Design Principles and Installation and Commissioning Engineering Practice of Medium Wave Feeder Distribution Network
The function of medium wave antenna feeder matching network is to realize the matching of antenna and feeder,so as to reduce the reflection power and improve the efficiency of the transmitting system.Due to increasingly tight land resources,there is no additional space to increase the number of antennas on the medium wave transmitting station,while the number of broadcast programs and transmission power continue to grow.In order to deal with this challenge,the medium wave transmitting station generally adopts the way of dual-frequency common tower or triple-frequency common tower to meet the broadcast demand.Based on this,combined with the practical experience in the design,installation and commissioning of the double-frequency common tower of Raoping medium wave broadcasting station,the design principle and the concrete method of installation and commissioning of the double-frequency common tower are discussed in detail.
dual frequency towerdistribution networkabsorption network
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