1. OPERATIONAL OVERVIEW
1-80
1.43 How to Use Marks
1.43.1 Heading line mark
The heading line is a line from the own ship position to the outer edge of the radar dis-
play area and appears at zero degrees on the bearing scale in HEAD UP mode. The
orientation of the line changes depending on the ship orientation in NORTH UP and
True Motion modes.
How to hide the heading line temporarily
To temporarily extinguish the heading line to look at targets existing dead ahead of
own ship, press and hold the HL OFF key, or place the cursor on the [HL OFF] box in
the InstantAccess bar
™
then left-click and hold.
In addition to the heading line, the stern marker and all graphics within the operational
display area are also erased. To redisplay the heading line, etc., release the key or the
left button.
1.43.2 How to hide/show the stern mark
The stern marker, which is a dotted line, appears opposite to the heading line.
To display or erase this marker do the following:
1. Open the menu.
2. Select [2 MARKS].
For A/B/W-types with Radar Plotter functionality, select [2 MARKS•CHART].
3. Select [3 STERN MARK].
4. Select [ON] or [OFF] as appropriate.
5. Close the menu.
Stern line
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