Digital radio in the United Kingdom

From Wikipedia, the free encyclopedia

Jump to: navigation, search
A typical DAB digital radio receiver with the Digital Radio Development Bureau DAB digital radio marketing logo

In the United Kingdom, the roll-out of digital radio is proceeding since test transmissions were started by the BBC in 1990. The UK currently has the world's biggest digital radio network, with 103 transmitters, with two national DAB ensembles and forty eight local and regional DAB ensembles broadcasting over 250 commercial and 34 BBC radio stations across the UK. In the capital, London there are already more than 51 different digital stations available. In addition to DAB, radio stations are also broadcast on digital television platforms, Digital Radio Mondiale on mediumwave and shortwave frequencies as well as internet radio in the UK. Digital radio ensemble operators and stations need a broadcasting licence from the UK's media regulator Ofcom to broadcast.

Digital radio in the United Kingdom is being promoted by radio stations and the broadcasting industry on the premise that it provides a wider choice of radio stations, is easier to use, and is resistant to the interference which other broadcast media are susceptible to. However, the price paid for the extra number of stations is that the audio quality on DAB is lower than on FM. Also some areas of the country are not presently covered by DAB; the BBC says that it may not provide coverage to the final 10% of the population, and may use DRM instead.

In the UK, 32.1% of the population own a DAB digital radio set[1] and 58% of people have access to digital radio either through a radio set, television or online.[2] RAJAR, who measure radio listening figures in the UK, stated in May 2009 that 33.8% of radio listening in the UK is done through digital platforms at least once a week.[1] 21.4% of digital radio listening was to digital only stations.[3] 41% of digital radio users listen to digital radio through a television platform.[2]

Contents

[edit] Digital Audio Broadcasting

Experimental transmissions of the DAB Eureka 147 standard from the Crystal Palace transmitting station by the BBC started in 1990[4] with permanent transmissions covering London in September 1995.[5] With the expansion of its single-frequency network in the spring of 1998,[6] the BBC national ensemble was available to 65% of the UK population by 2001 and to 85% by 2004.[7]

The Broadcasting Act of 1996 allowed the introduction of national, regional and local commercial ensembles in the United Kingdom.[8]

The first national ensemble licence for DAB from the Radio Authority was advertised in 1998 and one applicant applied for the licence. The licence was awarded to the GWR Group and NTL Broadcast, who since the launch were renamed Arqiva.[9] The two companies formed the Digital One ensemble, which began broadcasting on 15 November 1999.[10] The Digital One ensemble has grown and is currently available to over 90% of the UK population.[11]

[edit] Growth and benefits of DAB in the UK

Listeners of digital television and Internet radio and owners of DAB radio share

In the United Kingdom, the uptake of DAB has increased since the launch of the BBC national DAB ensemble in 1995. Lower prices, new radio stations and marketing have increased the uptake of DAB radio in the UK.[12] Digital radios were first sold as car radios in 1997, priced around £800, with hi-fi tuners costing up to £2,000 being released two years later.[7] In 2001, Digital One invested in Frontier Silicon to produce a new processing chip which would allow cheaper portable radios to be produced. Roberts, Goodmans and in 2002, Pure Digital's award winning[13] Evoke series of radios broke the £100 price barrier, and DAB take up has increased since.[7] As the result of the increase of uptake of DAB, electrical retailer Dixons announced in 2006 that it would discontinue selling analogue radios.[14]

The BBC and other DAB broadcasters have been encouraging DAB take up by promoting a number of features which are either new or improve upon former technology in their sales literature. The benefits of DAB is that due to the use of multiplexing technology and encoding technology, broadcasters including the BBC and EMAP have been able to launch exclusive digital radio stations alongside existing their analogue radio stations.[15][16] Broadcasters also state that DAB offers better reception, without the problems of interference that is more noticeable through analogue radio.[17] DAB radios also come with features such as station lists, so listeners do not need to retune their receivers, as well as scrolling text, providing information such as breaking news, travel information or the latest track information.[17]

DAB has also been marketed with having two major advantages over analogue radio broadcasting in that using MPEG-1 Audio Layer II lossy audio compression technology, parts of the audio spectrum that cannot be heard by humans are discarded, meaning less data needs to be sent over the air. This, as well as multiplexing technology allows a number of channels to be broadcast together on one frequency as opposed to one channel for analogue radio broadcasts.[18]

National, local and regional DAB ensembles use the same frequency for the area they cover. Using a single-frequency network, an ensemble broadcasting a number of stations can cover the same area as a number of FM frequencies which would be required to cover the same area for one station. The BBC carried out successful tests of a single-frequency network in London before launching its national DAB ensemble.[19]

[edit] Criticisms of DAB in the UK

DAB provides low audio quality in the UK due to 98% of stereo stations using a bit rate level of 128 kbit/s[20] with the MP2 audio codec, which provides much poorer sound quality than FM-quality (assuming good reception on both DAB and FM).[21] Also, a large and growing number of music stations are transmitting in mono.[22] Indeed, the bit rates used by the radio stations on other digital platforms, such as cable, terrestrial and satellite are usually higher than on DAB, so the audio quality is also higher.[23] For example, all of the BBC stations use higher bit rates on the digital TV platforms than on DAB apart from the BBC World Service on Freeview.

In addition, Ofcom has said that even after extra spectrum has been allocated to DAB, it estimates that around 90 local radio stations will either be unable to transmit on DAB because there is no space for them on a local DAB multiplex or because they cannot afford the high transmission costs of DAB that the multiplex operators are charging.[24] However, Ofcom announced in 2005 that it regarded Digital Radio Mondiale (DRM) as being an option for the local stations unable to secure carriage or unable to pay the high transmission costs of DAB.[25]

In the UK, on 30 January 2008, a report in the Daily Mail claimed that there are not enough DAB radios being sold to support the service for the future and that people are favouring their traditional analog radios over DAB. It also reported that unless sales start to rise, DAB in the UK could follow the same fate as Betamax Video Cassettes did in the 1980s.[26] In January 2009, the Digital Radio Development Bureau announced that fewer DAB radio sets were sold in Christmas 2008 than in the previous year, although the group states that customer confidence in DAB remains high.[27]

On January 24, 2009 Ofcom allowed electrical retailers to be granted a licence to rebroadcast DAB signals within their stores to demonstrate DAB radio sets within their stores. The United Kingdom consumer charity, Which? warned that consumers who could not get an adequate DAB signal could be mislead by the in-store sets. The Digital Radio Development Bureau replied to the Which? report stating that stores contain a steel structure which produce a faraday cage effect where DAB signals are blocked out. The DRDB recommended that consumers should check DAB coverage online with their postcode before purchasing a DAB radio to avoid disappointment.[28]

[edit] Company pullouts of DAB

[edit] GCap

On February 11, 2008 GCap Media chief executive Fru Hazlitt presented a new strategy for GCap to fend off a takeover bid from Global Radio.[29] The strategy for DAB included the closure of national DAB stations Planet Rock and theJazz to close by March 31, 2008 as well as the disposal of Digital One to Arqiva for £1.[30] The chief executive also stated that the DAB platform in the UK was not economically viable and that growth in digital radio would come from FM and Internet Radio,[31] announcing a deal with Apple to stream GCap stations on the iPod touch and iPhone on the same day.[32]

The takeover of GCap by Global Radio has led to them keeping Digital One and looking to take a stake in Channel 4's second national commercial multiplex.

