中短波发射机故障特征分析与精细化维修技术探究

Analysis of Fault Characteristics in Medium and Short-Wave Transmitters and Exploration of Advanced Maintenance Technologies

摘要

本文围绕中短波发射机运行故障特征与精细化维修技术展开研究，结合某中短波发射台值机日志和检修记录，分析功率放大、调制、电源、冷却及射频输出网络的典型异常表现，提出基于状态数据采集、特征识别、趋势研判和模块化处置的维修流程。应用结果表明，故障复发率由15%降至5%，平均维修时间由4 h缩短至1.5 h，连续运行时长由72 h提升至168 h，说明该技术可有效提升发射机运行可靠性与维修效率。

Abstract

This paper investigates the operational failure characteristics of medium and shortwave transmitters and advanced maintenance techniques. By analyzing operational logs and maintenance records from a specific medium and shortwave transmission station, it identifies typical anomalies in power amplification, modulation, power supply, cooling systems, and RF output networks, and proposes a maintenance workflow based on state data acquisition, feature recognition, trend analysis, and modular troubleshooting. Results demonstrate that the failure recurrence rate decreased from 15% to 5%, average maintenance time was reduced from 4 hours to 1.5 hours, and continuous operation duration increased from 72 hours to 168 hours, indicating that this approach significantly enhances transmitter reliability and maintenance efficiency.

关键词

中短波发射机 / 故障特征 / 精细化维修 / 模块化诊断 / 运行可靠性

Key words

medium and shortwave transmitter / fault characteristics / precision maintenance / modular diagnosis / operational reliability

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