ITALSAT propagation experiment at 18.7, 39.6 and 49.5 GHz at Spino D'Adda: three years of CPA statistics

The ITALSAT propagation experiment, started in early 1991, allows an extensive program of measurements at 18.7, 39.6, and 49.5 GHz. This paper reports the results obtained so far from copolar signal measurements carried out at the Earth station of Spine d'Adda from 1993 to 1995. Statistics of rain and total attenuation and frequency scaling of total attenuation are presented and commented on in the light of ITU-R predictions.