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PDM1kW全固态中波发射机在多年的运行中出现过些故障,其中无功率输出PA盒无电流故障涉及到了发射机多个组成部分的原理,所以在这里作为典型故障做一简单分析。
The PDM1kW all-solid-state medium-wave transmitter has experienced some failures during many years of operation. The non-power failure of the PA box involves the principle of multiple components of the transmitter. Therefore, it is a simple analysis here as a typical failure.