digital Receivers

Consumer Receivers

The DRM standard for long-range transmitters was published in 2003, a commercial receiver module was developed in 2005, and consumer receivers became available in quantity from 2007. The market is thus still limited to only a dozen or so models, in a situation similar to the quiet on the DAB market ten years ago. The latest generation of receivers have colour graphics displays, and can exploit virtually all the features of DRM.

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PC and Car Radios

Car radios have good reception properties on long, medium and short waves, and are an excellent alternative to expensive communications receivers, even in boats. Use only whip antennas from well reputed manufacturers, and supply separately from the +12 V connector for automatic antennas on the radio; not through the antenna cable. Ground both radio and antenna securely to chassis, and run the antenna and supply cables far from other installations.

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Converters and Kits

It is quite easy to modify an AM radio to a DRM front end. Web shops offer ready-made converter modules at just 25 euros, and it is also possible to acquire a complete DRM front end for less than 100 euros. PC software may be found on the Internet to decode the converter signal to audio, radiotext, graphics, photos and data. The software will automatically update the worldwide DRM schedules so that stations may be selected on a list.

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Software Solutions

Some of the DRM development was performed by universities, and the research has inspired a wide variety of high quality non-commercial software. In particular software for identifying, receiving, decoding, analysing and logging DRM stations are of interest for ordinary listeners. For professional use, such non-commercial software can encode and modulate DRM signals, and log field strength with GPS position from a driving car.

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