Erasing Weak Echoes; Rejecting Clutter - Furuno FCV-1150 Operator's Manual

1. OPERATION
1. Press the MENU/ESC key to open the
menu.
2. Use or to select Sounder and press
the ENTER key.
3. Use or to select Interference and
press the ENTER key.
4. Use or to turn the interference rejec-
tor on or off and press the ENTER key.
Off: Turn off the interference rejector.
Low, Medium, High: High provides the
greatest degree of suppression and Low
provides the weakest.
Auto: Automatically reject interference.
5. Press the MENU/ESC key twice to close
the window.
IMPORTANT
Turn off the interference rejector when no
interference exists, so as not to miss small
echoes.
1.12 Erasing Weak Ech-
oes
Sediment in the water or reflections from
plankton may be painted on the display in low
intensity tones, as shown in the illustration be-
low. You can remove these unwanted echoes
with the Color Erase feature.
1. Press the MENU/ESC key to open the
menu.
2. Use
3. Use
4. Use
5. Press the MENU/ESC key twice to close
1.13
Low intensity "speckles" may appear over
most of screen. This is mainly due to sedi-
ment in the water or noise. These unwanted
echoes can be rejected, when using the man-
ual mode, by adjusting Clutter on the menu.
Clutter is automatically adjusted in the auto
gain mode.
1. Press the MENU/ESC key to open the
2. Use
Weak
echoes
10
or to select Sounder and press
the ENTER key.
or to select Color Erase and
press the ENTER key.
or to select the color to erase
and press the ENTER key. The setting
range is 0 to 50(%), in intervals of 5(%).
The larger the setting value, the greater
the number of colors that are erased.
the menu.

Rejecting Clutter

menu.
or to select Sounder and press
the ENTER key.