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1.概述互调及其寄生效应在许多刊物中已有详细的论述。本文附录的两篇参考资料描述了互调的产生和避免的方法,其中包括避免共信道干扰的频率分配计算技术。遗憾的是,由于大范围使用收、发共设台,每个台又备有相当数量的甚高频、超高频装置,所以会产生一些通常无法直接解释的寄生效应,甚至有时这个台并没有增加设备,但也
1. Overview Intermodulation and its parasitic effects have been discussed in detail in many publications. Two references in the appendix to this article describe methods for the generation and avoidance of intermodulation, including the technique of frequency allocation to avoid co-channel interference. Unfortunately, parasitic effects, which are often not directly explained, are sometimes generated by the widespread use of receiving and transmitting common stations, each with a considerable number of VHF and UHF installations, and sometimes No added equipment, but also