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引言DF100A型短波发射机是北京广播设备制造厂以美国大陆电子公司418型短波发射机为基础生产的100k W PSM短波发射机。此发射机的载波输出功率额定值为100k W,可在3.2~26.1MHz范围内使用,具有调幅(A3E)和单边带调幅(H3E或R3E)功能,在我国应用广泛。该机型短波发射机运行相对稳定,整机效率可达70%。但由于某些原因,造成发射机一些频率无法正常工作,笔者根据自己多年的工作经验,对问题进行归纳和分析,得
Introduction The DF100A shortwave transmitter is a 100k W PSM shortwave transmitter manufactured by Beijing Broadcasting Equipment Manufactory based on the Continental 418 Shortwave Transmitter. This transmitter has a carrier output power rating of 100kW and can be used in the range of 3.2 to 26.1MHz. It has the functions of amplitude modulation (A3E) and single-sideband amplitude modulation (H3E or R3E) and is widely used in our country. The model of short-wave transmitter operation is relatively stable, the machine efficiency up to 70%. However, due to some reasons, causing some of the transmitter frequency does not work, the author based on his years of work experience, the problem is summarized and analyzed, have