Humminbird 798ci Cable Box User Manual


 
the 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
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What’s on the Down ImagingDisplay
Upper Range
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.
Clouded Area may indicate a bait ball and
White Streaks may indicate fish.
device is connected to the 700 Series™ Fishing System. If both devices are connected, then
Lower Range
Structure