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自20世纪90年代以来,全固态PDM中波发射机因采用了功率合成技术,以其工作性能稳定,电路设计简捷,维护量少,运行成本低,效率高,停播率低等优点,在全国范围内得到了广泛的应用。本文分析了全固态PDM中波发射机的技术特点,并提出了常见故障及日常维护措施。
Since the 90s of the 20th century, the all-solid-state PDM medium wave transmitter has adopted the power synthesis technology. With its merits of stable performance, simple circuit design, less maintenance, low operation cost, high efficiency and low on-off rate, Nationwide has been widely used. This paper analyzes the technical characteristics of the all-solid state PDM wave transmitter, and puts forward the common faults and routine maintenance measures.