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International Telecommunication Union (ITU) designations

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In 1982, the International Telecommunication Union (ITU) designated the types of amplitude modulation: Designation Description A3E double-sideband a full-carrier – the basic Amplitude modulation scheme R3E single-sideband reduced-carrier H3E single-sideband full-carrier J3E single-sideband suppressed-carrier B8E independent-sideband emission C3F vestigial-sideband Lincompex linked compressor and expander #http://en.wikipedia.org/wiki/Amplitude_modulation

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