Humminbird 531427-1_D Marine GPS System User Manual


 
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The sonar information from the side-looking beams reveals bottom contour, structure and fish
similar to the down-looking beam, but the area covered is to the left and right of the area shown
in the down-looking portion, so you actually see more of the bottom. The distance covered by the
right and left 90° beams is based on the depth setting for the down-looking beam, up to a
maximum of 160 feet.
Side Beam View
Depth
Temperature
Left Side 455 kHz
Sonar History
Window
Right Side 455 kHz
Sonar History
Window
200 kHz Sonar
History Window
Water Surface Line for 455 kHz
Sonar History Windows