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2. Raymond A. Litke - Wikipedia

   en.wikipedia.org/wiki/Raymond_A._Litke

   Raymond A. Litke. Raymond A. Litke (1920-1986) was an American electronic engineer, the inventor of a practical wireless microphone, and the first to patent the wireless microphone. He was born and raised on a farm near Alma, Kansas, but spent most of his adult life in San Jose, California .

3. Wireless microphone - Wikipedia

   en.wikipedia.org/wiki/Wireless_microphone

   A wireless microphone, or cordless microphone, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone , it has a small, battery-powered radio transmitter in the microphone body, which transmits the audio signal from the ...

4. The Thing (listening device) - Wikipedia

   en.wikipedia.org/wiki/The_Thing_(listening_device)

   It used a straight rod, led through an insulating bushing into a cavity, where it was terminated with a round disc that formed one plate of a capacitor. The cavity was a high-Q round silver-plated copper "can", with the internal diameter of 31 ⁄ 40 in (19.7 mm) and about 11 ⁄ 16 in (17.5 mm) long, with inductance of about 10 nanohenries. [5]

5. Wireless Set Number 10 - Wikipedia

   en.wikipedia.org/wiki/Wireless_Set_Number_10

   The British Army 's Wireless Set, Number 10, was the world's first multi-channel microwave relay telephone system. [1] It transmitted eight full-duplex (two-way) telephone channels between two stations limited only by the line-of-sight, often on the order of 25 to 50 miles (40 to 80 km). The stations were mounted in highly mobile trailers and ...

6. Proposed US rule would ban airlines from charging parents ...

   www.aol.com/news/proposed-rule-ban-airlines...

   The U.S. Department of Transportation is proposing a new rule that would ban airlines from charging parents more to sit with their young children. Under the proposal, released Thursday, U.S. and ...

7. 2008 United States wireless spectrum auction - Wikipedia

   en.wikipedia.org/wiki/2008_United_States...

   The United States 700 MHz FCC wireless spectrum auction, officially known as Auction 73, [1] was started by the Federal Communications Commission (FCC) on January 24, 2008 for the rights to operate the 700 MHz radio frequency band in the United States. The details of process were the subject of debate among several telecommunications companies ...