Basic Operation of Radar
Radar/Chart Radar User Guide
3-14
65900010
Range Rings
The Range Ring button enables you to toggle the
display of range rings on or off. When range rings
are switched on the button shows the current scale in nautical miles (NM).
The range rings are centred on own ships
CCRP
and are equally spaced.
Range rings are drawn out to the edge of the display, irrespective of the
range scale or any offsetting of the CCRP.
The range ring interval is dependent on the currently selected range scale.
The table below lists when the range ring interval changes at a particular
range scale.
Range Scale
(NM)
Range Ring Interval
(NM)
0.125 0.025
0.25 0.05
0.5 0.1
0.75 0.25
1.5 0.25
3 0.5
6 1
12 2
24 4
48 8
96 16
Summary of Contents for VisionMaster FT
Page 1: ...Radar Chart Radar User Guide Northrop Grumman Sperry Marine B V Part Number 65900010 ...
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