Furuno FE-800, Operator'S Manual

Page: 21 / 60

1. OPERATION
12
1.8 Clutter
Low level noise can cause your display to look “cluttered” with unnecessary dots. These are
caused mainly by dirty water or noise. This kind of noise can be suppressed by adjusting the
clutter.
Note: To manually adjust the clutter, you must first turn [AUTO GAIN] off.
1. Press the MENU/ESC key to open the Main menu.
2. Select [Sounder] using  or  , then press the ENT key.
3. Select the transceiver ([FE-8020 No.1] or [FE-8020 No.2])
as appropriate using  or  , then press the ENT key.
4. Select [Clutter] using  or  , then press the ENT key. This
will open a pop-up window.
5. If using a single transducer configuration, skip to step 7. For
dual transducer configuration go to the next step.
6. Select [AFT] using  or  . The available settings are [0] to
[7].
7. Adjust the Clutter as desired, using  or  , then press the ENT to select [FORE].
8. Adjust [FORE] clutter using  or  , then press the ENT key to apply the settings and close
the pop-up window. The available settings are [0] to [7].
9. Press the MENU/ESC key three times to close the menu.
1.9 Interference
Interference from other acoustic equipment operating nearby or other electronic equipment on
your vessel may show on your display. There are three levels of interference suppression, [IR1],
[IR2] and [IR3]. The higher the number, the greater the degree of suppression. The default setting
is [OFF].
1. Press the MENU/ESC key to open the Main menu.
2. Select [Sounder] using

or

, then press the ENT key.
3. Select the transceiver ([FE-8020 No.1] or [FE-8020 No.2])
as appropriate using

or

, then press the ENT key.
4. Select [IR] using

or

, then press the ENT key. This will
open a pop-up window.
5. Adjust the interference suppression as desired, using

or

, then press the ENT key to apply the settings and close
the pop-up window. The available settings are [IR1], [IR2],
[IR3] and [OFF].
6. Press the MENU/ESC key three times to close the menu.
The FORE/AFT bar is absent in
single transducer configurations.
(0 ~ 7)