User's Manual

JMA-9100 Instruction Manual > 5.OPERATION OF TARGET TRACKING AND AIS > 5.2 TARGET TRACKING OPERATION
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5.2.3 Tracked Target Data Display [TGT DATA]
5.2.3.1 Type of Data Display (Target Information)
The target for which its numeric data is displayed is marked with a symbol
to distinguish from other targets.
If a target's data is displayed, but without the symbol , such a target exists
outside the currently displayed radar display.
5.2.3.2 Method of Displaying Numeric Data [TGT DATA]
Procedures
1) Put the cursor on the tracked target for which numeric data is to
be displayed, and press the [TGT DATA] key.
Then, the data of the designated target will appear, it will be marked with a symbol .
The target data will remain on the radar display until the target is lost and its vector
disappears, or until another target is designated.
If a target with the mark is designated, only its true bearing and range will appear until
its vector appears.
When a target or own ship changes its course, or
when a new target is acquired, its vector may not
reach a given level of accuracy until 3 minutes or
more has passed after such course change or target
acquisition.
Even if 3 minutes or more has passed, the vector
may include an error depending upon the tracking
conditions.
Target Data
Target identification (TT ID) ID number of the target
True bearing(BRG) 0.1° unit
Range 0.01NM unti
Cource 0.1° unit
Speed 0.1knot unit
Closest point of approach
(CPA)
0.01NM unit
Time to CPA (TCPA) 0.1min unit
Bow crossing range (BCR) 0.01NM unit
Bow crossing time (BCT) 0.1min unit
Attention
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