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Topic: Digital Audio Radio Satellite

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S band

Ka band

	Sirius Radio Information - Sirius Satellite Radio (Site not responding. Last check: 2007-10-21)
		Sirius Satellite Radio is an all digital satellite radio provider, currently broadcasting over 120 steaming satellite radio channels of music, news, talk and audio entertainment from coast to coast in the United States.
		Satellite radio in the United States was born in 1992 when the U.S. Federal Communications Commission (FCC) allocated a spectrum in the "S" band (2.3 GHz) for nationwide broadcasting of satellite-based Digital Audio Radio Service (DARS).
		The 3 satellites slowly orbit the Earth approximately 100 degrees apart and employ a "hand-off" method, meaning that only 2 of the 3 satellites are active at any given time to avoid interference as Sirius is only allocated 2 different frequencies.
	satelliteradio.digitalinsurrection.com /sirius_radio.php (1037 words)

	Digital Audio Radio Satellite (Site not responding. Last check: 2007-10-21)
		These include introduction of a new radio service to the public, a national distribution of radio programming to all areas, including underserved and unserved areas and population groups, the creation of jobs and the promotion of technological development in the satellite and receiver industries, and the improvement of U.S. competitiveness in the international economy.
		Satellite DARS may also be able to foster niche programming because it can aggregate small, nationally dispersed listener groups that local radio could not profitably serve.
		Coordination between satellite DARS and Fixed Service systems (FS) is required because the power levels at which the applicants propose to operate their systems to achieve sufficient quality service in a mobile environment are higher than the thresholds levels which have triggered on-going bilateral coordination with adjacent countries.
	classes.lls.edu /s2001/manheimk/telecom/dars.html (5278 words)

	[No title]
		Although the radio broadcasting service has some of its own special characteristics, such as one way communication, overall there is a great deal of combined applicability as far as engineering techniques are concerned between it and the mobile satellite service.
		A key item in much of the CD Radio pioneer's preference documentation is its planned use of satellite space diversity--that is, two satellite platforms separated in this case by 30 degrees in geostationary orbit broadcasting the same program to all points in its coverage area.
		Thus, no matter what probability increment is added to a single satellite system's urban and suburban reception availability by introducing a second satellite with diversity geometry, it still will not eliminate enough of the gaps in coverage within the planned broadcast coverage contour from the satellite(s).
	www.fcc.gov /ftp/Bureaus/International/Public_Notices/1996/pnin6135.txt (2990 words)

	AskMen.com - Satellite Radio
		With the recent news of Howard Stern moving over to this medium, the emergence of satellite radio may be the start of a media revolution.
		Satellite radio is similar to the specialty radio channels available on digital cable and satellite TV.
		Satellite radio broadcasts are digital, which ensures high quality.
	www.askmen.com /toys/special_feature_60/91_special_feature.html (477 words)

	Digital Audio Broadcasting in the UK
		The available radio stations are divided up into National and Regional 'multiplexes' (collections of stations, also referred to as ensembles), and what you'll receive depends on which region you live in.
		As with Digital TV, prices will be falling, especially as the Government are trying to phase out standard analogue TV and Radio by the end of the decade.
		DAB is commonly mistaken for radios with a digital display, digital radio services such as radio stations found on Sky and Freeview, and Internet radio stations.
	www.radioandtelly.co.uk /dab.html (1979 words)

	Satellite Radio FAQ (Site not responding. Last check: 2007-10-21)
		Satellite Radio or Digital Audio Radio Service (DARS) is a subscriber based radio service that is broadcast directly from satellites.
		Satellite Radio is expected to be generally available at the beginning of 2001 from both Sirius Satellite Radio and XM Satellite Radio.
		Sirius Satellite Radio announced in April 2000, that Sirius-1, the first of it's three satellites is scheduled to be shipped to its launch site May 31st and launched June 28th.
	www.digitalaudioguide.com /faq/satellite/faq.htm (808 words)

