Furuno MFD12 User Manual

7. Fish Finder
7-9
7.4.4 How to Adjust the Gain
The gain controls how echoes of different strengths are displayed. Set the gain to
show a slight amount of noise on the screen. Increase the gain for greater depths and
lower then gain for shallow waters.
Press the GAIN/TX key to show the gain window. Gain HF is selected. Rotate the Ro-
toKey to adjust the gain then push the key to set. The current level is shown on the
bar, and the setting range is 0-100(%). To adjust the low frequency, push the key
again to select Gain LF then use the RotoKey to adjust.
Note: For the FCV-1150, this function is inoperative when thefts-1150’s NavNet menu
is set for Gain/Mode.
7.4.5 How to Reduce Clutter
Low intensity “spots” of noise appear over most of screen like in the illustration shown
below. These spots of noise are caused by sediment in the water or noise. You can
reduce this type of noise with Clutter on the [Fish Finder] menu.
1. Press the MENU key to open the menu.
2. Open the [Fish Finder-DFF/FCV] (or [ETR]) menu.
3. Use the RotoKey to select [Clutter].
4. Rotate the RotoKey to adjust the clutter percentage level then push the RotoKey
knob.
5. Press the MENU key to close the menu.
Gain too high Gain proper Gain too low
Clutter

Furuno MFD12 Specifications

General

Brand	Furuno
Model	MFD12
Category	Monitor
Language	English