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The radio was invented by Marconi. He sent and received the first radio signal.
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Lee De Forest created the Audion Tube that amplified signals. Some believe that Reginald Fessenden invented it. Fessenden did not make it into history books for inventing it though.
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KDKA was created by Frank Conrad. KDKA was originally named 8XK. It's broadcasting in Pittsburg, Pennsylvania.
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Radios don't charge people to listen to the radio. The do advertisement of different companies that give them money to keep it running.
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KDKA, which is located in Pittsburg, transmitted something to Britain and it was successful received. It was rebroadcasted in Britain and the BBC became more popular.
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Uncle Charlie became too popular so the FRC was created. They gave out licenses to people and assigned station frequencies.
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When the T.V. was invented, radio stations had to figure out what to do to keep the radio popular. They decided to play music on the radio.
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During the Great Depression the radio was a big hit. People would come home and listen to the radio to get away from their troubles. People would rather save up for a radio than save up to fix anything that was broken.
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The first FM radio was invented by Edwin Armstrong. It was the first radio to play with FM and AM. FM radio plays music and AM radio has talk shows.
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In 1942, radios were not being manufactured. Instead defense stuff was being manufactured. When the war was over they continued manufacturing radios.
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Before radios would just have talk shows, stories, etc. In 1970 they started playing 70's rock-and-roll. The music radio was more portable then the other radio.
