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(Down Imaging™ models only [587ci HD DI, 597ci HD DI])
information about the area directly below your boat. The razor-thin, high-
display. Down Imaging™ reveals a variety of recognizable features so that you
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What’s on the Down Imaging™ Display
either device is connected to the 500 Series™ Fishfinder. If both devices are connected,
Upper Range
Shadows-Resultfrom alack of reflectedsonar
from a particular area and can be as valuable
for interpretation than the sonar reflected by
the object itself.Use shadows tohelp you see
the image in 3 dimensions, oriented in space.
You can gain insight into the actual shape of
an object, or the depth to which it has sunk
into the bottom, through shadows on the
display. Objects standing on the bottom cast
a sonar shadow. The longer the shadow, the
taller the object. Fish also cast shadows. You
can use the shadow to interpret how close
the fish is to the bottom.
Clouded Area may indicate a bait ball and
White Streaks may indicate fish.
Lower Range
Structure