中波广播发射天线的选型技术研究
Research on Selection of Medium Wave Broadcasting Transmitting Antennas
陆金超1
作者信息
- 1. 河南广播电视台无线电台管理中心,河南 450000
- 折叠
摘要
目前许多中波转播台使用的发射天线有很多仍为上世纪七八十年代所建的拉线塔天线,使用年限久,安全隐患大,同时有些台站面临搬迁,为节省土地资源并提升发射天线综合利用率,计划将部分桅杆式拉线天线升级改造为自立塔天线.本文着重分析工作频率多、发射场区地理环境复杂、具有多座发射天线的中播转播台、在规划更换改造发射天线时,针对天线类型的选择和分布定位等需要考虑的技术因素进行统筹规划,可为其他中波台在改造更换发射天线提供参考.
Abstract
At present,many of the transmission antennas used by many medium wave broadcasting stations in our province are still cable tower antennas built in the 1970s and 1980s,with long service life and significant safety hazards.At the same time,some stations are facing relocation.In order to save land resources and improve the comprehensive utilization rate of transmission antennas,it is planned to upgrade and transform some mast-type cable antennas into self-supporting tower antennas.This article focuses on analyzing the technical factors and overall planning that need to be considered in the selection and distribution of antenna types and positioning when planning the replacement and transformation of transmission antennas for medium wave relay stations with multiple working frequencies,complex geographical environments in the transmission site area,and multiple transmission antennas.Other medium wave stations can also refer to it when transforming and replacing transmission antennas.
关键词
中波发射天线/多频共塔规划/天线选型布局/多功能应用Key words
Medium wave transmitting antenna/Multi-frequency tower planning/Antenna selection layout/Multifunctional application引用本文复制引用
出版年
2024
NETL
NSTL
万方数据