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本文分析了THOMCAST E UHF 10000DD高增益模块安全控制板的功能。对过激励保护,驻波比过大保护和温度补偿电路作出了详细的分析,同时对输入输出电平检测及图像和伴音AGC电路也进行了分析。
This article analyzes the functionality of the THOMCAST E UHF 10000DD High Gain Module Safety Control Board. The over-excitation protection, the VSWR protection and the temperature compensation circuit are analyzed in detail. Meanwhile, the input-output level detection and the AGC circuit of audio and video are also analyzed.