The Digital Radio Development Bureau and the 4 Digital Group defended DAB by stating that DAB was showing signs of growth and would become more attractive to consumers and broadcasters.[33] The BBC and 4 Digital Group issued a joint statement on 12 February 2008 stating their commitment to DAB.[34]

[edit] 4 Digital Group

On October 10, 2008 Channel 4 announced that it would be pulling out of the 4 Digital Group consortium, which includes the withdraw of launching services on the second national multiplex as well as the axing of its three digital radio services, E4 Radio, Channel 4 Radio and Pure 4.[35] Channel 4 chief executive Andy Duncan admitted that the axing of Channel 4's foray into digital radio could cost the corporation £9 million.[36]

[edit] DAB frequency plan

DAB radio stations in the United Kingdom are broadcast on a number of frequency blocks on VHF Band III. The original plan devised in Wiesbaden for the framework of DAB in Europe was to allocate frequency blocks 11B to 12D for UK DAB broadcasting. However, as part of its Review of Radio, Ofcom has expanded the frequency allocations for DAB and has advertised local and a national ensemble licence on blocks outside the original Wiesbaden plan on 10A to 10D and 11A.[37]

Block Frequency England and Wales Scotland Northern Ireland
10A 209.936 MHz None None None
10B 211.648 MHz Local ensembles None None
10C 213.360 MHz Local ensembles None None
10D 215.072 MHz Local ensembles None None
11A 216.928 MHz Digital Two Digital Two Digital Two
11B 218.640 MHz Local ensembles Local ensembles None
11C 220.352 MHz Local ensembles Local ensembles None
11D 222.064 MHz Digital One ensemble Local and regional ensembles None
12A 223.936 MHz Local and regional ensembles (except West Wales) Digital One ensemble None
12B 225.648 MHz BBC national DAB ensemble BBC national DAB ensemble BBC national DAB ensemble
12C 227.360 MHz Local and regional ensembles (except the south coast) Local and regional ensembles None
12D 229.072 MHz Local ensembles (except the south coast) Local ensembles Local ensembles

Under a Maastricht plan in 2002, the UK also has L band allocations for local terrestrial DAB,[38] though there are no plans to broadcast any digital radio stations on L band. Ofcom auctioned spectrum in L band in 2008 for a number of uses, including terrestrial digital radio.[39] On May 16, 2008, Ofcom declared that Qualcomm UK Spectrum Ltd had won the auction of L band frequencies in the UK.[40]

[edit] BBC National DAB

The BBC's national DAB ensemble broadcasts on frequency block 12B (225.648 MHz) across the United Kingdom,[41] with coverage currently at 87% of the population of the United Kingdom, with ongoing plans to extend coverage to 90%.[42] The multiplex is owned and operated by the BBC and is transmitted from a number of transmitter sites across the country. The BBC's national multiplex carries only BBC national radio stations. Local BBC radio stations are carried on the relevant local DAB ensemble where commercial DAB licences are operating.[43]

[edit] Commercial DAB multiplexes

There are a number of commercial DAB multiplexes operators in the UK who run 48 local and regional DAB multiplexes across the United Kingdom. operators include the national operator, Digital One, regional operator MXR and local multiplexes operators including NOW Digital, Bauer Media Group, UTV, Switch Digital and MuxCo.

[edit] DAB+

DAB+, a new digital radio standard using the HE-AAC encoding standard and announced by the WorldDAB organisation in 2006, is being considered for digital radio broadcasting in the UK. HE-AAC encoding is more efficient than the MPEG-2 Layer II encoding standard currently used for DAB in the UK. DAB+ will either allow stations to broadcast at higher sound quality than currently possible with DAB, or allow more stations at the same quality currently broadcast on an ensemble.[44]

The Digital Radio Development Bureau released a press statement in January 2007 in which they admitted that DAB+ will be used in the UK in future.[45][46] Ofcom have said that the UK will switch to DAB+, but not until the vast majority of radio sets can work with DAB+.[47]

The 4Digital Group, led by Channel 4, who were originally awarded the licence to operate the new national DAB multiplex, had planned to launch a podcast service using the DAB+ format.[48]

[edit] Digital terrestrial television

Transmitters including Emley Moor (pictured) broadcast digital radio via DAB and digital terrestrial television

Digital radio on the digital terrestrial platform started on 30 October 2002[49] with the launch of the BBC's digital only radio services, BBC 1Xtra, BBC Five Live Sports Extra, BBC 6 Music, BBC 7 and the BBC Asian Network as well as existing stations BBC Radio Five Live and the BBC World Service. All the stations broadcast on the BBC's multiplex B.

On the same day EMAP Radio (now owned by Bauer Radio) launched three radio stations, Smash Hits, Kerrang! and Kiss. Two other commercial radio stations also launched, oneword and 102.2 Jazz FM.[50]

The BBC later launched BBC Radio 1, Radio 2, Radio 3 and Radio 4 FM on multiplex A on 14 February 2003.[51] These channels later moved to Multiplex 1 on 3 October 2007.[52]

Currently, the digital terrestrial platform has twenty seven radio stations broadcasting from broadcasters including the BBC, Bauer Radio, GMG Radio and Absolute Radio.[53]

[edit] Digital satellite

Radio stations broadcasting via Satellite to the United Kingdom usually use the SES Astra series of satellites at 28.2° east or the Eutelsat Eurobird 1 satellite at 28.5° east. Radio stations broadcast free-to-air via the Sky Digital, Freesat from Sky platforms and any DVB-S compliant set-top box.[54] The Freesat platform has all the BBC's national and regional digital radio stations as well as BBC London 94.9 from the launch on May 6, 2008 on the EPG.

