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5.3.12 AIS Alarm Display
Alarm messages for the AIS system:
Error Message Description
COA/TCPA There is a dangerous target.
LOST There is a lost target.
AIS MAX TARGET
The system received data (of the 50-th ship) over the specified maximum
number of AIS symbols.
AIS (DATA) The AIS data-format is incorrect. (Checksum error etc.)
AIS I/F (DATA) The AIS interface is not connected to the radar correctly, or it is faulty.
AIS ALARM ***
Alarm information issued with the ALR sentence by the AIS
*** is a 3-digit number which is Local Alarm No in the ALR sentence.
For AIS alarms, refer to the table below.
AIS The AIS is not connected correctly, or the power is off.
Numbers and definitions of AIS alarms which might appear on the radar display
Alarm No. Definition
001 Transmission alarm
002 VSWR calculation result alarm
003 Receive channel 1 alarm
004 Receive channel 2 alarm
005 Receive channel 70 alarm
006 General error
008 Connection alarm between the transponder and controller
025 External EPFS connection alarm
026
The internal GPS is disabled, and latitude/longitude data has not been received from the external
sensor or the data is invalid.
029
The internal GPS is disabled, and SOG data has not been received from the external sensor or the
data is invalid
030
The internal GPS is disabled, and the COG command below has not been received from the
external sensor or the data is invalid.
032 Course data has not been received from the external sensor, or the data is invalid.
035 ROT data has not been received from the external sensor, or the data is invalid.
Reference:
An error message is displayed at the lower right of the radar display.
Error message display area
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