7. Fish Finder
7-5
Bottom-zoom display
The bottom-zoom display expands the bottom and the fish near the bottom according
to the zoom range selected on the [Fish Finder] menu. This display helps you find the
density of the bottom. A bottom displayed with a short echo tail normally indicates the
bottom is soft (sand bottom, etc.). A long echo tail indicates a hard bottom.
Bottom-lock display
The bottom-lock display provides a compressed normal picture on the right half and a
7 to 400 feet (3 to 120 meter) wide layer in contact with the bottom is expanded on the
left half. This display helps you separate the fish near the bottom from the bottom
echo. You can select the bottom lock range with Bottom Lock Range Span in the [Fish
Finder-DFF/FCV] (or [ETR]) menu.
Zoom marker
Zoom marker automatically follows
change in depth.
Single freq. displayBottom zoom display
Bottom
45.2
ft
20
40
60
0
0.0
40
50
60
Bottom shown as a straight line
*This area zoomed and displayed on left
1/2 of screen.
Zoom marker
Fish
school
0.0
45.4
ft
Single freq. displayBottom-lock display
*
20
40
60
0
15
10
5
Zoomed
fish school
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