Lowrance FishHunter 3D FishHunter Operator Manual - Page 19

Select the depth, Surface Filter Slider/Ice Thickness Slider

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your FishHunter. You can set the depth manually from the side menu. The side menu changes slightly depending on what view you have the sonar in when you open the menu. Select the depth You can manually select the depth you would like to operate in. This will improve the speed in finding bottom. Surface Filter Slider/Ice Thickness Slider Whenever you use a fish finder, you will get what is called surface reverb or surface noise as the sound waves from the transducer reach the surface of the water. The Surface Filter allows you to customize how much of the area on the surface you would like your FishHunter to ignore or include to give you the most accurate fish detection possible. The filter is set to the center position by default each time you turn on the sonar, but as you adjust the slider from left to right a number appears on the right hand side of the slider. This number is the actual amount of the surface that will not be measured by your FishHunter. In very calm conditions, you can set the Surface Filter to a very low number to allow you to search for fish that are located very close to the surface. In more extreme conditions where you have high wind, high waves or when you are trolling your FishHunter behind a boat motor, you will want to turn Up the Surface Filter. Menus and settings | FishHunter 3D/PRO Operator Manual | 19

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Menus and settings |
FishHunter 3D/PRO Operator Manual
your FishHunter. You can set the depth manually from the side
menu. The side menu changes slightly depending on what
view you have the sonar in when you open the menu.
Select the depth
You can manually select the depth you would like to operate
in. This will improve the speed in finding bottom.
Surface Filter Slider/Ice Thickness Slider
Whenever you use a fish finder, you will get what is called
surface reverb or surface noise as the sound waves from the
transducer reach the surface of the water.
The Surface Filter allows you to customize how much of
the area on the surface you would like your FishHunter to
ignore or include to give you the most accurate fish detection
possible.
The filter is set to the center position by default each time
you turn on the sonar, but as you adjust the slider from left to
right a number appears on the right hand side of the slider.
This number is the actual amount of the surface that will not
be measured by your FishHunter. In very calm conditions, you
can set the Surface Filter to a very low number to allow you
to search for fish that are located very close to the surface.
In more extreme conditions where you have high wind, high
waves or when you are trolling your FishHunter behind a boat
motor, you will want to turn Up the Surface Filter.