The goal of the work presented in this paper is to demonstrate that the electric field inside a Mode Stirred Reverberation Chamber (MSRC) can be evaluated with short monopoles, mounted on the walls of the MSRC. Indeed, the electric (E) field amplitude inside a MSRC can be deduced from power measurement realized with monopole if one takes into account the statistical laws followed by the power and the components of the E field. The results obtained with this method are compared to measurements performed with conventional methods using E field probes (direct measurement) or matched antennas (indirect measurement) installed inside the working volume. The good agreement of these comparisons validates the proposed method.