The term Global Positioning System or GPS is quite significant because it implies the almost perfect navigation or the more technical distinction of it – locating the precise location of an object on the surface of the Earth. Back in the days of the cold war the military used this technology exclusively; however, by the mid 1990s major corporations saw the potential of this global market could bring and today about 90% of American cars uses some type of a GPS device to aid their navigation.
How GPS Function from the Grassroots Level
In order for you or someone else to track your exact location on Earth, 4 GPS satellites out of the 24 satellites (their total number in orbit) have to work simultaneously. At an unknown sequence of intervals the satellites transmit radio signals towards the Earth as they orbit high above our atmosphere. Incidentally the ground stations receives those signals and will relay your or the object that you’re tracking its exact coordinates. The precision is derived from the perfect computer calculation of the time interval of the signals being sent and received, which helps a lot in determining the precise location of the GPS device.
There are Four Big Companies Controlling the GPS Industry
The ones that provide the widest selection of GPS devices in the GPS consumer market are four huge industrial corporations. They include TomTom, Garmin, Navigon and Magellan. While their devices is several notches down compared to that of the military that can guide a missile to successfully hit an enemy target; guiding motor vehicles to their precise destinations have become their defining attribute. The manufacturers today have vastly improved their devices so that it appeals more to the driver and will help him or her take the shortest possible route to reach a certain destination and at the least amount of time.
The Newly Repackaged GPS Nav is now for sale Commercially
Just like a map, a compass and the know-how in navigating the Earth (which was once exclusive to sailors and pilots) the GPS navigation device is your very own version of the 3-in-1 navigation capability. It helps millions of drivers all over the world to find their way around no matter where that destination may be. In the previous decade alone GPS devices have not only become more efficient but very affordable as well, in fact you can buy one for less than a hundred dollars! With the advent of modern smartphones incorporating GPS navigation in them, this poses a serious threat to the big four companies controlling the GPS consumer market. Luckily they’ve prepared for such a scenario and have upgraded their devices as well as their services.