Eliminating Weak Echoes - Furuno FCV-1200L Operator's Manual

1.12

Eliminating Weak Echoes

Dirty water or reflections from plankton may be painted on the display in green or light-blue.
These weak echoes may be erased with the signal level function.
1. Rotate the [FUNCTION] switch to select SIG LEVEL.
The SIGNAL LEVEL menu appears.
2. Press the [-] or [+] key to select the setting desired.
Every pressing of the [+] key deletes echoes from weakest to strongest in ascending order.
For eight colors, the setting window shows OFF, 1 to 4.
3. Rotate the [FUNCTION] switch fully counterclockwise to select EXIT.
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SIGNAL LEVEL
SIGNAL LEV : OFF
OFF current
Eliminate low
intensity echoes.
[-/+]: Change setting
[EXIT (knob)]: Exit
Signal level menu
OFF 1 2 3
Signal level setting window (For 16 colors)
Echo colors
disappear from
weakest to
strongest.
4 5 6 7 8 9