In RF receivers nonlinearities are inherent to analog processing. This is the result of strong signals presence close to the bandwidth of the signal of interest, or a power excess of this signal. Both cases greatly deteriorate the receiver bit-error-rate. Methods to compensate for nonlinearities consist in equalizing resulting intermodulation terms by predistortion or a subtraction mechanism. In this article, we propose a proof of concept for a novel technique to limit the harmful effects of nonlinearities. It consists in making a measure of intermodulation terms power, thanks to a cyclostationary sensing mechanism. And then, to dynamically adapt receivers parameters to make it works in a linear regime.We detail principles of that method and develop the theoretical analysis of detection. Thanks to simulations, we show that this method is reliable and allows a nonlinearity detection 16dB below the compression point. This work was conducted in the scope of high end radio such as professional mobile radios (PMR) receiver.