How To Set Vrm Attributes - Furuno FCR-21x9-BB Operator's Manual

2. RADAR, CHART RADAR OPERATION
How to measure the range from the trackball module
1. Click the title bar on a VRM box to activate the corresponding VRM.
2. Spin the scrollwheel or use the trackball to align the active variable range marker
with the inner edge of the target of interest and read its distance at the bottom-
right position on the screen. Each VRM remains at the same geographical dis-
tance when you operate the range control. This means that the apparent radius of
the VRM ring changes in proportion to the selected range scale set the outer edge
of the VRM on the inner edge of the target.
3. To anchor the VRM, push the left button.
To turn off a VRM, click the arrow in the applicable VRM box. The VRM disappears
and the VRM box is minimized.
2.9.2

How to set VRM attributes

You can customize the VRMs to suit
your needs.
1. Open the menu then select [3
NAV TOOL] and [2 EBL VRM] (B
type) or [2 EBL/VRM CURSOR]
(IMO and A types) to display the
[EBL/VRM] menu (EBL/VRM/
CURSOR menu for the IMO and
A types).
2. For the B-type radar, select [3
VRM1] or [4 VRM2] as appropri-
ate. Spin the scrollwheel to select
desired unit then push the left
button.
3. Select [6 VRM TTG] (B type) or [2
VRM TTG] (IMO and A types) and then select the VRM(s) that are to show/hide
the TTG indication. [OFF] shows no TTG indication.
4. The [LINK EBL] option for [7 VRM OFFSET] automati-
cally activates the corresponding VRM when the offset
EBL is enabled.
5. Close the menu.
2-12
IMO- and A-type radars
B-type radar
320
310
300
290
280
270
260
250
240
230
220
000
350 010
340 020
330 030
040
VRM
050
060
070
080
090
Offset
100
EBL
110
120
130
140
210
150
200 160
190 170
180