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1
ECHO STRETCH
2
INT. REJECT
3
NAV DATA
4
VIDEO
5
WATCHMAN
6
DIMMER
7
DSPL ON STBY
8
TRAIL TIME
9
TRAIL BRILL
10
RANGE
1.14 Control Panel Brilliance
1. Press the [MENU] key.
2. Select DIMMER.
3. Select level desired; 3 is the highest level of
illumination.
4. Press the [MENU] key.
1.15 Measuring the Range
The bearing to a target can be measured by the
range rings, by the cursor and by the VRM
(Variable Range Marker).
Measuring range by the 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.
Table 1-1 Menu description
Stretches echoes in the range direction.
Suppresses radar interference.
Turns navigation data on/off.
Displays echoes in black or white.
Selects transmitting interval.
Adjusts control panel brilliance.
Turns navigation data display in standby on/off.
Select trail time (target echo plotting interval).
Selects echo trail brilliance.
Selects range to use.
Measuring range by VRM
1. Press the [VRM] key to turn on the VRM.
2. Within 10 seconds after turning on the VRM;
3. Check the VRM readout at the bottom left
To erase the VRM, press and hold down the
[VRM] key until the VRM disappears.
Note: The VRM is "frozen" on the display when
the [VRM] key is pressed a second time, or 10
seconds elapses without pressing ▲ or ▼.
When the VRM is fixed on the screen "VRM" is
not highlighted.
Description
that is, while "VRM" is highlighted, press ▲
or ▼ to place the VRM on the inside edge
of the target.
corner on the screen.
6.0
NM
2.0
045.0
2.42
2.42
VRM
NM
VRM
range
Figure 1-13 How to measure range by
the cursor and VRM
Target
Cursor
VRM
NM
Cursor
range
7
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