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• What is Global Positioning?
  What is Global Positioning? What is global positioning and how does a global positioning satellite work? Global positioning satellites orbit the earth, transmitting signals to receivers on the ground – the global positioning systems and portable GPS receivers you buy in or for your car. A GPS system does not
• Uses for Global Positioning Devices
  Uses for Global Positioning Devices Global positioning systems have many uses today. Rooted in military use, the Department of Defense in the United States uses GPS systems to locate ships, fighter planes, units and soldiers. Today’s commercial use of the GPS technology includes built-in and portable global positioning receivers for
• Choosing a Portable GPS
  Choosing a Portable GPS If you are considering buying a portable global positioning device for yourself or as a gift, you want to be sure you are getting what you need. A GPS (global positioning system) might have a lot of extra features you will never use, so you don’t