Humminbird 596C HD DI - Manual (Page 14)

Down Imaging™ Sonar
(Down Imaging™ models only
[596c HD DI, XNT 9-DI-T Transducer])
Your 596c HD DI Fishfinder uses Down
Imaging™
technology. The Down
Imaging™ transducer scans the water with
razor-thin, high-definition beams. The
beams are wide (side to side) but very thin
front to back.
The Down Imaging™ beams can be
operated at two frequencies: 455 kHz (75°)
or 800 kHz (45°). Select 455 kHz for the
best overall image quality and depth.
Select 800 kHz for the sharpest image. See
Down Imaging™
X-Press™ Menu:
Imaging Frequency for more information.
The transducer also uses conical beams to
provide data in traditional 2D format (see
What’s on the Sonar View). Select 455 kHz for
a narrowly focused 16° center beam, or select
200 kHz for a wider 25° beam (see Sonar
Menu Tab: Beam Select).
Depth capability is affected by such factors
as boat speed, wave action, bottom hardness,
water conditions and transducer installation.
75 Degree Total Coverage
16°
75°
25°
455kHz
200kHz
455kHz
45° 800kHz
5 How Sonar Works