Humminbird 698ci HD SI Combo, Руководство по эксплуатации

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37 What’s on the Down Imaging® Display
either device is connected to the Fishfinder. If both devices are connected, then only
area directly below your boat. The razor-thin, high-definition profiling beams
reveals a variety of recognizable features so that you can interpret the structure
Lower Range
Upper Range
Clouded Area may indicate a bait ball and
White Streaks may indicate fish.
Topography Changes - The light part of the
display shows where the beam is hitting hard
bottom or rising terrain. The dark part of the
display indicates soft bottom (sand, mud) or
descending terrain.
Shadows -Result from a lack of reflected sonar
from a particular area and can be as valuable
for interpretation than the sonar reflected by
the object itself. Use shadows to help 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.