The Global Positioning System (GPS) is a navigation system that has developed dramatically over the past few decades. It is a global navigation satellite system (GNSS) that is made up of a minimum of 24 satellites in the earth’s orbit. Currently, more orbits have been placed in space to orbit the earth, allowing for better precision of the results obtained from the GPS.
GPS was originally invented in the 1970s, and satellites were launched by the United States Department of Defense into Earth orbit in 1978. The purpose of GPS was to serve the United States military, but after some tragedy, technology has been made available to the public for navigation on multimedia workstations.
The Tragedy of 1983
The event that caused the technology to be distributed worldwide was the shooting down of a plane when it trespassed into illegal territory. It was the Korean Air Lines Flight 007 that was scheduled from New York to Seoul via Anchorage, Alaska. However, the flight did not reach its destination as it lost its track and entered prohibited Russian territory. The plane was shot down by the Russian military forces, which suspected the plane to be a spy plane. The whole plane was destroyed, which resulted in the deaths of all 269 passengers.
After this incident, the GPS was allowed to be accessible to the general public for navigation. Although it is allowed, GPS software and devices still need to be bought or rented for that access.
How It Works
A GPS device can retrieve location and time information from the auto radio mp3 GPS satellites regardless of the weather conditions or the place from where it is accessed if the GPS meets certain conditions. For a navigation GPS device to work and provide precise geolocation, it requires an unobstructed line of sight to four or more GPS satellites. Moreover, the signal conditions can be poor in areas with extreme urban populations and an abundance of structural traffic.
Applications of Navigation GPS
GPS navigation has several uses, but the most common ones are general common applications. These can be accessed from several methods which include:
- Dedicated GPS navigation devices: These devices are of different sizes ad capabilities, and they are suitable for hiking and outdoor activities.
- Mobile phones with GPS capability: They have built-in GPS that allows for mobile tracking.
- Palm, pocket and laptop PC: Many PCs have the GPS software pre-installed.
GPS modules: If the computers do not have GPS connectivity, they can be connected to these GPS modules.