Measuring Range And Bearing Between Two Targets - Furuno FR-1500 MARK-3 Series User Manual

1.21 Measuring Range and Bearing Between Two Targets

1. Press the [EBL OFFSET] key, and place the origin of the No.1 EBL on a target of interest
(target 1 in the illustrated example) by operating the trackball. Note: Only No. 1 EBL can be
offset.
2. Turn the EBL rotary control until the EBL passes through another target of interest (target
2).
3. Turn the VRM rotary control until the range marker on the No. 1 EBL aligns with target 2.
The NO. 1 VRM readout at the lower-right corner of the screen indicates the distance
between the two targets.
4. To return the EBL origin to the own ship position, press the [EBL OFFSET] key again.
Bearing is shown relative to own ship with suffix "R" or as a true bearing with suffix "T" depending
on EBL relative/true settings on the OTHERS menu.
NO. 1 VRM NO. 1 VRM
Target 1 Target 1
Origin of NO. 1 EBL Origin of NO. 1 EBL
90.5°R 90.5°R
335.2°R 335.2°R
R: Bearing relative os heading viewed from Target 1 to 2 R: Bearing relative os heading viewed from Target 1 to 2
T: Bearing relative to north viewed from Target 1 to 2 T: Bearing relative to north viewed from Target 1 to 2
Target 2 Target 2
000 010 000 010
340 350 340 350
330 330
320 320
310 310
300 300
290 290
280 280
270 270
260 260
250 250
240 240
230 230
220 220
210 210
EBL EBL 200 200
190 190
180 180
020 020
030 030
040 040
050 050
060 060
070 070
080 080
090 090
100 100
110 110
120 120
130 130
140 140
150 150
VRM VRM
160 160
170 170
0.505NM 0.505NM
0.205NM 0.205NM
-1.16-
Distance between Distance between
Targets 1 and 2 Targets 1 and 2