Furuno 1823C-BB Operator's Manual page 45

3. Rotate the [ENTER] knob to place the VRM on the inside edge of a radar
target. Read the VRM indication to find range to the target.
You may also adjust the VRM, within the range ring interval, by pressing the
VRM soft key.
VRM2
(Dashed line)
VRM1
(Dotted line)
VRM1 range
4. You may hide the EBL/VRM soft keys by pressing the [EBL/VRM] key.
Erasing a VRM, VRM indication
Press appropriate VRM soft key (B or E key), then press the [CLEAR] key. The
VRM is erased and its indication becomes blank.
Erasing VRM data boxes
Press the VRM (B or E key) soft key associated with the VRM data box you wish
to erase. Press the [CLEAR] key once or twice to erase the data box.
Hiding VRM data boxes
Press the E:ZOOM & D. BOX and D:D. BOX ON/OFF soft keys to show or hide
the VRM data boxes.
Moving VRM data boxes
When an 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 trackball, place the cursor inside the data box you wish to move.
As the cursor enters the box it changes to a "open hand." Push the [ENTER]
knob, and the hand changes to a fist, meaning the box is correctly selected.
3. Use the trackball to move the data box to the location desired, then push the
[ENTER] knob.
3nm
12/
LP
H-UP
EBL2
EBL1
---.-°R
---.-°R
VRM2
VRM1
9.343nm
3.123nm
Active VRM is highlighted.
VRM2 range
How to measure range with the VRM
offered by Busse-Yachtshop.de
2. RADAR OPERATION
319. 9 °
EBL
M
VRM
EBL1
A
ON
VRM1
B
ON
C OFFSET
EBL2
D
ON
VRM2
E
ON
359.9 ˚R
+
11.70
nm
2-13