Abstract
The small aperture antennas are widely used to receive broadcasting satellite waves. The smaller aperture antenna is influenced by scintillation. Ku band scintillation effects can be produced in both the rainfall factor and in the troposphere. We wish to report on several findings resulting from our investigation of the level fluctuation of scintillation over a long period of time. This paper discusses cumulative probability distribution of scintillation based on our observed data.