How To Get High Sensitivity; How To Suppress False Echoes - Furuno FAR-2218 Operator's Manual

1.25.3

How to get high sensitivity

When the ACE function is [ON], the high sensitivity mode is also available. This re-
quires a function key to be assigned with the [ACE HIGH SENSITIVITY] function (see
section 1.9).
To use high sensitivity mode, activate the ACE feature, then press the assigned func-
tion key.
You can select the level for the high sensitivity mode as follows:
1. Open the menu.
2. Select [1 ECHO].
3. Select [0 NEXT].
4. Select [2 ACE]. The [ACE] menu appears.
5. Select [2 SIGNAL ENHANCEMENT].
6. Select the level from [1], [2] or [3].
7. Close the menu.
1.25.4

How to suppress false echoes

When the ACE function is [ON], the echo signals can appear on the screen at posi-
tions where there is no target or disappear when there are targets (see section 2.2).
You can suppress these false echoes.
Note: This procedure is only available when the Automatic Clutter Elimination (ACE)
function is [ON].
1. Open the menu.
2. Select [1 ECHO].
3. Select [0 NEXT].
4. Select [2 ACE].
5. Select [3 SUPPRESS SECTOR].
6. Spin the scrollwheel, or use the number keys, to set the start angle for sector sup-
pression.
If you use the number keys, the cursor moves from left to right. When all three dig-
its are input, the cursor moves to the [ANGLE] item.
If you use the scrollwheel, left-click when the start angle is set.
To cancel any changes, press the CANCEL TRAILS key.
7. Left-click, or press the ENTER MARK key to confirm the start angle. The cursor
moves to the [ANGLE] item.
8. Spin the scrollwheel, or use the number keys, set the angle range of the sector to
be suppressed.
If you use the number keys, the cursor moves from left to right. When all three dig-
its are input, the setting process is complete.
If you use the scrollwheel, left-click when the angle range is set.
To cancel any changes, press the CANCEL TRAILS key.
9. Close the menu.
1. OPERATIONAL OVERVIEW
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