Digital broadcasting— a 2012 roadmap Giles Tanner General Manager Digital Transition Division ACMA.

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Presentation transcript:

Digital broadcasting— a 2012 roadmap Giles Tanner General Manager Digital Transition Division ACMA

k.m.s.e, the best of perth, Sculpture by the Sea, Bondi Photo Samantha Burns. k.m.s.e, the best of perth, Sculpture by the Sea, Bondi Photo Samantha Burns.

A Day Made of Glass 2

Australia’s digital dividend Source: =acma

Yielding the digital dividend—the restack & reallocation processes KEY ACMA Broadcasters Minister DBCDE Start 2010 Mid 2012 End 2014 Mid 2013 End Analog switch off Broadcasters relocate to new digital TV channels Restack legislative amendments Digital TV restack planning Restack completed Spectrum Auction Minister’s media release Discussion Paper Ministerial Direction Recom’ to Minister Allocation Instruments Ministerial Declaration Issue Licences Technical Framework Digital Dividend Green Paper Broadcasters start to plan infrastructure & new equipment Spectrum available for use

Current analog and digital channels during simulcast — Newcastle, Sydney, Illawarra KEY Digital channelsAnalog channels

KEY Digital channels Freed up spectrum 18 channels 6 channel block—Newcastle, Sydney, Illawarra

KEY DAB + Digital channels

Number of channels—2008 KEY 11 channels available 10 channels available 7 channels available

Number of channels—2012 KEY 16 channels available

Radio

What is DAB+ digital radio? >Like digital TV, DAB+ uses a multiplex (mux) >Four DAB+ muxes can fit into a single 7 MHz TV channel, with each mux carrying 1152 kbps of data >About 18 FM quality services could fit on a single mux using MHz spectrum … or more if lower audio quality is OK

DAB+ multiplex shares in Sydney 2SM Super 2DAY SCA 2MMM SCA 2UE Fairfax 2KY TAB Two-ninths reserved for community radio Excess (256kbps) 2UUS ARN 2WFM ARN 2PTV DMG 2SYD DMG 2GB Macq. 2CH Macq. Two-ninths reserved for community radio Excess (128kbps) 2SM Super 2DAY SCA 2MMM SCA 2UE Fairfax 2KY TAB Two-ninths reserved for community radio 2MMM SCA (128kbps) 2DAY SCA (64kbps) 2SM Super (64kbps) 2UUS ARN 2WFM ARN 2PTV DMG 2SYD DMG 2GB Macq. 2CH Macq. Two-ninths reserved for community radio 2DAY SCA. (64kbps) 2UUS ARN (32kbps) 2WFM ARN (32kbps) ABC (768kbps) SBS (384kbps) ABC (768kbps) SBS (384kbps) >As at 1 July 2009 (accommodating incumbents—11 commercial, eight designated community, seven national, with three-ninths total excess): >As at 30 November 2009 (after excess capacity auction):

VHF Band III spectrum congestion in major metropolitan areas VHF channels Due to interference protection requirements, no VHF channels are available for digital radio within approximately 300 km radius around metropolitan areas until analog TV switch off A Digital radio Digital TV Analog TV

VHF Band III in major metropolitan areas after restack VHF channels Services 67899A SEVEN Digital SBS Digital NINE Digital DAB+ TV Unassigned TEN Digital ABC Digital Digital radio Digital TV

Spectrum re-use limitations

>From the Explanatory Memorandum, Broadcasting Legislation Amendment (Digital Radio) Bill 2007: ‘… digital radio is unlikely to be a replacement technology for analogue services and … analogue radio services will operate alongside digital for a considerable period.’

k.m.s.e, the best of perth, Sculpture by the Sea, Bondi Photo Samantha Burns. k.m.s.e, the best of perth, Sculpture by the Sea, Bondi Photo Samantha Burns.