Normalized site attenuation measurement of a semi-anechoic chamber in multiple test zones

In this paper, normalized site attenuation measurement process and results in a semi-anechoic chamber, recently constructed at Otokar in Turkey for EMC measurement of military and commercial vehicles, are presented. Measurements are performed for both horizontal and vertical polarizations with two different antenna separations at multiple positions in the chamber. Finally, the results are compared to theoretical site attenuation values to validate the chamber quality. It is proven that, in all of the test zones located at diverse locations in the test chamber, the deviations from theoretical values are within the limits defined by the standards.