The Digital Radio Mondiale (DRM) technology for broadcast at higher frequencies was successfully trialled in Paris. The DRM+ signal was broadcast on 64.5 MHz from Tour Pleyel, North of Paris, and was received at the office of Conseil Supérieur de l’Audiovisuel (CSA) which regulates the various electronic media in France. The CSA is located 10 km away from the transmitter but the signal strength was good with only 400 watts of radiating power.
This positions DRM+ as a perfect solution for stations not able to join multiplexes, even in places where the FM band is full.
DRM+ extends the DRM standard which is the open, universal, digital radio standard for broadcast bands, to frequencies up to 174MHz including the FM spectrum from 87.5MHz to 108 MHz. DRM+ offers a range of features and benefits for radio stations’ around the world and can lead to a cost-effective migration to digital. It was first successfully tested on the FM Band in Kaiserslautern, Germany last year, but this is the first time DRM+ has been used in Band 1.
DRM+ has distinct advantages over conventional FM, it needs lower transmission power for same coverage, opens up new audio possibilities like 5.1 surround sound, increases spectrum efficiency and offers electronic data services such as programme guide and supporting information.