Simrad RF40 Installation Manual
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Simrad RF40 Installation Manual

Rudder feedback unit
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RF40 Rudder Feedback unit
Installation guide
The RF40 is a resistive rudder feedback unit, suitable for autopilot systems with a
NAC-1 or NAC-2 autopilot computer.
¼ Note:
The RF40 can not be used with the NAC-3 autopilot computer.
The RF40 might also be used with autopilot computers that have analog rudder
feedback input.
¼ Note:
Do not remove the transmitter lever from the feedback unit.
¼ Note:
The unit is factory adjusted and requires no further adjustment at
installation than described below.

Mounting location

The RF40 unit (A) mounts close to the rudder, and is mechanically linked to the
rudder tiller arm (B) or rudder quadrant.
Select a mounting location for the RF40 unit according to the illustration
• X1
= X2: min 150 mm (5.9"), max 345 mm (13.6")
• Y1
= Y2: min 44 mm (1.7"), max 130 mm (5.1")
A
Y1
A
X1
X1 = X2
Y1 = Y2
X2
B
Y2
B
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Summary of Contents for Simrad RF40

  • Page 1: Mounting Location

    Mounting location The RF40 unit (A) mounts close to the rudder, and is mechanically linked to the rudder tiller arm (B) or rudder quadrant. Select a mounting location for the RF40 unit according to the illustration •...
  • Page 2 (E) on unit and on the lever should be aligned Rotate the RF40 unit so that the rudder lever is parallel with the rudder tiller arm Set the transmitter link to the inner limit of the outer slot if possible...

  • Page 3: Dimensional Drawings

    Wiring The RF40 is equipped with a 15 m (49 feet) cable with connector (A). The unit connects to the NAC-1/NAC-2 autopilot computer’s three pins rudder feedback socket (B). Function Color +5 V DC Signal Yellow -0 V DC Black...

  • Page 4: Technical Specifications

    Spare part 20193454 Transmitter link Technical specifications ¼ Note: The most up-to-date specifications list is available at www.simrad-yachting.com Physical Dimensions See figure Weight 0.5 kg (1.1 lbs.) Material Arnite T06 200 PBT Compass safe distance 1.0 m (3.1 ft.) Mounting Horizontal, vertical or upside down Cable 15 m (49 feet) with connector Transmitter link Stainless 345 mm (13.6”) with 2 ball joints...

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