Marine Systems
Aviation Recorders
Page 2–26
Initial Issue
165M0601-00
Feb. 01/05
Table 2–5. Sensor Status Indications Signalled Using TXT Sentence Formatter
Text Message
T
ext Identifier
Reaction of the system
AIS: UTC clock lost
007
Continue operation using indirect or semaphore
synchronization
AIS: external DGNSS in use
021
Continue operation
AIS: external GNSS in use
022
Continue operation
AIS: internal DGNSS in use (beacon)
023
Continue operation
AIS: internal GNSS in use (message 17)
024
Continue operation
AIS: internal GNSS in use
025
Continue operation
AIS: external SOG/COG in use
027
Continue operation
AIS: internal SOG/COG in use
028
Continue operation
AIS: Heading valid
031
Continue operation
AIS: Rate of Turn Indicator in use
033
Continue operation
AIS: Other ROT source in use
034
Continue operation
AIS: Channel management parameters changed 036
Continue operation
As per IEC 61193–2