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1. Direct-to-Home (DTH))
services

2.  DTH stands for Direct-to-Home
 Defined as reception of satellite programs
with a personal dish in an individual home
 Invented by Sir Arthur Charles

3.  DTH reaches remote areas.
 User can receive nearly 700 video channels
and 200 radio channels.
 DTH reduces the problems caused due to
weather changes
 DTH is full duplex
 DTH is wireless

4.  Programming Source
 Broadcasting Centers
 Encoder
 Multiplexers
 Modulators
 Satellites
 DTH Receivers

7.  LNBC (Low noise block converter) converts
KU Band signal into L band signal.
 Set-top box performs Digital to Analog
conversion and give RF to TV.

8. The central element of
LNB is feed horn.
LNB converts 12.2 to
12.7 GHz band to 950
to 1450 MHz band
LNB faces parabolic
reflectors which
focuses signal from
satellite to feed horn
of LNB

9. 1) Programming Source
 Channels that provides programming for
broadcast.
 The provider doesn’t create original
programming itself, it pays other
companies for the right to broadcast their
content via satellite
 In this way, the provider is kind of like a
broker between you and the actual
programming sources

10.  The center hub of the system
 the tv provider receives signals from various
programming sources and beam a broadcast
signal to satellites in geosynchronous orbit

11. Satellites
 Receive the signal from broadcast station and
rebroadcast them to Earth
Viewer’s Dish
 Picks up the signal from the satellites and passes it
on to the receiver in the viewer’s house
Receiver
 Processes the signal and passes it on to a standard
tv

13.  Wireless Network
 Provides high Audio and video quality
 Digital Signal Processing while cable tv offers
Analog signal
 DTH is more resistive towards weather
conditions
 Negligible noise
 DTH provides stereophonic sounds effects

14. You can watch the transmission as wel as
can send some information to the
company which in case of cable system
wasn’t available

15.  Service is interrupted if the direction of dish
is changed
 Transmission is interrupted due to sun outage
 We cannot shift to other service provider, as
it was linked with. We must buy a new setup
box
 It is costly (1000Rs/ Month)

16. THE END