Furuno FR-2125V - Manual (Page 31)

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1.18 Measuring the Bearing
Use the Electronic Bearing Lines (EBLs) to take bearings of a target. There are two EBLs,
No. 1 and No. 2, which are toggled by successive presses of the [EBL ON] key. Each EBL
is a straight dashed line extending out from the own ship position up to the circumference
of the radar picture. The fine dashed line is the No. 1 EBL and the coarse dashed one is
the No. 2 EBL.
1. Press the [EBL ON] key to display either of the EBLs. Successive presses of the [EBL
ON] key toggle the active EBL between No. 1 and No. 2 and the currently active EBL
readout is marked with >... <.
2. Rotate the EBL rotary control clockwise or counterclockwise until the active EBL bi-
sects the target of interest, and read its bearing at the lower-left corner of the screen.
3. Press the [EBL OFF] key to erase each EBL.
000 010
020
030
040
050
060
070
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090
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170 180 190
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No.2
EBL
Target
blip
No.1
EBL
EBL
>032.5
°
T<
298.0
°
T
Active EBL is indicated with this marker.
Range markers
on EBLs
Figure 1-21 How to measure bearing with EBL
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, as determined by the RADAR 1 menu settings.
Each EBL carries a range marker, or a short line crossing the EBL at right angles. Its
distance from the EBL origin is indicated at the VRM readout whether or not the corre-
sponding VRM is displayed. The range marker changes its position along the EBL with the
rotation of the VRM control.