How GPS Works
Since Man first fashioned tools to help him hunt, he has always tried to improve the technology that assists him in living on this sometimes unforgiving planet. Over the centuries these tools have developed and become more efficient and effective and progressively have become more and more high tech. GPS, or Global Positioning System, is one of these advances in technology.
It seems every other person has a GPS device of some sort. And why not? GPS tracking devices allow people to keep track of their loved ones and their vehicles and allow them to keep from getting lost on their out of town trips. While it is nice to admire GPS for the technological marvel it is, one should be informed of what GPS is and how it works.
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.
GPS was developed in the 1970′s and early 1980′s exclusively for the United States military to use. For almost two decades, the wonderment that is GPS was the U.S. military’s sole domain. Then in the 1990′s the technology was made available to the general populace. After it became commercially available, GPS slowly began its appearance int he marketplace and gradually accelerated its adoption into our culture to the point that a good GPS unit can be had for under $200.
All this makes GPS technology affordable to consumers everywhere. And since it has become more affordable, GPS systems are now seemingly in every vehicle on the road. By helping you make sure you are going the right direction, GPS saves you time, money and frustration on your next trip.
If you purchase a car and it has a GPS option, you are well served to purchase it as it will not only help you, it will increase the vehicles resale. If your vehicle did not come equipped with a GPS as an option, you will want to find one that fits your budget and individual preferences.
In a few short decades, GPS has gone from military hardware, to a tool used by only the well off, to a ubiquitous item in many households all around the world.