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This TV spectrum thing is more promising than satellites and drones. Drones might be best for the least populated parts of the world.
Microsoft plans to provide free internet access across India
the firm has proposed to use the "white space" - the unused spectrum between two TV channels - to provide free connectivity to large sections of the Indian population. ...... The 200-300 MHz spectrum band available in the white space can reach up to 10 km compared to 100 metres range provided by Wifi ..... This spectrum belongs mainly to Doordarshan and the government and is not used at all. The firm has sought clearance from the government for a pilot project in two districts ..... The programme would be implemented in phases from this year till 2018 and ensure that government services are available to citizens electronically.