Down Imaging® Sonar (1159Ci Hd Di Only); Xtreme Depth Sonar (Xtreme Depth Series™ Models Only [1159Ci Hd Xd]) - Humminbird 1100 Series Operation Manual

45°
455kHz
455kHz
28°
200kHz
75 Degree Total Coverage
Bottom Coverage = 1 x Depth
Introduction
800kHz
75°
16°
Down Imaging® Sonar
(1159ci HD DI only)
Your 1159ci HD DI Fishing System 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
Sonar Menu Tab: Imaging Frequency for more
information.
The transducer also uses conical beams to provide
data in traditional 2D format (see What's on the
Sonar Display). Select 455 kHz for a narrowly focused
16° center beam, or select 200 kHz for a wider 28°
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.
Xtreme Depth Sonar
(Xtreme Depth Series™ models only [1159ci HD XD])
The 1159ci HD XD Combo Fishing System uses
the XD transducer to provide extreme depth
coverage with DualBeam PLUS™ technology.
The Xtreme Depth sonar beams can be operated at
two frequencies: 50 kHz (74°) and 200 kHz (20°).
The wide, 50 kHz beam transmits at a low
frequency to provide greater depth coverage, up to
3280 ft (1000 m). The narrow, 200 kHz center beam
transmits at a high frequency to provide maximum
detail at shallower depths.
The DualBeam PLUS™ technology allows you to
view the sonar returns blended together,
separately, or side-by-side (see Sonar Menu Tab:
Beam Select and Views for more information).
Depth capability is affected by such factors as boat
speed, wave action, bottom hardness, water
conditions, and transducer installation.
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