reference. This section is only used if a Simrad autopilot is connected to RF14XU. The signal varies at a rate of 20 Hz/degree increasing when the rudder moves to port and vice versa. The shaft of the Feedback Unit is free to travel 360 degrees but only ±90 degrees from midposition are used for signal control. RF14XU is equipped with two sets of micro switches which can be used as electrical limit switches for the steering gear.

Key Features

  • Heavy Duty Long life feedback unit with transmission linkage
  • Variable frequency output for Simrad autopilots
  • Separate voltage output for rudder angle indicators
  • Double set of limit switches
  • Requires 24VDC supply voltage


Compass Safe
1 m (39,37")
Supply Voltage
Operating Temperature Range
-15 to +55C (5 to 131F)
Warranty Period
2 years
2,8kg (4,9 lbs)
Dimensions W x H x D
240 x 185 x 120 mm (9,4 x 7,3 x 4,7")
Storage Temperature Range
-30C to +70C (-22F to +158F)
Mounting Type
Horizontal, Vertical, Upside-down