A brief over view of Direct To Home Technology

1. (DTH)
DIRECT TO HOME
Presented By:
B. AJAY KUMAR
13W91A0424
II - ECE

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CONTENTS
 Introduction
 History of DTH
 Main Components
 Network
 Facility
 Different usage
 Scenario in India
 Conclusion
 References

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What is DTH ?
DTH is defined as:
 The reception of satellite programs with a
personal dish in an individual home.
 DTH does away with the need for the local
cable operator and puts the broadcaster directly
in touch with consumer .
 A wireless digital audio / video service is
delivered through satellite.

4. HISTORY
• The first person who invented the technology for DTH was
sir ARTHURE CLARLES CLARKE , a british inventor in
late 1946.
• The DTH service was first proposed in INDIA in 1996 , but
was not approved due to concern over national security.
• Finally , In 2000 DTH service was allowed and
DOORDARSHAN was first to provide the service to
the consumers from 1st of April ,2000.
• After this other DTH service provider like ZEE and STAR
started pushing hard for DTH service in INDIA and setup
earth station whose cost was 2.15 million and was valid
for 10 years in INDIA.
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5. 5
MAIN COMPONENTS OF DTH
 Broadcasting center
 Satellites Encoders
 Multiplexers
 Modulators
 DTH receivers.

6. 6

7. Services uplinked
to Satellites
Services downlinked via
receive satellite dish
and fed in to STB
Enc1
Enc2 MUX
Content “on demand” servers
QPSK
Modulator
Real Time TV services
PROCESS

8. BLOCK DIAGRAM OF DTH SYSTEM
Low noise
amplifier
Down
Converter
Amplifier
Down
Converter
Tunable
Local
Oscillator
Filter
Demodu
lator
TV SET
Video
baseband
Channel selector
Low noise block
down converter

9. SET TOP BOX
A settop box can
demodulate the
received signal and
can convert these
signal into audio and
video signal.
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10. Cable
Head-end
Private Home Private Home
Private Home
DTH Receive Facility

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PLAYER’S IN D.T.H
 DISH T.V
 TATA SKY
 BIG T.V
 SUN DIRECT
 VIDEOCON d2h
 AIRTEL DIGITAL TV
• D.D. DIRECT

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93.5 INSAT 4B
95 NSS
83 INSAT 4A
74 INSAT 4CR
ST1
DTHSATELLITESCENARIO
YEAR 2009
INDIAN DTH
SUBSCRIBER
91.5 MEASAT
98.5
PROTOSTAR-1

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0.06 0.18 0.75
1.925
4.8
9.8
15
20.9
26.1
30.4
33.8
36.2
37.6
0
5
10
15
20
25
30
35
40
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Year
Subscribers
(Millions)
GROWTH OF DTH USERS
2007 to 2015…Growth of 683 %

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LATEST IN DTH IN INDIA
Recording of TV programs
remotely using mobile
device.

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CONCLUSION
DTH has made the hopes of the people of rural
areas to come true.
 DTH service in India is in initial stage delivering
only TV broadcasting
In near future, launch of DTH internet service is
expected in our country.
It provide the wide thinking of rural people
which helps to develop the culture of society.

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REFERENCES
www.mindstein.com
www.airtel.in
www.tvasia.com
www.wikipedia.com
www.videocond2h.com
Newspapers

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