Test 1 - Chapter 1 Telegraph and telephone are radio's...

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Chapter 1 Telegraph and telephone are radio’s ancestors. Why? -> Supported by commercial means, dominated by big corporations, point- to-point communication media Inventors (late 1800s) Hertzian waves 1873 James Maxwell published a theory of an invisible form of radiant energy or electromagnetic energy. 1888 - Heinrich Hertz generated electromagnetic waves that later became radio. Gugilemo Marconi Developing radio as means of communication. Launched company to manufacter wireless telegraph equipment. Influenced broadcasting in America with American Marconi in 1899, monopoly on US wireless communication. Reginald Fessenden (Canada) Invented the alternator which demonstrated that voice could be transmitted over air Lee de Forest 1906- invented the amplifying audion or vacuum tube Radio Goes to War 1917 - during WWI the Navy took control of radio operations in the US 1918 - radio technology vastly improved as a result of Navy’s control RCA took control of American Marconi and formed Radio Corporation of America after WWI. Cross-liscencing, manufacturing, and sales agreements were made Up to this point, radio was used for point-to-point communicaiton only Emergence of Broadcasting - Radio Surged in the 1920s Thousands of hobbyists were trained in radio during the war. Improvements made during war gave radio better reception and greater range Businesses realized that broadcasting = $$ KDKA First and oldest broadcasting station - Pittsburgh, PA Dr. Frank Conrad - Westinghouse Engineer Amateur radiotelephone station 1920- KDKA began broadcasting news reports of elections, music, and talk Soon, Westinghouse, GE, RCA, and AT&T started experimenting with radio stations
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Radio growth during the 1920s. Between 1920 and 1927 grew from a fad to a MAJOR INDUSTRY 1922- 28 stations; 6 months later 378; years end 570 WEAF- New York: first used for commercial time “toll broadcasting” Radio networks emerged (Chain broadcasting) RCA’s David Sarnoff formed the National Broadcasting Company (NBC) in 1926 Columbia Broadcasting System (CBS) was formed in 1927 by William S. Paley Networks helped big name talent in to rural areas and with Advertising. Radio Act of 1927: Radio Spectrum was a national resource - no individual could own a frequency, eliminated interference issues, station must operate in “Public interest, convenience or necessity,”and established that the federal government could not censor any content (excluding indecency and obscenity), and established federal Radio Commission (FRC). Was later amended by Communication Act of 1934 - FRC was replaced by Federal Communications Commission (FCC). Radio Growth During 1930-1948 1930-1948 known as the “radio years” Revenues increased from $40 million in 1930 to $506 million in 1948 Radio networks affiliates grew from 131 to 1104 Radio became the number one source of home entertainment Radio programming in the Early Years. Radio Programme gains social power
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This note was uploaded on 04/19/2008 for the course RTVF 1310 taught by Professor Way during the Spring '08 term at North Texas.

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Test 1 - Chapter 1 Telegraph and telephone are radio's...

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