What Are Fishfinders? And Why Should You Care?

Fishfinder are the devices that tracks schools of fish and are used by the professional fishermen and by amateur fisherman. You can install a fixed mount fishfinder or use a portable one. The portable fishfinders can be easily installed on any boat type and then removed when the day is over. The portable fishfinders will help make sure that you do not come home from you fishing trip with out catching anything.

Fishfinders have three main components. The three components are a screen, clamping device and a transducer. Obviously, the screen enables you to see the fish. The clamping device enables you to set the fishfinder in a convenient location. The transducer beams out the sonar signal and makes it possible to locate the schools of fish.

Every portable fishfinder basically works in the same way. The display capabilities can vary from each model. The transducer is placed in the water. It then sends out the sonar signal in a cone shape. The cone angle is the width of coverage under the boat. Therefore, as the cone angle gets wider, the coverage area gets wider. Fishfinder cone angles vary from model to model. Examine the features with the model you are looking at carefully.

The boat then moves around slowly and the transducer then picks up movement in the water. The data is then sent to the screen showing the fishermen the activity under the boat. A fishfinder identifies schools of fish. It’s that simple. You troll around on the water and locate the fish.

To simplify, a portable fish finder uses similar GPS technology that is used in you car. Some fishfinder models are made for trolling around the lake or river in your boat, while other models require the boat to be more stationary to provide the most accurate readings.

The display screen may be colored or may be gray scale. The gray scale LCD’s will make it even easier to read your display. It will be easier to determine what structures are and what are actual schools of fish. Pay close attention to the different types of screens and their different features. This can be a big determination on which model to purchase.

The frequency capabilities vary between the different models fish finders. Some models have higher frequencies that provide superior resolution, different cone angles and so on. Other models are better for seas with shallow depths while others are configured to handle much deeper water. Fishfinders the have an adjustable range for depth perception have become more available.

Depending on the features, your pricing will vary greatly. Models that have a basic video screen will cost less then models with a full color LCD screen. Fishfinders with a greater horizontal and vertical range will be more expansive the ones that cover a narrow range. Faster sonar updating will add more cost. The faster your sonar updates, the clearer your image and you end up with a more detailed report on your screen.

Therefore the fishfinders out there not only differentiate between living fish, debris and vegetation but they can also point the angler toward the right direction. It is important to find a unit that fits the needs of the fisherman in the specific environment he prefers to fish in.
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