User's Manual

Furuno Sounders
109
Manual Gain LF: 0% Manual Gain LF: 100%
Interference Rejection
Interferences from other fish finders and electrical equipment can introduce artifacts (or noise) on the
sounder screen. Click on the Sounder Adjustment Ribbon menu and choose between Auto/ Off / high
or Low.
Note : Turn the noise limiter circuit off when no interference exists, otherwise weak echoes may be
missed.