Users Manual Part 3

1. OPERATIONAL OVERVIEW
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5. With the left button pressed, drag the cursor over the section of the trail you want
to erase. The section of trail “covered” by the dashed circle is erased.
6. Release the left button.
7. Right-click to deactivate the [TRAIL ERASER] function. The cursor is no longer
highlighted and the dashed circle disappears.
1.37.9 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. Open the menu.
2. Select [1 ECHO].
3. Select [0 NEXT] to show the next menu page.
4. Select [4 TRAILS]. The [TRAIL MENU] appears.
5. Select [7 SUPPRESS AROUND OS].
6. Select [OFF] or [ON] as appropriate.
Note: For IMO-types, when [6 OS TRAIL] is set to [ON], [7 SUPPRESS TRAILS]
is automatically fixed at [ON]. To disable the sea clutter suppression feature,
change [6 OS TRAIL] to [OFF], then change the setting for [7 SUPPRESS
TRAILS].
7. Close the menu.
1.37.10 How to show/hide OS trails
To show or hide the OS trail at any time, follow the procedure below.
1. Open the menu.
2. Select [1 ECHO].
3. Select [0 NEXT] to show the next menu page.
4. Select [4 TRAILS]. The [TRAIL MENU] appears.
5. Select [6 OS TRAIL].
6. Select [OFF] or [ON] as appropriate.
Note: For IMO-types, when [6 OS TRAIL] is set to [ON], [7 SUPPRESS
AROUND OS] is automatically fixed at [ON]. To disable the sea clutter suppres-
sion feature, change [6 OS TRAIL] to [OFF], then change the setting for [7 SUP-
PRESS AROUND OS].
7. Close the menu.