Imaging frequency – Humminbird 561 User Manual
Page 58
51
Imaging Frequency
(Down Imaging™ Views only [570 DI])
Settings: 800 kHz or 455 kHz; Default = 455 kHz
Imaging Frequency allows you to select which frequency to apply to the Down
Imaging™ beams (455 kHz or 800 kHz). For the best overall image quality and
depth, select 455 kHz. For the sharpest image (but limited depth capability),
select 800 kHz.
75 Degree Total Coverage
16°
25°
455kHz
200kHz
75°
455kHz
45°
800kHz
Sonar Menu Tab
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