论文部分内容阅读
全桥式广播汇接机是农村有线广播专线汇接设备。利用这种设备能合理地匹配阻抗,将许多线路汇接在一起组成一个四通八达的传输网络。这样,县广播站在广播专线上利用载波
Full bridge broadcast tandem machine is rural cable broadcasting tandem equipment. Using this device can reasonably match the impedance, the many lines together to form a transmission network extending in all directions. In this way, the county radio station in the leased line carrier