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2. RADAR OPERATION
2-11
2.10 Measuring the Range
You can measure the range to a radar target three ways: by the range rings, by
the cursor, and by the VRM (Variable Range Marker).
2.10.1 Measuring range by range rings
Count the number of rings between the center of the display and the target.
Check the range ring interval and judge the distance of the echo from the inner
edge of the nearest ring.
To turn the range rings on, do the following:
1. If not displayed, press the [HIDE/SHOW] key to show the radar soft keys.
2. Press the RADAR DISPLY soft key.
RADAR
DISPLAY
+
SHIFT
HL
OFF
RETURN
MODE
HD UP
RINGS
MED
.250/ 319.9
°
M
.125nm
SP
H-UP
359.9
°
R
0.277nm
Radar display soft keys
3. Press the RINGS soft key to change the brilliance among LOW, MED, HIGH
and OFF.
4. Press the RETURN soft key to finish.