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The Radio Research Project was a social research project funded by the Rockefeller Foundation to look into the effects of mass media on society. [ 1 ] In 1937, the Rockefeller Foundation started funding research to find the effects of new forms of mass media on society, especially radio.
School of the Air in Alice Springs in 2005. School of the Air is a generic term for correspondence schools catering for the primary and early secondary education of children in remote and outback Australia where some or all classes were historically conducted by radio, although this is now replaced by telephone and internet technology.
The rapid spread of film in the 1920s and radio in the 1930s led to proposals to use it for distance education. [62] By 1938, at least 200 city school systems, 25 state boards of education, and many colleges and universities broadcast educational programs for public schools. [63] One line of thought was to use radio as a master teacher.
Spectrum management is a growing problem due to the growing number of spectrum uses. [6] Uses include: over-the-air broadcasting, (which started in 1920); government and research uses (which include defense, public safety—maritime, air, police—resource management, transport, and radio astronomy); commercial services to the public (including voice, data, home networking); and industrial ...
A broadcasting antenna in Stuttgart. Broadcasting is the distribution of audio or video content to a dispersed audience via any electronic mass communications medium, but typically one using the electromagnetic spectrum (radio waves), in a one-to-many model. [1]
On the FM broadcast band, the Federal Communications Commission (FCC) has reserved the lowest 20 channels, 201~220 (88.1~91.9 MHz) for NCE stations only.This is known as the reserved band, sometimes known by the term "left of the dial" (taken from the Replacements' song of the same name), which refers to the college and other non-commercial stations that broadcast from those frequencies. [2]
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In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking, and satellite communication, among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal (impressing an information signal on the radio wave ...