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Search Results for “Frequency-modulation radio”
 
 
1) frequency modulation. The Columbia Encyclopedia, Sixth Edition. 2001
...frequency modulation, see modulation; radio....

2) static. The Columbia Encyclopedia, Sixth Edition. 2001
...static, term formerly use to describe electrical noise in radio reception, especially noise that originates outside a transmitter and receiver, e.g., in the atmosphere...

3) FM, abbreviation for frequency modulation. The Columbia Encyclopedia, Sixth Edition. 2001
...FM, abbreviation for frequency modulation, see modulation; radio....

4) stereophonic sound. The Columbia Encyclopedia, Sixth Edition. 2001
...For live recordings, microphones are placed in different positions relative to the sound source. The recorded sound is played back through loudspeakers placed more...

5) radio. The Columbia Encyclopedia, Sixth Edition. 2001
...The term is commonly applied also to the equipment used, especially to the radio receiver. 1 Uses of Radio WavesThe prime purpose of radio is to convey information...

6) Armstrong, Edwin Howard. The Columbia Encyclopedia, Sixth Edition. 2001
...Edwin Howard, 1890-1954, American engineer and radio inventor, b. New York City, grad. Columbia (E.E. 1913). He was associated in research with Michael I. Pupin at...

7) radio frequency. The Columbia Encyclopedia, Sixth Edition. 2001
...Some of these waves serve as carriers of the lower-frequency audio waves; others are modulated by video or digital information. Short waves have relatively high frequencies;...

8) broadcasting. The Columbia Encyclopedia, Sixth Edition. 2001
...United States the first regularly scheduled radio broadcasts began in 1920 at 8XK (later KDKA) in Pittsburgh. The sale of advertising was started in 1922, establishing...

9) modulation, in communications. The Columbia Encyclopedia, Sixth Edition. 2001
...The original, unmodulated wave may be of any kind, such as sound or, most often, electromagnetic radiation, including optical waves. The carrier wave can be a direct...

10) automatic tuning control. The Columbia Encyclopedia, Sixth Edition. 2001
...Assuming that the receiver is at least approximately tuned to the desired frequency, a circuit in the receiver develops an error voltage proportional to the degree...

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