%0 Journal Article %T HF radio path modeling by waveguide approach %A Ponomarchuk, S.N. %A Kurkin, V.I. %A Ilyin, N.V. %A Penzin, M.S. %K radio wave propagation, waveguide approach, radio path forecast, ionogram, radio channel diagnostics %J Solar-Terrestrial Physics %D 2024 %N 10 %P 8 %I INFRA-M Academic Publishing LLC.