Reducing Interference - Furuno 1823C Operator's Manual

4.6

Reducing Interference

Interference from other acoustic equipment operating nearby or other electronic
equipment on your boat may show itself on the display as shown below.
To reduce interference, do the following:
1. Press the [MENU] key.
2. Press the SOUNDER MENU soft key.
3. Select NOISE LIMITER, then press the EDIT soft key to show the noise
limiter window.
4. Use the trackball to select the degree of suppression desired (LOW,
MEDIUM, HIGH), or turn the noise limiter off.
5. Press the RETURN soft key followed by the [MENU] key to close the menu.
Turn the noise limiter circuit off when no interference exists, otherwise weak
echoes may be missed.
Interference from
other sounder
Types of interference
NOISE LIMITER
¤
OFF
¡
LOW
¡
MEDIUM
¡
HIGH
Noise limiter window
4. VIDEO SOUNDER OPERATION
Electrical inteference
4-13