transmission frequency of the television picture.
any of the frequencies present in the output of a television camera, from almost 0 to over 4 megahertz.
any frequency applied to the receiver's picture tube in order to display the picture.
the frequency of a signal conveying the image and synchronizing pulses in a television broadcasting system. It lies in the range from about 50 hertz to 8 megahertz
Collins English Dictionary - Complete & Unabridged 10th Edition
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