![]() ![]() In 1922, over 550 new stations began to fill the available frequencies though many disappeared because they couldn't afford the costs of operation. In 1921, the first live sporting event aired-a boxing match with play-by-play by reporter Florent Gibson. In 1920–1921 about 30 radio stations took to the air, mostly developed from amateur operations. In its early years radio introduced the masses to immediate news and entertainment. Īfter the war, in the years 1920 to 1945 radio became the first electronic mass medium by using radio waves to broadcast to a vast audience. These devices would have more than likely became more widespread, but in 1917 federal government placed restrictions on radio transmissions. The challenge with these sets were tuning into specific stations, though they were inexpensive and easy to make. The first instrument used to access radio signals were crystal sets which used a tiny piece of galena (lead sulfide) called a “cat's whisker” to detect signals. ![]() Radio hobbyists continued to experiment, and popularity grew during the decade before World War I, a time before loudspeakers, where listeners would “listen in” with headphones. Other experiments in radio before it became part of widespread culture were transmitted including those by Charles Herrold in San Jose, California in 1908. ![]() Canadian experimenter Reginald Fessenden produced approximately an hour of talk and music that was heard by radio amateurs before radio's popularity exploded. Live recording of the ITMA comedy radio show in England, 1945Īccording to Encyclopædia Britannica, the first transmission sent over radio waves were voice and music signals transmitted in December 1906 from Brant Rock, Massachusetts. ![]()
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