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2. RADAR OPERATION
2-16
2.12 Erasing the Heading Line, North Marker
The heading line indicates the ship's heading in all presentation modes. It is a
line from the own ship position to the outer edge of the radar display area and
appears at zero degrees on the bearing scale in head-up mode; it changes its
orientation in the north-up, course-up and true motion modes with ship’s
movement.
The north marker appears as a short dashed line. In the head-up and course-up
modes the north marker moves around the bearing scale as the ship’s heading
moves.
To temporarily erase the heading line and north marker, press the B:RADAR
DISPLY soft key followed by the D: HL OFF soft key. Release the key to
redisplay the markers. (If the radar soft keys are not shown, hit the
[HIDE/SHOW] key to display them.)
2.13 Reducing Noise Interference
Noise, appearing on the displays as random “speckles,” can be reduced as
follows:
1. Press the [MENU] key to open the menu.
2. Press the A:RADAR DISPLAY SETUP soft key.
3. Select NOISE REJECTION, then press the A:EDIT soft key.
4. Select OFF, LOW or HIGH as appropriate.
5. Press the C:ENTER soft key.
6. Press the [MENU] key to close the menu.
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