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An Overview Of GPS Systems
« on: October 15th, 2013, 12:12pm »
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相关的主题文章: GPS stands for global positioning system, a system that has been established and is managed by the Department of Defense. The GPS system utilizes satellites that have been put into orbit that help people determine their exact location whether it be for the purposes of personal navigation, military activities, or any type of enterprise that requires an exact global positioning by latitude, longitude and altitude. GPS systems are installed in automobiles, motorcycles, some PDAs, Airplanes, dog collars, fishing boats, and so many other products. GPS systems all started out in the army in the year 1970. In the army, many soldiers needed navigation systems to know their directions around other countries. Without this device it would be really hard for them to find their way around. This device has saved soldier’s time in war and has also saved many lives. GPS systems are very powerful devices and are a great navigation system to use to get around. GPS systems have gone for beyond just serving the army. They now serve just about everyone. These navigation systems help drivers find there way through city streets and help hikers find their way through the rough terrains of the mountains. They also help pilots find their way around the skies as well as helping mariners find their way around the great sea. The GPS systems technology can help serve anyone in need of it. GPS systems can also be purchased for motorcycles, and hikers sometimes use such systems to determine where they are while walking. Cyclists should not be left out of the mix, and runners, joggers, and skiers use navigation systems to prevent themselves from becoming lost in an unfamiliar area. Some PDAs - personal digital assistants - are equipped with built in navigation devices, while some Palm devices also include such systems. Navigation systems are sold with a variety of features and what kind of features you should look for is solely dependent on two factors -
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