Design and Application of 12-Port Multiplexer in FM Broadcasting
With the development and expansion of cities,the FM transmission tasks undertaken by Dalian Radio and Television Transmission Station have increased from 4 sets to 12 sets.To save space on the tower and improve the transmission effect of new FM programs,Dalian Radio and Television Transmission Station have independently developed a 12-port multiplexer to meet the usage needs of transmitting 12 FM programs through a high gain antenna.By rationalizing the design of filters and 3dB couplers for the 12-port multiplexer,the 12-port multiplexer meets the design specifications requirements.At the same time,the design and application of a sliding base have played a convenient role in the installation and debugging of the multiplexer.
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