Need directions? Are you good at getting lost? Then GPS is just the technology youve dreamed of & GPS For Dummies is what you need to help you make the most of it. If you have a GPS unit or plan to buy one GPS For Dummies 2 nd Edition helps you compare GPS technologies units & uses. Youll find out how to create & use digital maps & learn about waypoints tracks coordinate systems & other key point to using GPS technology. Get more from your GPS device by learning to use Web-hosted mapping services & even how to turn your cell phone or PDA into a GPS receiver. Youll also discover: Up-to-date information on the capabilities of popular handheld & automotive Global Positioning Systems How to read a map & how to get more from the free maps available online The capabilities & limitations of GPS technology & how satellites & radio systems make GPS work How to interface your GPS receiver with your computer & what digital mapping software can offer Why a cell phone with GPS capability isnt the same as a GPS unit What can affect your GPS reading & how accurate it will be How to use Street Atlas USA Topo Fusion Google Earth & other tools Fun things to do with GPS such as exploring topographical maps aerial imagery & the sport of geocaching Most GPS receivers do much more than their owners realize. With GPS For Dummies 2 nd Edition in hand youll venture forth with confidence!