RF spectrum congestion: Resolving an interference case

Radio frequency spectrum monitoring and measurement is an important part of spectrum management that secures its safe and efficient use. In this paper we discuss the effects of insatiable hunger for RF spectrum resource especially in certain frequency bands. Such spectrum congestion causes a number of interference cases that has to be solved. We report on a case of harmful interference that obstructed the normal operation of a radio link used by a mobile phone operator. We describe our investigation, search for the source of the interference and solution of the problem. Both, the legal and the technical aspects of the interference problem are considered.