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.