Furuno GD-280, Руководство оператора

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11-12
11.5.2 Measuring bearing
Measuring bearing by the +cursor
Use the +cursor to take a rough measurement of the bearing to a target. Place the +cursor on
the center of the target. The range and bearing to the target are shown at the top-left corner on
the display.
Measuring bearing by the EBL
Use the Electronic Bearing Lines (EBLs) to take bearings to 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 bisects 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.
No.1 EBL
(Dotted)
〉
45.5
°
T
←
No.1 EBL Bearing
314.0
°
T
←
No.2 EBL Bearing
+Cursor
Target
No.2 EBL
(Dashed)
 〉 
Active marker
The EBL readout is affixed by R (relative) if it is relative to own ship's heading, or T (true) if it is
referenced to the north. You can choose relative or true bearing on the page 2 of the radar Initial
Setting menu.