1.
A SEMINAR ON
Satellite Television
1

2.
CONTENTS
1. INTRODUCTION
2. TYPES
3. HISTORY OF ST
4. TECHNOLOGY USED
5. COMMERCIAL DBS SERVICES
6. COMPONENTS
7. FEATURES
8. CABLES V/S SATELLITE
9. CONCLUSION

3.
Introduction
Satellite television is television programming delivered by the
means of satellite communications and received by an outdoor
antenna, usually a parabolic reflector generally referred to as a
satellite dish.
In many areas of the world satellite television provides a wide
range of channels and services, often to areas that are not
serviced by terrestrial or cable providers.

4.
Direct-broadcast satellite
television comes to the general
public in two distinct flavors –
analog and digital.
This necessitates either having
an analog satellite receiver or a
digital satellite receiver.
Analog satellite television is
being replaced by digital
satellite television and the latter
is becoming available in a
better quality known as high-
definition television.
Types:

5.
 The first satellite television signal was relayed from Europe to
the Telstar satellite over North America in 1962.
 The first geosynchronous communication satellite, Syncom 2,
was launched in 1963.
 The world's first commercial communications satellite, called
Intelsat I, was launched into synchronous orbit on April 6,
1965. The first national network of satellite television, called
Orbita, was created in Soviet Union in 1967.
History of Satellite TV
Syncom IITelstar

6.
 The first commercial North American satellite to carry
television transmissions was Canada's geostationary Anik 1,
which was launched in 1972.
 ATS-6, the world's first experimental educational and Direct
Broadcast Satellite, was launched in 1974.
 These are contributed to the development of satellite TV.
History of Satellite TV
ATS 6
Anik 1

7.
 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
 The uplink dish is pointed toward a specific satellite and the
uplinked signals are transmitted within a specific frequency
range
 These signals received by one of the transponders tuned to
that frequency range.
 The transponder 're-transmits' the signals back to Earth.
 The satellite receiver or set-top box de-modulates and
converts the signals to the desired form
Technology of Satellite TV

8.
Technology of Satellite TV

9.
 Many satellite television customers in
developed television markets get their
programming through a direct broadcast
satellite (DBS) provider.
 The provider selects programs and broadcasts
them to subscribers as a set package.
 Basically, the provider’s goal is to bring
dozens or even hundreds of channels to the
customer's television in a form that
approximates the competition from cable
television.
 Unlike earlier programming, the provider’s
broadcast is completely digital, which means
it has high picture and stereo sound quality.
Direct to Home television

10.
The commercial DBS service, Sky was launched in 1989.
Sky TV started as a four-channel free-to-air analogue service on
the Astra 1A satellite, serving both Ireland and the United
Kingdom.
By 1991, Sky had changed to a conditional access pay model,
and launched a digital service, Sky Digital, in 1998.
Prime Star began transmitting an analog service to North
America in 1991, and was joined by DirecTV in 1994.
At the time, DirecTV's introduction was the most successful
consumer electronics debut in American history.
Commercial DBS services

11.
As of 2013, India has the most competitive
direct-broadcast satellite market with seven
operators (six private DTH and one
Government-owned DTH) vying for more
than 110 million television homes.
 Subscribers to India's six private direct-to-
home (DTH) satellite television providers
have now reached 56.5 million, according to
the latest figures issued by the Telecom
Regulations Authority of India (TRAI) on
31st March 2013.
The six private DTH operating in India are
Dish tv (Zee network), Tatasky (tata group),
Sun direct (sun network), Digital tv (Airtel).
D2H (Videocon), Reliance(digital tv)
Commercial DBS services in India

12.
Programming sources
The broadcast center
The satellites
The viewer's dish
The receiver
Components of Satellite TV

13.
High Definition
Simple User Interface
Internal Drive
Remote Management and Playback
Digital Video Recorder
Detailed program information
Keyword search
Favorite lists
Features of a Satellite TV

14.
Conclusion
Features like a DVR and some internal memory can eliminate
the need to purchase a recorder and an external drive, while also
reducing clutter around the TV set. Mobile management and a simple
user interface make the user experience more comfortable, while HD
capabilities guarantee the best viewing experience. Knowing about
some of these basic features helps consumers make a more informed
decision when trying to select a satellite TV receiver for their home.

15.
Cable TV vs Satellite TV
Cable TV is very similar to terrestrial television with the
exception that the signal cable goes all the way to the provider
where as terrestrial television goes over the air. A few drawbacks
of cable TV include subscription costs as well as availability.
Very few if any cable providers offer any basic cable service free
of charge. Also the user is limited to whatever is provided from
their cable operator
The main advantage of satellite TV over cable is the ability
to freely explore free-to-air channels provided on a wide range of
satellites. This is where a custom built satellite system becomes
very useful particularly when accompanied by a multi dish setup.
While custom built systems can work out rather expensive, the
user gets far more features than a Sky receiver when it comes to
exploring foreign satellites.