Furuno 1722C - Measuring Range by VRM

2. RADAR OPERATION
2-14
2.10.3 Measuring range by VRM
1. Press the [EBL/VRM] key to display the EBL/VRM soft keys.
.250/ 319.9
°
M
.125nm
SP
H-UP
EBL
VRM
+
359.9°R
0.240nm
EBL1
ON
VRM1
ON
OFFSET
EBL2
ON
VRM2
ON
EBL/VRM soft keys
2. Press the VRM1 ON (dotted ring VRM) or VRM2 ON (dashed ring VRM) soft
key to select the desired VRM. The selected VRM’s indication, at the bottom
of the screen, is highlighted.
3. Rotate the [ENTER] knob the place the VRM on the inside edge of a radar
target. Read the VRM indication to find range to the target.
4. You may hide the EBL/VRM soft keys by pressing the [EBL/VRM] key.
.250/ 319.9
°
M
.125nm
SP
H-UP
VRM1
(Dotted line)
VRM2
(Dashed line)
VRM1 range
VRM2 range
Active marker is highlighted.
+
359.9°R
0.240nm
EBL
VRM
EBL1
ON
EBL1
---.-°R
VRM1
0.119nm
EBL2
---.-°R
VRM2
0.242nm
VRM1
ON
OFFSET
EBL2
ON
VRM2
ON
How to measure range with the VRM