Description: The model of surface of the starting setting 5P85D of zenithal rocket complex S300PS is developed. Basic correlations for the calculation of effective surface of dispersion of the starting setting 5P85D are resulted. The calculations of radio-location descriptions of the starting setting of 5P85D are conducted, in particular, coherent, non-coherent, middle and median effective surface of dispersion, histogram of peak multiplier of the reflected signal for horizontal and vertical polarization. Conclusions are done in relation to drawing on the got results.
Keywords: effective surface of dispersion, ellipsoid, polarization