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When a target under tracking or the own ship steers away from the course, or when the radar acquires
a new target, its vector may not reach the required accuracy until 3 minutes passes after the acquisition
or the change of course. Even 3 minutes later, the vector may include some errors depending on the
tracking condition.
5.5.1 Types of Data Readouts to be Displayed
Target Data
Target ID (TARGET) : ID of target being displayed.
True bearing (T BRG) : In units of 1°
Range (RNG) : In units of 0.1 NM
True course (T CSE) : In units of 1°
True speed (T SPD) : In units of 0.1 knot
Closes point of approach (CPA) : In units of 0.1 NM
Time to closest point of approach (TCPA) : In units of 1 minute
For the data reading target, the symbol “ ” and the ID are displayed to distinguish it
from other targets.
Note
● When the symbol whose numerical data have been displayed is not found on the
screen, the target is outside the screen (the display range).
5.5 Data Reading
Attention
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