摘要
Abstract
The essence of medium wave transmission is to send high-power high-frequency signals generated by the transmitter to the coverage area through the transmission antenna,in order to achieve the goal of program coverage.In the entire transmission system,stable transmitters,well maintained feeders and antennas,and well-designed antenna line allocation networks are the fundamental guarantees for high-quality transmission.In addition,there are several easily overlooked but important ancillary facilities-grounding grids,underground wells,and lightning protection devices.This article discusses the design and construction methods of grounding grids,underground wells,and lightning protection devices.关键词
中波发射台/天馈线系统/地网/地井/防雷装置Key words
medium wave launch pad/antenna feeder system/earth mat/underground well/lightning protection device分类
信息技术与安全科学
