中波发射台天线地网维护的探讨

摘要

中波广播的传播白天主要是靠地面传播，夜晚主要是靠地面和天波传播。由于地面场强远比天波场强强，因此如何提高地面波辐射场强是广电工作者探讨的课题。本文简要介绍了中波传播途径、中波广播发射天线以及中波天线地网的建设与维护；针对中波天线地网由于地理、地质、人为以及特殊原因，存在易损等原因进行了分析，提出了采用电缆探位仪巡查中波天线地网断损点的实用性、可行性，并通过实例对电缆探位仪在中波天线地网检测中的应用进行了论述。%This paper briefly introduced the transmission route, broadcasting transmitting antenna and the construction and maintenance of antenna counterpoise of medium-wave transmitter. It also analyzed the common reasons of antenna damage, and put forward the method of cable ground level gauge inspecting antenna failure point. The practical application was then discussed.