At the heart of GPS is the ability to measure the distance from a receiver to several satellites. There are always 4 to 8 satellites visible at any given time. Each satellite sends out a signal, which ...

GPS is the best technology for tracking the location and movement of any object anywhere in the world. GPS stands for “Global Positioning System,” and refers to a worldwide network of satellites, ...

or dog collar to keep track of whereabouts afield. Regardless of how you enjoy the outdoors, like most hunters and anglers these days, you’ve probably tapped into the Global Positioning System in one ...