2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/87672The paper describes the straightforward method of calculation of anomalous absorption of ordinary wave due to transformation into plasma wave in the upper-hybrid resonance region of magnetized plasma with random irregularities. The method is based on the general approach to calculation of scattering or transformation cross-sections in magnetized plasma. The expressions for anomalous attenuation obtained in the paper take into account the thermal motions of the particles and have a wide area of application. Numeric estimations of anomalous absorption for different conditions are carried out.HTML format, 6 figuresPlasma Physicstext