A GPS or Global Positioning System, is a satellite navigation system. It consists of 24 satellites, the U.S. Department of Defense placed in orbit, which originally composed for military operations. In the 1980s, the U.S. government opened the system for civilian use. Since that time, Global Positioning Systems are very popular for many applications.

GPS works in any weather, in almost any place and at any time. The only places where signals can notreceived are caves, tunnels, inside buildings, and under water. Using it does not require a subscription fee or setup charge-it's available free to anyone who wants to use it. GPS receivers are extremely accurate, often to within 15 feet or less.

The GPS consists of three parts: satellites that orbit Earth, control and monitoring stations on Earth, and receivers owned by users. GPS receivers pick up signals that satellites broadcast. The receiver provides latitude, longitude, altitude, and time.

Applications

Many cars now have built-in GPS. Some automotive GPS from Garmin and other manufacturers, emergency contact, while other systems also provide location information and direction.

Operational applications of GPS continue to multiply. It has increased efficiency and reduced costs for the survey by reducing setup time and dramatically increases the site accuracy. Foresters and farmers use GPS. Geologists, biologists and otherScientists use them for their precision and timing capability for more accurate position information. Commercial fishermen and professional GPS navigators.

Drivers and operators use to improve customer service and fleet tracking. It is an important tool for public safety, emergency response and disaster relief. In order to avoid the air, improve GPS pilot communications, navigation and hazards. GPS revolutionized the exploration of space.

Recreational use of GPS navigation continuesto expand. Hikers, hunters, snowmobilers, fishermen and sailors to use. In fact, who wants to keep track of where he or she find out is how to be from one place to another to keep a GPS useful. Without GPS, the global activity of geocaching would not be possible. GPS has even improved the game of golf by golfers how far they hit their balls.

Equipment

GPS receivers range from relatively small, portable and affordable mobile phones for recreational usean innovative technology from NASA missions designed for high Earth orbit. Improved technology makes GPS more available within dense foliage environments. The increasing integration of GPS in cell phones, emergency measures to improve their technology and popularized.

The latest systems are both more sophisticated and user-friendly than previous systems. Manufacturer support services, improving the accessibility and availability of technology.

Manufacturers andDealers give clues to the GPS systems are best for specific applications. With many choices of GPS receivers now available, including consumer ratings on purchases. The Internet is a powerful tool to obtain information about the technology, applications and devices and for the purchase of new and refurbished receiver. Commercial, governmental, and academic websites educate the public about this growing technology that will soon become part of everyday life.

Thanks To : LCD Monitor Choose Shop Nuvi 1390T GPS French Island Sylvania dvd player Networking Books Review