Heading Sensors; Rfc35 Electronic Fluxgate Compass; Rfc35R Rate Compass; Cdi35 Course Detector Interface And Cd100A Course Detector - Simrad AP20 Manual

1.8

Heading Sensors

The AP21 and AP22 autopilots can be used with the following
combinations of heading sensors:

RFC35 Electronic Fluxgate Compass

A compact heading sensor from Simrad with 15 m (45 feet) of
cable. The direction of the earth's magnetic field is sensed by a
floating ring core in a fluxgate coil and transformed to a digital
signal read by the autopilot steering computer.

RFC35R Rate compass

Fluxgate compass with integrated rate sensor. Provides a dramatic
improvement to the dynamic performance of both the autopilot
and a stabilized radar display when connected to the autopilot
system.
Same dimensions as RFC35.
CDI35 Course Detector Interface and
CD100A Course Detector
Interface and sensor unit to connect AP21 and AP22 to a
magnetic compass. The autopilot provides excitation current for
CD100A and converts the analogue sin/cos signal to digital two
wire format for the autopilot steering computer.
Note ! You can not connect both an RFC35 and a CDI35 at the same
time.

NMEA compass

(Applies for AP21&AP22 V1R3/J300X V1R8)
Any NMEA 0183 compass with HDT, HDG or HDM messages
can be connected directly to the J300X/J300-40X junction units.

Other fluxgate compass models

The optional CI300X can interface AP21 and AP22 to fluxgate
compasses with heading signal on a sine/cosine format.

Simrad RGC10 and RGC50 gyrocompasses

The optional CI300X unit is needed to interface these two
gyrocompass models. Other gyrocompass models with synchro
1:1 (max 110V) can also be interfaced.
20220596G
Introduction
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