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Satellite Radio

A satellite radio or subscription radio (SR) is a digital radio signal that is broadcast by a communications satellite, which covers a much wider geographical range than terrestrial radio signals. more...

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Satellite radio is currently at the forefront of the evolution of radio services in some countries, notably the United States. Mobile services, such as Sirius, XM, and Worldspace, allow listeners to roam across an entire continent, listening to the same audio programming anywhere they go. Other services, such as Music Choice or Muzak's satellite-delivered content, require a fixed-location receiver and a dish antenna. In all cases, the antenna must have a clear view to the satellites. In areas where tall buildings, bridges, or even parking garages obscure the signal, repeaters can be placed to make the signal available to listeners.

Radio services are usually provided by commercial ventures and are subscription-based. The various services are proprietary signals, requiring specialized hardware for decoding and playback. Providers usually carry a variety of news, weather, sports, and music channels, with the music channels generally being commercial-free.

In areas with a relatively high population density, it is easier and less expensive to reach the bulk of the population with terrestrial broadcasts. Thus in the UK and some other countries, the contemporary evolution of radio services is focused on Digital Audio Broadcasting (DAB) services, such as HD Radio, rather than satellite radio.

Satellite radio providers

United States

In North America, there are two satellite radio companies, XM Satellite Radio and Sirius Satellite Radio. These two former rivals have announced their intention to merge, which would create a single satellite radio entity in the United States with nearly 14 million subscribers.

Canada

XM Canada and Sirius Canada, operated as separate entities from their American counterparts with 51% ownership by different Canadian companies, may eventually merge as well. Sirius Canada's market share is slightly more than that of XM with 300,000 and 270,000 paid subscribers respectively. XM Canada owns a lucrative contract with the NHL, which it feels would bring a great deal to the merged company in Canada.

Europe, Asia, and Africa

WorldSpace is the sole mobile satellite radio provider in Asia and Africa and seeks to expand into Europe. ONDAS Media S.A., based in Madrid, plans to be Europe's first and premier digital satellite-based provider of multilingual radio, video, and other data and telematics services primarily to vehicles and hand-held mobile devices.