Attention drivers! Find your way faster with handheld GPS equipment
Welcome to the best online site on handheld GPS applications and uses. Now you can learn all about the history of GPS systems with GPS reviews and more.
Handheld GPS tracking systems allow you to navigate anywhere, anytime. Portable hand held GPS devices are small computer generated systems made for your travel needs.
For instance, handheld GPS software can go in your automobile for fast and accurate satelite navigation.
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Global Positioning System (GPS) is a satellite navigation system, which is owned and operated by the U.S. Department of Defense.
Designed specifically for the U.S. military, GPS enables satellite signals to determine navigational points, such as:
Each satellite signal is processed via a special code, which then allows the receiver to compute specific locations anywhere in the world.
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The history of GPS is as fascinating as it is relevant to our modern times.
The Global Positioning System was born from military research into the measurement of time and the atomic structure.
A study launched from Einstein's discoveries into the theory of gravity led to new technologies, which were based on the gravitational red shift.
The basic design of the atomic clock was the father of GPS, allowing this new technology to emerge at crucial times in the Second World War.
Another aspect that played a role in the development of GPS were early navigational studies on sextant measurements. The first compasses could determine the positions of the stars, moon and sun, but lacked the ability to pinpoint longtitude.
After the advancement of radio-navigation systems, the U.S. Navy began to look into the use of satellites in order to find location.
GPS was first created at the U.S. Pentagon in 1973, but wasn't fully operational until recently. Its success in the Gulf War proved GPS could accurately measure location from land, sea or air.
In modern times, GPS has expanded its usefulness to the public, providing many useful applications.
For instance, handheld GPS devices have a new integrated-circuit technology making them smaller and more portable.
With so many applications and uses, GPS systems are a great new technology.
How it Works
GPS technology is revolutionary not only for the U.S. military, but for the average person as well.
The impressive aspects of GPS technology are in its ability to compute positions in three dimensions. For instance, a satellite will broadcast its position and time to a billionth of a second via digital radio signal.
A handheld GPS integrates information from four satellites in order to calculate an exact position, anywhere on the planet. This can be achieved all within a few hundred feet.
There are some important elements that help a GPS find its exact position, including:
A GPS is able to accurately find these three navigational elements through the verification of each satellite.
Satellite consistency is monitored on a daily basis by the U.S. Department of Defense. Speed, position and altitude is monitored twice a day, and sent back to the satellites to be broadcast.
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