Reducing Interference - Furuno GP-7000F Operator's Manual

10.5

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. Push the [ENTER] knob to show the SENSITIVITY window.
2. Rotate the [ENTER] knob to choose NOISE LIMITER and then push the [ENTER]
knob to show the noise limiter window.
3. Rotate the [ENTER] knob to choose the degree of suppression desired (LOW,
MEDIUM, HIGH) or turn the noise limiter off.
4. Push the [ENTER] knob and [MENU] key in order 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
GAIN 50*
NOISE LIMITER
CLUTTER
WHITE MARKER
SIGNAL LEVEL
*: For menu operation, both
of 50 and 200 frequencies appear.
Sensitivity menu
OFF
LOW
MEDIUM
HIGH
Noise limiter window
10. VIDEO SOUNDER OPERATION
Electrical interference
000
HIGH
0
OFF
OFF
10-13