A calculation module for electromagnetic field calculation of an energy stream density in arbitrary points is developed.  This module is counting from any quantity emitters. Orientation properties of antennas are taken into account by the emitters. The module is calculated for an orientation diagram of various type antennas. The module is allows counting various types of emitters in horizontal and vertical planes. The module is realized as fully operational program. This application deals with the algorithm counting energy stream density with vector maps. This program is making calculations restriction areas for building and sanitary-protective areas for mobile companies and TV and radio stations.

Keywords: Calculation module, electromagnetic irradiation, energy stream density, aperture sources, emitters, restriction areas for building, sanitary-protective areas