Prediction of attenuation due to rainfall on terrestrial links


  • Francesco Fedi


In this review, attention is confined to rain attenuation and to its influence on the availability of terrestrial radiocommunication systems operating at frequencies above 10 GHz. The availability objectives recently established by the Comité Consultatif International des Radiocommunications for digital systems, the information necessary, and a calculation procedure applicable for system design are examined. Various methods for predicting attenuation due to rain are compared and reviewed. Present trends for the use of frequencies above 10 GHz in terrestrial systems are illustrated, and areas in which further study is needed are indicated.