With the development and technological progress of broadcasting and television, synchronous broadcasting is more and more widely used. Illegal wireless transmitters do not transmit according to the prescribed power. As a result, the same frequency and interference of broadcasting and television signals become more and more serious. Especially in the near-field area of alpine transmitters, they can often receive the same frequency or interference signals from other places. If the transmitter fails, the synchronous transmission from other places will be monitored. Broadcasting signal, which can not judge the fault, is very easy to cause safe broadcasting accidents. In this paper, several monitoring methods of radio signals are analyzed and studied, and the best monitoring method is finally found. Taking the improved FM broadcasting monitoring system of Huaibei Transmitter as an example, the problems of co-frequency interference are solved, and the ideas and methods to solve the problems are provided for the stations with similar problems.
Journal of Huaibei Professional and Technical College