JRC JMA-610 Series - 4.1 Measurement by Trackball

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