Furuno NAVNET GD-1920C - Manual (Page 38)

2. RADAR OPERATION
2-9
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.
EBL
VRM
EBL1
ON
359.9 ˚R
11.70
nm
+
VRM1
(Dotted line)
VRM2
(Dashed line)
VRM1 range
Active VRM is highlighted.
OFFSET
EBL2
ON
VRM1
ON
VRM2
ON
EBL1
---.- ° R
VRM1
3.123nm
EBL2
---.- ° R
VRM2
9.343nm
VRM2 range
319. 9
°
M
12/
H-UP
3nm
LP
How to measure range with the VRM
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 Trackball, 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 Trackball to move the data box to the location desired, then push the ENTER
knob.