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江苏省广播电视总台新建广播发射中心肩负着6套中波频率的播出任务,安全播出是我们工作的第一目标。为了克服以往发射系统同轴开关作为系统单一节点,一旦出现故障需要更换而造成长时间停播的问题,我们研制了一种具有多模式切换功能的天馈切换系统。实现了每一套播出频率主、备发射机与天线和假负载、主用调配网络与备份调配网络、主用天线与备份天线的切换。同时具备远程遥控、电动、手动切换功能,并且具有手动跨接功能,极大的提高了系统的安全播出保障能力。
The new radio and television broadcasting center of Jiangsu Radio and Television Broadcasting Center shoulders the task of broadcasting six sets of medium-wave frequencies. The safe broadcasting is the first goal of our work. In order to overcome the previous launch system coaxial switch system as a single node, in the event of failure need to be replaced for a long time to stop the problem, we have developed a multi-mode switching antenna switching system. Realize each set of broadcast frequency master, backup transmitter and antenna and false load, the main deployment network and backup deployment network, the main antenna and backup antenna switching. At the same time with remote control, electric, manual switching function, and has a manual jumper function, which greatly improved the system security broadcast security capabilities.