Let’s be real: The truly fun part of fishing is when you get that tug on the line and you are reeling them in. It is too bad that there are days where that just does not happen, and the only thing you have to show for your work is a tomato red sunburn and a body full of organs that are saturated with beer. Those days are pretty much all in the past for individuals who own depth finders.
These handy devices go by another name, fish finders. They can show you what is under water for depths of up to 100 feet. They can keep you from damaging your boat in shallow water, and they can also help you see where you should drop you line and what depth to keep your lure. It might not qualify as shooting fish in a barrel, but it is the next best thing.
They use technology known as SONAR (sound navigation and ranging.) It was originally developed before World War II for tracking down submarines. After working so well in the War, it quickly was extended for fishing purposes. Only large commercial vessels could afford it since it was extremely expensive. It was quite bulky too. In a few decades, in the 1980s, they became more suitable for individual consumption, and in the years since then, they have become even smaller and more affordable than ever.
Depth finders work by emitting an electronic sound through the water. The sound wave is shaped like a cone, thus it starts out thin and becomes wider. Sound waves bounce back when they hit any object, whether it is a fish, the bottom, or weeds, or even a sunken car.
The sound waves reflection actually reveals the shape of the object, which is then displayed on the screen. The depth of the object is determined by the time it took for the signal to come back.
Some fish finder models are GPS devices as well. GPS = Global Position Satellite. This allows you to mark areas where you find a lot of fish, so you go back another day and see if it is still a favorite spot for the fish to hang out at. It can also be a real life saver, should your boat ever become disabled, you can provide the exact coordinates to rescue personnel.
If you are an avid fisherman or fisherwoman, depth finders can easily pay for itself many times over, in the value of free fresh fish. They start at less than $100. Even the more expensive models at the thousand dollar range can pay for themselves, over time.
Depth Finders Tell You A Lot More Than Depth
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