She also described an idea for a remote-controlled torpedo: A radio transmitting directions and a receiver implementing them would be synchronized so that their frequencies could be changed simultaneously in a random manner.

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Development of unlicensed radio transmitting devices has already led to a wave of new consumer technologies, including Wi-Fi and other innovations like digital cordless phones and in-home video distribution systems that have generated billions of dollars of economic growth.

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They will soon begin burying radio-transmitting metal detectors alongside elephant trails leading into the park.

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In press conferences and interviews before the Apollo 11 flight, Armstrong spoke mostly in clipped, dry sentences, almost as if he were transmitting radio messages from a distance while still on Earth.

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And new innovations such as printed circuit technology and the white space radio spectrum (transmitting data over unused TV channel airwaves as we switch from analogue to digital TV) are all helping to create a world where everything can talk to everything else, and everything to us.

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Technicians on the roof, examining a microwave link to a remote transmitter, also found a cable linking to a second alleged pirate station, that while not transmitting, contained radio equipment which officials also seized.

BBC: The pirates' view of pirate radio

"Impossible Broadcasting" is Trans-Global's version of a two-way transistor radio tuned into the human experience and transmitting a sometimes unexpected soundscape to and from a brave new world.

NPR: Trans-Global Underground: 'Impossible Broadcasting'

Radar, or radio waves, sweep the sky every 12 seconds transmitting images of approaching aircraft that can then be viewed by controllers onscreen in a series of centers spanning the nation.

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