Humminbird Matrix 97, Operation Manual

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8
Understanding Sonar History
It is important to understand the significance of the Matrix Fishing System display. The display does
NOT show a literal 3-dimensional representation of what is under the water. Each vertical band of data
received by the control head and plotted on the display represents something that was detected by a
sonar return at a particular time. As both the boat and the targets (fish) may be moving, the returns
are only showing a particular segment of time when objects were detected, not exactly where those
objects are in relation to other objects shown on the display.
Real Time Sonar (RTS®) Window
A Real Time Sonar (RTS®) Window appears on the right side of the display in the Sonar View only. The
RTS® Window always updates at the fastest rate possible for depth conditions and shows only the
returns from the bottom, structure and fish that are within the transducer beam. The RTS® Window
plots the depth and intensity of a sonar return.
(See Sonar Menu: RTS ® Window) .
The Narrow RTS® Window
indicates the sonar intensity
through the use of colors. Red
indicates a strong return and
blue indicates a weak return.
The depth of the sonar return
is indicated by the vertical
placement of the return on
the display depth scale.
The Wide RTS® Window in-
dicates the sonar intensity
through the use of a bar
graph. The length of the
plotted return provides an
indication of whether the
return is weak or strong. The
depth of the sonar return is
indicated by the vertical
placement of the return on
the display depth scale.