How GPS Works
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Man has always developed tools to help him deal with conditions on this planet. Hundreds of thousands of years have passed while Man has gone on to create tools to not only help him hunt but build homes (and even the Great Wall Of China). That same zest for creation that lead to building ships that could cross the oceans has now given us Global Positioning System, or GPS.
Millions of people around the world have adopted the use of GPS to the point that it is fast becoming a house hold accessory. GPS allows them to help plan their trips, keep tabs on their children and keep track of their vehicles. It helps though to understand the technology that makes this all possible.
The way GPS works is a relatively simple concept when broken down completely. Strategically placed satellites that are orbiting the Earth, relay a signal searching for any GPS receiver on the surface of the Earth. The signal is received by the GPS unit and then decoded. The unit and the satellite then communicate with each other and the satellite then transmits the coordinates to the GPS unit. This transfer of data allows anyone looking at the GPS screen to see where they are currently located.
During the 1970's and 1980's the satellites for GPS were deployed for the United States military to use in navigation for their units on land and at sea. It wasn't until the '90s that GPS was allowed to be used for commercial use. Since that time, GPS has rapidly wormed its way into the marketplace and into our lives. It is so widespread and commonly used that a good unit can be found inexpensively.
Since the price is inexpensive, this means that GPS is affordable for pretty much every socio-economic class of people. Given the availability and low cost, GPS units are pretty much found in every vehicle on the road. This is to be expected because these units help you keep from getting lost and save you peace of mind.
You can purchase a GPS unit in one of two ways. You can buy a unit for your dashboard and remove it each time you leave the vehicle alone. Or you can get the GPS unit installed into your dashboard as an option when you purchase the vehicle.
The last thirty years, GPS has gone from military hardware to an item on our dashboards that we cannot live without. What a journey, huh?
Article Source: Articlelogy.com
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