Electromagnetic Environment Test System Performance Test Specification

Electromagnetic environment in the international electrotechnical commission (IEC50(161)-1990electromagnetic compatibility terms, China’s GB/T4365-1995reference) is defined as in the lectromagnetic environment refers to the sum of all the electromagnetic phenomenon exists in a given place。electromagnetic environment of space, time and frequency spectrum of three elements。 Radio management and technical personnel proposed radio stations surrounding electromagnetic environment test, electromagnetic compatibility analysis and calculation according to the test result, the frequency used and data set is put forward. In the radio station set up before use electromagnetic environment test is one of the effective methods to solve the mutual interference between radio stations. Therefore, electromagnetic environment test is technical support for scientific and standardized management of radio stations. Radio management departments at different levels to electromagnetic environment test of radio stations, which can avoid caused heavy loss of the unit using the blind set radio stations, and can realize through the analysis of the electromagnetic compatibility of different business frequency sharing, so as to improve the effective utilization of the radio spectrum resources, provide a scientific basis for rational assignment of frequency。In recent years, radio management departments at different levels are conducted electromagnetic environment test, so the corresponding configuration of the electromagnetic environment test system. Sell this kind of system model on the market at present is various, performance level. Country attaches great importance to the development and use of electromagnetic environment test system, for the national institute for radio spectrum management organization development and production of the spectrum a NSMI-0118automatic monitoring system. The system reliable operation, stable running, higher technical index, effective solves the radio regulatory agencies at all levels of requirements. But with the system in all kinds of high temperature, cold over a long period of time outdoors under the working conditions, system performance will be changed accordingly. In order to ensure the quality of the system test, we need this system or the procurement on the system performance test, calibration or verification, it has certain difficulties for radio and technical personnel.In this case, this paper mainly starts with the electromagnetic environment test purpose and meaning, through to the commonly used electromagnetic environment test system module is introduced, and related core on influencing factors of system performance index is expounded in an all-round way. Through typical microwave station electromagnetic environment test task as an example, the feasibility of system test and accuracy. Through the research and summary, finally draws a set of electromagnetic environment test system performance test methods. This specification for electromagnetic environment test personnel has certain guidance and reference.