Kongsberg Simrad SN90 Reference Manual page 326

Simrad SN90 Reference Manual
Markers
One or more markers can be placed in the view to identify specific echoes. Markers are
shown as small triangles. Once an echo has been provided with a marker in the display
presentation it is regarded as an object.
You can see the latest marker's course and speed in the view's lower right corner. The
values are calculated based on the last two markers you created and the time between
them.
Each marker is numbered sequentially. Use
marker symbols in the currently active view. This function is located on the
menu.
Objects Visual Objects
The marker is stationary. It has a specified range, bearing and depth related to your own
vessel. If the echo moves in the display presentation the marker will not follow.
The SN90 system automatically copies markers generated in the Horizontal view to
the Vertical view and vice versa.
Note
When target tracking is activated, bearing and tilt are automatically adjusted to follow
the movements of the tracked target.
You can give priority status to one marker to identify the relevant object as the most
important target or position. Bearing and tilt are automatically adjusted to focus on
the priority marker.
Related topics
User interface, page 294
Sonar views, page 316
Horizontal view, page 318
Minute markers / History line
In order to maintain a visual presentation of your vessel's previous movements, you can
draw these with a line. This line is drawn after the vessel symbol in the sonar views, and
visualizes your past movements. We refer to this line as the History Line.
The
Minute Markers
far you have sailed in the last few minutes. The minute markers are shown as small
circles on the vessel's track line.
Tip
To draw the history line use the settings on the
located in the
Display Options
the menu.
Display
324
is located on the
function adds markers to the track line. These markers indicate how
dialog box. The
to control the presentation of the
Markers
menu.
Display
page. The
Own Ship
dialog box is located on
Display Options
Visual
page is
Own Ship
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