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DualBeam Sonar
Your 500 Series™ Fishfinder uses a 200/83 kHz
DualBeam sonar system with a wide (60°) area
of coverage. DualBeam sonar is optimized to
show the greatest bottom definition using a
narrow (20°) beam yet can still indicate fish
found in the wide (60°) beam when the
Fish ID+™ feature is turned on. DualBeam is
ideal for a wide range of conditions - from
shallow to very deep water in both fresh and
salt water. Depth capability is affected by such
factors as boat speed, wave action, bottom
hardness, water conditions, and transducer
installation.
How Sonar Works