Humminbird ICE 35 - Manual (Page 7)

Your ICE Flasher Series™ Fishfinder uses
selectable dual-frequency sonar with a wide
area of coverage. Selectable dual-frequency
gives you the option of two beams, and both
beams will cover the bottom and provide high
definition. The 9 degree center beam provides
the highest definition, while the 19 degree beam
provides wider coverage. Depth capability is
affected by such factors as bottom hardness,
water conditions, and transducer installation.
Whether fishing in shallow to very deep water,
in both fresh and salt water, selectable
dual-frequency is ideal for a variety of conditions.
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