The sound wave spreads as it gets further from the transducer. The wider the cone, the larger the coverage area, but the as the cone angle spreads, sensitivity diminishes. A 20-degree cone is considered a versatile angle for fishers who frequent different water depths. More advanced devices come with double and triple beams, ideal for scanning deep water depths.
If you’ve used a fish finder before, then you might be wondering why it’s necessary to get one with a GPS. To be perfectly honest, if you are someone who likes to fish in your local area and either casts from the shore or the back of a small boat, then GPS capability may not be something that’s worthwhile. However, for any fisherman who likes to go searching for the best catch, having GPS installed on your finder can make a world of difference. Here are some of the best reasons to get the  best GPS combo fish locator.
The temperature and pressure sensitivity capability of fish finder units allow one to identify the exact location of the fish in the water by the use of a temperature gauge.Functionality present in many modern fish finders also have track back capabilities in order to check the changes in movement in order to switch position and location whilst fishing.
Standalone fishfinder: If you just want to see what’s below, dedicated fishfinders give the biggest display and the most performance for the least cost. If you have a small boat that you use for fishing small inland lakes or are on a limited budget, a standalone fishfinder is for you. Conversely, if your pilothouse has room for multiple displays, or if you just bought a new GPS, get a serious big-screen fishfinder. You can usually add a GPS sensor later to many units, turning them into chartplotter combos.
KISS (the hottest band in the land): OK, maybe this won't be covered in my book, so I can talk about it now. I still can't believe that Madonna is in the Rock And Roll Hall of Fame, and Kiss is not. Kiss hasn't sold more albums than Madonna - not even close. Kiss hasn't collected more gold albums than Madonna - not even close. I guess Gene Simmons' "Family Jewels" really doesn't factor in to the overall calculations. Correct me if I'm wrong, but I don't think Madonna has ever used the words "rock and roll" in the lyrics of a song. Kiss, on the other hand has almost abused the phrase. But then, that's what a rock and roll band is likely to do.
The 256 color TFT screen gives a clear image that can give you readings of depths of up to 240 ft. The charge of the unit can last up to 30 hours. It features SideFinding sonar that gives accurate readings. Its benefit is that you can point it in any direction and get full coverage of the area to find more fish. The temperature feature is included.

In summer and winter, water temperature is very important - these units will help you discover areas that should be comfortable for your target species. Safety is found in structure, for prey and predator alike. The illusion of safety for baitfish equates to food for prey. So locating proper structure is certainly important. It's been said that 90% of the fish can be found in 10% of the water. Believe it. If you're fishing structure in the middle of a lake or a man-made reef, knowing what's below you is important. Now you know.

Whether you're an experienced fisherman with boating experience or a beginner casting from the shore, eBay has the gear you need. Once you have the rods, the rompers and the boat, you still need fishing hooks, lures and tackle boxes. eBay has a great selection of fishing gear for sale. Browse spinning reels, rod and reel combos, fishing line, tackle boxes and rod cases. Whether it’s Okuma or Rapala, hook removers or baitcasting fishing reels, there’s no need to trek to the outdoor warehouse to peruse rows and rows of fishing products. With easy-to-navigate categories and plenty of options, eBay’s online fishing shop offers everything you need to head out to sea or into the quiet creek for the catch of your choice. Check out eBay's lures section to find the soft bait and hard bait that you're looking for. You’ll also find marine electronics like fishfinders—whatever it takes to help make that elusive prize catch. And if you’re in the market for a trolling motor, you’ll find that here as well, and at a great price.
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