| The three main components of satellite radio are | | | | satellites placed at this altitude in a circular |
| Satellites, Radio receivers and the repeaters | | | | equatorial orbit appear to remain motion less in |
| installed on the ground. The XM satellite radio uses | | | | the sky, so there is no need to track these |
| two satellites namely Rock and Roll. These two | | | | satellites in the sky. Geostationary earth orbit |
| satellites are placed at an angular distance of | | | | satellites are high flying and they have become a |
| thirty five degrees from each other. They are | | | | multi billion dollar business. All the countries in the |
| placed in the geostationary earth orbits which are | | | | world are in race for orbital space and to earn |
| at the height of thirty seven thousand kilometers | | | | dollars, so they are investing their time and |
| from the earth's surface. The satellites placed in | | | | money in this. |
| these orbits are called geostationary satellites. The | | | | |