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Views: 1745 Description: It began on October 2, 2003. And, Dish TV, the first company to launch direct-to-home (DTH) television services, decided to tread slowly. Instead of taking on cable operators head-on in metros and cities, where most subscribers were, the fledgling DTH company decided to focus on rural markets, remote areas and the outskirts of some cities where cable network wasn't available or very poor.
The DTH (Direct To Home) service is basically a digital satellite service that provides satellite television programming directly to subscribers home anywhere in the country. Since it employs wireless technology, the television programs are transmitted to the subscriber’s television directly from the satellite. This service does not involve the usage of cables and any other wiring infrastructure.
A DTH network comprises of a broadcasting centre, satellites, encoders, multiplexers, DTH receivers and others.A DTH service provider is required to lease Ku-band transponders from the satellite. The function of encoder is to convert the audio, video and data signals into the digital signals. These digital signals are then mixed by multiplexer. On the receiving end at user home, the set up includes a small Dish Antenna and Set-Top Boxes which decode these signals and convert them back to audio, video and data signals.
Some of the popular DTH providers in India includeTataSky, Airtel Digital, Videocon D2H, Sun Direct, Dish TV, Big TV and others.
Videocon d2h is one of the largest Indian pay TV providers, providing direct broadcast satellite service—including satellite television, audio programming, and interactive television services—to commercial and residential customers in India. It uses MPEG-4 with DVB S2 digital compression technology, transmitting using ST 2 satellite.
Its primary competitors are cable television and other DTH service providers—Airtel digital TV, Reliance Big TV, DD Direct+, Dish TV, Sun Direct and TATA Sky. Videocon d2h has 6 million subscribers as of January 2014.
Sun Direct is an Indian direct broadcast satellite service provider. Its satellite service, launched in 2007, transmits digital satellite television and audio to households in India. Sun Direct uses MPEG-4 digital compressionSun Direct technology, transmitting HD Channels on INSAT 4B at 93.5°E. and SD Channels on MEASAT-3 at 91.5°E. It is the country's first MPEG-4 technology DTH service provider and the first Regional (TAMIL) HD Channels Provider. It is the major DTH service provider in South India.
Tata Sky is a direct broadcast satellite television provider in India, using MPEG-2 and MPEG-4 digital compression technology, transmitting using INSAT 4A satellite. Incorporated in 2004, Tata Sky is a Joint venture between the TATA Group and 21st Century Fox
Source : Wikipedia
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