Humminbird 700 SERIES 798CI - Manual (Page 15)

3
Side Imaging
®
Sonar
Your 700 Series™ Fishing System 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 searches an area that
is 240 feet wide to each side, 480 feet
total side coverage, with a depth
limitation of 150 feet. See What’s on
the Side Imaging® Display for more
information.
DualBeam PLUS™ Sonar
Your 700 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.
How Sonar Works