The term satellite radio refers to a broadcasting-satellite service that offers subscribers access to a variety of music, sports, news, traffic, weather, and talk programming. Subscribers pay a monthly fee to a satellite radio company and use a receiver (available in a variety of models for different listening environments) to receive the audio content. Two popular companies, XM and Sirius, offer subscription-based satellite radio services.
A satellite radio system provides a clean digital signal, which sounds much better than FM or AM and often approaches CD-quality. A satellite radio can also transmit text information alongside music signals, allowing you to hear stock quotes or the latest sports scores on the go. Most satellite radio stations are commercial-free, giving listeners a wide range of entertainment and talk channels.
To provide the service, satellite radio providers place one or more Boeing HS-702/BSS 702 satellites and/or Sirius satellites in a geostationary orbit about 22,000 miles above Earth. Each satellite sends a broadcast signal to radio receivers, which decode the encrypted digital signal into audio output. The receivers are tuned to particular channels and deliver crystal-clear digital-quality sound without any of the static that can plague terrestrial radio.
You can purchase a satellite radio system from various consumer electronics manufacturers for your car, home, or mobile devices. Some systems include a satellite radio docking station and an external antenna, while others feature an internal receiver that connects to an in-dash or portable boombox. Some systems have Dock & Play tuners that can be transferred between vehicles, allowing you to listen on the road and at home with only one subscription.
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