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2. RADAR OPERATION
2-12
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.
.250/ 319.9
°
M
.125nm
SP
H-UP
RADAR
DISPLAY
+
359.9
°
R
0.24nm
SHIFT
HL
OFF
RETURN
MODE
HD UP
RINGS
ON /OFF
RADAR
DISPLAY
+
359.9
°
R
0.24nm
SHIFT
HL
OFF
RETURN
MODE
HD UP
RINGS
MED
MODEL1722C series MODEL1722 series
.250/ 319.9
°
M
.125nm
SP
H-UP
Radar display soft keys
4. Press the RINGS soft key to select ON (MODEL1722 series) or desired
brilliance (MODEL1722C series) among LOW, MED and HIGH.
To disappear rings, select OFF.
4. Press the RETURN soft key to finish.