Interference measurements by power line communications over HF aeronautical systems

This paper presents results of non-intentional irradiation measurements by broadband over power line in medium voltage power line distributions (PLC/BPL) on National Air Force radio communications, operating in the same environment of PLC/BPL system, with voice and data transmission in the HF frequencies. The procedures of the ITU-T/K.60 recommendation to use in electromagnetic interference measurements was applied, but due did not present good results with power lines operating in real conditions, they are reviewed and proposed changes. The experiments were conducted in Sao Paulo and Rio Grande do Sul, Brazil, with the support of aeronautics tactical mobile communications system, in HF.