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

Page: 39 / 192

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The operator may select one of the available heading sources as the
“active” source, i.e. the heading reference to be distributed to compass
repeaters, heading control system, RADAR, ECDIS etc.
Depending on the system configuration, the active heading source is
either selected from the NAVIGAT X MK 1 control and display unit (sin-
gle or dual gyrocompass systems) or from an external device such as a
NAVITWIN compass monitor/heading management system,
a NAVIPILOT heading control system or an external selector switch.
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To change the active heading source from
the control and display unit:
• Press the selector key next to the
desired source’s heading display.
⇒
The selected source is made active.
>F1 GYRO 1 271.2
°
F2 GYRO 2 271.4
°
F3 MAGN.C. 270.9
°
DIFF G1/G2 5
°
ü
F1 GYRO 1 271.2
°
>F2 GYRO 2 271.4
°
F3 MAGN.C. 270.9
°
DIFF G1/G2 5
°
ü
kçíÉ If the system is configured for source selection from an external device,
selection from the control and display unit is disabled.
The active heading source can be changed in a manual steering mode
only.
In automatic steering modes, source selection is disabled and an error
beep sounds when an attempt is made to change the active source.