1. OPERATIONAL OVERVIEW
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1.36.9 How to prevent sea clutter in true trails
You can prevent the display of sea clutter in true trails about your ship to clear the ra-
dar picture. Your ship's trails can also be shown or hidden.
1. Select the [TRAIL] box at the bottom-right corner of the screen, then press the
right button to display the [TRAIL MENU].
2. Select [OS TRAIL], then push the ADJUST knob.
3. Select [OFF], [1] or [2] as appropriate, then push the ADJUST knob.
4. Close the menu.
1.36.10 How to show/hide land trails (Non-IMO only)
You can improve the on-screen display visibility by hiding trails generated by land-
masses and non-moving objects. Hiding the trails has the following possible benefits:
• Land-masses have no trail, allowing you to use relative trails near coastlines.
• Only moving echoes create a trail, improving target identification.
1. Select the [TRAIL] box at the bottom-right corner of the screen, then press the
right button to display the [TRAIL MENU].
2. Select [HIDE LAND TRAILS(T)] or [HIDE LAND TRAILS(R)] as appropriate, then
push the ADJUST knob.
3. Referring to the table below, select the appropriate setting, then push the AD-
JUST knob.
4. Close the menu.
Note: When option [1] or [2] is selected trails for echoes outside the displayed area
are not generated. It is important to note that, where the displayed area is moved by
functions such as off-centering or true motion, newly displayed echoes do not have
trails.
Option Show own ship’s trail Prevent sea clutter in true trails
[OFF] No No
[1] Yes Yes
[2] No Yes
Setting
Trails for non-moving objects
Trails for moving objects
Large objects Small objects
[OFF] Trails are shown Trails are shown Trails are shown
[1] Trails are hidden Trails are shown Trails are shown
[2] Trails are hidden Trails are hidden Trails are shown
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