Digital Audio Radio Service


Digital Audio Radio Service

Digital Audio Radio Service or DARS refers to any type of digital radio service. In the United States it is the official FCC term for digital radio services.

The most popular type of DARS in the U.S. and Canada is SDARS: Satellite Digital Audio Radio Service, operated by XM Radio and Sirius. XM and Sirius both operate in the 2.3-GHz S band, from 2320 to 2345 MHz.

In areas with weak signals, such as downtown areas with tall buildings or parking garages which block satellite signals, Terrestrial repeaters are installed to re-broadcast the signal to ensure continuous coverage.

Increasing the spectrum available for more services would be difficult, since unlike C-band and Ku band services, which allow over 200 locations for satellites, S-band satellites must be spaced too far apart for current technology. Existing vehicle antennas would not allow reception of two different stations on the same frequency, though new technology, requiring different receivers, might be possible.[1]

WorldSpace also operates a DARS network outside of the United States and Canada with a footprint covering Europe, Asia, the Middle East and Africa using the L-band.[2]

References

  1. ^ Bruce Elbert, "Satellite Radio – Accomplishments, Opportunities and Risks," SatMagazine.com, March 2005, http://www.applicationstrategy.com/satellite_radio_ATSI.htm, Retrieved on 2008/05/07.
  2. ^ http://www.1worldspace.com/1/corporate/ Worldspace Corporate Information

See also



Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Digital Audio Radio Satellite — Digital Audio Radio Service (DARS) lässt sich auf Deutsch in etwa mit digitales Hörfunkprogramm übersetzten. Nach Definition der US amerikanischen Behörde FCC ist mit DARS die Ausstrahlung von digitalem Hörfunk im Bereich 2320 bis 2345 MHz des S… …   Deutsch Wikipedia

  • Digital Audio Broadcasting — For other digital audio broadcasting systems, see Digital radio.   Countries with regular services …   Wikipedia

  • Digital-television radio — (or DTR) is an informal term which describes the music channels that are provided with a digital television service. In terms of price and musical variety, DTR falls somewhere between regular AM or FM radio, and satellite radio. However, because… …   Wikipedia

  • Digital Audio Broadcasting — Pour les articles homonymes, voir DAB. en jaune : pays équipés de systèmes DAB, DAB+, ou DMB global début 2007[1 …   Wikipédia en Français

  • Digital Audio Broadcasting —      Países con servicios frecuentes      Países con evaluación de servi …   Wikipedia Español

  • Digital Audio Broadcasting en Suisse — Le DAB ou Digital Audio Broadcasting est un mode de diffusion numérique de la radio. Il est utilisé aujourd hui comme alternative à l offre en FM mais vise le remplacement de celle ci dans les années à venir. Les normes DAB et DAB+ sont utilisées …   Wikipédia en Français

  • Digital Audio Access Protocol — The Digital Audio Access Protocol (DAAP) is the proprietary protocol introduced by Apple in its iTunes software to share media across a local network. DAAP addresses the same problems for Apple as the UPnP AV standards address for members of the… …   Wikipedia

  • Multi-Use Radio Service — In the United States, the Multi Use Radio Service (MURS) is an unlicensed two way radio service similar to Citizens Band (CB). Established by the U.S. Federal Communications Commission in the fall of 2000, MURS created a radio service allowing… …   Wikipedia

  • CRN Digital Talk Radio Networks — (formerly Cable Radio Network), sometimes simply referred to as CRN or CRN Digital Talk , is a syndicator and distributor of radio programs and talk radio networks.The content is primarily talk radio programming, produced both in house and from… …   Wikipedia

  • Digital Satellite Broadcasting Corporation — was one of four companies bidding for Satellite Digital Audio Radio Service, or SDARS, licenses in the United States. The service would have been a listener supported subscription digital audio service. History 1990: Sirius Satellite Radio, known …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.