User's Manual

Table Of Contents
ED 3100 G 140 / 04 (2011-11)
Operating Instructions
F-1 AIS
F SENSORS.fm / 10.11.11
F-9
NACOS Platinum
Status Information
The fields UTC to DIM D contain status information about own navigational sensors whose data are
transmitted as own AIS data and the reference point of the position reported.
UTC
The status of the internal clock of the transmitter. (Clock Ok or Clock Lost)
POSN
Depending on the connected systems, several different indications are possible.
- External GNSS.... means that the GPS receiver connected externally to the AIS electronics unit is
being used for this purpose. DGNSS is also possible, if differential mode is used by the position
fixing device.
- Internal.... means that the internal GPS receiver in the AIS electronics unit is being used for this
purpose.
SOG/COG
Information about the source of the transmitted SOG/COG data. (External or Internal)
HDG
Status of the heading data (Valid or Invalid)
ROT
Indicated as Valid or Invalid,
- Other source means that an approved ROT sensor is not being used, and so only the direction but
not the rate of the heading change is transmitted. In this case, only the direction of turn (port/star-
board manoeuvre) can be displayed on the receiving system.
The fields DIM A to DIM D show the distance of the reference point to bow, stern, port and starboard
side in meters. The reported position is referenced against this point. Further on the size of the own ship
can be derived from this information.