This looks like yet another mobile broadcast TV technology, but it’s possible that the plan is to use the DMB-S technology developed in South Korea. Indian Space Research Organisation (equivalent of NASA of the US) is looking at developing mobile TV technologies based on satellite delivery.
If DTH broadcasts beam pictures directly into fixed, single-focus platforms like homes, the revolutionary thing in the offing is a to have digitally coded signals beamed on to any automobile moving on the ground and fitted with a suitable antenna.
ISRO is working on a specially-loaded satellite that would have a large, unfurlable antenna, the complex technology to vastly compress data (to MPEG4 for small screens) and the extremely high power to enable the omni-directional transmission.
“It is a unique experiment to provide TV signals for people on the move,” the Chairman of ISRO, G. Madhavan Nair, told Business Line in a recent interview. “We are now in the process of finalising the satellite design; it will have a new technology for data compression, on-board antenna that will be at least 5 metres in diameter, high power and mostly S-band communication.”
The mobile video technologies would be 30 months away, however, an NRI-promoted company in the US is ready to commercialise this in Indian market. The services will be called Digital Enabled Video Audio Service (DEVAS), while the company is in talks with ISRO to lease bulk of the satellite on a long term, Nair said. “We are trying to work out the commercial basis of it.” DEVAS would have to build it up around a network of ground infrastructure, content providers and distribution channels.
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