4 – 2
4
Measurement by Range Rings
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……Measurement by Range Rings ……………………………………
1 Press .
The Range Rings will appear on the radar display.
The range between the target and own ships can be determined by visually measuring the target’s
position that lies between two range rings. (The range ring interval is fixed and indicated at the
upper left of the radar display.)
……Measurement by EBLs and VRMs …………………………………
1 Press to select EBL1 display and operation.
The “EBL1” indication at the lower right of the radar display will be selected and the EBL1 will
appear as a broken-line on the PPI display.
2 Turn the [EBL] control to put EBL1 on a target.
The bearing of the EBL1 will appear at the lower right of the radar display. The EBL1 bearing
represents the target’s bearing.
3 Press to select VRM1 display and operation.
The “VRM1” indication at the lower right of the radar display will be selected and the VRM1 will
appear as a broken-line circle on the PPI display.
4 Move the broken-line VRM1 to the target by using the trackball.
The range of the VRM1 from own ship will appear at the lower right of the radar display. The
range of VRM1 signifies a distance between the target and own ship.
Refer to Fig.4.2 in the next page.
In this figure, the range and bearing are;
Range : 5.0nm
Bearing : 45.0˚
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