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Fishnder 90/140 Owner’s Manual 17
Operating Your Fishnder
Graphs
Fish ID—sets how the Fishnder shows underwater
targets and background information. If you select a
sh symbol, the screen shows only the information
related to that symbol (large, medium, and small sizes).
When using wide beam, sh symbols that are to the
sides of the boat appear hollow. Those that are directly
below the boat appear as solid black sh symbols.
(default) the Fishnder does not interpret the sonar
return data. Fish appear as arches
Suspended targets appear as symbols. No background
information appears
Same as previous with the target depth shown.
Suspended targets appear as symbols. Background
information appears, making the distinction between
sh and structure easier.
Same as previous with target depth shown.
Beam—controls the angle of the transducer beam. Wide
beam allows you to see more sh in shallow water, even off
the sides of the boat. You can also choose Narrow (default)
beam.
Whiteline—sets how the Fishnder shows information
about the bottom type.
Off—the bottom return appears as solid black.
Whiteline Off
Whiteline On
On (default)—the bottom return appears as a grayscale
pattern and can help to determine bottom hardness.
A hard bottom displays a thicker bottom layer. A soft
bottom appears as a thinner bottom layer.
190-00582-10_0A.indd 17 12/2/2011 3:08:59 PM
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