Radio physical properties of collisional plasma in gas discharge

The paper presents the research of radio physical properties of low-temperature plasma in the transi­tion region using the computer: from the state of the ionized gas to the state gas plasma. The analysis of simulative dependence proves the significant effect of electron collision frequency on radio wave propa­gation through the medium. The collision ionized low-pressure gas of discharge lamp is considered as physical model. The critical frequency for radio transparency is determined by microwave diagnostics.