	Howstuffworks "How Satellite Radio Works"
		We all have our favorite radio stations that we preset into our car radios, flipping between them as we drive to and from work, on errands and around town.
		XM Satellite Radio and Sirius Satellite Radio have both launched such a service.
		Car manufacturers have been installing satellite radio receivers in some models for a few years now, and several models of portable satellite radio receivers are availabel from a variety of electronics companies.
	www.howstuffworks.com /satellite-radio.htm (274 words)

	Fanfare FM - DAB Digital Radio News
		The concept of 'digital radio' (DAR) while it may be in the back of every broadcasting executive's mind right now, is certainly not in evidence anywhere else, such as 'on-air' personnel singing the "I can't wait to sound like a CD" song.
		While the proliferation in digital transmission technology will no doubt develop a software solution for decoding of digital signals arriving on different wave bands, it's the frequency at which the signal is being transmitted that will, no doubt, draw the most concern for reception reliability.
		Because digital technology has only been used recently in the recording industry, many compact disk recordings are made from from tapes and transcriptions, all of which were recorded originally in analog.
	www.fanfare.com /dab-nws.html (2440 words)

	Stereophile: Digital Radio Still Waiting To Take Off
		On the one hand, we have Sirius Satellite Radio, which is currently up and running with their first 100 channels of non-commercial programming available for $9.95/month, and on the other, XM Satellite Radio, which was supposed to literally get off the ground last week.
		In fact, XM is still on the launchpad after Sea Launch, the company handling the rocketry for XM, scrapped lofting the digital audio broadcast satellite some 30 seconds before the planned liftoff.
		Radios for both services are expected to debut first in cars as a several-hundred-dollar option.
	www.stereophile.com /news/10942 (465 words)

	Direct TV: Satellite TV Systems
		Digital Insurrection, your source of news and information on digital satellite, radio and media...
		Satellite Digital Audio Radio (SDAR) is a new revolution in the radio industry, one...
		Satellite radio was hyped as the answer to tired commercial stations...
	www.satellite-tv.info /search/satellite-tv38.html (716 words)

	Local Emergency Radio Service Preservation Act of 2004
		(5) Because radio receivers are universally available and frequently battery-powered or located in automobiles, the Federal Communications Commission's Media Security and Reliability Council concluded that `radio broadcasters are likely to be the last line of defense for communicating with the public under extremely adverse conditions that could result in the event of a local disaster'.
		(7) Because radio programming is supported by advertising, the ability of local stations to continue to provide local news and other services and to ensure communications during emergencies could be jeopardized by a diversion of the listening audience away from local radio programming.
		(2) digital audio radio satellite service repeaters shall be restricted to simultaneously retransmitting the programming transmitted by satellite directly to digital audio radio satellite service subscribers' receivers, and may not be used to distribute any information not also transmitted to all subscribers' receivers.
	www.theorator.com /bills108/hr4026.html (668 words)

	Direct TV: Satellite TV Systems
		SIRIUS is the best satellite radio service with over 120 channels of satellite radio: 65 music radio channels with no commercials, along with over 50 world-class sports radio, news radio and...
		Satellite Digital Audio Radio (SDAR) is a new revolution in the radio industry, one that promises to leave...
		Pioneer gex-p910xm xm digital satellite radio tuner for...
	www.satellite-tv.info /search/satellite-tv5.html (980 words)

	Satellite Digital Audio Radio Jumps Into Your Car -- 08/15/2001
		With satellite digital audio radio services (SDARS), listeners will be able to listen to the same radio stations from anywhere in the Unites States.
		This service differs from the digital music service that is currently offered by direct broadcast satellite and cable systems, because it can be received in a moving vehicle.
		XM Satellite Radio Holdings, Inc. and Sirius Satellite Radio, Inc. plan to launch their subscription services by year end.
	www.cnsnews.com /ViewPrint.asp?Page=\Business\archive\200108\BUS20010815a.html (413 words)

