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Y1-03-0211 Rev D 91
56
AIS: ENTER MMSI
NUMBER
No valid MMSI
entered.
enter a valid MMSI. As long as this is not done, the system does not transmit.
Remedy: Enter a valid MMSI
5.3 Text Messages
ID
Description Text
Cause/Source
Reaction of the System / Remedy
07
AIS: UTC clock lost
Internal GPS
Reaction: the transponder unit continues operation using indirect or
semaphore synchronisation
Remedy:
Check GPS Antenna for AIS.
21
AIS: external DGNSS in
use
Information
Reaction: Positioning is fully operational
Remedy: no action required
22
AIS: external GNSS in
use
Information
Reaction: The transponder unit continues operation using the position data
from a GNSS receiver
Remedy: no action required
23
AIS: internal DGNSS in
use (beacon) 023
Information
Reaction: The transponder unit uses position data from the internal source.
The internal GNSS receiver is capable of processing DGNSS corrections.
Remedy: no action required
24
AIS: internal DGNSS in
use (message 17)
25
AIS: internal GNSS in
use
Information
additional to
Alarm ID 25
Reaction: The transponder unit continues operation using the position data
from the internal GPS.
Remedy
Check the sensor and the cabling; Check if the system that delivers the data
is working; Check the baud rate settings of the sensor input
27
AIS: external SOG/COG
in use
Information
Reaction: COG/SOG is in full operation
Remedy: no action required
28
AIS: internal SOG/COG
in use
Information
additional to Alarm
ID 29 or ID 30
Reaction: The transponder unit continues operation using the data from the
internal GPS.
Remedy:
Check the sensor and the cabling; Check if the system that delivers the data
is working; Check the baud rate settings of the sensor inputs
31
AIS: Heading valid
Information
Reaction: Heading is in full operation
Remedy: no action required
33
AIS: Rate of Turn
Indicator in use
Information
Reaction: A Rate Of Turn indicator is connected and in full operation
Remedy: no action required
34
AIS: Other ROT source
in use
Information
Reaction: The transponder unit is operating with ROT data rather than with
TIROT data - therefore the AIS only differs between
+ 127 (turning right at 720 degrees per minute or higher) and
127 (turning left at 720 degrees per minute or higher)
5.4 Restarting the NAUTICAST
The NAUTICAST could be restarted during operation by pressing the keys
y. It could take up to 6 minutes to receive all information
from other ships again because of their reporting interval.