Publishing house Radiotekhnika

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Variations of amplitude-phase responces of HF radiowaves on slightly tilted tracks, accompanied heating of ionosphere with powerful periodic radio emission and passage through the solar terminator


K. P. Garmash, S. G. Leus, S. V. Panasenko, L. F. Chernogor

Observations of temporal variations in the spectra of Doppler shift in 3,2-MHz and 4,2-MHz radio waves reflected from the ionosphere are presented. The diurnal variation of such observations made around an autumn equinox has been analyzed. Quasi-periodic and aperiodic processes associated with the solar terminator and with ionospheric heating by high-power HF periodic transmissions from the SURA facility have been detected

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