Satellite radio is radio that is made available via outer space. This common form of radio is broadcast by radio stations across the earth's surface, whereas satellite radio beams radio signals from satellites hovering around the earth. Satellite radio has a much wider range than ordinary radio since satellite technology allows radio waves to beam over a very large area, as for instance the entire United States much like television. The technology used in creating and making use of satellite radio is obviously more advanced than ordinary radio. Because of this, satellite radio often sounds clearer and has less static than ordinary radio. The choices offered by satellite radio are also far more widespread than that of ordinary radio. In ordinary radio, the listener has to scan for stations within the vicinity. When using satellite radio, the listener only has to listen to one radio station, which offers plenty of channels, all of which are expected to have crystal-clear sound quality.
How does satellite radio work? Of course by beaming radio signals. The home station of a particular satellite radio service located on the earth's surface sends signals to their satellites in outer space. In turn, these satellites reflect back these radio signals to radio receivers on the ground, which translate the data into digital audio signals and information for radio listeners.
There are currently three satellite radio providers in the world. These are XM Satellite Radio, Sirius Satellite Radio, and Worldspace.
XM Satellite radio currently has over 170 audio channels, and these include various genres in addition to music. XM has talk, comedy, and news channels. It costs only $12.95 a month. It boasts of having detailed play-by-play sports coverage. It can be listened to online and also has an online newsletter.
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