Measurement By Trackball - JRC JMA-610 Series Instruction Manual

4.1

MEASUREMENT BY TRACKBALL

1 Make sure of the target echoes on the radar display.
Procedures
2 Move the cursor mark to a target by the trackball.
The
range is a distance from own ship's position.
CURSOR on the radar display indicates the bearing and range of the target. The
45.0 : True bearing of the cursor relative to own ship
3km: Range between the cursor and own ship
Figure 4.1
4-1
4.1 MEASUREMENT BY TRACKBALL
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