WorldSpace was planning a subscription based digital radio satellite service on the upper frequencies of the L band, if it had secured the frequencies from the Ofcom auction of L band frequencies in 2008.[55][56] However, Qualcomm beat WorldSpace in securing the L band frequencies in the Ofcom auction process.[40]

[edit] Digital cable television

A number of digital radio stations also broadcast through digital cable platforms, including Virgin Media and WightCable.[57]

[edit] Internet radio

In the United Kingdom, over 350 of the UK's radio stations also stream their stations online, not including Restricted Service Licenced radio stations, Hospital radio stations and stations who solely broadcast online.[58] RAJAR figures taken between April and May in 2008 showed that 14.5 million people have listened to radio online with 9.4 million people listening every week.[59] As well as listening through a media player on a computer, a number of British firms, including BT Group, Reciva, Dixons and Acoustic Energy have brought out Internet radio devices which use the Wi-Fi signal from a router to stream Internet radio stations within range of a Wi-Fi router.[60] Apple and GCap Media made a deal in February 2008 for GCap stations to be broadcast through iPhone and iPod touch devices.[32]

In 2006, the Phonographic Performance Limited (PPL) announced that it would charge additional royalty fees on UK Internet radio stations if they broadcast outside the UK.[61] Radio stations which stream online including GCap Media and GMG Radio,[62] have implemented IP blocking to prevent listeners outside the UK from listening to their radio stations and therefore avoided the increased fees.[61][63]

In March 2007, a BBC News article reported that the PPL were re-negotiating royalty fees paid by UK Internet radio stations, and the result of the negotiations would be that fees would increase.[64]

[edit] Digital Radio Mondiale

Digital Radio Mondiale is being considered by Ofcom for introduction in Britain in 2012, on the present AM medium wave band.

In 2005, tests of DRM on shortwave radio from European transmitters broadcasting into the United Kingdom were performed by Virgin Radio, Classic Gold, Premier Christian Radio, Virgin Radio Classic Rock, Asian Sound and CVC.[65]

The British Broadcasting Corporation BBC started broadcasting the BBC World Service on shortwave and mediumwave radio for a few hours a day[66] across Europe from Orford Ness in Suffolk and Kvitsøy in Norway, the latter being receivable across England, Wales and Southern Scotland.[67][68]

The BBC undertook a trial of the digital radio mondiale (DRM) technology, which allowed them to explore digital radio using medium-wave frequencies. The trial broadcast BBC Radio Devon using the new technology in the Plymouth area from April 2007[69] and closed down on October 31, 2008.[70] In May 2009, the BBC released a report on the trial in Devon. The report gave a number of conclusions about DRM from the trial:[71][72]

  • The sound quality from the trial was better than AM quality, but not as good as average DAB quality;[70]
  • The daytime coverage of the DRM trial extended further than the discontinued AM service. However, the night-time service, as expected to be smaller than daytime coverage due to the characteristics of medium wave broadcasting,[72] did cause problems with interference to the DRM trial. The BBC stated this interference can be avoided, but only with a redesign of the transmission network;[73]
  • A single frequency network is possible and would be significantly robust.[70]

[edit] Digital Multimedia Broadcasting

In 2006, National Grid Wireless carried out a technical trial of T-DMB and DAB-IP on the UTV-EMAP Stoke-on-Trent ensemble.[74] The trial assessed the reception qualities of both technologies in urban and rural areas as well as the mobile television and radio services which could be delivered.[75]

There is currently an ongoing experimental DMB multiplex broadcast in London on L-Band and Cambridge on VHF Band III, used for video, audio and data applications.[76][77]

[edit] Analogue switch-off

On January 29, 2009 the UK Government's interim report into digital communication for the future by Lord Carter, Digital Britain, made the suggestion that DAB would be the future direction of digital radio in the United Kingdom. The report stated that only when the following conditions are met, a migration from FM to DAB would begin:

  • Digital radio listening figures hit at least 50%;
  • Coverage of DAB matches that of FM, of 90% which the report stated would not be achieved until 2015. The report mentioned that the Government would work with the BBC to meet the coverage target.[78]

Carter also suggested in his report that manufacturers of devices which can pick up radio signals ensure it is DAB ready for the forthcoming migration. The report also indicates plans to create a Digital Radio Delivery Group, made up of the major investors of DAB, whose plan it will be to ensure a smooth transition from AM and FM to DAB for consumers. They will also advise on digital radio migration.[79]

On June 16, 2009 the final Digital Britain report concluded that a switchover of all national and local FM services which currently broadcast on DAB multiplexes would take place in 2015 and that DAB would be chosen to take the UK to and beyond switchover.[80]

[edit] Application and licensing

The United Kingdom media and communications Ofcom (and before the formation of Ofcom, the Radio Authority) advertises and provides the licenses for digital radio services in the United Kingdom, under the Broadcasting Acts of 1990 and 1996.[81]

[edit] Application and licensing procedures

Ofcom awards licenses for digital radio services differently depending on the type of service and the platform.[81] Ofcom advertises the licences of new digital radio ensembles and are subject to an open competition to the highest bidder. Ensemble licence awards are awarded for twelve years. On digital television services, individual stations can apply for either a digital cable and satellite licence to broadcast on the aforementioned platforms,[81] or apply for a digital terrestrial licence to broadcast on digital terrestrial television.[82]

On Digital Terrestrial Television and DAB, broadcasters also need to contact the ensemble or multiplex operator of a local or national DAB ensemble or digital terrestrial multiplex to broadcast within a region, subject to a fee payable to the ensemble operator.[83] On Digital Satellite, radio stations need to secure capacity with a transponder operator and an uplink to a satellite.[84] To broadcast on the Sky Digital platform, a broadcaster must also secure an EPG slot allowing viewers to navigate to their channel using the set-top-boxes provided by British Sky Broadcasting. A request for a EPG slot must be done up to nine months in advance.[85] The same procedure applies to secure a slot on the Freesat platform, although stations need to contact Freesat UK Ltd instead of BSkyB. On Digital Cable, broadcasters need to contact a cable supplier for carriage.

