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4. VIDEO SOUNDER OPERATION
4-12
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.
Interference from Electrical inteference
other sounder
Types of interference
To reduce interference, do the following:
1. Press the [MENU] key.
2. Press the SOUNDER MENU soft key.
3. Select NOISE LIMITER and press the EDIT soft key to show the noise limiter
window.
NOISE LIMITER
▲
OFF
LOW
MEDIUM
HIGH
▼
Noise limiter window
4. Use the cursor pad
to select 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 function off when no interference exists, otherwise weak
echoes may be missed.