Displaying Ais Information [Tgt Data] - JRC JMA-7133-SA Instruction Manual

JMA-7100 Instruction Manual
5.3.5

Displaying AIS Information [TGT DATA]

5.3.5.1 Types of information displayed
There are two modes (simple and detail) to display AIS target information. The
display items are determined by the selected mode.
Display Item
NAME (ship name)
Call Sign
MMSI
COG (course over ground) or CTW (course through water)
SOG (speed over ground) or STW (speed through water)
CPA (closest point of approach)
TCPA (time to CPA)
BRG (true bearing)
Range
HDG (heading bearing)
ROT (rate of turn)
POSN (latitude / longitude)
Destination (waypoint)
NAV Status
i. The detail mode displays the numeric data of only a single ship, the simple mode can display the
numeric data of up to two ships.
ii. 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.
iii. If the numeric information of ROT is blank, the radar is receiving the AIS data which is cannot dis-
played. In this case, you can only trust the turning drection which is indicated by the turn indicator.
The turn indicator is displayed on the AIS symbol as the line prependicular to the heading direc-
tion. (See the Section 5.1.2.2 "Types and Definitions of AIS Target Symbols")
The detail mode displays the numeric data of only a single ship, the simple mode can display
the numeric data of up to two ships.
For NAV Status, one of the following statuses is displayed in accordance with
Navigation Status:
>
5.OPERATION OF TARGET TRACKING AND AIS
i
ii
iii
No. Status
0 Under Way Using Engine
1 at Anchor
2 Not Under Command
3 Restricted Manoeuvrability
4 Constrained by Her Draft
5 Moored
6 Aground
5－ 29
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5.3 AIS OPERATION
Detail mode Simple mode
Up to 20 characters
Up to 7 characters
Up to 9 characters
0.1° unit
0.1kn unit
0.01NM unit
0.1min unit
0.1° unit Not
displayed
0.01NM unit
0.1° unit
0.01° /min
0.0001' unit
Up to 20
characters
Status (number)
5