6-12 DSM250 Digital Sounder Module
2. Use the trackpad to move the cursor and VRM to the desired posi-
tion.
3. Press ENTER to drop the VRM, or CLEAR to abandon the opera-
tion and return the VRM to its previous position.
➤ To switch the VRM off:
Press VRM/EBL. The VRM is switched off.
or
Move the cursor over the VRM, until the text VRM appears, then
press CLEAR.
6.4 Waypoints
The MARKS key lets you to place up to 998 waypoints. A way-
point is a position, normally entered on a chart as a reference, or
as a place to go to. This section provides details that are specific
to placing Waypoints in Sonar mode.
Note: You can only place a waypoint in Sonar mode if you have valid
position data from a GPS.
A waypoint can be placed at the cursor position or at the vessel’s
current position (this is sometimes known as an event mark); all
waypoints placed on the sounder are stored in a waypoint data-
base list with position, depth and temperature when it was placed.
Waypoints placed on the sounder are displayed as a solid vertical
line on the scrolling bottom, Zoom and Bottom Lock displays.
The waypoint number is shown at the top of the vertical line. The
waypoint scrolls to the left with the scrolling bottom display.
If you place a waypoint at the cursor position in Sonar mode and a
chart window is open, the waypoint is displayed on the chart. You
can GOTO, EDIT and ERASE a cursor waypoint.
Note: When in chart mode, if you place a waypoint at the cursor posi-
tion, it is not shown on the display in Sonar mode.
If you place a waypoint at the vessel position in Sonar mode it is
shown in the chart window.
VRM/EBL
VRM
MARKS
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