1. OPERATIONAL OVERVIEW
1-19
1.17.1
EBL reference
The EBL readout is affixed by "R." (relative) if it is relative to own ship's heading, "T." (true) if it is
referenced to the north. You may choose relative or true in the head-up modes; in all other modes
it is always TRUE.
1. Press the
MENU
key to open the menu.
2. Choose the Mark menu and then press the
ENTER
key.
3. Choose EBL Reference and then press the
ENTER
key.
4. Choose Relative or True as appropriate and then press the
ENTER
key.
5. Press the
MENU
key to close the menu.
1.18
Measuring the Range and Bearing Between Two
Targets
You may shift the origin of the EBL to measure the range and bearing between two targets.
1. Press the
EBL
key to circumscribe the bearing indication of EBL1 or EBL2 with a dashed
rectangle.
2. Drag the EBL to the location of one target and then press the
ENTER
key to anchor the EBL.
3. Roll the trackball to shift the range marker to the location of the other target.
4. Read the bearing and range indications at the bottom of the screen.
Measuring range and bearing between two target with the EBL
To return the origin of the EBL to the screen center, press the
EBL
key to circumscribe the indi-
cation of that the EBL with a solid rectangle.
Relative
True
R2
No. 1
EBL
No. 2
EBL
Range
Marker
Range/bearing
between targets 3 and 4
EBL1
EBL2
>140.0
°
R<
335.2
°
R
VRM1
VRM2
>0.500NM<
0.980NM
Range
Marker
Target 4
Target 3
Target 1
EBL
origin
+
+
Target 2
Range/bearing
between targets 1 and 2
