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BWT－119通用超短波FM电台是目前功能较齐全，频段较宽，采用数字锁相环的步、炮兵新一代战术级电台．该电台作自动“转信”工作时，经使用发现自动“转信”控发电路易出故障，给部队使用造成不便。本文在介绍自动“转情”原理的基础上分析转信控发电路易坏的原因及改进措施。
BWT-119 Universal FM radio is more complete function, wider frequency band, the use of digital phase-locked loop step, a new generation of artillery tactical radio. When the radio station used for automatic “transfer of letters” work, it was found to be inconvenience to the troops to use the automatic “transfer of letters” control circuit which was found to be malfunctioning. Based on the introduction of the principle of automatic “empathy”, this paper analyzes the reasons for the deterioration of the power transmission lines and the improvement measures.