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我台603kHz的播出属于低频率,使用矮天线发射。现有匹配网络存在通频带过窄,边带反射过大的现象,而且还有同发射场邻频干扰问题,发射机运行常因反射过大保护,技术指标差,我们通过对网络特性分析,邻频干扰的检测,不断改进匹配网络,优选网络进行改造,达到满足网络功能需要,带宽和边带反射过大有改善,设备工作稳定,技术指标达标。
My 603kHz broadcast belongs to the low frequency, the use of short antenna launch. The existing matching networks have the phenomenon of too narrow passband and excessive reflection of the sidebands, as well as the problem of adjacent frequency interference with the transmitting site. Transmitters often operate with excessive protection due to reflection and poor technical indicators. By analyzing network characteristics, Adjacent channel interference detection, and constantly improve the matching network, optimizing the network for transformation, to meet the needs of network functions, bandwidth and sideband reflection is greatly improved, the device is stable, the technical indicators compliance.