	XM Radio - XM RADIO SUCCESSFULLY LAUNCHES SECOND SATELLITE
		XM Satellite Radio (NASDAQ: XMSR) second satellite, "Roll," launched flawlessly this evening and was on its planned path toward orbit, completing the company's satellite launch program.
		The first signals from the satellite were captured by a ground station in Perth, Australia, at 7:20 pm EDT as planned.
		All three XM satellites - "Rock," "Roll," and a spare which is built and in its final testing phase - are Boeing 702 models, manufactured by industry leader Boeing Satellite Systems, a business of the Boeing Company.
	www.xmradio.com /newsroom/screen/press_release_2001_05_08.html (528 words)

	Audio Digital Radio Satellite Information and Resources
		Digital Audio Radio Satellite or DARS is the FCC term for...Find thousands of free online definitions and reference guides at TheFreeDictionary.com.
		WorldSpace founded the Satellite Radio Industry in 1992 and was the first to design andamp; implement the technology to deliver satellite radio services.
		Digital Audio Radio Service (DARS) 1990 - In June, a government-industry group staged a demonstration in Canada of the European- designed Eureka-147 digital radio system that used the L-band.
	www.satellites-tvs.com /more/satellite/Audio-Digital-Radio-Satellite.html (633 words)

	Audio Digital Radio Satellite (Site not responding. Last check: 2007-10-21)
		Satellite television, like other communications relayed by satellite, starts with a transmitting antenna located at an uplink facility.
		Uplink satellite dishes are very large, as much as 9 to 12 meters (30 to 40 feet) in diameter.
		With satellite digital audio radio services (SDARS), as they're called, listeners will be able to tune in to the same radio stations anywhere in the United States.
	www.satellitetvdishsystems.com /audiodigitalradiosatellite (964 words)

	Antex Electronics
		Expanding their line of TriplePlay satellite radio receivers designed for multi-room and multi-zone distributed audio systems, Antex Electronics, a leading developer and supplier of OEM Professional Digital Audio Products, Satellite Receivers and Internet Appliances, now offers the XM-3000 TriplePlay, a three-zone XM receiver suitable for residential and commercial applications.
		Antex Electronics, the leader in multizone satellite radio receivers for the home and business, has introduced the XM-100, the first XM Satellite Radio receiver specifically for the commercial music market.
		XM Satellite Radio XMSR, the pioneer and leader in satellite radio, and Antex Electronics, a developer of digital audio and satellite reception products, today announced an agreement under which Antex will develop and market high-end satellite radio products for receiving XM's critically- acclaimed programming.
	www.antex.com (868 words)

	Static-Free Satellite Radio: XM and Sirius (Site not responding. Last check: 2007-10-21)
		Digital Satellite Audio Radio promises near-CD quality digital sound, but it hasn't taken off as expected.
		The Delphi SKYFi for XM is the first portable digital satellite radio.
		The reader had plunked down his hard-earned money for a satellite radio on his boat and said he was pleased.
	www.practical-sailor.com /pub/29_11/features/4828-1.html (174 words)

	WorldSpace Satellite Radio Network
		WorldSpace uses its two satellites, AfriStar and AsiaStar, to broadcast more than 100 digital-quality audio channels to people around the world who want world-class programming that is not available or rarely found on local regional or national terrestrial radio.
		Each satellite has three beams and each beam is able to send more than 40 crystal clear audio channels directly to portable receivers.
		Inside each WorldSpace Satellite Radio digital audio receiver is a proprietary chipset designed to lock into the WorldSpace satellite signal in your region of the world.
	www.worldspace.com /howitworks (183 words)

	DARS (Site not responding. Last check: 2007-10-21)
		CD Radio submitted a winning bid in the amount of $83,346,000.00 for the 2320-2332.5 MHz portion of the frequency band and American Mobile Radio Corporation (XM Satellite Radio) submitted a winning bid in the amount of $89,888,888.00, for the 2332.5-2345 MHz portion of the band.
		Ford vehicles are expected to be the first cars and trucks in the nation to have factory-installed satellite radio receivers.
		With an XM-capable radio and a small antenna, listeners everywhere in the continental United States will be able to enjoy their favorite XM channels.
	history.acusd.edu /gen/recording/dars.html (580 words)

