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Satellite signals are effected by frequency scintillations in the same manner as radio star emissions. Therefore, the Doppler shift of such signals suffers fluctuations. These alterations are a function of the variations of the electron density distribution along the radio-ray path under observation. The number and the magnitude of these scintillations are used to measure the roughness of the ionosphere (formation of a scintillation index). The paper deals with the alteration of the established scintillation index during a time interval in August and September, 1958, i.e., before, during, and after the well known Argus experiments. The observations indicate that no long-living ionospheric inhomogeneities were produced within the zones of the ionosphere which could be checked from our ground station.