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An Italian known as Mocarni was credited for creating radio. He sent the first radio signal according tio history. He might not have been the actual first person though.
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Lee De Forest created the Audion Tube. Many people think it was actually Reginald Fessenden. The Audion Tube amplified radio signals.
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Radio signals were used to save some of the people on the Titanic. Although many people still died, the use of radio kept the survivors alive. This was one of the good uses of radio.
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The KDKA was created. It was a very successful radio station. It is still around today in Pennsylvania.
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Some people wanted to make their own radio stations. If you had money and the right equipment, anybody could do it. People started making their own stations in the 1920's.
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In 1922, WEAF started advertisements. Advertisers would pay radio stations $50 to make a commercial for them. The commercials would last 10 minutes.
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Too many people were making their own radio stations. The FRC made rules for having stations. It organized radio production.
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Call letters were made for organization. West of the Mississippi, used K, and East of the Mississippi used W. This is still used.
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They were amplitude modulation. They were also 535KHz - 1605 KHz. It was used for talk shows.
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They were frequency modulation. They were also 88MHz - 108MHz. They were used for music.
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1930-1940 was the Golden Age for radio. It was during the Great Depression and the World War. It was a way of release.
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In the 30's, TV was invented. Advertisers saw more money coming from TV commercials, so radio was becoming abandoned. But radio was saved by music.
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Edwin Armstrong created the FM radio. It used FM for higher quality sound. Listeners had to buy these new radios.
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Today, music can't save the radio. People can now listen to music using other ways. Radio may become abanonded completely this time.
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Music has obviously changed a lot. It is still on radio, but it is very different. Like radio, music has a history of its own.
