Interference Analysis And Testing Research For VHF Communication In Civil Aviation

With the rapid development of civil aviation in China,the number of airline flights has exploded,and the civil aviation radio safety issue is more important.Meanwhile,with the rapid development of economy and science and technology,the generation and development of various kinds of radio business have been promoted,besides the electromagnetic environment in the air has become more complex and worse.Especially,in-use radio equipment is under the lax supervision,and some "three noes" electronic products have been brought into the market,which has caused frequent interference in Very High Frequency(VHF)radio services of civil aviation.Air-ground communication is accompanied by noise and other signal,even,completely unable to speak.The controller and the pilot do not know each other,which maybe cause serious hidden danger to flight safety.At present,the radio interference of civil aviation in our municipality has been repeated frequently.All of the radio interference,FM stations have the highest probability of jamming the VHF business.When such interference occurs,the demand of timeliness is the first factor we pay attention to,but the scope of the investigation is wide,which made such administrative to be high cost and low-efficiency.This paper theoretically studies all kinds of interference to civil aviation radio service,especially FM stations’ influence.On the basis of theoretical research and practical work,we take FM radio stations which are distributed among the city of wulanchabu and its subordinate as monitoring objects.Carry out the actual test,analyze the rectification,test and verify the result of rectification,which shows effective.This work played a positive role in electromagnetic environment purification of the local FM and VHF civil aviation business.To some extent,the probability of such disturbances occurring from the source is reduced.It provides experience to solve the interference of VHF business of civil aviation.In the process,Local radio and television department,civil aviation,and radio management agencies communicate with each other.The promotion of the security importance of ground-to-air communications in civil aviation has been strengthened.It also exposes some problems existing inThe management of local radio and television department,so as to facilitate self-inspection and reorganization.It is of great significance to promote the standardized management of these two kinds of radio stations and create a harmonious electromagnetic environment.