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5.3 Text Messages
ID
Description Text
07
AIS: UTC clock lost
AIS: external DGNSS in
21
use
AIS: external GNSS in
22
use
AIS: internal DGNSS in
23
use (beacon) 023
AIS: internal DGNSS in
24
use (message 17)
25
AIS: internal GNSS in
use
27
AIS: external SOG/COG
in use
AIS: internal SOG/COG
28
in use
AIS: Heading valid
31
AIS: Rate of Turn
33
Indicator in use
AIS: Other ROT source
34
in use
Installation Manual
Reaction of the System / Remedy
Cause/Source
Reaction: the transponder unit continues operation using indirect or
Internal GPS
semaphore synchronization
Remedy:
Check GPS Antenna for AIS.
Reaction: Positioning is fully operational
Information
Remedy: no action required
Reaction: The transponder unit continues operation using the position
Information
data from a GNSS receiver
Remedy: no action required
Reaction: The transponder unit uses position data from the internal
source. The internal GNSS receiver is capable of processing DGNSS
Information
corrections.
Remedy: no action required
Reaction: The transponder unit continues operation using the position
Information
data from the internal GPS.
additional to Alarm
Remedy
ID 25
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
Reaction: COG/SOG is in full operation
Information
Remedy: no action required
Information
Reaction: The transponder unit continues operation using the data
from the internal GPS.
additional to Alarm
Remedy
ID 29 or ID 30
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
Reaction: Heading is in full operation
Information
Remedy: no action required
Reaction: A Rate Of Turn indicator is connected and in full operation
Information
Remedy: no action required
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
left at 720 degrees per minute or higher)
23
( turning
Y1-03-0219 Rev. A
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