Humminbird 700 SERIES 798CI - Manual (Page 16)

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QuadraBeam PLUS™ Sonar
(with optional-purchase QuadraBeam PLUS™
transducer)
Your 700 Series™ Fishing System also
supports QuadraBeam PLUS™ sonar with
the purchase of an additional QuadraBeam
PLUS™ transducer. QuadraBeam PLUS™
sonar provides an extremely wide 90° area
of coverage. QuadraBeam PLUS™ starts
with two fan-shaped 35° 455 kHz Side
Structure locating sonar beams to spot fish,
bait, and structure to the left and right of
the boat over an area of the bottom that’s
always equal to twice your depth. For a
detailed view below the boat, QuadraBeam
PLUS™ uses DualBeam PLUS™ technology,
with precision 20° and wide 60° beams.
QuadraBeam PLUS™ finds more fish faster
and can even tell you where to put your bait
by showing if fish are to the left, right, or
directly beneath your boat.
90° Total Coverage
Bottom Coverage = 2 x Depth
35° 60° 20° 35°
455 kHz 455 kHz
83 kHz
200 kHz
How Sonar Works