How A Fish Finder Works
Fish finders use Sonar to locate objects, preferably fish, underwater. Sonar is an abbreviation for “SOund, NAvigation, and Ranging”.
Sonar consists of 4 parts:
- Transmitter
- Transducer
- Receiver
- Display
Sonar works by sending an electrical impulse from the transmitter, converting it into a sound wave by the transducer and then sending that sound wave into the water. When the wave strikes an object it rebounds off the object sending this echo back to the transducer. The transducer than converts the echo back into an electrical signal. The receiver amplifies this signal and sends it to the display for the fisherman to see. Now the fisherman knows where to drop a line.
