Calculation of frequency and spatial separation regulations for fixed service receiving stations and radio facilities of other services

In the process of transmission of fixed service radio links it is important to provide the required frequency and spatial separation between fixed service receiving stations and radio facilities of other services operating in the same frequency band as fixed service stations. According to radio regulations, the frequency bands assigned to the fixed service are in most cases also used by the land mobile service, the radio broadcasting service, radiolocation service, satellite communication service and other services. Therefore it is necessary to develop and employ frequency and spatial separation regulations in order to economically and efficiently utilize the frequency spectrum. This paper describes a method for the calculation of frequency and spatial separation regulations for fixed service receiving stations and radio facilities of other services that interfere with receiving stations of radio relay links.