A TV modulator, called a modulator, is often referred to as a neighborhood-frequency modulator or frequency-modulated modulator, which is modulated to a desired frequency band. Input for audio and video signals, output to a specific frequency band of high-frequency signals. Is the hotel, hospital, sauna foot, large catering, rental housing, factory dormitories and other front-end TV room main equipment. With the use of intermediate frequency Acoustic table filter, the residual edge band is effectively ensured, which is suitable for the adjacent frequency transmission system.
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