4-6 DSM250 Digital Sounder Module
Bearing Mode
The mode (magnetic or true) of all the bearing and heading data
displayed. This is indicated in the radar status bar after the head-
ing value, if displayed.
Cursor Reference
The mode of the bearing data displayed for the cursor readout.
The bearing information can be displayed in either of two forms:
• Relative: The bearing relative to your vessel’s heading.
• Mag/True: The actual bearing in either degrees magnetic or
degrees true. This option is only available in Radar mode if your
system includes a radar display and you have heading data from a
compass.
If you choose this mode, the selection you made for the previous
parameter (Bearing Mode), °M or °T, is displayed in the cursor
(Rng/Brg) data boxes. The current units are shown for the heading
value in the status bar at the top of the screen.
Cursor Readout
This option controls whether radar cursor data is shown in latitude
and longitude or in range and bearing. Alternatively, you can
show both types of readout, in separate boxes, or turn the cursor
data box off.
You can also turn the cursor readout box(es) on and off during
normal operation, via the SCREEN default soft key.
Day/Night
This option enables you to change the display between day and
night modes.
On a color LCD, NIGHT mode uses a different color palette, more
suited to night time viewing. The default setting is DAY.
For monochrome displays, the normal DAY presentation displays
black targets on a white background. If you select NIGHT, the pic-
ture is reversed, so that white targets are shown on a black back-
ground to reduce the intensity of the image.
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