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Guglielmo Marrconi built a wireless system capable of transmitting signals at long distances.
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Marconi conducts the first successful transatlantic radio communication
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Fessenden uses an Alexanderson alternator and rotary spark plug transmitter to make the first radio audio broadcast
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First radio news program is broadcasted
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Edwin Armstrong invents FM (frequency modulation) radio. FM provides static free broadcasting
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The Television makes the radio suffer. radio begins to loclize on only playing records
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Radio can now be heard in the Car, and stationary tuners
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Computers now process the radio signals and Sirius Satellite Radio is founded
