Noise And Interference Settings; Sonar Screen Appearance - Garmin GPSMAP 6008 Owner's Manual

Sonar

Noise and Interference Settings

The noise rejection settings allow you to reduce the interference and the amount of clutter shown on the
sonar screen. With the GSD 24 and GSD 26, you can adjust the noise rejection settings for each frequency
independently.
Showing Surface Noise
You can set whether the returns near the surface of the water appear on the sonar screen. Hide surface noise to
help reduce clutter.
1. From the Home screen, select Sonar.
2. Select a sonar view.
3. Select Menu.
4. Select an option:
• For the GSD 22, select
• For the GSD 24/26, select
Surface Noise
5. Select
Adjusting the Noise Rejection
Note: This feature is available only on the GSD 22.
If you have manually increased or decreased the gain setting
weak sonar returns by increasing the noise rejection.
1. From the Home screen, select Sonar.
2. Select a sonar view.
Menu Noise
3. Select >
4. Select Up or Down.
Minimizing Interference
Note: These features are available only on the GSD 24 and GSD 26.
1. From the Home screen, select Sonar.
2. Select a sonar view.
Menu More
3. Select >
4. Select one or more options:
• Select Interference
• Select Color Limit
• Select Smoothing

Sonar Screen Appearance

Showing and Configuring a Depth Line
You can set whether a quick-reference depth line appears on the sonar screen.
1. From the Home screen, select Sonar.
2. Select a sonar view.
Menu.
3. Select
4. Select an option:
• For the GSD 22, select
• For the GSD 24/26, select
5. Select Depth Line > Show.
6. Set the depth of the reference line:
• For the GPSMAP 6000 series, use the Rocker.
• For the GPSMAP 7000 series, touch and drag the line.
104
Sonar Setup.
More Noise Reject.
>
> Show.
Reject.
Noise Reject.
>
to reduce the effects of crosstalk and electrical interference.
to hide part of the color palette to help eliminate fields of weak clutter.
to make the sonar screen appear more consistent in deeper water.
Sonar Setup.
More > Appearance.
(page 101), you can minimize the appearance of
GPSMAP 6000/7000 Series Owner's Manual
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