Method for attenuating interference generated by intermodulation products

A method for attenuating interference generated by intermodulation products with respect to a multiplexed radio signal comprising a desired frequency, corresponding to the frequency of a frequency-modulated radio signal that a user desires to receive by way of a radio receiver able to receive frequency-modulated radio signals, said method comprising:

• implementing an automatic gain control having a gain setpoint configurable between a first setpoint and a second setpoint, said second setpoint being lower than said first setpoint, said automatic gain control being activated to decrease the gain of the received multiplexed radio signals when the gain of a received multiplex radio signal is higher than said gain setpoint, such that, after application of said automatic gain control, the highest gain of said received multiplexed radio signals is lower than or equal to said gain setpoint;
• configuring the automatic gain control so that the gain setpoint is equal to the first setpoint;
• implementing a detection of the presence of co-channel interference at the desired frequency;
• and
• if the co-channel interference is detected at the desired frequency, then, if the automatic gain control is active, configuring the automatic gain control so that the gain setpoint is equal to the second setpoint and, if the automatic gain control is not active, configuring the automatic gain control so that the gain setpoint is equal to the first setpoint.