All stations broadcast in the UK must legally hold a music copyright licence from the Phonographic Performance Limited, PRS for Music and Mechanical-Copyright Protection Society in order for royalties to be paid to the musicians the main bodies represent.[86]

[edit] First national ensemble

On 24 March 1998, the Radio Authority advertised for the first (and at the time, the only one planned) national ensemble to be broadcast on DAB. The three national commercial services on FM and mediumwave had to be included as part of the ensemble, Classic FM, talkSPORT and Virgin Radio.[87] The licence was awarded to the sole applicant, GWR Group and NTL Broadcast to form Digital One.[9] The original licence application included the following stations:[88]

Digital One Ltd (original application)
Classic FM Classical music GWR (now part of Global Radio)
Classic Gold Rock Rock music NTL
Club dance Dance music TBA
Plays, books and music Comedy, drama and serials TBA
Rolling news service Rolling news ITN
Soft AC Female contemporary music TBA
Sports channel Live sports and comment Talk Radio UK
Talk Radio (now talkSPORT) Talk radio Talk Radio UK (now owned by UTV Radio)
Teen and chart hits Pop and dance music GWR
Virgin Radio Complementary rock music SMG plc

After the closure of PrimeTime Radio in 2006, the original licence was amended to allow the launch of a new classic and contemporary jazz service, theJazz which was launched on 25 December 2006, before the 31 December 2006 deadline set in the licence amendment.[89]

In April 2009, Global Radio, which had acquired GCap Media - part owner of Digital One, sold its 63% stake in the ensemble to Arqiva, making them the sole owner and operator of the ensemble.[90]

[edit] Local ensembles

The Radio Authority (and subsequently Ofcom) continue to award regional ensemble licences to a number of radio groups with advertising of the licences starting from 1998,[91] and licence awards being awarded from 10 May 1999, with the Birmingham ensemble being the first local licence being issued to CE Digital.[92] The Birmingham ensemble licence award was followed by awards for licences in Manchester, Greater London, Glasgow and South Yorkshire, with more licences being awarded afterwards.

In October 2006, Ofcom announced a timetable of locations which would get its own DAB ensemble, where a local ensemble does not currently offer coverage.[93] Three blocks will be made available in VHF Band III. In May 2007, Ofcom replaced the York and Scarborough for a licence which covers the whole of North Yorkshire, and the Guildford plus Reigate and Crawley licences were merged to cover Surrey.[94]

Areas covered are as follows:

Area Advertisement date Block Winning applicant Ensemble name
Hertfordshire, Bedfordshire and Buckinghamshire December 2006 10D NOW Digital NOW Home Counties
Derbyshire January 2007 10B NOW Digital (East Midlands) NOW Derbyshire
Wrexham and Chester February 2007 10D MuxCo MuxCo North East Wales & West Cheshire
Hereford and Worcestershire March 2007 10B MuxCo MuxCo Hereford & Worcester
Northamptonshire April 2007 10C NOW Digital NOW Northampton
Oxfordshire May 2007 10B NOW Digital NOW Oxford
Gloucestershire July 2007 10C MuxCo MuxCo Gloucestershire
North Yorkshire June 2007 12D MuxCo MuxCo North Yorkshire
Mid and West Wales August 2007 12D MuxCo MuxCo Mid and West Wales
Surrey and Northern Sussex September 2007 10C MuxCo MuxCo Surrey and Northern Sussex
Lincolnshire October 2007 10D MuxCo MuxCo Lincolnshire

[edit] Regional ensembles

The first regional licence[95] to cover a greater area of land compared to a local ensemble was awarded on 6 October 2000 to Switch Digital for Central Scotland[96] Other areas which were awarded and classed as regional licences include:

Region Operator Licence award date On air date
Central Scotland Switch Digital 6 October 2000 June 2001
North East England MXR Ltd 15 December 2000 July 2001
South Wales and the Severn Estuary MXR Ltd 23 January 2001 July 2001
West Midlands MXR Ltd 9 February 2001 August 2001
North West England MXR Ltd 9 March 2001 September 2001
Yorkshire MXR Ltd 28 November 2002 June 2003

In March 2009, Ofcom made a recommendation to the Government in their Radio in Digital Britain report that the regional ensembles should expand into a nationwide regionalised service to fill the gap made by the 4Digital Group pulling out of the second national ensemble. Ofcom cited that the regions for the second national ensemble would be:[97]

[edit] Second national ensemble

Ofcom announced in 2005 that they would be advertising for the second national digital ensemble. As a result, GCap threatened to take Ofcom to court after being told by the Radio Authority that there would not be another national ensemble. The court action was dropped after Ofcom assured GCap that none of the stations on the second ensemble would compete with existing stations on the Digital One ensemble.[98]

On 1 December 2006, Ofcom advertised a licence for a second national digital ensemble to launch new digital radio and multimedia services on frequency block 11A (216.928 MHz).[99] Applications needed to be submitted to Ofcom by 28 March 2007.

On 29 March 2007, Ofcom announced that it had received two applications for the second national digital ensemble, from the 4 Digital Group and National Grid Wireless.[100] The radio channels which made up both applications are as follows:[101][102][103]

4 Digital Group
Channel 4 Radio Speech Channel 4 Radio
Closer Female music and lifestyle EMAP
Disney Children's radio The Walt Disney Company
E4 Radio Youthful entertainment and music Channel 4 Radio
Original Album led alternative music CanWest Global Communications
Pure 4 Adult music and speech Channel 4 Radio
Sky News Radio Rolling news British Sky Broadcasting
Sunrise Radio Asian music and community programming Sunrise Radio Group
talkRadio Talk radio UTV plc
Virgin Radio Viva Younger female music station SMG plc
Podcast service Various podcasts Various
National Grid Wireless
BBC Asian Network Asian music and entertainment BBC
Channel 4 Radio Station 1 TBA Channel 4 Radio
Channel 4 Radio Station 2 TBA Channel 4 Radio
Colourful News and Afro-Caribbean community radio Colourful Media Limited
Confidential 50+ radio station Confidential
Confidential Adult-Album Confidential
Confidential Asian radio station Confidential
Confidential Love songs Confidential
Confidential Rolling news Confidential
Fun Radio Children's programming (13 hours) Children's Radio UK Limited
Premier Christian Radio Christian programming London Christian Radio Limited
Radio Luxembourg Youthful alternative and indie music CLT/UFA
Radio Play Interactive participation radio (6 hours) Somethin' Else

On 6 July 2007 Ofcom awarded the licence for the second national ensemble to the 4 Digital Group, who are required to launch its services one year after its licence award.[104] However on October 10, 2008 the 4 Digital Group pulled its plans for digital radio, including the launch of the second multiplex. Ofcom held talks with the other remaining shareholders of the 4 Digital Group to see if they were willing to continue with the launch.[105] In March 2009, Ofcom recommended to the Government that the second national ensemble should be regionalised, formed by the existing regional ensembles.[97]

