GPS
The Global Positioning System (GPS) is a sa
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GPS is a satellite-based navigation system
The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites placed into orbit by the U.S. Department of Defense. GPS was originally intended for military applications, but in the 1980s, the government made the system available for civilian use. GPS works in any weather conditions, anywhere in the world, 24 hours a day. There are no subscription fees or setup charges to use GPS. A GPS receiver must be locked on to the signal of at least three satellites to calculate a 2D position (latitude and longitude) and track movement. With four or more satellites in view, the receiver can determine the user's 3D position (latitude, longitude and altitude). Once the user's position has been determined, the GPS unit can calculate other information, such as speed, bearing, track, trip distance, distance to destination, sunrise and sunset time and more. The most dramatic, media-popular example of this is, of course, the GPS satellite tracking device. This novel technology sounds so serious that it’s hard for most Americans not to be impressed and alittle excited.
In today’s modern and fast paced world- so many things have gone high tech; unfortunately- crime has- too. Not only do we have to worry about Internet stalkers going after our children- but it seems as though the number of children who disappear is also on the rise- especially when they ar...
The Galileo positioning system is a proposed satellite navigation system- to be built by the European Union (EU) as an alternative to the US military-controlled Global Positioning System and the Russian GLONASS. The system should be operational by 2010- two years later than originally anticip...
Whether it is your vehicle or your child- there are GPS tracking devices that can help you keep track of or locate them anytime- anywhere. It is more dangerous today for your children than at any other time in history. So putting a small GPS tracking device on their person to keep track of th...
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