Vrm/ebl – Garmin GMR 20 User Manual
Page 14

10
GMR 20/40 Owner’s Manual
GMR 20/40 O
PERATION
>
T
HE
R
ADAR
A
DJUSTMENT
M
ENU
To Define a Guard Zone:
1. Using the
ARROW KEYPAD, highlight Show Guard Zone 1/2
and press the
ENTER key.
2. Using the
ARROW KEYPAD, highlight Adjust and press the
ENTER key.
3. Using the
ARROW KEYPAD, define the desired area on the
Radar page.
4. Press the
ENTER key to accept the change.
With a Guard Zone selected on the Radar page, Soft Key options may
be available.
VRM/EBL
The VRM (Variable Range Marker) and EBL (Electronic Bearing
Line) tools measure range and bearing to a target. The center point
of the VRM can be moved, allowing measurement from one target to
another. Two V/E tools can be activated at the same time.
The VRM/EBL Menu has two areas, “VRM/EBL 1” and “VRM/EBL
2.” Each area has two settings, a setting to Show/Hide the VRM/EBL
and Adjust.
To activate VRM/EBL 1 or 2:
Using the
ARROW KEYPAD, highlight Show VRM/EBL 1/2
and press the
ENTER key.
The diameter of the VRM and the angle of the EBL are adjustable.
To adjust the VRM/EBL:
1. Using the
ARROW KEYPAD, highlight Adjust and press the
ENTER key.
2. Press the
ARROW KEYPAD right/left to rotate the Electronic
Bearing Line around the center point of the VRM.
3. Press the
ARROW KEYPAD up/down to increase/decrease
the size of the Variable Range Marker.
4. Press the
ENTER key to accept the changes.
Variable Range Marker
(VRM)
Electronic Bearing Line
(EBL)