Operation
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No valid SOG information This alarm occurs if the AIS transceiver has
no valid Speed Over Ground information from
any connected sensor.
Heading lost or invalid This alarm occurs if the AIS transceiver has
no valid heading information from any
connected sensor, or if the heading is
undefined.
No valid ROT information This alarm occurs if the AIS transceiver has
no Rate Of Turn information from connected
sensors or via internal calculation.
No sensor position in use This alarm occurs if the AIS transceiver has
no valid position information from any
connected sensor.
UTC Sync Invalid This alarm indicates that the transmitter is no
longer directly synchronized with the GNSS
receiver. This may be because the GNSS
receiver cannot receive sufficient satellites.
Nav Status Incorrect Nav Status incorrect
This alarm will occur if the navigation status
is in conflict with the current speed of the
vessel. For example the alarm will activate if
the Navigation status is set to moored, but
the vessel speed is greater than 3 knots.
Correct the navigation status to clear this
alarm.
Alarm Description
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