Furuno FCV-1100L - Manual (Page 29)

1. OPERATIONAL OVERVIEW
1-21
1.16 Suppressing Interference
Interference from other acoustic equipment operating nearby or other electronic
equipment on your boat may show itself on the display as shown in the figure
below. You may suppress these types of interference with the noise limiter.
Interference from
other sounder Electrical interference
Interference
1. Rotate the [FUNCTION] switch to choose NL.
1. Shift frequencies to
reject interference.
2. Use LF/HF·NOISE LIM
in case interference
hasn't been rejected.
[-/+]: Change setting
[EXIT]: Exit
NOISE LIMITER
The inverted solid
triangle shifts with
operation of [-] or
[+] key.
-10 +10 0
-10 +10 0
HF·FREQ ADJ : +0.0%
HF·NOISE LIM : OFF
LF·FREQ ADJ : +0.0%
LF·NOISE LIM : OFF
NL menu
• For the dual display: Go to step 2.
• For other modes : Go to step 3.
2. Press the [▲] or [▼] key to choose HF • FREQ ADJ or LF • FREQ ADJ,
whichever is appropriate.