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National Radio Astronomy Observatory

(Encyclopedia)National Radio Astronomy Observatory (NRAO), federal observatory for radio astronomy, founded in 1956 and operated under contract with the National Science Foundation by Associated Universities, Inc.,...

radio altimeter

(Encyclopedia)radio altimeter: see altimeter.

Radio City

(Encyclopedia)Radio City: see Rockefeller Center. ...

short waves

(Encyclopedia)short waves, radio waves whose frequencies range from about 3 to 25 megahertz (Mhz), corresponding roughly to the high-frequency band (see radio frequency). When they impinge on certain layers of the ...

citizens band radio

(Encyclopedia)citizens band radio: see radio.

radio-frequency identification

(Encyclopedia)radio-frequency identification (RFID), a technology that uses radio waves to transmit data and uniquely identify an animal, person, or thing. An RFID system typically consists of a tag and a reader. T...

Radio Free Europe

(Encyclopedia)Radio Free Europe (RFE), broadcasting organization established in 1950 with the stated mission of promoting democratic values and institutions. Its original purpose was to broadcast news to countries ...

Museum of Television and Radio

(Encyclopedia)Museum of Television and Radio: see Paley Center for Media. ...

Radio Frequencies (table)

(Encyclopedia)Radio Frequencies

Nuffield Radio Astronomy Laboratories

(Encyclopedia)Nuffield Radio Astronomy Laboratories: see Jodrell Bank Observatory. ...