Narrow-band surge protector for medium-wave Digital transmitter with comprehensive monitoring system

摘要

The Surge Protector (SP) protects the medium wave transmitter damages from deterioration of the VSWR on the output transmission system including the antenna characteristics. In this paper describes the avoidance for SP operation on the antenna VSWR characteristics under the sharpness of the impedance characteristics on high frequency audio modulation. We developed the new type of narrowband detection circuit for SP system. Furthermore, we constructed the flexible comprehensive monitoring system that is able to monitor the output transmission devices with the microscopic or macroscopic conformation.