During radio wave ionospheric soundings in the short-wave range, reflected signal distortions are mostly determined by the parameter $gamma, a relative amplitude-frequency characteristic slope of the ionospheric slope of the ionospheric radio channel. This paper demonstrates the possibility of using this parameter to investigate the inhomogeneous ionospheric structure. In terms of the phase screen model, there is established the association of the radio channel amplitude-frequency characteristic slope with the properties of ionospheric irregularities. On the basis of the relations obtained, the experimental data is processed. Estimates are made of inhomogeneous ionospheric structure parameters.
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