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随着电视广播的日益普及，电视发射台的数量不断增加，发射功率也在不断扩大，使已很拥挤的电视频段内同频干扰日趋严重，不仅存在于一些县级发射台之间，甚至省际间的干扰也时有发生。本文介绍了安徽省广播电视科研所研究开发的精密偏置／同步电视广播激励器在这方面的试验，试验结果表明采用这一设备可以有效地抑制同频干扰，从而扩大了同频台的有效覆盖率。
With the increasing popularity of television broadcasting, the number of television transmitting stations has been continuously increasing and the transmitting power has also been constantly expanding. As a result, co-channel interference has become more and more serious in the already crowded television frequency band, not only between some county transmitting stations, Inter-occasionally disturbances also occur. This paper introduces the experiment of the precision offset / synchronous TV broadcasting exciter developed by Anhui Radio and Television Research Institute. The experimental results show that this device can effectively suppress the same-frequency interference and thus expand the effective frequency of the same frequency Coverage.