Quote Originally Posted by Jordan Bozarth View Post
ok thanks. my depth finder will not hardley keep signal on the bottom. It keeps dropping to .7 ft when when im trolling. When i stop it gos to how many ft it really is?? Dont know what that is all about.
It's your transducer. Do you have a Humminbird? If you do, there are a couple of types of transducers. One will pick up greater depths but distort while the engine is running. The other is for more shallow water and will give you an accurate reading while you're running.

Call their customer service for more info and pricing.