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安微省广播电视科研所研制的数字式中波同步广播激励器,于1986年11月25日在合肥通过由省内外科技专家参加的省级技术鉴度。中波同步广播是广播电影电视部制订的一项技术政策,指各中波转播台用相同的一个或几个频率,收转相同的省广播电台或中央人民广播电台的节目。实行同步广播,能提高中波广播质量、扩大广播覆盖率、节省频率资源。而高精度、高可靠性的同步激励器是确保同步广播网运行质量的关键设备。但是现有的同步激励器,由于采用分立元件组装和机械校频方式,价格较高,精度较低,易出故障,给使用维修带来不便。
The digital medium-wave synchronous broadcast exciter developed by Radio and Television Research Institute of Anwei province passed the provincial technical appraisement by the scientific and technological experts from inside and outside the province on November 25, 1986 in Hefei. China-Pakistan Synchro Broadcasting is a technical policy formulated by the Radio, Film and Television Department, which refers to programs broadcast on the same provincial radio station or the Central People’s Broadcasting Station using the same frequency or frequencies by all the China Central Television relay stations. The implementation of synchronous broadcast, can improve the quality of radio waves, expanding broadcast coverage, saving frequency resources. The high-precision, high-reliability synchronous exciter is to ensure the operation of synchronous broadcast network, the key equipment. However, the existing synchronous exciter, due to the use of discrete component assembly and mechanical frequency calibration, the higher the price, the lower the accuracy, easy to failure, to the use of maintenance inconvenience.