How a Fishfinder Works Using Sound Signals to Catch Fish

The technology for catching fish effortlessly originally intended for submarines only has now been made available to you. Can you make it work correctly?

A fishfinder, otherwise called depth finder, is a sonar unit used to catch fish. This gadget works through the bouncing of the waves from the bottom of the ocean or any body of water which can determine the depth of the water as well as the objects in between the surface and the bottom. This is how technology works. In fact, the fishfinder that was first used was made only of a rotating diode. Today, liquid crystals are used which enables the fisher to see both the bottom and the fishes.

Basically, a fishfinder works using Sonar. Sonar is actually an acronym for Sound Navigation Ranging. This works by first sending electrical signals to the transducer. This signal is generated by an amplifier and enables to energize the crystal. The crystal then reverberates to a certain frequency that converts the electrical signal to sound energy or mechanical acoustic. This in turn, will result into the oscillation of the molecules of water where the sound will travel. The sound will then be pulsed out in a beam following a wave pattern. The acoustic pulse will then travel through the lake or ocean water. In saltwater, the rate of travel is at 4800 feet/second while in fresh water, the rate is at 4920 feet/second. Should the energy within the beam strike any object, e.g., fish, submarine, etc., it becomes reflected to the transducer, which in turn will collect and pass back the result to the unit where it can be displayed.

It would be interesting to note that the fishfinder that is available in the market today is originally created to be a submarine finder. With innovations however, major development on the Sonar technology has been experienced and transformed into other uses that affected even the fishing world.

The use of a fishfinder is not at all difficult. However, you will need to get some practice before you can get the hang of it. All you need to do is follow the manual that comes with the fishfinder and you are already on your way to catching that prize blue marlin.

The internet is home to a wide array of fishfinders. You can get to choose the fishfinder that will be right for your budget and possesses the features you value most. Some of the most important features and settings of a fishfinder that you should look out for are the Sensitivity feature, the Fish ID Setting, the Auto Depth feature and the suppressor setting. Each of these features has their own role to play when you are into the process of catching your fish. It is up to you how you can make the best use of each one as you pursue your goal of getting the best catch.

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Patrick Regoniel
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Posted on Apr 16, 2010