Yachting Naki 800C, Installation And Operation Instructions Manual

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Understanding sonar
If you are familiar with how sonar works, skip ahead to the next segment. But, if you
have never owned sonar Fishfinder before, this segment will tell you the basic work-
ing theory about sonar.
Based on the sonar technology, the
Fishfinder could detect the underwater
condition, including fish, structure,
or bottom. After you finished the
installation of transducer and sonar
unit, connect the sonar unit to the
transducer. The transducer sends a
sound wave signal into the water in a
cone shape. At the source, the wave
is narrow; however as it penetrates
deeper, the sound wave spreads
forming a cone (think flashlight).
The sound wave bounce back to the t
ransducer when it strikes any object,
the object could be fish, structure,
bottom or any other object with density
being different from the water.
The transducer amplifies the return signal and sends it back to the Fishfinder.
By measuring the time between the transmission of the sound wave and when the
sound wave bounce back, the Fishfinder could calculate the distance by the inner
microprocessor. Then the Fishfinder display the information on the screen for you
to interpret.
1
How sonar works