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Alex John Myer was the radio station manager hosting this very special commercial broadcasting

1912: The 1st radio act assigns three-and-four letter codes to radio stations and limits broadcasting to the 360m wavelength . 1920 The first commercial radio broadcast was transmitted on a Pittsburgh Westinghouse station called KDKA.

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Id47 html - PowerPoint PPT Presentation

Alex John Myer was the radio station manager hosting this very special commercial broadcasting