Raytheon 133-560 NG011, Operator'S And Service Manual

Page: 23 / 63

Repeater
Compass
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Edition: August 2014 2-7 3969.DOC010102
Repeater Compass
133-560
2.5 Indication of the Repeater Compass after setting into operation
If the Repeater Compass is connected via NMEA it indicates the heading source and
heading value. Please note that the Repeater Compass only indicates heading if it
receives a valid NMEA telegram, e.g. after the settling phase.
If the Repeater Compass is connected via Course Bus or CAN Bus the indication is as
follows:
During the heating stage of Standard 22 (approx. 0.5 h after setting the
compass into operation) there is no heading indication at the Repeater
Compass.
After the heating stage has ended the settling stage of the gyro compass starts. This
is indicated by a yellow LED.
During this settling stage the heading is indicated. Please note that the heading during
the settling phase is it is not true north. It must not be used for navigation purposes.
Only when the settling phase has ended (after approx. 4 h) the
heading indication has the assured accuracy.
(See also the manual for the gyro compass).
Indications Comments, notes
(red)
Heating stage (and alignment stage of the Satellite
compass) :
- LED lights up red
- Horizontal lines on the digital display
(yellow)
Settling stage:
- LED lights up yellow
- Numerical heading indication (a point is displayed at the
end of the displayed value during the settling stage)
(green)
Normal operation:
- LED lights up green
- Numerical heading indication after end of the settling
phase, heading is available