How to Use Depth Sounders & GPS offers the reader an inside look at how these modern, essential tools of anglers, depth-sounders and GPS, work. The content clearly explains the how to’s on using them and the way people will gain an understanding of where they are and what the watery world beneath them contains. How to Use Depth Sounders & GPS is suitable for those trying to determine what is the best unit for their type of fishing, this book can help them to unravel the mystique surrounding these electronic marvels.