A chip of the postage stamp size is being designed to power a system that uses television white space,which is otherwise a wasted spectrum bandwidth to beam Internet to score of households. TV White Space refers to the unused spectrum between active TV channels that are traditionally used for over-the-air transmissions using TV towers and roof top antennas. In India, this mainly refers to the spectrum used by organisations such as Prasar Bharati. A base station and a user side modem can provide Wireless Rural Broadband using TV white space spectrum from 400 to 800 MHz. This technology does not require line-of-sight. It thus ensures longer range, and can serve up to a radius of 10-15 km depending on the antenna tower height and transmit power. The range can further be increased with more powerful and taller antenna.
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