digital broadcasting

{{Short description|Radio frequency broadcasting technique}}

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Digital broadcasting is the practice of using digital signals rather than analogue signals for broadcasting over radio frequency bands (radio broadcasting). Digital television broadcasting (especially satellite television) is widespread.{{Citation needed|date=April 2022}} Digital audio broadcasting is being adopted more slowly for radio broadcasting where it is mainly used in Satellite radio.{{Citation needed|date=April 2022}}

Digital links, thanks to the use of data compression, generally have greater spectral efficiency than analog links. Content providers can provide more services or a higher-quality signal than was previously available.{{Citation needed|date=April 2022}}

It is estimated that the share of digital broadcasting increased from 7% of the total amount of broadcast information in 2000, to 25% in 2007.{{cite journal |url= https://www.science.org/doi/10.1126/science.1200970 |title= The World's Technological Capacity to Store, Communicate, and Compute Information |first1= Martin |last1= Hilbert |first2= Priscila |last2= López |date= 2011 |journal= Science |volume= 332 |issue= 6025 |pages= 60–65 |doi= 10.1126/science.1200970 |pmid= 21310967 |bibcode= 2011Sci...332...60H |s2cid= 206531385 |doi-access= free |url-access= subscription }} {{cite journal |url= https://www.science.org/doi/10.1126/science.1200970 |title= Supporting material |year= 2011 |doi= 10.1126/science.1200970 |pmid= 21310967 |last1= Hilbert |first1= M. |last2= López |first2= P. |journal= Science |volume= 332 |issue= 6025 |pages= 60–65 |bibcode= 2011Sci...332...60H |s2cid= 206531385 |doi-access= free |url-access= subscription }}{{cite journal |first= Martin |last= Hilbert |url= http://martinhilbert.net/WorldInfoCapacity.html |title= The World's Technological Capacity to Store, Communicate, and Compute Information |journal= Science |year= 2011 |volume= 332 |issue= 6025 |pages= 60–65 |doi= 10.1126/science.1200970 |pmid= 21310967 |bibcode= 2011Sci...332...60H |s2cid= 206531385 |doi-access= free |url-access= subscription }} Some countries have completed a Digital television transition.{{Citation needed|date=April 2022}}