Article: GPS: How Does It Work?
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GPS: How Does It Work?
The Global Positioning System is a satellite-based navigation system put into place by the U.S. Department of Defense and is a network made up of 24 satellites in orbit around the earth. The satellites orbit the earth at about 12,000 miles, are solar powered, they transmit a signal of only 50 watts, and travel at speeds of about 7000 miles per hour. The GPS system was originally intended for military use only, but during the 1980s the government decided to allow civilian use. The satellites make a complete orbit around the earth every 24 hours, and are spaced equal distances from each other.
Now that we have covered most of the equipment information, let?s talk about what a GPS can do, and why we have such technology. The GPS system allows for satellite tracking of just abou...
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