21
Operation
Understand 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
working 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
transducer 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.
