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2. RADAR, CHART RADAR OPERATION
2-26
2.20 How to Measure the Range and Bearing Between
Two Targets
How to measure the range and bearing between two targets from the Control
Unit
1. Press the EBL 1 key to activate EBL1.
2. Operate the trackball to place the origin of the EBL 1 on a target of interest.
3. Press the EBL OFFSET key.
4. Operate the EBL rotary control to bisect the other target of interest.
5. Press the VRM 1 key to activate VRM 1.
6. Operate the VRM rotary control until the range marker on the EBL is on the inside
edge of target 2.
You can repeat the same procedure on third and fourth targets (targets 3 and 4) by
using the EBL 2 and the VRM 2.
Bearing is shown relative to own ship with suffix "R" or as a true bearing with suffix "T".
To return the EBL origin to the screen center, push the EBL OFFSET key.
How to measure the range and bearing between two targets from the track-
ball module
1. Right-click the display area to show the context-sensitive menu.
2. Select [EBL Offset] then [EBL 1].
3. Put the origin of the EBL on a target of interest.
4. Push the left button to anchor the EBL.
5. Put the cursor on the EBL 1 box then spin the scrollwheel or use the trackball to
bisect the other target of interest.
6. Put the cursor on the VRM 1 box then spin the scrollwheel to put the range marker
on the EBL on the inside edge of target 2.
You can repeat the same procedure on third and fourth targets (targets 3 and 4) by
using the EBL 2 and the VRM 2.
Bearing is shown relative to own ship with suffix "R" or as a true bearing with suffix "T".
To return the EBL to its origin, open the context-sensitive menu then select [Reset
EBL].
000
010
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090
100
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Range/bearing between
targets 3 and 4
Range/bearing between
targets 1 and 2
Range marker
EBL 2
EBL 1
Target 1
Target 2
Target 3
Target 4
EBL origin
Range marker
VRM 1
VRM 2
TTG 45:02 TTG 99:59
0.500 0.980
NM
NM
R
EBL 1
EBL 2
140.0° 335.2°
R