[edit] Digital Radio Development Bureau

The Digital Radio Development Bureau (DRDB) is a trade body whose primary objective is to promote the use and take up of DAB in the United Kingdom.[106] DRDB's stakeholders include the BBC, GCap Media, Digital One, Bauer Radio and MXR.[107] Part of DRDB's plans to promote DAB uptake is to set up a website for consumers as well as print and radio advertising.[108]

[edit] References and notes

  1. ^ a b Plunkett, John (2009-05-07). "Rajars: More than a third of UK is now listening to digital radio". The Guardian. http://www.guardian.co.uk/media/2009/may/07/rajars-digital-radio. Retrieved on 2009-05-07. 
  2. ^ a b Oatts, Joanne (2007-05-10). "Digital radio owners up 43%". Digital Spy. http://www.digitalspy.co.uk/radio/a46373/digital-radio-owners-up-43-percent.html. Retrieved on 2007-05-12. 
  3. ^ Plunkett, John (2008-05-01). "Digital radio attracts more listeners". The Guardian. http://www.guardian.co.uk/media/2008/may/01/digitaltvradio.rajars?gusrc=rss&feed=media. Retrieved on 2008-05-03. 
  4. ^ "Milestones - 1990s". BBC Research and Development. http://www.bbc.co.uk/rd/milestones/1990s.shtml. Retrieved on 2007-04-17. 
  5. ^ "The Status of T-DAB implementation in Europe". The Catalyst. http://www.digitaleradio.nl/Catalyst/EN/articles/EN_02_TheStatusofT-DABinEurope.htm. Retrieved on 2007-04-17. 
  6. ^ "So how does the BBC fit in?". BBC Research and Development. http://www.bbc.co.uk/rd/projects/dab/dabbbc.shtml. Retrieved on 2007-07-09. 
  7. ^ a b c "DCMS REVIEW OF DAB DIGITAL RADIO" (PDF). BBC. October 2004. http://www.bbc.co.uk/info/policies/pdf/dab_review.pdf. Retrieved on 2007-06-10. 
  8. ^ "Broadcasting Act 1996". Office of Public Sector Information. Her Majesty’s Stationery Office. http://www.opsi.gov.uk/ACTS/acts1996/1996055.htm. Retrieved on 2007-04-21. 
  9. ^ a b "APPENDIX 3.6 - Digital audio broadcasting" (pdf). Competition Commission. http://www.competition-commission.org.uk/rep_pub/reports/2003/fulltext/479a3.6.pdf. Retrieved on 2007-04-17. 
  10. ^ "[http://www.rtve.es/dab/tapi141.pdf World DAB Forum - DAB: a digital revolution for Europe and the World]" (pdf). Radio Televisión Española. World DAB Forum. November 1999. http://www.rtve.es/dab/tapi141.pdf. Retrieved on 2007-04-17. 
  11. ^ "Frequently Asked Questions". Digital One. http://www.ukdigitalradio.com/advice/faqs/default.asp?search=coverage&id=53#faq53. Retrieved on 2009-05-02. 
  12. ^ "DAB radio sales pass 3m landmark". Digital TV Group. Lovelace Consulting. 2006-05-03. http://www.dtg.org.uk/news/news.php?id=1641. Retrieved on 2007-06-10. 
  13. ^ "PURE EVOKE SERIES AWARDED GET CONNECTED “PRODUCT OF THE YEAR”". Pure Digital. 2007-02-13. http://www.pure.com/Releases/Release.asp?ID=277. Retrieved on 2007-06-10. 
  14. ^ "Dixons turn off analogue radio supply". Manchester Evening News. 2006-08-16. http://www.manchestereveningnews.co.uk/news/technology/s/220/220898_dixons_turn_off_analogue_radio_supply.html. Retrieved on 2007-06-10. 
  15. ^ "How to listen to digital radio". BBC. http://www.bbc.co.uk/digitalradio/listen/which.shtml. Retrieved on 2007-06-12. 
  16. ^ "Emap Digital Radio". EMAP. http://www.emapdigitalradio.com/edr/index.shtml. Retrieved on 2007-06-12. 
  17. ^ a b "What is DAB digital radio?". BBC. http://www.bbc.co.uk/digitalradio/about/benefits.shtml. Retrieved on 2007-06-12. 
  18. ^ I.P. Duncumb, A.L. Bridgen and J. L. Alty. "THE USE OF MORE EFFICIENT AUDIO COMPRESSION TO PROVIDE LOW BIT-RATE SPECIALIST SERVICES OVER DAB". Loughborough University. http://www.broadcastpapers.com/whitepapers/paper_loader.cfm?pid=420. Retrieved on 2007-06-12. 
  19. ^ "Field trials with a high power VHF single frequency network for DAB" (PDF). European Broadcasting Union. 2004. http://www.ebu.ch/en/technical/trev/trev_261-maddocks.pdf. Retrieved on 2007-06-12. 
  20. ^ DAB Around the World
  21. ^ Robinson, Dr David J. "Regulation in digital broadcasting". University of Essex. Department of Electronic Systems Engineering. http://www.david.robinson.org/commsbill/#1_2_3. Retrieved on 2007-05-21. 
  22. ^ "Mono is the new stereo on national DAB". Digitalradiotech. 2006-12-15. http://www.digitalradiotech.co.uk/articles/Mono-is-the-new-stereo-on-national-DAB.php. Retrieved on 2007-05-21. 
  23. ^ "Digital Radio Platform Bit Rates". Digitalradiotech. http://www.digitalradiotech.co.uk/dab/digital_radio_bit_rates.htm. Retrieved on 2007-05-21. 
  24. ^ "Ofcom Encourages UK to Move to DAB Version 2". Digitalradiotech. 2006-02-22. http://www.digitalradiotech.co.uk/articles/Ofcom-Encourages-UK-to-Move-to-DAB-Version-2.php. Retrieved on 2007-05-21. 
  25. ^ "Radio - Preparing for the Future - Phase 2: Implementing the Framework" (PDF). Ofcom. 2005-10-19. http://www.ofcom.org.uk/consult/condocs/radio_reviewp2/p2.pdf. Retrieved on 2007-05-21. 
  26. ^ Revoir, Paul (2008-01-30). "The new Betamax: Will digital radio follow the march into hi-tech oblivion?". Daily Mail. http://www.dailymail.co.uk/pages/live/articles/technology/technology.html?in_page_id=1965&in_article_id=511169. Retrieved on 2008-02-25. 
