Design And Implementation Of Automatic Transmission System For FM Broadcasting

The rapid development of Internet technology and integrated electronic technology has brought profound changes to the management and optimization of FM broadcasting systems.At the beginning of the development of FM broadcasting industry,FM radio transmission system is large in size,low in frequency,high in operation and maintenance funds and human labor costs.Today,FM broadcasting system is getting smaller and smaller,frequency is gradually increasing,equipment performance parameters are getting higher and higher,and operation Maintenance funds and costs are gradually decreasing.In the face of the various FM radio transmission system components and accessory products provided by different companies in the market,how to quickly set up an automatic FM radio transmission system for users' needs is worthy of study.This paper optimizes the design of a FM radio transmission system based on R&S's THU9/THV9 series products by investigating the latest research progress and usage of FM radio transmission systems at Broadcasting stations.The FM broadcast transmitting system adopts the N 1 configuration structure,that is,the N main transmitter and one standby transmitter form a transmitting system.When one of the main transmitters fails,the transmitter controller and the backup controller automatically switch to the standby.The transmitter keeps the system in continuous operation,ensuring that broadcast transmission tasks are not affected.The system consists of exciters,RF power amplifiers,transmitter system controllers,redundant controllers,RF switches,refrigeration systems and other components.Each component uses R&S's products to achieve solution design for practical application needs.In addition,the system is compatible with a variety of video and audio input formats,enabling a variety of FM radio transmission tasks.After completing the hardware selection of the FM broadcast transmitting system and the N 1 system,the operating user interface of the system is further designed and developed.The user interface of the system is simple,and the user operation interface provides all the parameter setting entries of the broadcast transmitting system and the monitoring status display of the system.After testing and verification,the user interface supports LAN operation and remote user operation,so that the user can not only operate in the computer room,but also operate the broadcast transmission system remotely,such as the office,and realize real-time effective monitoring to meet the requirements of automatic operation and management.