Lowrance electronic X96 - Manual (Page 58)

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The figures above show how different Grayline settings can reveal
more information. Figures, 1A, 2A and 3A show locations with Grayline
set to the default level, 64 percent. Figures 1B, 2B and 3B show the
same locations with Grayline increased to 84 percent. In Figure 1B, no
fish are near the left structure, but the structure on the right shows
fish holding next to it. Notice in figures 2B and 3B how Grayline
displays a hard, rocky bottom (the drop-offs) with a wider gray line.
The muddier bottom below drop-offs appears as a narrow gray line.
Grayline
Muddy
bottom
Hard
bottom
Muddy
bottom
Fish near
structure
Hard
bottom
Hard
structure
Grayline
Grayline
Fig. 2A
Fig. 3A
Fig. 2B
Fig. 3B
Fig. 1A Fig. 1B