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EBU TECHNICAL
Local DAB broadcasting
WorldDMB General AssemblyWorldDMB General Assembly
Belfast - 27Belfast - 27thth
October 2010October 2010
Mathias Coinchon
EBU TECHNICAL
European Broadcasting Union
EBU TECHNICAL - your reference in media technology and innovation
Digital radio,
far too complex/costly
for small radios
or experimenters ?
EBU TECHNICAL - your reference in media technology and innovation
It may not be the case
anymore...
(since the democratisation of
software defined radio)
EBU TECHNICAL - your reference in media technology and innovation
Software defined radio
EBU TECHNICAL - your reference in media technology and innovation
Traditional approach of radio transmission/reception
 Specific dedicated hardware
 Limited flexibility
 Few possibilities of evolution
EBU TECHNICAL - your reference in media technology and innovation
Software Defined Radio (SDR) Principle
 Generic hardware
– « Like a soundcard » but for radio waves
 Software (de-)modulation
– can run on PC
⇒high flexibility, limited by CPU/Interface
Antenna
EBU TECHNICAL - your reference in media technology and innovation
Democratisation of Software Defined Radio
 Gnuradio: open software radio blocks
– The « Lego » of Radio
 USRP: Universal Software Radio Peripheral
– Open hardware solution sold by Ettus
EBU TECHNICAL - your reference in media technology and innovation
What you can do with the USRP and a PC
 FM RDS transmission and reception
 DAB/DAB+ transmission (CRC-mmbTools)
 DRM/DRM+ transmission/reception (Spark, Dream)
 Local GSM (OpenBTS project)
 GPS receiver
 Aircraft beacon receiver
 Passive Radar
 DECT, RFID, Wifi, etc
 Anything within the limits of your imagination and
CPU
EBU TECHNICAL - your reference in media technology and innovation
DAB Software Radio
 Developed by Communication Research Center (CRC),
Canada
– Francois Lefebvre, Pascal Charest
– First public demo at IBC2006
– Presented to WorldDMB TC, Eindhoven 09/2006 (TC-372)
 CRC-DABMUX: DAB/DAB+/DMB Multiplexer
 CRC-DABMOD: DAB Mode II OFDM modulator (no SFN)
 Other tools for slideshow, CELT, DAB+, etc
 Open sourced in 2009-2010 (GPL license)
http://mmbtools.crc.ca
EBU TECHNICAL - your reference in media technology and innovation
Application: Performance at Label Suisse festival
 Live local broadcasting of 8 DAB channels
 Audio from a video projection of 8 music bands playing
 First licensed DAB transmission fully open source
Warning:
This is not
an EBU
project
EBU TECHNICAL - your reference in media technology and innovation
Application: Performance at Label Suisse festival
 DAB transmission by Maxxima
 Video projection by MXLab
More information on http://www.opendigitalradio.org
EBU TECHNICAL - your reference in media technology and innovation
Integrating open source blocks on Linux
PCM MPEG
ETI
IQUSB
EBU TECHNICAL - your reference in media technology and innovation
Application: Multiplatform & Hybrid Radio demo
 Generation of any DAB or FM RDS broadcast signals
(and also DRM, DAB slideshow)
FM+RadioDN
S
DRM Slideshow DAB+RadioDNS
DAB Slideshow
EBU TECHNICAL - your reference in media technology and innovation
Application: EBU Multiplatform hybrid demo at IBC
EBU TECHNICAL - your reference in media technology and innovation
DAB/DAB+ (and FM, DRM, streaming) in a box
EBU TECHNICAL - your reference in media technology and innovation
Application: The EBU demo at IBC 2010
 Local DAB coverage at IBC
 DAB/DAB+ live and DMB pre-recorded
 Equipment for DAB transmission:
– PC: ~800€
– Linux, gnuradio, CRC-mmbTools: 0€
– USRP + RF frontend: 1150$ (~820€)
– Amplifier 35 Watts CW, 6W OFDM: ~ 150€
– VHF Mask Filter, 6 cavities: 1300 €
– VHF 5dB 3 elements Antenna: 300€
– Small equipment: 100€
– TOTAL: ~ 3500 €
EBU TECHNICAL - your reference in media technology and innovation
Under development (Warning: not an EBU project)
 Higher power transmission for coverage of a city
 Temporary digital licence (Maxxima radio project)
600W (CW) class AB
amplifier
development
by Stan Roehrich
Maxxima.org
EBU TECHNICAL - your reference in media technology and innovation
Demo
EBU TECHNICAL - your reference in media technology and innovation
Conclusion
EBU TECHNICAL - your reference in media technology and innovation
Conclusion
 Digital radio transmission gets democratised
 This solution is EXPERIMENTAL
– And we are not selling a solution nor providing any service
 Good for experimentation, local broadcasting, etc
 Not a threat for DAB industry but an opportunity
– Open/democratised tools enable innovation (Internet example)
 All this is possible thanks to major CRC investment
in DAB software now offered as free open source
project
 Will you participate to the future enhancements ?
