%0 Journal Article %T Diagnostics of HF radio channel: based on data from backscatter ionospheric sounding by continuous chirp signal %A Ponomarchuk, S.N. %A Grozov, V.P. %A Kotovich, G.V. %A Kurkin, V.I. %A Penzin, M.S. %K ionosphere, ionogram, radio wave propagation, backscatter ionosphere sounding %J Solnechno-Zemnaya Fizika %D 2018 %N 4 %P 7 %I INFRA-M Academic Publishing LLC.