High Definition Side Imaging Sonar
(1197c SI Combo models only)
Your 1100 Series™ 1197c SI Combo uses Side Imaging sonar to provide a wide yet precise survey of a large
area of water, including detailed bottom topography and fish-attracting structure orientation. The Side
Imaging transducer returns are processed into an image similar to an aerial photograph.
Typically, the Side Imaging sonar can search an area that is 720 feet wide (360 to each side), with a
typical depth performance of 150 feet when the Side Imaging Sonar frequency is set for 455 kHz. The
side beams can be operated at one of two frequencies: 455 kHz or 800 kHz. Selecting 800 kHz produces
the sharpest image but the search area to each side and the depth capability are limited as compared
to the 455 kHz frequency. See
What’s on the Side Imaging Display
and
Understanding Side Imaging
for more information.
DualBeam PLUS™ Sonar
Your 1100 Series™ Fishing System uses a 200/83 kHz DualBeam
PLUS™ sonar system with a wide (60°) area of coverage. DualBeam
PLUS™ sonar has a narrowly focused 20° center beam, surrounded
by a second beam of 60°, expanding your coverage to an area equal
to your depth. In 20 feet of water, the wider beam covers an area
20 feet wide. DualBeam PLUS™ sonar returns can be blended
together, viewed separately or compared side-by-side. DualBeam
PLUS™ is ideal for a wide range of conditions - from shallow to very
deep water in both fresh and salt water. Depth capability is affected
by such factors as boat speed, wave action, bottom hardness, water
conditions and transducer installation.
60°
83kHz
20°
200kHz
86°
455kHz
86°
455kHz
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