How To Erase/Restart Trails; How To Prevent Sea Clutter In True Trails - Furuno FAR-2218-BB Operator's Manual

1.37.8

How to erase/restart trails

All trails can be erased (including those in the memory) and restarted to start fresh
trails. There are three methods you can use to erase trails.
To erase all trails displayed in the operational display area:
• Select the [TRAIL] box, then press and hold the left button on the trackball; or
• Press and hold CANCEL TRAILS key.
To erase a section of a trail (B-types only):
1. Place the cursor inside the operational display area, then right-click to show the
[CURSOR] menu.
2. Select [TRAIL ERASER]. The cursor is now displayed with a red surround and a
dashed circle, indicating that [TRAIL ERASER] mode is active.
3. Press the left button to change the diameter of the dashed circle, as shown in the
figure below.
4. Place the cursor on the trail whose section you want to erase, then press and hold
the left button.
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. Select the [TRAIL] box at the bottom-right corner of the screen, then right-click to
display the [TRAIL MENU].
2. Select [7 SUPPRESS AROUND OS].
3. Select [OFF] or [ON] as appropriate.
Note: 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].
4. Close the menu.
1. OPERATIONAL OVERVIEW
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