JRC JMA-9822-6XA - 4.1 Measurement by Trackball

4 – 1
……Measurement by Trackball …………………………………………
1 Check the target echoes on the radar display.
2 Move the cross 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.
Fig.4.1
Procedures