本文较为详尽地给出了一种采用多种先进技术的频率合成式全锁相ＵＨＦ调制器的实现方法，它参照ＮＥＣ调频激励器的有关原理，采用莫托洛拉公司的大规模频率合成芯片，将频率合成销相环技术运用于ＣＡＴＶ的ＵＨＦ调制器中，同时，采用了一系列新技术（如伴音销相，用ＧＡＬ或ＥＰＲＯＭ译码，大动态双栅场效应管放大，高频变阻二极管组成的电子可变衰减器，微带线设计等），使调制器达到了一个新的水平。 In this paper, a method of realizing frequency-locked full-phase UHF modulator based on a variety of advanced technologies is given in more detail. By referring to the principle of NEC frequency-modulation exciter, using Motolora’s large-scale frequency synthesizer , The frequency synthesis pin phase-locked loop technology used in CATV’s UHF modulator, at the same time, using a series of new technologies (such as audio pin phase, with GAL or EPROM decoding, large dynamic double-gate FET amplification, high frequency variable Resistance diodes consisting of electronic variable attenuator, microstrip line design, etc.), so that the modulator reached a new level.