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TV radio
TV radio, TV band radio, and TV audio radio are common names for a type of radio receiver that can play the audio portion of a TV channel. The actual name of the device may comprise a list of all frequency bands the device can receive (.e.g. ''AM/FM/Weather/TV radio''), one or two of which includes the TV channel bands.
== Analog tuning of analog TV audio ==
For the increasingly uncommon analog television standard, the audio for each TV channel is broadcast on a separate frequency band near the video signal frequency band (refer to article NTSC, Transmission modulation scheme). This audio signal can be heard separate from the video, using standard analog FM radios equipped with the appropriate tuning circuits.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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