Installation Manual 49 Y1-03-0212 Rev. E56 AIS: ENTER MMSI NUMBER No valid MMSIentered.Reaction: During the initial boot or after “factory settings” the user isasked to enter a valid MMSI. As long as this is not done, the systemdoes not transmit.Remedy: Enter a valid MMSI5.3 Text MessagesID Description Text Cause/Source Reaction of the System / Remedy07 AIS: UTC clock lost Internal GPSReaction: the transponder unit continues operation using indirect orsemaphore synchronisationRemedy:Check GPS Antenna for AIS.21 AIS: external DGNSS in use Information Reaction: Positioning is fully operationalRemedy: no action required22 AIS: external GNSS in use InformationReaction: The transponder unit continues operation using the positiondata from a GNSS receiverRemedy: no action required23 AIS: internal DGNSS in use(beacon) 023 InformationReaction: The transponder unit uses position data from the internalsource. The internal GNSS receiver is capable of processing DGNSScorrections.Remedy: no action required24 AIS: internal DGNSS in use(message 17)25 AIS: internal GNSS in useInformationadditional toAlarm ID 25Reaction: The transponder unit continues operation using the positiondata from the internal GPS.RemedyCheck the sensor and the cabling; Check if the system that delivers thedata is working; Check the baud rate settings of the sensor input27 AIS: external SOG/COG in use Information Reaction: COG/SOG is in full operationRemedy: no action required28 AIS: internal SOG/COG in useInformationadditional toAlarm ID 29 orID 30Reaction: The transponder unit continues operation using the data fromthe internal GPS.Remedy:Check the sensor and the cabling; Check if the system that delivers thedata is working; Check the baud rate settings of the sensor inputs31 AIS: Heading valid Information Reaction: Heading is in full operationRemedy: no action required33 AIS: Rate of Turn Indicator inuse Information Reaction: A Rate Of Turn indicator is connected and in full operationRemedy: no action required34 AIS: Other ROT source in use InformationReaction: The transponder unit is operating with ROT data rather thanwith 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 NAUTICASTThe NAUTICAST can be restarted during operation by pressing the keys “Shift” + “Fn” + “Del”simultaneously. It may take up to 6 minutes to receive all information from other ships againbecause of their reporting interval.