Humminbird 409380-1 Marine GPS System User Manual


 
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What’s on the Side Imaging® Display
Side Imaging® displays a number of easily recognizable features that allow for
bottom composition determines the intensity of the sonar return. For example,
of their relative density. Upward slopes that face the transducer reflect sonar
number of easily recognizable features on the Side Imaging® display that allow
following items:
What’s on the Side Imaging® Display
Depth - Water depth can be set to alarm when
the water becomes too shallow.
Clouded Area may indicate a bait ball and
White Streaks may indicate fish.
Boat Icon & Top of the Display - Information
from the side beams are displayed at the top
of the screen. As new information is received,
the historical data scrolls down the screen.
Bottom Return
The water column shows the relative depth
of the water under the boat at a given time.
Variations in the width of the water column
show variations in the distance to the bottom
as the boat passes over.