  27. ^ Welsh, James (2009-01-27). "DAB radio sales slow year-on-year". Digital Spy. http://www.digitalspy.co.uk/broadcasting/a144670/dab-radio-sales-slow-year-on-year.html. Retrieved on 2009-01-27. 
  28. ^ "In-store demos of DAB radios 'could be misleading'". Which?. 2009-01-24. http://www.which.co.uk/news/2009/01-jan/in-store-demos-of-dab-radios-could-be-misleading-167375.jsp. 
  29. ^ "Fuzzy Reception At GCap". Dow Jones Newswire. 2008-02-11. http://www.thebusiness.co.uk/news-and-analysis/498406/fuzzy-reception-at-gcap.thtml. Retrieved on 2008-02-25. 
  30. ^ "GCap Media plc Strategy Presentation Statement" (PDF). GCap Media. 2008-02-11. http://corporate.gcapmedia.com/assets/dynamic/15/files/94/94_1202714303_radiance_press_release_final_pdf.pdf. Retrieved on 2008-02-25. 
  31. ^ Plunkett, John (2008-02-11). "Hazlitt: DAB 'not economically viable'". The Guardian. http://www.guardian.co.uk/media/2008/feb/11/gcapmedia.digitaltvradio?gusrc=rss&feed=media. Retrieved on 2008-02-25. 
  32. ^ a b Allen, Katie (2008-02-11). "GCap to pioneer 'listen and buy' radio for iPods". The Guardian. http://www.guardian.co.uk/media/2008/feb/11/radio.ipod?gusrc=rss&feed=technology. Retrieved on 2008-02-25. 
  33. ^ Parsons, Russell (2008-02-11). "DRDB defends DAB after GCap decision". mad.co.uk. http://www.mad.co.uk/Main/News/Articles/763d0bd8ba584ecd9f525eb53e90ee14/DRDB-defends-DAB-after-GCap-decision.html. Retrieved on 2008-02-25. 
  34. ^ "DAB is not dead, says BBC". Radio Today. 2008-02-12. http://www.radiotoday.co.uk/news.php?extend.3041.2. Retrieved on 2008-02-25. 
  35. ^ Welsh, James (2008-10-10). "Channel 4 axes radio services". Digital Spy. http://www.digitalspy.co.uk/broadcasting/a132311/channel-4-axes-radio-services.html. Retrieved on 2008-10-10. 
  36. ^ Plunkett, John (2008-10-21). "Channel 4: Digital radio misadventure could cost £9m". The Guardian. http://www.guardian.co.uk/media/2008/oct/21/channel4-digital-radio. Retrieved on 2009-01-27. 
  37. ^ "Radio – Preparing for the Future - Appendix D: Options for DAB replanning – A report to the DRDB - Analogue Radio Switchover Group". Ofcom, Arqiva. 9-10format=pdf. http://www.ofcom.org.uk/consult/condocs/radio_reviewp2/appendix_d.pdf. Retrieved on 2007-04-21. 
  38. ^ "L-band Allocations". DAB Ensembles Worldwide. http://www.wohnort.org/DAB/uklband.html. Retrieved on 2007-04-21. 
  39. ^ "1452-1492 MHz (L Band)". Ofcom. http://www.ofcom.org.uk/radiocomms/spectrumawards/liveawards/award_1452/. Retrieved on 2008-05-03. 
  40. ^ a b "Ofcom awards spectrum licence to Qualcomm UK Spectrum Ltd". Ofcom. 2008-05-16. http://www.ofcom.org.uk/media/news/2008/05/nr_20080516b. Retrieved on 2008-05-16. 
  41. ^ "National radio stations in the United Kingdom". radio-now.co.uk. http://www.radio-now.co.uk/national.htm. Retrieved on 2007-04-15. 
  42. ^ "DAB Digital Radio - Coverage". BBC. http://www.bbc.co.uk/radio/waystolisten/digitalradio/. Retrieved on 2009-05-02. 
  43. ^ "BBC local radio on DAB - transmitter information". British Broadcasting Corporation. http://www.bbc.co.uk/reception/transmitters/radio/digital_local_radio.shtml. Retrieved on 2007-04-15. 
  44. ^ "DAB vs DAB+ technology". Digital Radio Tech. http://www.digitalradiotech.co.uk/dab/dab_vs_dab+.htm. Retrieved on 2007-07-09. 
  45. ^ "Optional high efficiency audio codec in the UK" (PDF). Digital Radio Tech. Digital Radio Development Bureau. http://www.digitalradiotech.co.uk/documents/DRDB_UK_DAB+_policy.pdf. Retrieved on 2007-04-21. 
  46. ^ "UK DAB industry admits DAB+ will be used in the UK". Digital Radio Tech. 2007-03-29. http://www.digitalradiotech.co.uk/articles/UK-DAB-industry-admits-DAB+-will-be-used-in-the-UK.php. Retrieved on 2007-04-21. 
  47. ^ "President of WorldDMB was dishonest about DAB+ on BBC TV". Digital Radio Tech. 2007-03-21. http://www.digitalradiotech.co.uk/articles/President-of-WorldDMB-was-dishonest-about-DAB+-on-BBC-TV.php. Retrieved on 2007-04-21. 
  48. ^ "Channel 4 proposes to use DAB+ on new national commercial multiplex". Digital Radio Tech. http://www.digitalradiotech.co.uk/articles/Channel-4-proposes-to-use-DAB+-on-new-national-commercial-multiplex.php. 
  49. ^ Although not strictly classed as a digital radio service, BBC Parliament broadcast on digital terrestrial in audio only up until the launch of Freeview on October 30, 2002
  50. ^ "Freeview to launch on 30 October". BBC Press Office. 2002-10-03. http://www.bbc.co.uk/pressoffice/pressreleases/stories/2002/10_october/03/freeview_launchdate.shtml. Retrieved on 2007-04-15. 
  51. ^ Wilkes, Neil (2003-02-12). "Freeview launch for Radio 1 - 4". Digital Spy. http://www.digitalspy.co.uk/digitaltv/a10361/freeview-launch-for-radio-1-4.html. Retrieved on 2007-04-15. 
  52. ^ "BBC Radio stations to move multiplexes". Deeteetee.co.uk. 2007-09-10. http://deeteetee.blogspot.com/2007/09/bbc-radio-stations-to-move-multiplexes.html. Retrieved on 2008-01-19. 
  53. ^ "Freeview - Radio". DTV Services Limited. http://www.freeview.co.uk/channels/radio. Retrieved on 2007-04-15. 
