PREDICTION PROCEDURE FOR THE EVALUATION OF MICROWAVE INTERFERENCE BETWEEN STATIONS ON THE SURFACE OF THE EARTH AT FREQUENCIES ABOVE ABOUT 0.7 GHz*

considering a) that due to congestion of the radio spectrum, frequency bands must be shared between different terrestrial services, between systems in the same service and between systems in the terrestrial and Earth-space services; b) that for the satisfactory coexistence of systems sharing the same frequency bands, interference propagation prediction procedures are needed that are accurate and reliable in operation and acceptable to all parties concerned; c) that interference propagation predictions are required to meet “worst-month” performance and availability objectives; d) that prediction methods are required for application to all types of path in all areas of the world,