Marine fish finders are high-tech gadgets that can help you locate fish through new age technology. Have you have ever wasted an entire day looking for a good place to start fishing, only to realize there was nothing there all along? If so, you can appreciate the idea of a marine fish finding device. How does such a product work?

Fish finders are actually fathometers, which operate via echo sounding and active sonar technology. Marine fish finders send out an electrical impulse from a transmitter which is then converted into a sound wave. It is sent to the water and will strike against objects, sending back information on the object’s size, composition and shape. From the data it relates, you can deduce whether or not the object is something stationary or perhaps a living fish.

The accuracy of such a device will depend on the power of the system and pulse it sends out. The data that it sends back will be displayed on a monitor. This device could help fishermen cut their searching time in half, leaving them more time to concentrate on catching their trophies. Some high-priced Marine fish finders may also be able to show depth and sound, as well as chart plotting data, and electronic compasses. Some fish finders can be connected to a radar navigation device for even more accurate fishing expeditions.

Keep in mind that some marine fish finders are cheap for a reason. They may only offer location information so that you can keep track of your moving patterns and your coordinates. After all, some products are less than $100. However, other devices can be $1,000 or more, presumably because they actually offer a fathometer and GPS technology combined. Some models of marine fish finders may be complex to learn, while others remain relatively simple, perhaps just like an ordinary GPS car device.

You may notice that some models have LCD screens while others have CRT screens. Are there any advantages or disadvantages that come from one or the other? Unlike with television sets, LCD displays for fish finders are actually cheaper than CRT screens. In addition, LCDs are usually waterproof and less fragile overall. The main advantages of CRTs are that they can produce a clearer picture. However, they are also more easily prone to breaking and water damage.

Obviously budget is a concern when choosing your marine fish finders. Some would rather invest in other products, electronic and perishable, so that they can focus more on natural fishing than put too much into high-tech devices. You do have to walk a fine line here. After all, fishing finders do not help improve your technique; they merely prevent you from wasting too much time in one unproductive spot. You could look into black and white or grayscale screens if you are looking to save money.

Marine fish finders do help to make your fishing expedition more enjoyable and far more products. For more information on where to find these finders, look up marine retailers or type in the name of the model you are interested in for some reviews.

Devin Gilliland from BoaterSupply.com Provides Expert opinions and reviews to help you Compare marine electronics and fishfinders.

i have a humminbird fish finder with gps and everything. i was told i can get a chip or something that lets me?

see lakes and the way the lakes are on the bottom for it. what are these called and how much do they cost. also where can i get these chips or whatever there called.

Answer
do a yahoo search for “navionics” the chips are simply that, a chip that you plug into your existing unit that show a topograghic map of the bottom of the lake and also shows other info. They vary in price so I would look around