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Open digital broadcasting techniques based on software defined radio. Digital radio transmission and development must also become democratized for experimenters and small broadcasters. Opendigitalradio.org wiki is about creating a community for documenting and exchanging experimentations and gather information about existing small-scale DAB projects. Please read Introduction for more information. Opendigitalradio is a non-profit association based in Switzerland (page in french), offering also a broadcast infrastructure for temporary radio stations.

This wiki is also the home of the ODR-mmbTools, the continuation of the CRC-mmbTools from CRC. Please see Introduction on DAB/DAB+

Have a look at the guide

Older news

• Introduction on DAB/DAB+
• DAB/DAB+ encoding: MPEG Layer II or HE-AAC encoding, slideshow encoding
• DAB multiplexing: putting together DAB/DAB+/DMB programs
• DAB modulation: create the baseband COFDM modulation
• DAB hardware: software radio peripheral, filtering, amplification

The ODR-mmbTools are used in several real-world 24/7 broadcasts, as shown on http://www.opendigitalradio.org/software A recipe for a low cost DAB transmission chain for local broadcasts based on the ODR-mmbTools is the RaspDAB description.

Older presentations:

• Presentation and demonstration of the full open source DAB transmission solution at 2010 WorldDMB General Assembly in Belfast
• First licensed open dab transmission for Label Suisse Festival 17-19 September 2010 Lausanne.
• Demonstration of open source digital transmission chain at IBC, Stand 10.D21 (EBU), 10-14 September 2010
• DAB scripts examples
• Installer scripts for Debian

• DAB reception (Openmokast and others)
• DAB measurement (measurement&monitoring tools, planning tools).
• DRM/DRM+ Digital Radio Mondiale, digital radio system for AM bands (LW, MW and SW) and all VHF bands (FM band and others).
• FM RDS transmission (not really a digital system except RDS ;)
• Crazy techniques using a VGA card as radio peripheral
• Coverage planning

Please use the crc-mmbtools mailing list to reach us. Subscribe by sending an email to crc-mmbtools+subscribe@googlegroups.com Follow us on Twitter: http://twitter.com/opendigiradio to get informed, involved or for any questions. Find us also on Facebook

Email: broadcast at opendigitalradio.org