Sperry Marine 4914-CA, Operation, Installation And Service Manual

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As a standalone system, the NAVIGAT X MK 1 provides North-speed
error corrected true heading as well as rate of turn data.
If a magnetic compass with fluxgate sensor, type 4863, or an electronic
compass is installed, the NAVIGAT X MK 1 applies magnetic variation
and distributes magnetic compass heading data to external equipment
(Transmitting Magnet Compass, TMC function).
The heading difference alarm function permits to monitor the difference
between the gyrocompass and magnetic compass heading sources.
In case of failure of the gyrocompass, the magnetic compass heading
source may be activated to provide an emergency heading reference for
repeaters and other peripheral equipment.
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Magnetic
Compass
Position Receiver
Speed Log
Rudder Angle
Feedback Unit(s)
Status Signals In
Ext. Gyrocompass
ROT
Serial Repeaters
Equipment using
serial input
Equipment using
6 step/ input
Analogue
R.o.T.
Indicators
Nav. Data
Printer
Status Signals Out