The subject of Digital Radio Mondiale (DRM) has been covered in RadCom on a number of occasions. Primarily, it was developed as a replacement for amplitude-modulated transmissions on longwave, medium-wave and short-wave. The BBC and RTL Group (Luxembourg) are big supporters of DRM and, at the recent Internationale Funkausstellung (International Radio Exhibition) in Berlin, new DRM receivers from Morphy Richards and Roberts Radio were exhibited. Dutch manufacturer Sangean also demonstrated a receiver for digital short-wave. These receivers could be in the shops by the end of 2005. At the show, Peter Senger of Deutsche Welle outlined an aggressive schedule for phasing out AM broadcasts. When a 'critical mass' of listeners has been reached, analogue short-wave will be "shut down very quickly," he said.
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