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在无线电发射中心,由于天线场地的限制以及经济的目的,往往需要采用二部发射机共用一付天线的技术措施.这里我们介绍一个在电路上经长期使用,证明效果良好的大功率发射机使用双机三个频率共用一付天线的技术措施,以供读者参考.在许多参考资料上已有对双机二个频率和双机四个频率共用一付天线多工制技术措施的介绍,但缺少对双机三个频率应用的介绍,通过实验比较,证明双机三个频率的多工技
In the radio transmission center, technical measures of sharing a pair of antennas by two transmitters are often required due to antenna field limitations and economic purposes. Here we introduce a high-power transmitter that has been used for a long time on the circuit to prove effective Two pairs of three frequencies share the same technical measures for the antenna for your reference.Many references have been two pairs of single-frequency and dual-frequency four-frequency antenna duplexing a common technical measures introduced, but The lack of introduction of the three frequency double machine, through experimental comparison to prove that the three multi-frequency technology