And in any kind of weather, blinding rain or driving snow white-out. And on any surface - land, sea or air.
Access is free to all users and provides accurate location and timing information.
GPS is literally revolutionizing a host of activities including air, land and sea navigation, vehicle and vessel tracking, surveying and mapping, asset and natural resource management, and network synchronization. Imagine you are Robin Hood and you are leading your merry men from one point to another. Along the way you store your position at regular intervals. You just backtrack using the GPS and it will guide you to each of the stored locations. Ok, now you are Goldilocks, intent on finding the house of the Three Bears.