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The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy".
Radio, sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast stations to multitudes of individual listeners equipped with radio receivers. Learn more about the history of radio in this article.
- Radio is sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast sta...
- Efforts were made to use radio in World War I, but the technology proved unreliable. Wireless sets were available in battlefield trenches, where th...
- Radio waves are located at the low-frequency end of the electromagnetic spectrum, beneath gamma rays, X-rays, ultraviolet light, visible light, inf...
- The first practical wireless radio communication system was developed in Italy by Guglielmo Marconi. Marconi built on the mathematics of physicist...
The radio broadcasting of music and talk intended to reach a dispersed audience started experimentally around 1905–1906, and commercially around 1920 to 1923. VHF (very high frequency) stations started 30 to 35 years later.
Within just four years of the initial KDKA broadcast, 600 stations existed in the U.S. and radio’s rapid popularity contributed to our shared national identity by providing syndicated news, sports, and music.
The timeline of radio lists within the history of radio, the technology and events that produced instruments that use radio waves and activities that people undertook. Later, the history is dominated by programming and contents, which is closer to general history.
Jan 26, 2010 · In 1922, the United States made radio licenses available to broadcasters, and several hundred stations were founded. The 1920s showed audiences that radio was a faster means of receiving...
Beginning in 1912, Edwin Armstrong studied the workings of the Audion and discovered the principle of regeneration. Regeneration enhanced the quality of signal amplification and produced an oscillating signal, or carrier wave, which became the founding principle behind modern radio transmitters.
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