  The influence of random irregularities of electron density on quasi-thermal
noise spectra in plasma is considered in the paper. Quasi-thermal noise
spectrum of plasma in state near the thermal equilibrium is determined by
effective dielectric constant tensor. Presence of random irregularities change
dispersion law in plasma what cause the change in the shape of quasi-thermal
noise spectrum. Numerical estimation of noise spectra are fulfilled for both
conditions of ionospheric and solar wind plasma.
