Introduction to Satellite Digital Audio Radio service(SDARS)

Satellite digital audio radio service (SDARS):

SDAR in a satellite-based broadcast radio service
Digital encoded audio is broadcast for entertainment content
Receivers on Earth, either directly from an orbiting satellite, or satellite
A repeater station (it is a special case in which the receiver is a receiver through
Location shielded). SDARS audio through a radio communication service
Programming digitally transmitted directly from one or more space stations
Fixed, mobile, and / or portable stations, and which may include supplemental
Terrestrial transmitters, telemetry, tracking and control features double.
SDARS digital transmition through the compact disc quality audio is available due to
Are employed.

Satellite Radio History:

Satellite radio is more than a decade longer a consideration. In 1992, U.S.
Federal Communications Commission (FCC) allocated a spectrum in
For nationwide broadcasting of satellite-based band 's' (2.3 GHz)
Digital Audio Radio Service (DARS). Only four companies applied for
License to broadcast over the band. FCC licenses
In 1997 these two companies. CD (now Sirius Satellite Radio) radio and
American Mobile Radio (now XM Satellite Radio) paid more than $ 80 million each
S-band for digital satellite broadcasts use of space. September 25, 2001 the first satellite, launched by XM Radio at either 1 July, 2002, followed by Sirius.

We all have our favorite radio stations that we preset into our car
Radios, flipping between them as we drive to work and jobs,
And around the city. But when you travel too far from the source station,
Stable signal breaks up and fades. Most radio signals can only travel about 30
Or 40 miles from their source. Long trips that find you passing through
Different cities, you change radio stations every hour or so as the signal may fade in
And out. Now, a radio station that more than 22,000 (35,000 km) miles away and its signal transmission on the car radio with the clarity of his vision come through. One can drive
About hundreds of kilometers without ever changing the radio station! Not
Only you can hear your favorite tunes will never interfere with the stable but also
Music will be interrupted by few or no commercials.

Satellite radio companies are compared to
Impact of their service to the cable was on the importance
Television 30 years ago. Up to an audience using local stations will not be able to
Satellite radio services, but they will have access to an offering hundreds of stations
Variety of musical styles. Every company has a different plan for his broadcast
System, but the system does not equate to.

XM Satellite Radio, Sirius Satellite
WorldSpace Satellite Radio and provides personal digital audio
Radio (SDARS) commercial-free programming, digital audio quality, and services,
Coverage throughout the country. Each company offers 100 channels of digital music
Talk radio (many of them commercial-free or with a reduced number of ads)
No service interruptions can be obtained from coast to coast. Each
Offering a number of music channels, these services clearly offers programming options
Is not available through traditional radio.

SDARS is a main feature of SDARS almost commercial free programs (or commercials are banned) provides. And also news, weather forecasts, and sports offers in addition to
Entertainment-based programs to serve the primary applications for cars coast to coast radio coverage is continuous. On a long journey for all of us have experienced the problem of trying to listen to the radio. Both AM and FM stations fade in and out as we drive in and out of their coverage
Area. Portable satellite radio service is now complete for the day
Car, home stereo and private radio environment. Some models of car manufacturers have been installing satellite radio receivers for some years now, and
Several models of portable satellite radio receivers are available from a variety of
Electronics companies.

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