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What is DTH

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.

In general, DTH service is the one in which a large number of channels are digitally compressed, encrypted and beamed from very high power satellites. The programmes can be directly received at homes. This mode of reception facilitates the use of small receive dish antennas of 45 to 60 cm diameter installed at convenient location in individual buildings without needing elaborate foundation /space etc. Also, DTH transmission eliminates local cable operator completely, since an individual user is directly connected to the service providers. However, a digital receiver is needed to receive the multiplexed signals and view them on a TV. DTH, in sharp contrast to Cable TV, lends itself to easy monitoring and control.

Transmission in Ku band is most appropriate and widely used for the purpose. As mentioned above, all the encoded transmission signals are digital – thus providing higher resolution picture quality and better audio than traditional analog signals. All the advantages of the digital transmission, as applicable to the terrestrial transmission are relevant in the satellite transmission also.


All India Radio, Thiruvananthapuram, broadcast 3 main bulletins at 06:45am, 12:30pm and at 06:20pm. AIR, Thiruvananthapuram, started news on phone service from May 17, 2006. The news on phone updates are available round the clock.
To get MALAYALAM News on Phone dial +91-0471-2335700 , +91-0471-2335702.
News bulletins are broadcast on Ananthapuri FM also. The daily time slots for News Bulletin on Ananthapuri FM are at 06:00am, 07:00am, 08:00am, 09:00am, 10:00am, 11.00am, 01:00pm, 03:00pm, 05:00pm, 06:00pm and 08:00pm.

For Contacting Regional News Unit Thiruvananthapuram dial 0471-2324982

 Radio Stations in Kerala


The Regional Training Institute (Programme), All India Radio, Thiruvanandapuram started functioning in April 1991. It is one of the six Regional Training Centers and comes under the apex institute – Staff Training Institute (P), Delhi.
The Institute imparts free in-service short-term trainings to programme and administrative personnel of All India Radio and Doordarshan. It caters to three states – Kerala, Tamilnadu and Karnataka and three Union Territories Andaman and Nicobar, Pondicherry and Karaikal.
In addition to the training programmes to the staff of AIR and DD the Institute also conduct Vani Certificate Courses for aspiring radio programme presenters. The Institute for guiding the conduct of the Vani Certificate Course has also prepared a CD ROM.