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Transmission of radio frequency energy is frequently exhibited in Niko;a Tesla's experiments. He proposes that this could be used as a means of telecommunication.
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Radio invented by Marconi
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Sends a weak transmission over airwaves
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Marconi conducts the first successful transatlantic radio communication
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Poulsen-Arc radio is invented.
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Uses an Alexanderson alternator and rotary spark plug transmittor to make first radio audio broadcast
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Frank Conrad mad first radio station
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invents FM (frequency modulation) radio. FM provides static-free broadcasting and carries the full frequency range of sound perceptible to the human ear.
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Television is such a novelty that big stars, programs, and advertisers defect from radio to TV. Radio begins to localize and concentrate on playing records.
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Regency introduces the pocket transistor radio, the TR-1, which was powered by a standard 22.5V battery.
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RDS allows small bits of data to be included in FM broadcasts, allowing stations to include artist and song info on digital radio displays.
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Becomes the first radio station to broadcast on the internet.
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Progressive Networks releases RealAudio, which offers AM-radio quality sound in real time
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Online internet radio is valued at $49 MILLION
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Radio's revenue rose to above $500 MILLION. Nearly 13% of the American population had listened to the radio online.
