WHAT
IS DTH:
In
general, DTH service is the one in which a large number of channels are
digitally compressed, encrypted, uplinked and beamed down over a territory from
a very high power satellite. The DTH signals can be received directly at homes
with the help of a small sized dish receive unit containing a Dish Antenna of
diameter 60 to 90 cm installed at the building’s roof-top or on the wall facing
clear south and one indoor
Set-Top-Box
unit facilitating viewing of demultiplexed signals from DTH channel bouquet on
TV set. The DTH signals can be received anywhere across the country
irrespective of the terrain conditions provided the area comes under the
footprint of the Satellite.
DTH
transmission eliminates the intervening role of a local cable operator since a
user is directly connected to the DTH service. DTH Transmission is most
preferred in Ku- Band so as to avoid the need of larger Dish sizes for suitably
receiving the DTH signals. As the DTH telecast is in the Digital mode, user is
able to reap all the benefits of Digital transmission. Programs in the DTH
bouquet are having higher resolution picture and better audio quality than
traditional analog signals.
Direct-to-Home
(DTH) satellite television is becoming a buzzword in the satellite broadcast industry
due to the fact that DTH offers immense opportunities to both broadcasters and
viewers. Thanks to the rapid development of digital technology, DTH broadcast
operators worldwide have been able to introduce a large number of new
interactive applications in the television market besides a large number of
entertainment programmes over a single delivery platform. In addition, since
digital technology permits a highly efficient exploitation of the frequency
spectrum, the number of TV channels that can be broadcast using digital
technology is significantly higher than with analogue technology. The increased
number of television channels allows the operator to satisfy the demand of a
number of niche markets with dedicated transmissions.
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