Intermodulation distortion is an important factor affecting the property of television transmitter.
互调失真是影响电视发射机性能的一个重要因素。
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To minimize the frequency and phase distortion in a DTV transmitter in order to achieve best VSB frequency performance, a pre equalizer can be inserted into the modulator.
To avoid excessive transmission distortion, the bandwidth between transmitter and receiver must be at least twice that with digital carrier modulation.