Measuring Range By Vrm; Various Vrm Operations - Furuno NAVNET 1734C Operator's Manual

2. RADAR OPERATION

2.10.3 Measuring range by VRM

1. Press the EBL/VRM key to display the 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 then place the VRM on the inside edge of a radar target. Read
the VRM indication to find range to the target.
(Dotted line)
(Dashed line)
VRM1 range
VRM2 range
4. You may hide the EBL/VRM soft keys by pressing the EBL/VRM key.

2.10.4 Various VRM operations

Erasing a VRM, VRM indication: Press appropriate VRM soft key, then press the CLEAR
key. The VRM is erased and its indication becomes blank.
Erasing EBL/VRM data boxes: Press the EBL or VRM soft key associated with the
EBL/VRM data box you wish to erase. Press the CLEAR key once or twice to erase the
data box.
Hiding EBL/VRM data boxes: Press the ZOOM & D. BOX and D. BOX ON/OFF soft keys
to show or hide the EBL/VRM data boxes.
Moving EBL/VRM data boxes: When an EBL/VRM data box is obscuring a target you
want to see, you can move it to another location as shown below. This cannot be done
when the EBL/VRM soft keys are shown.
1. Press the EBL/VRM key to turn off the EBL/VRM soft keys.
2. Using the Cursor pad, place the cursor inside the data box you wish to move. As the
cursor enters the box it changes to a "hand." Push the ENTER knob, and the hand
changes to a fist, meaning the box is correctly selected.
3. Use the Cursor pad to move the data box to the location desired, then push the ENTER
knob.
2-10
.250/ .125nm
SP
H-UP
VRM1
VRM2
EBL2
EBL1
---.- R
VRM1 VRM2
0.119nm
How to measure range with the VRM
319.9
M
EBL
VRM
EBL1
ON
VRM1
ON
OFFSET
EBL2
ON
VRM2
ON
359.9 R
+
---.- R
0.240nm
0.242nm
Active marker is highlighted.