User's Manual

MDC-5200/5500 Series Chapter 2 Radar Basic Operation
0093155002-03 2-21
2.12 Measurement of distance by RR and VRM
There are three ways to measure distance to a target: Range Rings, Cursor or VRM.
Display Range Rings (RR)
Range rings (RR) are markers displayed at the specified distance from reference point.
They are used as a rough indication of the distance to a target.
1 Press MENU key to display “Menu”.
Select [NAV TOOL] => [RR] => [RR] => [ON], and press ENT key.
Note: [RR] display can be changed directly in the upper left of the display, by moving cursor and
pressing ENT key.
Note: When [NAV TOOL] => [BRG TRUE / REL] => [TRUE] is selected, 0° of the range rings indicates
North direction.
While, when [REL] is selected it indicates heading direction.
Rang rings
6
1NM
Range 6NM
Ring separation 1NM
Ring separation
Range
Range rings interval
Range rings interval 1NM
Range rings
RR on
“1” means range rings interval