The invention discloses a vehicle-mounted radio monitoring direction-finding
system. The vehicle-mounted radio monitoring direction-finding
system comprises a short-wave monitoring antenna, an ultrashort-wave monitoring direction-finding antenna, a
microwave monitoring direction-finding antenna, a short-wave monitoring
receiver, an ultrashort-wave monitoring direction-finding
receiver, a
microwave monitoring direction-finding
receiver, a network interchanger and an operating terminal, wherein the
radio frequency output end of the short-wave monitoring antenna, the
radio frequency output end of the ultrashort-wave monitoring direction-finding antenna and the
radio frequency output end of the
microwave monitoring direction-finding antenna are connected with the radio frequency input end of the short-wave monitoring receiver, the radio frequency input end of the ultrashort-wave monitoring direction-finding receiver and the radio frequency input end of the microwave monitoring direction-finding receiver, the control output end and the correction output end of the ultrashort-wave monitoring direction-finding receiver are connected with the control input end and the correction input end of the ultrashort-wave monitoring direction-finding antenna, and the short-wave monitoring receiver, the ultrashort-wave monitoring direction-finding receiver and the microwave monitoring direction-finding receiver are connected with the operating terminal through the network interchanger so that
data exchange can be conducted. By the adoption of the vehicle-mounted radio monitoring direction-finding
system, monitoring direction-finding of signals in the
frequency band ranging from 2 M to 40 GHz can be achieved.