Lowrance LMS-520C Installation And Operation Instructions Manual page 85

Sonar Features menu with Fish I.D. Symbols selected on dual-
frequency menu (left); single-frequency menu (right). When the check
box to the left is checked, the feature is on.
Fig. 1 A
Fig. 1 B
Many fish Fewer fish
arches visible symbols visible
Fig. 2 A
Fig. 2 B
Fish arches
No fish shown
above structure
FasTrack graph
confirms fish
Figures 1A and 2A show Sonar Page in normal chart mode (left). Figures
1B and 2B (right) show the same underwater scene with Fish I.D. turned
on. Note how arches are replaced with symbols.
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