WiNRADiO has understood the importance of DRM from its very inception,
became involved in testing of this exciting technology and commenced
developing compatible receivers with much interest and enthusiasm.
Our premises in Melbourne, Australia, have been used to conduct long-range reception studies and measurements.
At the same time, we had also started developing and testing our new
generation of G3-series low-phase-noise receivers to ensure optimum DRM
is the world's only non-proprietary, digital system for short wave,
medium wave and long wave with the ability to use existing frequencies
and bandwidth and deliver FM-quality broadcasts across the globe. The
inaugural regular broadcast took place on June 16, 2003. However,
before this historical broadcast could have taken place, there had to
be many trials and tests of this technology.
picture shows a historical moment: In April 2002, DRM shortwave
broadcasts from Radio Netherlands are received by a WiNRADiO
experimental receiver over a distance of over 10,000 miles. (The
distance from Radio Netherlands to Melbourne is approx. 10,289 miles or
16,558 km.) The audio quality rivalled that of Melbourne's local FM
The DRM technology is very demanding, and places much emphasis on the quality of a receiver.
One such requirement is a very strict phase noise specification. Without this, it
is not possible to provide optimum decoding at large geographical distances.
This picture shows WiNRADiO executives together with representatives of
BBC and Radio Netherlands with early prototypes of the WiNRADiO
WR-G303i and WR-G303e receivers, the world's first commercially
available receivers designed specifically with DRM compatibility in
The latest DRM-capable receivers from WiNRADiO, such as the WR-G31DDC Excalibur, WR-G33DDC Excalibur Pro and WR-G35DDCi Excalibur Ultra are currently considered the best DRM implementation commercially available.