Satellite radiology

2. CONTENTS
 What is satellite Radio
 History
 Current Providers
 How Does It Works
 Sirius Satellite Radio
 XM Satellite Radio
 Advantages
 Disadvantages
 Conclusion

3. What Is Satellite Radio?
●Satellite Radio is digital radio that receives signals
from a broadcast communication satellite.
●Functions in any place if there is a line of sight
between the antenna and the satellite
●Requires access to a commercial satellite for signal
propagation
●Services are commercial business entity that offers
packages of channels as part of service
●Requires a subscription from end users

4. History
●Sirius Radio began in 1990, while XM Radio started
up in 1992.
●Starting in the early 21st century, when satellite radio
hookups became more feasible, the competition
between these two companies became fierce.
●The competition ended in 2007, when Sirius bought
out XM Radio.
●The two major satellite radio providers in the United
States, Sirius Radio and XM Radio, began operations
in the early 1990s.

5. Current Providers

6. How Does It Work?
●Satellite radio uses stationary transmitters which have
limited range to broadcast ,uses mobile satellites
orbiting the earth.
●They pick up radio signals straight from orbiting
satellites.
●The satellite bounces the transmitted radio frequency
off of the satellite and out to the millions of satellite
radio listeners around the world

8. Sirius Satellite Radio
●Operated in the United States and Canada
●Provides 69 channels of music
●65 channels of news, sports and entertainment
●Broadcast 24 hours a day commercial free from three
satellites
● $12.95/monthly+ $10-$15 for
activation

9. XM Satellite Radio
●United States and Canada
●73 music, 39 news, sports and entertainment, 29
regional traffic and weather, 23 play-by-play sports.
●$12.95/mon, $7.99 internet only
●Provides weather to pilots through XM WX satellite
Weather data casting service

10. Advantages
●Information about local traffic and weather
conditions
● Absence of static
● It produces crystal-clear sound
● Programs are not interrupted by commercials

11. Disadvantages
● Subscription Fee
● Signal Interruptions
● Signal Limitations
● Non-Local

12. Conclusion
●It will be an intelligent communications device that
will offer more services and conveniences than
can be provided by conventional analog
technology.
●For the broadcaster, digital radio is not just a way
to stay competitive with other forms of digital
sound, but one that offers numerous new business
opportunities as well.
●It is a bright future for listeners and broadcasters
alike: a future that truly promises to provide 'the
best sound on the air waves' for the world.

13. Any Queries????

14. THANK YOU