The Global Positioning System (GPS) project began in 1973, launched by the United States Department of Defense and limited to use by the US Military only.
The original prototype satellite spacecraft was sent into orbit in 1978, with the remainder of the satellite constellation operational by 1993.
Since then, there have been many different GNSS systems used by a variety of countries, accessed by a multitude of devices.
History of GPS
In the year 1973 the United States military, the Department of Defence, launched the project known as GPS.
GPS was not a new concept to the US, as there were multiple predecessors and technology advancements that lead up to the project.
GPS dates...
What is GPS
Humankind has looked to the skies to discover their way for thousands of years, from Polynesian explorers to English navigators. Humans have used the stars in the night sky to locate themselves, and to navigate towards where they wanted to go.
The...
How GPS Works
The Global Positioning System (GPS) is a Global Network Satellite System
For GPS to work, it requires satellites, ground stations and devices that receive positioning information.
Satellites send signals to gps enabled devices, which are used...