The transmitter has a range of two meters to three meters, and operates in the unlicensed 2.4GHz frequency band.

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SKA, however, would be able to detect the leakage into space from a standard terrestrial television transmitter at a range of half a dozen light years or so.

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It will take advantage of a two convenient facts about FM radio, first that there isn't a square inch of land in the U.S. or Canada, or for that matter much of the world, that isn't within range of an FM radio transmitter.

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