EBU TECHNICAL
Mathias Coinchon
coinchon@ebu.ch
+41 22 717 27 16

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Local DAB broadcasting

  • 1. EBU TECHNICAL Local DAB broadcasting WorldDMB General AssemblyWorldDMB General Assembly Belfast - 27Belfast - 27thth October 2010October 2010 Mathias Coinchon EBU TECHNICAL European Broadcasting Union
  • 2. EBU TECHNICAL - your reference in media technology and innovation Digital radio, far too complex/costly for small radios or experimenters ?
  • 3. EBU TECHNICAL - your reference in media technology and innovation It may not be the case anymore... (since the democratisation of software defined radio)
  • 4. EBU TECHNICAL - your reference in media technology and innovation Software defined radio
  • 5. EBU TECHNICAL - your reference in media technology and innovation Traditional approach of radio transmission/reception  Specific dedicated hardware  Limited flexibility  Few possibilities of evolution
  • 6. EBU TECHNICAL - your reference in media technology and innovation Software Defined Radio (SDR) Principle  Generic hardware – « Like a soundcard » but for radio waves  Software (de-)modulation – can run on PC ⇒high flexibility, limited by CPU/Interface Antenna
  • 7. EBU TECHNICAL - your reference in media technology and innovation Democratisation of Software Defined Radio  Gnuradio: open software radio blocks – The « Lego » of Radio  USRP: Universal Software Radio Peripheral – Open hardware solution sold by Ettus
  • 8. EBU TECHNICAL - your reference in media technology and innovation What you can do with the USRP and a PC  FM RDS transmission and reception  DAB/DAB+ transmission (CRC-mmbTools)  DRM/DRM+ transmission/reception (Spark, Dream)  Local GSM (OpenBTS project)  GPS receiver  Aircraft beacon receiver  Passive Radar  DECT, RFID, Wifi, etc  Anything within the limits of your imagination and CPU
  • 9. EBU TECHNICAL - your reference in media technology and innovation DAB Software Radio  Developed by Communication Research Center (CRC), Canada – Francois Lefebvre, Pascal Charest – First public demo at IBC2006 – Presented to WorldDMB TC, Eindhoven 09/2006 (TC-372)  CRC-DABMUX: DAB/DAB+/DMB Multiplexer  CRC-DABMOD: DAB Mode II OFDM modulator (no SFN)  Other tools for slideshow, CELT, DAB+, etc  Open sourced in 2009-2010 (GPL license) http://mmbtools.crc.ca
  • 10. EBU TECHNICAL - your reference in media technology and innovation Application: Performance at Label Suisse festival  Live local broadcasting of 8 DAB channels  Audio from a video projection of 8 music bands playing  First licensed DAB transmission fully open source Warning: This is not an EBU project
  • 11. EBU TECHNICAL - your reference in media technology and innovation Application: Performance at Label Suisse festival  DAB transmission by Maxxima  Video projection by MXLab More information on http://www.opendigitalradio.org
  • 12. EBU TECHNICAL - your reference in media technology and innovation Integrating open source blocks on Linux PCM MPEG ETI IQUSB
  • 13. EBU TECHNICAL - your reference in media technology and innovation Application: Multiplatform & Hybrid Radio demo  Generation of any DAB or FM RDS broadcast signals (and also DRM, DAB slideshow) FM+RadioDN S DRM Slideshow DAB+RadioDNS DAB Slideshow
  • 14. EBU TECHNICAL - your reference in media technology and innovation Application: EBU Multiplatform hybrid demo at IBC
  • 15. EBU TECHNICAL - your reference in media technology and innovation DAB/DAB+ (and FM, DRM, streaming) in a box
  • 16. EBU TECHNICAL - your reference in media technology and innovation Application: The EBU demo at IBC 2010  Local DAB coverage at IBC  DAB/DAB+ live and DMB pre-recorded  Equipment for DAB transmission: – PC: ~800€ – Linux, gnuradio, CRC-mmbTools: 0€ – USRP + RF frontend: 1150$ (~820€) – Amplifier 35 Watts CW, 6W OFDM: ~ 150€ – VHF Mask Filter, 6 cavities: 1300 € – VHF 5dB 3 elements Antenna: 300€ – Small equipment: 100€ – TOTAL: ~ 3500 €
  • 17. EBU TECHNICAL - your reference in media technology and innovation Under development (Warning: not an EBU project)  Higher power transmission for coverage of a city  Temporary digital licence (Maxxima radio project) 600W (CW) class AB amplifier development by Stan Roehrich Maxxima.org
  • 18. EBU TECHNICAL - your reference in media technology and innovation Demo
  • 19. EBU TECHNICAL - your reference in media technology and innovation Conclusion
  • 20. EBU TECHNICAL - your reference in media technology and innovation Conclusion  Digital radio transmission gets democratised  This solution is EXPERIMENTAL – And we are not selling a solution nor providing any service  Good for experimentation, local broadcasting, etc  Not a threat for DAB industry but an opportunity – Open/democratised tools enable innovation (Internet example)  All this is possible thanks to major CRC investment in DAB software now offered as free open source project  Will you participate to the future enhancements ?