The United States Air Force is. They control the satellites.
With large number of low-earth-orbit satellites and the geo-synchronous orbit stuffed full of communications satellites, there aren't all THAT many "medium" altitude satellites. But there are some. The GPS navigation satellites, for example, are in highly inclined 12-hour orbits, and an unknown number of military "spy" satellites are in that middle range.
garmin gps is the best by far! you can find all sorts of accesories and software for them anywhere that gps are sold. also they are the easiest gps unit to use!
They usually get their energy from the Sun, but they may also have a nuclear reactor. That's how they get their energy; how they work in detail would depend on what they are supposed to do. There are satellites for many different purposes.
The duration of Fareed Zakaria GPS is 3600.0 seconds.
GPS satellites are owned by the United States government. The US Department of Defense (DOD) is responsible for GPS operations and management.
GPS satellites do not 'find' anything, that is not their purpose.
Geostationary satellites are the ones used for GPS satellites.
GPS IIA-1 NAVSTAR 1 (Both GPS satellites)
Global Positioning Systems (GPS) use trigonometry. There are a number of satellites orbiting the earth. The GPS uses the time signals sent by these satellites to establish the distance to the satellites. Trigonometry is then used to find the location of the GPS unit.
There are currently 30 healthy GPS satellites in orbit.
Most communications satellites operate outside of the earth's atmosphere. The GPS satellites are about 23,000 miles from the surface of the earth.
GPS signals are processed in the GPS unit and displayed, and they are also processed via three Global Position Satellites. All four units work together and process GPS signals (some to the satellites from the GPS, and some from the satellites to the GPS) to create an accurate position.
A GPS works by satellites that are located in outer space. These satellites are connected with cameras that show the whole earth. You GPS and the satellites systems are working together to provide maps for you.
No. GPS Satellites are free to receive.
You can use a GPS anywhere the satellites shine.
No as GPS is obtained from satellites.