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사자티비had been operated by amateurs.|Even though Herrold never claimed the invention of radio alone, he did claim the invention of broadcasting to a broad audience, throughout the utilization of antennas meant to radiate signals in all directions.|Radio broadcasting (experimentally from 1906, commercially from 1920); audio alerts despatched w

사자티비have been operated by amateurs.|Even though Herrold never ever claimed the creation of radio alone, he did declare the invention of broadcasting to a wide audience, throughout the use of antennas created to radiate indicators in all directions.|Radio broadcasting (experimentally from 1906, commercially from 1920); audio signals despatch