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Broadcast television systems
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==== Modulation ==== Given all of these parameters, the result is a mostly-continuous [[analog signal]] which can be modulated onto a radio-frequency carrier and transmitted through an antenna. All analog television systems use [[Single-sideband modulation#Vestigial sideband (VSB)|vestigial sideband modulation]], a form of [[amplitude modulation]] in which one sideband is partially removed. This reduces the bandwidth of the transmitted signal, enabling narrower channels to be used.
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