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Digital broadcasting—a 2012 roadmap
Giles TannerGeneral ManagerDigital Transition DivisionACMA
k.m.s.e, the best of perth, Sculpture by the Sea, Bondi 2011. Photo Samantha Burns.
k.m.s.e, the best of perth, Sculpture by the Sea, Bondi 2011. Photo Samantha Burns.
Australia’s digital dividend
Source: http://agencysearch.australia.gov.au/search/search.cgi?query=radiofrequency+allocations+chart&collection=agencies&form=simple&profile=acma
Yielding the digital dividend—the restack & reallocation processes
KEY ACMA BroadcastersMinister DBCDE
Start 2010
Mid 2012 End 2014Mid 2013End 2013
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
Newcastle
Sydney
Illawarra
Others
BI BII BIII BIV BV
Central Coast
KEY Digital channelsFreed up spectrum
*Newcastle
Sydney
Illawarra
Others
Central Coast
BIV BVBIIIBIIBI
18 channels
6 channel block—Newcastle, Sydney, Illawarra
6 channel block—Newcastle, Sydney, Illawarra
KEY DAB + Digital channels
*Newcastle
Sydney
Illawarra
Central Coast
BIV BVBIIIBIIBI
Block A Block C Block DBlock B Block E
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
1.536 MHz spectrum … or more if lower audio quality is OK
DAB+ multiplex shares in Sydney
2SMSuper
2DAYSCA
2MMMSCA
2UEFairfax
2KYTAB
Two-ninths reserved for community radio
Excess (256kbps)
2UUSARN
2WFMARN
2PTV DMG
2SYDDMG
2GBMacq.
2CHMacq.
Two-ninths reserved for community radio
Excess (128kbps)
2SMSuper
2DAYSCA
2MMMSCA
2UEFairfax
2KYTAB
Two-ninths reserved for community radio
2MMMSCA
(128kbps)
2DAYSCA
(64kbps)
2SM Super
(64kbps)
2UUSARN
2WFM ARN
2PTV DMG
2SYDDMG
2GBMacq.
2CHMacq.
Two-ninths reserved for community radio
2DAYSCA.
(64kbps)
2UUSARN
(32kbps)
2WFMARN
(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.
6 7 8 9 9A 10 11 12
Digital radio
Digital TV
Analog TV
VHF Band III in major metropolitan areas after restack
VHF channels
Services
6 7 8 9 9A 10 11 12
SEVEN Digital
SBS Digital
NINE Digital
DAB+ 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 2011. Photo Samantha Burns.
k.m.s.e, the best of perth, Sculpture by the Sea, Bondi 2011. Photo Samantha Burns.
