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随着我国广播电视技术的快速发展,特别是广泛应用LDMOS大功率场效应管,我国的广播电视工业进入了研制、生产、应用全固态广播电视、调频发射机的新阶段。近年来许多电视发射台已经完成了将电子管发射机替换、更新为全固态发射机的工作。广泛应用全固态发射设备,使发射设备的日常操作与维护要求更高。本文对全固态电视发射设备的故障分析与检修方法分别做介绍,可作为工程技术人员在实际操作与维护工作中的参考。
With the rapid development of China’s radio and television technology, especially the wide application of LDMOS high-power FET, China’s radio and television industry has entered a new stage of development, production and application of all-solid-state radio and television broadcasting and FM transmitter. In recent years, many television transmitters have completed the work of replacing the tube transmitter with an all-solid-state transmitter. Widely used all-solid-state launchers make the day-to-day operation and maintenance of launch equipment more demanding. This article introduces the failure analysis and maintenance methods of the all-solid-state television transmitting equipment respectively, which can be used as a reference for engineering technicians in practical operation and maintenance.