PDF The Digital Dividend of Terrestrial Broadcasting

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The plan then developed envisaged this dividend would comprise two distinct bands of spectrum:.

30 seconds of each channels on Malaysian digital terrestrial television broadcast

We have subsequently cleared aeronautical radar from channel 36 and plan to clear UK radioastronomy from channel 38 in This will extend the lower band to include the whole of MHz channels and increase the total amount of cleared spectrum in the digital dividend to MHz. Your Pages Home Phones, telecoms and internet Advice for consumers Complain about phones or internet services Information for industry Coverage TV, radio and on-demand Complain about TV, radio, a website or an app Advice for consumers Information for the TV, radio and on-demand industry Broadcasting codes Postal services Complain about postal services Advice for consumers Spectrum Spectrum management Protecting and managing the airwaves Radio spectrum and the law Spectrum information Consultations and statements Consultation response coversheet Ofcom's approach to Impact Assessment Ofcom's consultation principles Ofcom responses Sign up for our consultations bulletin Research and data Search all research and data Multi-sector research TV, radio and on-demand research Telecoms research Making Sense of Media Internet research Post research Technology research Data About Ofcom's research About Ofcom What is Ofcom?

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Add to your pages. The plan then developed envisaged this dividend would comprise two distinct bands of spectrum: a smaller, upper band of 48 MHz at MHz channels ; and a larger, lower band of 64 MHz at MHz channels , 37 and This means that after the changeover from analog to digital television, only the range MHz will still be used for UHF television broadcasting, while the MHz range will be made available for other services. The block of spectrum which will be cleared through the switchover to digital television is often referred to as the "digital dividend".

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The digital dividend spectrum is able to be cleared because digital television broadcasting makes more efficient use of the spectrum than the corresponding analog services. Currently both analog and digital television services are being broadcast, with the analog services being progressively switched off on a region-by-region basis across Australia.

More information on the switch-off. The diagram above shows the use of the affected part of the spectrum before and after the digital switch-over. There are two phases to the digital television switchover that need to be completed before the digital dividend spectrum will be clear and available for other uses. The first phase is the switch-off of analog television services.

Digital dividend: clearing the 800 MHz band

This is being done on an area-by-area basis, with the final regions to be switched off by 31 December After the switch-off is complete in each area, there will still be digital television services operating in the digital dividend frequency range. The second phase is known as the "restacking", where the digital services will be moved so they all operate below MHz.

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This process will also take place over a period of time on an area-by-area basis with the current target date for completion being the end of It should be noted that due to the area-by-area switchover, it is possible that some of the areas that are 'restacked' earlier may be made available before the process is completed everywhere else. The diagram below gives an example, illustrating how the use of the spectrum will change step-by-step through the switch-over process. The diagram is to illustrate the general concept only, and is not supposed to accurately represent any actual existing, or future, channel arrangement or rearrangement.

There will be two major blocks of spectrum which wireless audio equipment may be allowed and able to operate in:.

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The frequencies from MHz will continue to be used for terrestrial broadcasting, and the ACMA expects that the unused TV channels or 'white spaces' in this range with still be available for use by wireless audio equipment, in the same way as they are at the moment. Note that the specific arrangements of channels which will be used by digital television after the restack is still under consideration. The specific frequencies channels that are available in any given area at the moment may not be the same as those that will be available following the switchover.

Communication & Society

Much of the MHz of the digital dividend spectrum will be used for next generation mobile broadband services such as LTE and 4G. Current plans provide for 2 x 45 MHz blocks of spectrum to support next new mobile broadband services. These will be separated by a 10 MHz mid-band gap and guard bands at either end.

The guard bands and mid-band gap are currently under consideration for use to provide public safety mobile broadband capability or to accommodate services displaced as a consequence of the review.

Availability of this spectrum for wireless microphone use depends on the outcome of that review. An early indication of the possible availability of this spectrum is expected to become available in the third quarter The diagram below illustrates the spectrum arrangements in the band. However, once the results of the reviews are known the LIPD class licence will be further updated to reflect spectrum or bands that will be available for use by wireless audio equipment.

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This depends mainly on what range of frequencies your equipment is able to operate over. Equipment which operates below MHz should be able to operate just as it does at the moment, unless it happens to fall within a range that the digital channels get 'restacked' to. For devices which operate only above MHz, it will depend on the final arrangements decided on for the digital dividend spectrum. The ACMA began technical discussions with interested and affected stakeholders regarding the use of the digital dividend in