Radio receiver system

A radio receiver, comprising:

• an analog tuner;
• a baseband processor to provide radio functions, wherein the baseband processor is coupled to the analog tuner;
• a memory;
• and
• a controller coupled to the analog tuner, the baseband processor and the memory, wherein the controller is configured to perform an operation, the operation includes causing the analog tuner to scan a spectral band to identify radio stations and based on a signal matrix obtained from scanning a station in the spectral band tentatively determining that the station represents a digital radio mondiale (DRM) station and storing an identification of the station in a list of possible DRM stations in the memory, wherein the list of possible DRM stations includes DRM stations and band pass noise identified as tentative DRM stations.