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Before you can choose which fishfinder is the very best one for you, you should be aware of the way the fishfinder perfo

Fishfinders utilize sonar technologies to find fish-or any other good object-under the surface of the water. Sonar sound waves move through the water. The further the sound waves traveling, the more they fan out into a cone shape and increase in diameter. Deeper water obviously causes the cone to become bigger as it moves out of it's origin. Whenever the sonar wave strikes against a good object of any material, it will bounce an echo back to the transducer. The form of the item struck will be determined by how much time it took the signal to head out and then bounce the audio wave echo back compared to the surrounding place. The echo will subsequently show up on your fishfinder screen and you will see the aproximate dimensions, shape and thickness of this item.

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