Sonar Appearance Settings
From a sonar view, select Menu > Sonar Setup > Appearance.
Color Scheme: Sets the color scheme.
Color Gain: Adjusts the intensity of colors (
Adjusting the Color Intensity, page 75
).
A-Scope: Displays a vertical flasher along the right side of the screen that shows instantaneously the range to
targets along a scale.
Depth Line: Shows a quick-reference depth line.
Edge: Highlights the strongest signal from the bottom to help define the hardness or softness of the signal.
Fish Symbols: Sets how the sonar interprets suspended targets.
Shows suspended targets as symbols and background sonar information.
Shows suspended targets as symbols with target depth information and background sonar informa
tion.
Shows suspended targets as symbols.
Shows suspended targets as symbols with target depth information.
Pic. Advance: Allows the sonar picture to advance faster by drawing more than one column of data on the
screen for each column of sounder data received. This is especially helpful when you are using the sounder
in deep water, because the sonar signal takes longer to travel to the water bottom and back to the
transducer.
The 1/1 setting draws one column of information on the screen per sounder return. The 2/1 setting draws
two columns of information on the screen per sounder return, and so on for the 4/1 and 8/1 settings.
Echo Stretch: Adjusts the size of the echoes on the screen to make it easier to see separate returns on the
screen.
When targets are difficult to see , echo stretch makes the target returns more pronounced and easier to
see on the screen. If the echo stretch value is too high, the targets blend together. If the value is too low ,
the targets are small and more difficult to see.
You can use echo stretch and filter width together to obtain the preferable resolution and noise reduction.
With echo stretch and filter width set to low, the display has the highest resolution, but is the most
susceptible to noise. With echo stretch set to high and filter width set to low, the display has a lower
resolution, but has wider targets. With echo stretch and filter width set to high, the display has the lowest
resolution, but is the least susceptible to noise. It is not recommended to set echo stretch to low and filter
width to high.
Sonar Fishfinder
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