中波广播发射机功放模块工作原理及常见故障

Working Principle and Common Faults of Power Amplifier Module of Medium Wave Broadcasting Transmitter

随着世界进入信息时代,广播事业实现了迅速的发展,我国中波广播发射设备已转向全固态数字化。中波广播发射机在我国广电设备中应用数量较多,占据重要的战略地位,其日常维护和使用也是各个台站的重要工作任务。功率放大模块作为中波广播发射机的重要组成部分,在发射机中的地位不言而喻。为了提高维护和使用水平,为广大技术人员提供理论和实践帮助,保障发射机的正常运转和安全播出,针对功率放大模块的工作原理、常见故障及处理方法进行研究。

With the world entering the information age,the broadcasting industry has developed rapidly,and China’s medium-wave broadcasting transmission equipment has turned to all-solid-state digitalization.Medium-wave broadcast transmitters are widely used in China’s radio and television equipment,occupying an important strategic position,and their daily maintenance and use are also important tasks for each station.As an important part of the medium wave broadcast transmitter,the power amplification module plays a self-evident role in the transmitter.In order to improve the level of maintenance and use,provide theoretical and practical help for technicians,and ensure the normal operation and safe broadcast of the transmitter,the working principle,common faults and treatment methods of the power amplifier module are studied.