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This made the basics of radio. which lead to an expansion of radio technology. Heinrich Hertz proved transmitting waves and receive electric waves wirelessly
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Transmission of radio frequency energy is frequently exhibited in Nikola Tesla's experiments. He proposes that this could be used as a means of telecommunication.
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John Fleming invents the vacuum tube diode that later helps LeedeForest create the three element vacuum tube called the audion. The audion is considered one of the most important developments in the history of electronics.
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an Act is established that re-assigns stations to clear frequencies and makes radio stations operate in the publics interest. Then the first radio stations start to pop up and the first radio news program is broadcasted. Several claim to be the first; most likely KDKA Pittsburgh or 9XM University of Wisconsin
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People turn to the radio for entertainment and comfort during the Great Depression. President Franklin D. Roosevelt becomes the first "radio president."
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Edwin Armstrong 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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Regency introduces the pocket transistor radio, the TR-1, which was powered by a standard 22.5V battery.
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The worlds technology focuses on space, and radio is different. The first radio communication satellite, Telstar is launched into space. // RDS is shown to the public in car radios/ digital radio displays being allowed in cars.
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Radio experimenters begin to use computers with audio cards to process radio signals and the first digital transmissions begin to be broadcast.
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Radio mainstreams music to live broadcasting for personal or via satellite radio for cars. Streaming music becomes radio's main revenue; ongoing expansion.
