raymarine gps sounder combo
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The supplied transducer includes a transom mount as well as a builtin water temperature probe. It also comes with a 20 foot cable. The temperature graph function shows the difference in temperature between the surface temperature of the water and the currents beneath it.
marine gps fishfinder combo reviews
Because you will only need to learn how to operate one unit, the learning curve for operational operations will be shorter. The downside to a combination unit is that you now have all your marine electronics in one place.
688 humminbird fishfinder
Before purchasing any chartplotter fishfinder combination unit, you should also consider cartography. A certain brand of chart card may be available for trade or you might already have it. You will get the best sounder information and, more importantly, fishfinder data from your combo.
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Most combo sounders will be able to detect water temperature. This information can be very helpful when trying to determine if youre on a current channel or not in open seas. Fishermen often use temperature variations to pinpoint areas that may hold large pelagic fish species like marlin.
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Before you buy any chartplotter/fishfinder combo unit, consider cartography. You might be able to trade in or already own a particular brand of chart cards. If you depend on your sounder for important depth and composition information or, even more importantly, if you fish, you will find the most useful combos where the maker has correctly integrated a fishfinder.
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GPS fishfinders are extremely important to fishing. The devices come with an embedded GPS and can be used to pinpoint your exact fishing location within seconds. Continuous inertial reference pulse (CHIRP) sonar technology lets you see the habits of fish and their feeding patterns much better than traditional GPS. Any fisherman will appreciate a GPS fish finder that can display a greater than 7 inch screen.