%0 Journal Article %T Methods of calculating influence of seasonality factor on propagation of radio waves in southern regions of Russia close to hydrospheric objects in ultra-high frequency range %A Pishchin, O.. %A Puzankov, D.. %A Liydkina, K.. %K radio wave propagation, seasonal features, tropospheric waveguide, drive waveguide, cellular communication systems, design, signal attenuation level, evaporation waveguide, superrefraction %J Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics %D 2022 %N %P 9 %I Astrakhan State Technical University