Although we might not realize it, GPS systems are all around us. GPS stands for Global Positioning System, which, as its name suggests, is a system that reveals the exact location of an object, provided that object has a GPS transmitter attached to it somehow. GPS works by performing GPS calculations using information provided by specially designated satellites. Transmitters in earlier GPS systems had to have a clear, unobstructed view of the sky. To a certain degree that is true in consumer navigational systems such as Tom-Tom or Garmin, as well as the GPS capabilities of most modern cell phones, but in commercial and tactical systems that is not necessarily the case. As research continues on improving GPS technology, more powerful GPS transmitters no longer need a direct view of the sky, which makes them very useful in covertly tracking a moving object.

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GPS, or Global Positioning System has been operational since December 1993, but its history lies much further back to the 1940s when ground based navigation systems such as Decca Navigator began. This, while it planted the seed of inspiration would not take another step forward until the 1957 launch of the first Sputnik by the Soviet union showed that satellites were a possibility.

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The Global Positioning System or GPS is developed by the US Department of Defense. It is a constellation of twenty-seven earth-orbiting satellites, twenty-four of which are working; the remaining three serve as back up just in case one fails. It is a navigation system that enables one to determine location, time, speed and direction. It was primarily developed for military operations. It was in 1983 that the GPS application was made available for civilian use through a directive issued by the former President Ronald Reagan.

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GPS collars can be used to track your pet should he or she ever get away. This tracking can be exact to about one meter or three feet. The term GPS means Global Positioning System. These days, GPS chips are so small that they can be hidden in any pet collar, or even implanted underneath your pet’s skin

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If you need to find cell phone user’s particular location (even if it’s your own), you can use GPS. GPS stands for “global positioning system,” and it was originally developed by the United States Department of Defence for their use. GPS uses a GPS receiver; the receiver calculates the user’s position by precisely timing signals that are being sent by GPS satellites that are in orbit above the earth.

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