Humminbird ICE 35 - Manual (Page 30)

BEAM
Beam allows you to switch the frequency of your sonar beam. The Beam
function allows you to eliminate cross-talk interference from neighboring
fishfinders or to simply choose the type of beam that suits your fishing needs.
Selecting 240 kHz will provide a wider beam with more coverage but less detail, while
selecting 455 kHz will provide a narrower beam with more resolution.
NOTE: Your other option is to use the Noise key to reduce cross-talk interference (see
Noise Rejection for more information).
1. Press the Beam key to toggle between 240 kHz and 455 kHz.
ICE 35
The active frequency is displayed
as a narrow or wide blue line
at the top of the Flasher Dial.
(455 kHz or 240 kHz, where Narrow
= 455 kHz, and Wide = 240 kHz;
Default = Wide)
ICE 45/55
The active frequency is shown as
a narrow or wide beam on the Active
Display. (455 kHz or 240 kHz, where
Narrow beam = 455 kHz, and Wide
beam = 240 kHz; Default = Wide)
Wide Beam (240 kHz)
Wide Beam (240 kHz)
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