多工器技术在调频广播发射系统中的应用与研究

Application Research of Multiplexer Technology in Frequency Modulation Broadcast Transmission System

多工器技术将各套调频广播节目射频信号变成组合信号,经由一套天馈线播出,不仅能够同时播出几套节目,使信号之间互不干扰,也能够简化天线发射系统,减轻铁塔载重负荷,节省铁塔空间,减少天馈线,降低了工作设备的投入、运行、维护费用。为充分发挥多工器技术优势,从多工器及多工器技术的概念、分类入手,详细论述调频多工器的工作原理、相关技术应用关键点以及相应的维护措施等,探讨多工器在广播电视调频发射系统中的运用方式,旨在提升多工器技术应用水平,推动我国广播电视行业稳定发展。

The multiplexer technology converts the radio frequency signals of each frequency modulation radio program into a combined signal,which is then broadcast through a set of antenna feeders,not only can several programs be broadcast simultaneously,so that the signals do not interfere with each other,it can also simplify the antenna transmitting system,reduce the heavy load of the tower,save the tower space,reduce the antenna feeder,and reduce the input,operation and maintenance costs of the working equipment.In order to give full play to the technical advantages of the multiplexer,starting from the concept and classification of the multiplexer and the technology of the multiplexer,the working principle of the frequency modulation multiplexer,the key points of the related technical application and the corresponding maintenance measures are discussed in detail,this paper discusses the application of multiplexer in frequency modulation transmission system of radio and television,aiming at improving the application level of multiplexer technology and promoting the stable development of radio and television industry in our country.