Measuring The Bearing - Furuno FA Manual

Marine radar/arpa far-28x7 series; far-21x7 series; far-21x7-bb series
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1.21

Measuring the Bearing

Use the Electronic Bearing Lines (EBLs) to take bearings of targets. There are
two EBLs, No. 1 and No. 2. 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.
1.21.1
Measuring the bearing
By keyboard
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. The
currently active marker is enclosed with >.....<.
2. Operate the EBL rotary control clockwise or counterclockwise until the active
EBL bisects the target of interest, and read its bearing at the lower-left corner
of the screen.
Note: Each EBL carries a range marker, or a short line crossing the EBL at
3. Press the [EBL OFF] key to erase each EBL.
right angles and its distance from the EBL origin is indicated at the
VRM readout whether or not the corresponding VRM is displayed. The
range marker changes its position along the EBL with the rotation of
the VRM control.
1. RADAR OPERATION
1-37

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