Raymarine DSM250, Руководство пользователя

Страница: 99 / 122

Chapter 6: Sonar Mode Operation 6-11
The distance-from-boat continues to update as your boat moves.
However, the vertical line does not scroll with the scrolling sonar
image. If the display range changes, the VRM adjusts its relative
position so that it does not move out of the visible display area.
When you switch on the VRM, it is displayed at its last position
(unless off screen, in which case it is displayed on-screen).
If the sounder is in split frequency display mode or a zoom win-
dow is displayed with the scrolling sonar image, then the VRM is
shown in both windows at the same position.
If bottom lock is displayed with the scrolling sonar image, the
crosshair lines appear in bottom lock window but not in the scroll-
ing sonar window.
➤
To switch the VRM on, or re-position an off-screen VRM:
1. Press
VRM/EBL
.
The VRM is displayed in its last-used position.
The cursor is positioned at the center of the crosshair and has con-
trol of the VRM, as indicated by four-way arrow, the solid
crosshair and the text
VRM
.
2. Use the trackpad to position the center of the crosshair over the
desired object. The depth and distance-from-boat are updated as
you move the cursor.
3. Press
ENTER
to drop the VRM. The crosshair is displayed as a
dashed line.
➤
To move a VRM:
1. Move the cursor over the VRM you wish to change then press
ENTER
.
The cursor is positioned at the center of the crosshair and has con-
trol of the VRM, as indicated by four-way arrow, the solid
crosshair and the text
VRM
.
System Depth Unit VRM Distance Unit
Meters meters
Feet feet
Fathoms feet
VRM/EBL
VRM