  By counting the number of pass/fail occurrences of a DUT (Device under Test)
in the stirring process in a reverberation chamber (RC), the threshold electric
field (E-field) level can be well estimated without tuning the input power and
repeating the whole testing many times. The Monte-Carlo method is used to
verify the results. Estimated values and uncertainties are given for Rayleigh
distributed fields and for Rice distributed fields with different K-factors.
