中波广播发射系统中天馈网络的基本原理及维护

Basic Principles and Maintenance of Antenna Feed Network in MW Broadcasting Transmission System

随着广播技术的快速发展,中波广播发射系统(以下简称发射系统)在广播领域的应用日益广泛。天馈网络作为发射系统的关键组成部分,对于提高信号传输效率和稳定性具有重要意义。文章主要对基于10 kW中波广播发射机(以下简称发射机)搭建的发射系统中的天馈网络部分进行分析,介绍了发射机的基本原理,并且从基本原理、结构特点、优化方法等几个方面对天馈网络进行了分析,最后总结了根据实践经验得出的天馈网络维护方法,旨在为发射系统的优化设计和运行维护提供理论支持与实践指导。

With the rapid development of broadcasting technology,medium wave broadcasting transmission system(hereinafter referred to as transmission system)is increasingly widely used in the field of broadcasting.As a key component of the transmission system,the antenna feeder network is of great significance for improving the efficiency and stability of signal transmission.This article mainly analyzes the antenna feeder network part of the transmission system based on the 10 kW medium wave broadcast transmitter(hereinafter referred to as the transmitter),introduces the basic principles of the transmitter,and analyzes the antenna feeder network from several aspects such as basic principles,structural characteristics,and optimization methods.Finally,it summarizes the maintenance methods of the antenna feeder network based on practical experience,aiming to provide theoretical support and practical guidance for the optimal design and operation maintenance of the transmission system.