Displaying Numeric Data Of Ais Targets (Tgt Data) - JRC JMA-5204 Instruction Manual

5.3.6 Displaying Numeric Data of AIS Targets (TGT DATA)

Numerical data for a specified AIS target is displayed.
Types of numeric data displayed
Display items
Navigation information
BRG (true bearing)
RANGE
COG (course over ground)
SOG (speed over ground)
CPA (closest point of approach)
TCPA (time to CPA)
HDG (heading bearing)
ROT (course change speed)
Destination and location information
Destination
Estimated time of arrival
L/L (latitude/longitude)
Position fixing device
RAIM
Position fixing accuracy
Ship information
NAME (ship name)
CALL SIGN
MMSI
IMO number
Navigation status
AtoN information
AtoN class
AtoN type
If missing is displayed in place of the numeric information of ROT, the radar is receiving the AIS data which
cannot is displayed. In this case, you can only trust the turning direction which is indicated by the turn indicator.
The turn indicator is displayed on the AIS symbol as the line perpendicular to the heading direction. (Refer to
Section 5.1.2 "Types and Definitions of AIS Target Symbols")
If the numeric information of SOG or STW is 102.2kn, the target ship's speed is 102.2kn or over. Then the
system cannot calculate CPA and TCPA. Therefore, missing is indicated in the CPA and TCPA information.
5.3 AIS OPERATION
0.01 unit
0.01nm unit
0.1 unit
0.1knot unit
0.1nm unit
0.1min unit
1 unit
0.01 /min
0.0001' unit
Up to 20 characters
Up to 7 characters
Up to 9 characters
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