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INSAT has been a major catalyst for the expansion of television coverage in India. Satellite television now covers 100% area and 100% population. The terrestrial coverage is over 65 percent of the Indian land mass and over 90 percent of the population. At present 40 Doordarshan TV channels including news uplinks are operating through C-band transponders of INSAT-3A, INSAT-4B, INSAT-3C and INSAT-2E (Additionally IS-10 & IS-906 INTELSAT leased). All of the Satellite TV channels are digitalized.

The following satellite television services are being operated by Doordarshan:

  • National networking service (DD-1), DD News (DD-2), DD-Sports, DD-Urdu, DD-India DD-Bharati.
  • Regional services in Sates of Kerala, Karnataka, Jammu & Kashmir, Tamil Nadu, West Bengal, Andhra Pradesh, Gujarat, UP, Assam, Maharashtra, Punjab, Himachal Pradesh, Rajasthan, Tripura, Orissa, Bihar, Madhya Pradesh, Uttarakhand (Uttaranchal), Haryana, Mizoram, Jharkhand and Chhatisgarh.

As on Dec.,2008, 1412 transmitters of Doordarshan are working in INSAT system out of which 1133 transmitters (130 High Power Transmitters (HPT), 728 Low Power Transmitters (LPT), 257 Very Low Power Transmitters (VLPT) and 18 Transposers) are working in the DD-1 network and 167 TV Transmitters (73 HPTs, 78 LPTs and 16 VLPTs) are working in the DD-News network. 108 Regional service transmitters (6 HPTs, 8 LPTS and 94 VLPTs), 4 HPTs with digital transmissions are also operational in the Doordarshan Network. Out of these 4 transmitters one located at Delhi is carrying 16 mobile TV services for experimental purpose. 45 DD and Private TV channels are operational through DTH service ("DD Direct+"). 10 channel DTH planned in C-Band for Andaman & Nicobar islands is under installation.

INSAT provides bandwidth for DTH broadcasting service over Indian region. At present DTH service is operational through INSAT- 4 series. INSAT-4 series has high power transponders with 52 dBW EIRP (EOC) to support DTH service with 60/90 cm dish of TVRO at receive side, all over India.

TATA-SKY operates DTH service through INSAT-4A at 83 deg East with total number of 150 video channels. Doordarshan (DD-DIRECT) operates DTH service through INSAT-4B at 93.5 deg East with total number of 48 channels which are free to air. Other private DTH service providers like Sun Direct and Bharati Airtel have also started DTH service through INSAT-4B and INSAT-4CR which is at 74 deg East location.

In all, around 16.2 millions of TVROs are distributed and operational all over India by various service providers including DD DIRECT TVRO's number in excess of 10 millions.

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