Furuno FAR-28x7 Series Operator's Manual page 60

1. RADAR OPERATION
By trackball
1. Roll the trackball to place the arrow in the EBL1 or EBL2 box, whichever EBL
you want to use.
2. The guidance box reads "EBL ON/." Push the left button to turn on the EBL.
The guidance box now reads "EBL SET L=DELETE /."
3. Push the left button again and the cursor jumps to inside the effective display
area. The guidance box now reads "EBL FIX L=DELETE/."
4. Roll the trackball (coarse adjustment) or wheel (fine adjustment) to bisect the
target with the EBL.
Note: Each EBL carries a range marker, or a short line crossing the EBL at
5. Push the left button to anchor the EBL and fix its readout, or push the right
button to return the EBL to its previous location (bearing).
6. To erase an EBL, choose the appropriate EBL readout box and then push the
left button until the EBL disappears from the screen.
1-34
EBL1
EBL2
EBL boxes
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.
000
350
340
No. 2
330
320
EBL
310
300
290
280
270
260
Range markers
250
on EBLs
240
230
220
210
200
190
°
>128.0 T<
EBL1
°
100.8 T
EBL2
Measuring bearing with EBLs
010
020 Target
030
blip
040
050
060
070
080
090
100
110
120
130
140
150
160
170
180
>10.2 <
NM
VRM1
12.1
NM
VRM2
No. 1
EBL