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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 ...
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.
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]
21 July 1923, from 1930 part of Dutch Public Radio AM 279 kHz, 1927 also 1004 kHz, today FM network 500 W, 1927 5 kW 2RN (Irish Free State radio) RTÉ (Irish national radio & television) [40] General Post Office (O'Connell Street), Dublin, Ireland 1 January 1926 AM 380 kHz, and from Cork AM612 kHz, NDO, 50% time KRO, 50% NCRV NPO
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.
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 BBC Regional Programme was a radio service which was on the air from 9 March 1930 – replacing a number of earlier BBC local stations between 1922 and 1924 – until 1 September 1939 when it was subsumed into the BBC Home Service, two days before the outbreak of World War II.
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.