The system is a full-digital and fully IP monitoring system, monitoring DTMB, analog open-circuit television, FM radio, AM radio, CMMB and all open radio signals, monitoring the status of transmitter and remote automatic control, and monitoring the dynamic environment of the engine room and other indicators. The monitoring site is connected to the central computer room at the upper level through the broadcast network, the Internet or 4G/3G network, and forms a network monitoring system with a center and a front end.