摘要
中波广播的覆盖。中波广播主要是地波传播,是垂直极化波,因此大都采用垂直天线。中波天线大部分采用铁塔天线,非特殊地形或特别要求的服务区外,均采用不定向天线。
Mid-wave radio is mostly ground-wave transmission, as well as a peak polarized wave.As a result we oftenusepeakantenna.While mid-wave antenna is mostly iron tower antenna,we do not use directional antenna except that we need special service in special area.
出处
《内蒙古广播与电视技术》
2003年第3期20-22,5-6,共3页
Inner Mongolia Radio & TV Broadcast Engineering
