Journalism Exam 2 04 04 2013 Radio is personal and mobile because it travels with us Specific aim content at narrowly defined audiences Guglielmo Marconi Father of radio Liquid barretter first audio device permitting reception of wireless voices 1903 Reginald Fessenden Audion tube a vacuum tube that improved and amplified wireless signals 1903 Lee DeForest saw radio as means of broadcasting During world war I radio stations were forced to close radio stations Late 1800s considered the beginning of sound recording Broadcasting transmitting voices and music at great distances to a large number of people century Production of broadcasting delayed for 2 centuries until 20th Radio turned into commercial giant by world war II KDKA was first commercial radio broadcast Announced results of presidential election By mid 1920 s there were about 1 million radios in America 1910 congress passed wireless ship act require all ships using us ports and carrying more than 50 passengers have a working wireless and operator radio act of 1912 established spheres of authority for both federal and state governments prodivided for allocating and revoking licenses and fining violators radio sales and profits dropped dramatically act led to brink of disaster government response was series of four national radio conferences 1927 act authorized them to use channels o public interest convenience or necessity o Federal Radio Commission FRC established o Spectrum scarcity limited space in spectrum given licenses for radio Communication Act of 1934 replaced the 1927 legislation Affiliates groups of stations Could deliver to larger audiences O Os owned and operated 04 04 2013 04 04 2013
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