  54. ^ "Sky Digital - Freesat: Channel Lineup". Digital Spy. http://www.digitalspy.co.uk/satellite/freesatepg/. Retrieved on 2007-04-16. 
  55. ^ "WorldSpace bids for L-band spectrum in UK". Radio Netherlands International. 2008-04-19. http://blogs.rnw.nl/medianetwork/worldspace-bids-for-l-band-spectrum-in-uk. Retrieved on 2008-05-03. 
  56. ^ Ray, Bill (2008-04-18). "Ofcom lifts the lid on L-band bidders". The Register. http://www.theregister.co.uk/2008/04/18/l_band_bidders/. Retrieved on 2008-05-03. 
  57. ^ "Digital cable". RJ Productions. http://www.uk-dab.info/dcable.php. Retrieved on 2007-04-16. 
  58. ^ Lo, Vincent. "UK Radio Stations broadcasting on the Internet". Radiofeeds.co.uk. http://www.radiofeeds.co.uk. Retrieved on 2007-05-12. 
  59. ^ Dowell, Ben (2008-07-02). "Podcasts help lift live radio audiences". The Guardian. http://www.guardian.co.uk/media/2008/jul/02/radio.rajars?gusrc=rss&feed=media. Retrieved on 2008-07-04. 
  60. ^ Smith, Tony (2004-04-23). "Firms prep Wi-Fi Internet radio tuners". The Register. http://www.theregister.com/2004/04/23/net_radios/. Retrieved on 2007-06-12. 
  61. ^ a b Hilton, Kevin (September 2006). "UK streamed radio blocked by copyright" (pdf). Pro Sound News Europe. 25. http://www.prosoundnewseurope.com/pdf/psne_download/2006/09/PSNE_September_P25-28_Broadcast.pdf. Retrieved on 2007-04-19. 
  62. ^ One exception to this was jazzfm.com, which continued to be streamed outside the UK
  63. ^ "Will licensing kill the radio star?". The Guardian. 2006-05-04. http://media.guardian.co.uk/newmedia/story/0,,1767058,00.html. Retrieved on 2007-04-19. 
  64. ^ "Royalties threaten internet radio". BBC News. 2007-03-08. http://news.bbc.co.uk/2/hi/technology/6430489.stm. Retrieved on 2007-04-19. 
  65. ^ "DRM UK". DRMRadio. http://www.drmradio.co.uk/html/drm_uk.html. Retrieved on 2007-04-21. 
  66. ^ "BBC Launches DRM Service In Europe". British Broadcasting Corporation. 2005-09-07. http://www.bbc.co.uk/worldservice/faq/news/story/2005/09/050907_drm_launch_release.shtml. Retrieved on 2007-04-21. 
  67. ^ "Live Broadcasts Schedule". Digital Radio Mondiale. http://www.drm.org/livebroadcast/livebroadcast.php. Retrieved on 2007-04-21. 
  68. ^ "DRM Schedule - Kvitsoy". DRM DX. http://baseportal.com/cgi-bin/baseportal.pl?htx=/drmdx/details&cmd=all&Id==199. Retrieved on 2007-04-21. 
  69. ^ "Digital Medium Wave". British Broadcasting Corporation. http://www.bbc.co.uk/devon/digitalmediumwave/index.shtml. Retrieved on 2007-04-15. 
  70. ^ a b c "Project Mayflower: The DRM Trial Final Report". British Broadcasting Corporation. 04 2009. http://downloads.bbc.co.uk/devon/pdfs/project-mayflower-summary-report.pdf. Retrieved on 2009-05-28. 
  71. ^ "Project Mayflower - Digital Radio Mondiale (DRM) Trial - Final audience research summary report". Marketing Communications and Audiences. 08 2008. http://downloads.bbc.co.uk/devon/pdfs/project-mayflower-final-audience-research-summary-report-february-2009.pdf. Retrieved on 2009-05-28. 
  72. ^ a b Murphy, Andrew (2009-02-18). "The Plymouth Digital Radio Mondiale (Drm) Trial - Long-term Reception Results". British Broadcasting Corporation - Research and Development. http://downloads.bbc.co.uk/devon/pdfs/project-mayflower-technical_white_paper.pdf. Retrieved on 2009-05-28. 
  73. ^ "Digital medium wave trial report". British Broadcasting Corporation. 2009-05-20. http://www.bbc.co.uk/devon/content/articles/2009/05/11/digital_medium_wave_report_feature.shtml. Retrieved on 2009-05-28. 
  74. ^ "Mobile media test at Stoke (T-DMB and DAB-IP service)" (pdf). National Grid Wireless. http://www.uk.nationalgridwireless.com/downloads/NGW_info_sheet.pdf. Retrieved on 2007-04-19. 
  75. ^ "National Grid Wireless begins DAB-IP and T-DMB trial". National Grid Wireless. 2006-09-09. http://www.uk.nationalgridwireless.com/pr_20060909.shtml. Retrieved on 2007-04-19. 
  76. ^ "Country Information for DAB, DAB+ and DMB - United Kingdom". World DMB. http://www.worlddab.org/country_information/united_kingdom. Retrieved on 2009-02-21. 
  77. ^ "United Kingdom & the Isle of Man". Wohnort. http://www.wohnort.org/DAB/ukloc.html. Retrieved on 2009-02-21. 
  78. ^ Plunkett, John (2009-01-29). "Digital Britain: Government to make DAB 'primary network' for radio". The Guardian. http://www.guardian.co.uk/media/2009/jan/29/digital-radio-lord-carter-report. Retrieved on 2009-01-29. 
  79. ^ "Digital Britain - the interim report" (pdf). BBC. Department of Culture, Media and Sport. 2009-01-29. http://news.bbc.co.uk/1/shared/bsp/hi/pdfs/29_01_09digital_britain_interimreport.pdf. 
  80. ^ "Digital Britain - Chapter 3b: Radio: Going Digital". Department of Culture, Media and Sport. 2009-06-16. http://www.culture.gov.uk/images/publications/chpt3b_digitalbritain-finalreport-jun09.pdf. Retrieved on 2009-06-16. 
  81. ^ a b c "THE RADIO AUTHORITY : ITS LICENCES AND LICENSING PROCEDURES". Ofcom. Radio Authority. http://www.ofcom.org.uk/static/archive/rau/about-ra/factsheets/fs3.html. Retrieved on 2007-05-05. 
