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随着我国“和谐社会建设”与广播电视“村村通”工程的推进,调频广播经过几十年的发展,已形成较大规模。我县乡镇村是利用有线电视调频广播共缆传输和无线调频网络来实现农村广播的全覆盖。数码控制调频接收设备是调频广播的终端,在乡镇村及农户有着一定的数量,它们分为调频音箱和调频收扩机,其工作原理基本相同,只是输出功率不同,本文介绍了其工作原理和维修方法。
With the advancement of “building a harmonious society” and “radio and television” “village through” projects in our country, the FM broadcasting has formed a large scale after decades of development. My county township village is the use of cable TV FM radio cable transmission and wireless FM network to achieve rural radio coverage. The digital control FM receiving equipment is the terminal of FM broadcasting. It has a certain number in township villages and farmer households. They are divided into FM loudspeaker and FM receiving and expanding machine. The working principle is basically the same except that the output power is different. This article introduces its working principle and Maintenance methods.