System and method for protecting against interference generated by FM signals in receiving band III signals

摘要

The invention relates to a system for protecting against the interference generated by signals (6) in receiving a listening signal (16) belonging to the band III frequency domain, comprising a band III tuner (14) for receiving at least one listening signal (16) transmitted in the band III frequency domain, an FM tuner (4) for scanning an FM frequency band in order to identify signals (6) in the FM frequency band, and a rejection module (20) for preventing an interval of frequencies from switching over to the band III tuner. The system comprises a processing module (8) for analysing the signals (6) according to the properties of the listening signal (16) so as to identify the reception of at least one interference signal (6) capable of interfering with the listening signal (16), the processing module (8) being suitable for controlling the rejection module (20) in order to prevent an interval of frequencies from switching over to the band III tuner (14) when the reception of at least one interference signal (6) is identified.