D.V. Ivanov, V.A. Ivanov, M.I. Ryabova, A.R. Lashchevsky

Results of research dispersive characteristics of HF radio channels in conformity with condition of the wideband radiosignals propagation by ionospheric overland communication links are presented. Methods of sounding ionospheric HF radio channels with passband 1MHz, methods of the study to efficiency the dispersion distortion correction, and filtering magnetoionic multipath and different noises influence are presented. The experiment results of studying the efficiency of correction and filtering procedures are presented.