  82. ^ "TV Licensing - Digital terrestrial television". Ofcom. http://www.ofcom.org.uk/static/tvlicensing/dtt/main.htm. Retrieved on 2007-05-12. 
  83. ^ "Broadcasters". Digital Radio Development Bureau. http://www.drdb.org/index.php?internalPage=brd.php&internalHeaderPage=brd_hd.html. Retrieved on 2008-02-25. 
  84. ^ "HOW TO SECURE YOUR CAPACITY". Eutelsat. http://www.eutelsat.com/business/2_4.html. Retrieved on 2008-02-25. 
  85. ^ "How to Launch A Channel". SES Astra. http://www.ses-astra.com/business/uk/solutions/media/broadcast/uk-how-to-launch-channel/index.php. Retrieved on 2008-02-25. 
  86. ^ "Frequently asked questions about UK Radio". RadioAndTelly.co.uk. http://www.radioandtelly.co.uk/radiofaq.html. Retrieved on 2007-02-25. 
  87. ^ "RADIO AUTHORITY ANNOUNCES ADVERTISEMENT DATE FOR NATIONAL COMMERCIAL MULTIPLEX". Ofcom. Radio Authority. 1998-03-05. http://www.ofcom.org.uk/static/archive/rau/newsroom/news-release/98/pr17.htm. Retrieved on 2007-05-05. 
  88. ^ "RADIO AUTHORITY RECEIVES ONE APPLICATION FOR FIRST AND ONLY NATIONAL COMMERCIAL DIGITAL MULTIPLEX LICENCE". Ofcom. Radio Authority. http://www.ofcom.org.uk/static/archive/rau/newsroom/news-release/98/pr56.htm. Retrieved on 2007-05-12. 
  89. ^ "ANNEX - PART I - Conditions relating to simulcast services and digital sound programme services" (doc). Ofcom. http://www.ofcom.org.uk/static/radiolicensing/digital/formats/DN001.doc. Retrieved on 2007-05-12. 
  90. ^ Plunkett, John (2009-04-07). "Global Radio sells Digital One to Arqiva". The Guardian. http://www.guardian.co.uk/media/2009/apr/07/global-radio-digital-one-arqiva. Retrieved on 2009-05-02. 
  91. ^ "Browse directory of Digital Multiplexes". Ofcom. Radio Authority. http://www.ofcom.org.uk/static/archive/rau/radio-stations/digital/dm-main.html. Retrieved on 2007-05-05. 
  92. ^ "RADIO AUTHORITY AWARDS FIRST LOCAL DIGITAL MULTIPLEX LICENCE, FOR BIRMINGHAM". Ofcom. Radio Authority. 1999-15-10. http://www.ofcom.org.uk/static/archive/rau/newsroom/news-release/99/pr072.htm. Retrieved on 2007-05-05. 
  93. ^ "Ofcom set to advertise new DAB muxes". Digital TV Group. 2006-10-25. http://www.dtg.org.uk/news/news.php?id=2020. Retrieved on 2007-04-16. 
  94. ^ "Oxfordshire DAB advertised". Radio Today. 2007-05-09. http://www.radiotoday.co.uk/news.php?extend.1930. Retrieved on 2007-05-09. 
  95. ^ "DAB Ensembles Worldwide - United Kingdom & the Isle of Man". http://www.wohnort.org/DAB/uknat.html. Retrieved on 2007-05-05. 
  96. ^ "RADIO AUTHORITY AWARDS LOCAL DIGITAL MULTIPLEX LICENCE FOR CENTRAL SCOTLAND". Ofcom. Radio Authority. 2000-10-06. http://www.ofcom.org.uk/static/archive/rau/newsroom/news-release/00/pr140.htm. Retrieved on 2007-05-05. 
  97. ^ a b "Radio in Digital Britain" (pdf). Ofcom. 2009-03-27. http://www.ofcom.org.uk/radio/ifi/radio_digitalbritain/digitalbrit.pdf. Retrieved on 2009-05-02. 
  98. ^ "GCap bottle out of taking Ofcom to court". Digital Radio Tech. 2006-03-30. http://www.digitalradiotech.co.uk/articles/GCap-bottle-out-of-taking-Ofcom-to-court.php. Retrieved on 2007-04-21. 
  99. ^ "[http://www.ofcom.org.uk/radio/ifi/rbl/dcr/adverts/advrt_national/national.pdf Advertisement of National Radio Multiplex Licence]" (pdf). Ofcom. 2006-12-01. http://www.ofcom.org.uk/radio/ifi/rbl/dcr/adverts/advrt_national/national.pdf. Retrieved on 2007-04-21. 
  100. ^ "Ofcom receives two applications for the DAB National Radio multiplex licence". Ofcom. 2007-03-29. http://www.ofcom.org.uk/media/news/2007/03/nr_20070329a. Retrieved on 2007-04-15. 
  101. ^ "Second UK-wide national DAB digital radio multiplex draws two applicants". Radio-now.co.uk. 2007-04-15. http://www.radio-now.co.uk/news545.htm. Retrieved on 2007-05-05. 
  102. ^ "The Services". 4 Digital Group. http://www.channel4.com/radio/4digital/services.html. Retrieved on 2007-05-05. 
  103. ^ "List of Applications for Radio Multiplex Licence: National". Ofcom. 2007-03-30. http://www.ofcom.org.uk/radio/ifi/rbl/dcr/applications/app_national/national/. Retrieved on 2007-05-05. 
  104. ^ "4 Digital group awarded new national digital radio multiplex licence". Ofcom. 2007-07-06. http://www.ofcom.org.uk/media/news/2007/07/nr_20070706. Retrieved on 2007-07-06. 
  105. ^ Sweney, Mark (2008-10-10). "Ofcom in talks to prevent digital radio crisis". The Guardian. http://www.guardian.co.uk/media/2008/oct/10/channel4-radio1. Retrieved on 2009-01-27. 
  106. ^ "Welcome to the Digital Radio Development Bureau". Digital Radio Development Bureau. http://www.drdb.org/index.php?internalPage=intro.php&internalHeaderPage=intro_hd.html. Retrieved on 2007-04-21. 
  107. ^ "Our Partners". Digital Radio Development Bureau. http://www.drdb.org/index.php?internalPage=part.php&internalHeaderPage=part_hd.html. Retrieved on 2007-04-21. 
  108. ^ "Consumers". Digital Radio Development Bureau. http://www.drdb.org/index.php?internalPage=cons.php&internalHeaderPage=cons_hd.html. Retrieved on 2007-04-21. 

[edit] See also

[edit] External links

[edit] Official sites

[edit] National and regional multiplex sites operators

[edit] UK Internet radio

[edit] Other sites

Personal tools