	Satellite Digital Audio Radio Service (SDARS) (Site not responding. Last check: 2007-10-21)
		CD Radio and American Mobile Radio Corporation won the auction, paying $89 million and $93 million respectively for their licenses.
		A notice of proposed Rulemaking was issued in 1995, requesting comment on proposed licensing rules for satellite DARS as well as the potential impact of DARS on terrestrial AM and FM Radio.
		CD Radio has received a Section 319(d) waiver allowing it to begin construction of its first satellite.
	www.lta.com /res_regulatory/sdars.htm (707 words)

	History Of Satellite Radio - Satellite-Galaxy.com - History Of Satellite Radio
		Today, radio listeners are joining with XM's strategic partners and staff to make radio better - and to make history.
		XM Satellite Radio to team with MLB in 10-year, $650M deal -...
		Radio is close to taking the wraps off a deal with Major League Baseball that would be the largest in the brief history of satellite radio.
	www.satellite-galaxy.com /satellite/history-of-satellite-radio.html (186 words)

	Satellite digital audio radio service tuner architecture for reception of satellite and terrestrial signals (US6510317)
		Satellite digital audio radio service tuner architecture for reception of satellite and terrestrial signals
		A satellite digital audio radio receiver system and method.
		In the illustrative embodiment, the first and second transmitters are mounted on first and second satellites and the third transmitter is a terrestrial repeater.
	www.delphion.com /details?pn=US06510317__ (450 words)

	MEIsearch.com - Websites - Mobile Audio - Digital Radio (Site not responding. Last check: 2007-10-21)
		Complete digital radio portal from the UK with a FAQ for the beginner and expert, product listings, links and more.
		International non-governmental organization whose objective is to promote, harmonise and co-ordinate the implementation of Digital Radio services based on the Eureka 147 DAB system.
		XM purchased one of only two satellite radio licenses from the FCC to deliver this cutting-edge service.
	www.meisearch.com /websites/Mobile_Audio/Digital_Radio (241 words)

	Sea Launch Delivers Satellite to Orbit for XM Satellite Radio
		Named "Rock," the satellite is the first of two of the most powerful spacecraft ever built by Boeing Satellite Systems, the world's leading provider of commercial communications satellites.
		On this fifth successful mission for Sea Launch, preliminary injection data indicates that the spacecraft was inserted precisely into GTO with an injection accuracy of 22 meters high in perigee and 26.3 kilometers in apogee.
		XM Satellite Radio is creating and packaging up to 100 channels of digital audio, including music, news, sports, talk, comedy and children's programming, which will be transmitted directly to vehicles, homes and offices coast to coast.
	www.boeing.com /news/releases/2001/q1/news_release_010318s.html (531 words)

	Definition: satellite digital audio radio service (Site not responding. Last check: 2007-10-21)
		A satellite-based direct-broadcast radio service in which digitally encoded audio entertainment material is broadcast to Earth-based receivers, either directly from an orbiting satellite, or--in cases in which the receiver is in a shielded location--from the satellite to the receiver via a repeater station.
		A radiocommunication service in which audio programming is digitally transmitted by one or more space stations directly to fixed, mobile, and/or portable stations, and which may involve complementary repeating terrestrial transmitters, telemetry, tracking and control facilities.
		A radiocommunication service in which compact-disc quality programming is digitally transmitted by one or more space stations.
	www.atis.org /tg2k/_satellite_digital_audio_radio_service.html (113 words)

	Digital Audio Radio Service (Site not responding. Last check: 2007-10-21)
		DARS (digital audio radio service) is the FCC term for satellite radio, currently being made popular in the U.S. by...
		Digital audio radio service Free Web Online Encyclopedia resource...
		DARS (digital audio radio service) is the FCC term for satellite radio, currently being made popular in the U.S. by XM Radio and Sirius.
	www.radiopoint.info /resources/digital-audio-radio-service.php (261 words)

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