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1 April – The 1930 United States Census is the first in that country's history to require households to report the ownership of a radio-receiving set. 18 April – BBC radio listeners uniquely hear the announcement "Good evening. Today is Good Friday. There is no news." [1]
The Timid Soul was a 1941–1942 comedy based on cartoonist H. T. Webster's famed Caspar Milquetoast character, and Robert L. Ripley's Believe It or Not! was adapted to several different radio formats during the 1930s and 1940s. Conversely, some radio shows gave rise to spinoff comic strips, such as My Friend Irma starring Marie Wilson. [19]
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". Later radio history increasingly involves matters of broadcasting.
1920s: Radio was first used to transmit pictures visible as television. 1926: Official Egyptian decree to regulate radio transmission stations and radio receivers. [40] Early 1930s: Single sideband (SSB) and frequency modulation (FM) were invented by amateur radio operators. By 1940, they were established commercial modes.
The Press-Radio War in the United States lasted from 1933 to 1935. Newspaper publishers were concerned to maintain their own dominance of the news market in the face of the emerging radio networks. The Press induced the wire services to stop providing news bulletins to radio broadcasters , which then developed their own news-gathering facilities.
The term All American Five (abbreviated AA5) is a colloquial name for mass-produced, superheterodyne radio receivers that used five vacuum tubes in their design. These radio sets were designed to receive amplitude modulation (AM) broadcasts in the medium wave band, and were manufactured in the United States from the mid-1930s until the early 1960s.
Africa: Head, Sydney W. Broadcasting in Africa: a continental survey of radio and television at Google Books (1974); Ziegler, Dhyana. Thunder and silence: the mass media in Africa, p. 160–182, at Google Books (1992) Arab world: Boyd, Douglas A. Broadcasting in the Arab world: a survey of radio and television in the Middle East at Google Books ...
The People Look at Radio (University of North Carolina Press, 1946) Leblebici, Huseyin, et al. "Institutional change and the transformation of interorganizational fields: An organizational history of the US radio broadcasting industry." Administrative science quarterly (1991): 333–363.