DRM Decoder/Demodulator Plug-in for WiNRADiO G303 and G305 Series Receivers
This DRM Demodulator/Decoder Plug-in makes it possible to receive and listen to DRM transmissions on a WiNRADiO G303 or G305 Series receiver. DRM (Digital Radio Mondiale) is a non-proprietary digital system for short-wave, medium-wave and long-wave bands which offers a dramatic improvement over conventional analogue AM transmissions with its near-FM quality of sound.
For this project, WiNRADiO joined forces with VT Merlin Communications to develop and provide a state-of-the-art DRM decoder and demodulator for WiNRADiO receivers, which have now become fully integrated DRM-capable receivers, the first of its kind, pioneering the DRM technology for the benefit of the radio enthusiast and professional community.
The DRM Demodulator/Decoder is an XRS Plug-in which, upon installation, can be selected from the receiver's Demodulators top bar menu, as simply another alternative demodulator. The DRM Demodulator/Decoder then appears fully integrated within the receiver front panel:
The DRM Demodulator/Decoder panel consists of the following main parts:
Spectrum scope, which shows the real-time spectrum of the received signal
Intermediate Frequency Samples
Those who already have a WiNRADiO DRM Decoder/Demodulator might benefit from the following DRM samples for initial testing and familiarization with this technology. These are live recordings of DRM broadcasts of Radio Luxembourg and Radio Deutsche Welle, done using the "IF" (intermediate frequency) recording function of the WiNRADiO DRM Decoder/Demodulator. These recordings can be played back using the same demodulator, simulating reception of a DRM signal. To play these samples, download and unzip the following ZIP files (each is approximately 5 MB long) and place the resulting ".if.wav" files into the ../Program files/WiNRADiO/Audio files folder. The files will then appear in the Playlist. Select the desired file and press the Play button. During the playback you will see the spectrum of the recorded signal in the real-time spectrum analyzer, exactly as if a live signal was received. (Note that it takes several seconds of synchronization and prebuffering before the sound appears.)
Minimum system requirements
IBM PC AT compatible, 500MHz Pentium CPU, 64MB RAM, 10MB free HDD space
* Sound card must support full-duplex at 48 kHz sampling rate, without AGC (recommended model Sound Blaster Live! or similar).