GMR 21/41 Owner’s Manual
b
asIc
o
PeratIon
>
r
adar
P
age
3. Using the
ROCKER
, define the area on the Radar Page by
adjusting three points:
Corner 1
,
Corner 2
, and
Circular
.
4. Press
ENTER
to set the Guard Zone.
VRM/EBL
The Variable Range Marker (VRM) and Electronic Bearing Line
(EBL) tools measure range and bearing to a target. You can move
the center point of the VRM, which allows you to measure from one
target to another. Two VRM/EBL tools can be activated at the same
time.
The VRM/EBL option has two tools, VRM/EBL 1 and VRM/EBL 2.
EachVRM/EBL tool has two settings,
Show
(
Hide
) and
Adjust
.
Varable Range Marker (VRM)
Electronc Bearng Lne (EBL)
To enable VRM/EBL 1 or VRM/EBL 2:
On the Radar adjustment menu, highlight
Show
VRM/EBL 1
or
VRM/EBL 2
, and then press
ENTER
.
You can adjust the diameter of the VRM and the angle of the EBL.
To adjust the VRM/EBL:
1. Highlight
Adjust
,
and press
ENTER
.
2. Press right or left on the
ROCKER
to rotate the EBL around
the center point of the VRM.
3. Press up or down on the
ROCKER
to increase or decrease
the size of the VMR.
4. Press
ENTER
to accept the changes.
To move the center location of the VRM:
1. Highlight
Move
, and press
ENTER
.
2. Using the
ROCKER
, move the center point of the VRM to the
selected location.
3. Press
ENTER
to set the new location.
To use the VRM/EBL, expand the diameter of the VRM so that the
outer edge touches the target. Rotate the EBL until it intersects the
VRM at the target location. The measured range and bearing are
shown in the lower-left corner of the screen.
Summary of Contents for GMR 21/41
Page 1: ...Owner s Manual marine radar GMR 21 41...
Page 25: ......
