The paper concerns the comparison between reverberation chamber measurements (RC) and anechoic chamber (AC) measurements: in particular, the case of an immunity test is considered. A two-wire transmission line is adopted as a device under test (DUT), and the current induced on the line by the external field is monitored to construct a possible susceptibility profile. Both the averaged current, over the stirrer rotation, and the maximum current are considered to show how robust is the RC measurement against the positioning and the orientation of the DUT inside the chamber. As expected from theory, the maximum value is related to the average one by means of the number of the independent position of the stirrer. Finally, it is highlighted how in RC it is possible to lost some worst case situations, related to a particular incident field polarization and incoming direction, and the underestimation of the induced current depends upon the chosen number of the stirrer positions
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