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在各级发射台 ,塔桅和天线系统是重要的播出设备 ,也是基础性的永久设施 ,天馈系统的好坏 ,直接影响节目的播出质量和收看、收听效果。从安装交验 ,投入运行开始 ,塔桅和天线的维护工作也就开始了。由于天馈线系统安装在高高的塔上 ,常年经受风吹、日晒、雨淋、严寒酷暑和雷电的侵袭 ,工作环境十分恶劣 ,是影响其稳定运行的自然原因 ,若维护与管理不到位 ,则难以落实“不间断、高质量、既经济、又安全”的维护方针。在电视调频发射台 ,经常是多副天线安装在一座塔上 ,节目几乎是全天候的播出 ,又使得天线的维护与检修十分困难。因此 ,应调整“重发射机、轻天线”的维护与管理模式。目前 ,不少电视调频台 ,对天线系统的维护与管理认识不足。有的台没有专业岗位设置、有的台不知道天线维护工作属于特殊工种 ,从业人员必须经高空作业的专门训练 ,因此 ,事故时有发生。正在使用中的天线系统存在这样或那样的问题 ,需要解决。为此 ,笔者就天馈线系统的一些实际问题 ,结合维护工作的实践 ,将陆续总结出自己心得 ,供同行参考
The launch pad at all levels, tower mast and antenna system is an important broadcast equipment, but also the basis of permanent facilities, the quality of the antenna system, a direct impact on the broadcast quality of the show and watch, listen to the results. From the installation of inspection, put into operation, the tower mast and antenna maintenance work began. As the antenna feeder system installed in the tower, perennial weather, sun, rain, cold and summer heat and lightning invasion, the working environment is very poor, is affecting the stable operation of natural causes, if the maintenance and management is not in place , It is difficult to implement the maintenance policy of “uninterrupted, high quality, economical and safe”. In the TV FM transmitter, often multiple antennas installed in a tower, the program broadcast almost all-weather, but also makes the antenna maintenance and overhaul is very difficult. Therefore, the maintenance and management mode of “re-transmitter and light antenna” should be adjusted. At present, many TV FM stations lack awareness of the maintenance and management of antenna systems. Some Taiwan has no professional job settings, and some Taiwan do not know that the antenna maintenance work is a special type of work, practitioners must be specialized training at high altitude, therefore, accidents have occurred. The antenna system in use has one or more problems that need to be solved. To this end, the author of the antenna feeder system some of the practical problems, combined with the practice of maintenance work, will gradually sum up their own experiences for peer reference