Side View Frequency (898C Si And 998C Si Only); Imaging Frequency (858C Di And 958C Di Only) - Humminbird 858c Combo Operation Manual

• When set to 83 kHz, the returns from the 83 kHz wide beam will be
displayed in the Sonar View and the Sonar Zoom View. The Split
Sonar View will continue to display returns from both beams in their
respective windows. The RTS Window™ will display the returns from
the 83 kHz wide beam.
45°
800kHz
75°
455kHz
16°
455kHz
25°
200kHz
75 Degree Total Coverage
Sonar Menu Tab
The Down Imaging™ models (858c DI,
958c DI) allow you to choose 200 kHz or 455
kHz for conical sonar coverage in the
traditional sonar views.
• When set to 200 kHz, only the
returns from the 200 kHz (25°) beam
will be displayed in the Down
Imaging™ Views.
• When set to 455 kHz, only the
returns from the 455 kHz (16°)
narrow beam will be displayed in the
Down Imaging™ Views.
Side View Frequency allows you to select which frequency to apply to the
Side Imaging® beams (800 kHz or 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.
455kHz
82
Side View Frequency
(898c SI and 998c SI only)
Settings: 800 kHz or 455 kHz; Default = 455 kHz
Imaging Frequency
(858c DI and 958c DI only)
Settings: 800 kHz, 455 kHz; Default = 455 kHz
45°
800kHz
75°
16°
455kHz
25°
200kHz
75 Degree Total Coverage