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Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 DTT Broadcasting Ecosystem Alan B Downie Broadcast Engineering Consultant.

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Presentation on theme: "Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 DTT Broadcasting Ecosystem Alan B Downie Broadcast Engineering Consultant."— Presentation transcript:

1 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 DTT Broadcasting Ecosystem Alan B Downie Broadcast Engineering Consultant Commonwealth Broadcasting Association

2 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Ecosystem a living community of plants and animals sharing an environment and interacting with non-living elements such as climate and soil

3 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Broadcasting Ecosystem a living community of sound image text and moving-pictures creators and distributors (electronic media) who share an environment and interact with national and international regulations and consumers

4 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 How did we get here?

5 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 A very short history of television

6 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Guglielmo Marconi Italy 1901 Transatlantic transmissions

7 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 John Logie Baird Scotland ( ) First public demonstration January 1926, London ( 1920, Santa Cruz, Trinidad )

8 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Mechanical scanningPaul Gottlieb NipkowJan 1884 Cathode ray tubeKarl Ferdinand Braun1897 Distant Electric VisionCampbell SwintonJune 1908 First imagesJohn Logie Baird1920 Public DemonstrationJohn Logie Baird27 Jan 1926 First transmission, 40 linesKenjiro TakayanagiDec 1926

9 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 First public service, 30 linesJohn Logie Baird22 Aug lines service, New YorkVladimir Zworykin line service, BerlinMar line service, UKBBC2 Nov line service, USA line system German Forces, Paris

10 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr line system UKlate 1940s 819 lines service, Franceearly 1950s 625 lines service, Europe mid 1960s 1125 lines service, Japan NHK early 1980s 1250 lines system, Europe late 1980s 1080 line system Common Image Standardlate 1990s

11 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Evolution Not Revolution

12 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 If you cant beat them, join them Go digital ……….. Fund the change Make the change Keep it going Decide to change

13 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Digital content available in the home. In particular educational content Ability to connect schools and other public entities Promotion of e-government services Bringing the internet to the people Open standards facilitating new entrants DTT Opportunity

14 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 DTT is an infrastructure project National network providing a media / communication gateway into the home

15 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012

16 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Public Perception

17 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Edinburgh Trams

18 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Petrol Shortage

19 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Climate Change

20 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Regulation

21 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Michael Starks

22 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Transmission

23 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012

24 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Congestion in The Spectrum

25 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr The UK spectrum band – MHz 112 MHz of cleared spectrum (14 x 8 MHz) Channel Frequency (MHz ) Channel 36 – currently used mainly for airport radar Channel 38 – currently protected for radio- astronomy in UK and Netherlands Channel 69 – currently used for equipment such as wireless microphones 256 MHz already assigned to six DTT multiplexes (32 x 8 MHz - but some white space available within this)

26 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr The UK spectrum band – 800 MHz clearance plan Channel Frequency (MHz ) Channel 69: to be cleared of PMSE Channel 38: to be allocated for PMSE Channel 61 & 62: to be cleared of DTT Channel 39 and 40: to be allocated for DTT PMSE = Programme Making and Special Events

27 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012

28 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Spectrum is standards agnostic

29 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 UK switch-over plan The network is based on 16 multiple-frequency networks (MFNs). the Use of UK-wide single- frequency networks (SFNs) was ruled out because of the different programme services required in the 16 different regions The frequencies, ERPs, radiation patterns and other characteristics of the transmitting stations were calculated largely by prediction using software tools As far as possible, public-service digital signals are transmitted on the same frequencies from the same stations as analogue, to minimise changes to receiving antenna installations Digital ERPs (average power) are generally 10 dB lower than PAL (peak-sync) power, but transmitters require 6 to 10 dB back-off for DVB-T … so power amplifiers need to be rated for similar powers to analogue A DTV multiplex with 6 channels will require greater electrical power than the equivalent analogue channel but the power per digital channel will be less All 1150 existing transmitting stations will be used

30 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 The Digital Dividend What exactly does the broadcaster get ? Extra work Extra Cost All the blame The government gets cash and the telcos get cash and all the kudos The Telcos get the cash from users interacting with broadcasters ………online news, reality programme phone- ins, twitter comments to friends and second-screen What exactly do the others get ?

31 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 The Digital Dividend It is the broadcaster who delivers the message free to all In an emergency situation it is the broadcaster who delivers the message Allocating Spectrum Fair Play for everyone Broadcasting is essential national infrastructure

32 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Programmes

33 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 The Broons Grampa Hen, Joe, Daphne, Maggie Ay twin, Ither twin Maw, Paw, Horace The Bairn The Digital Family ©D C Thompson Ltd The Sunday Post

34 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Lots of Programmes BBC 1,2,3,4,AlbaCBBC, Cbeebies,Red ButtonNews ITV 1,2 C4 E4 FiveSkyHD variantsParliament Shopping ++++ Sports channelsCommunity Teachers Nostalgia Religious Factual Adult Mobile phone chatMusic ++Film ComedyForeign Pay / SubscriptionRadio TV 35 Radio

35 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Lots of Options 16:914:9letterbox pillarboxSafe areaHD SD3DHi-vision Red buttonEPGMobile SubtitlesRadioLanguages Closed captionsSignedDescriptive

36 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Consumer

37 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012

38 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr Communication is the key! (Source: OFCOM, UK) Consumer awareness plan in UK Countdown: Switchover is happening! Switchover to 100% digital How to get ready! Are you ready? Get ready! Countdown: Switchover is here! 3-Years2-Years1-Year<12 months1 monthSwitchover National Launch of SwitchCo

39 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Cooperation is a must! Get everyone involved in ALL process Governments and regulators Public Service Broadcasters Private and commercial broadcasters Cable and satellite platforms Manufacturers of professional and consumer equipment Retailers and antenna installers

40 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Vanilla STB - cheap and cheerful Basic box of tricks Just a tuner unit Probably no CAM for pay-tv Capable of 12volt battery power Has UHF and maybe SCART output

41 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Strawberry STB – a bit better A tuner unit Maybe with CAM for pay-tv Capable of 12volt battery power Has UHF and SCART outputs Has USB port for memory stick

42 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Chocolate STB – a whole lot better A tuner unit With CAM for pay-tv Capable of 12volt battery power Has UHF and SCART outputs Has USB port for memory stick Has USB port for Mobile phone dongle

43 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Whisky STB – top of tree A tuner unit With CAM for pay-tv Capable of 12volt battery power Has UHF and SCART and HDMI outputs Has USB port for memory stick Has USB port for Mobile phone dongle Has hard disk for recording

44 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Support is vital! Education Technical Financial Policy/legal

45 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 NOT A BIG ISSUE – STILL A BIG TASK. You will be judged by perception as much as technical success. Therefore advance communication and engagement in the field is crucial. Make your communications engaging. Regard switchover as an opportunity to enhance the reputation of the broadcasting industry – not a threat that may damage it. PRACTICAL LESSONS FROM THE FIELD

46 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 The CBA Sally-Ann Wilson, CBA Secretary General

47 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 OBJECTIVES OF THE CBA To support freedom of expression and the ideals of public service broadcasting. To facilitate information and knowledge exchange between media organisations and their employees. To provide assistance to member organisations via training, bursaries, consultancies, networking opportunities and content sharing initiatives.

48 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Digital Switchover Workshops and Forum CBA CTO CBU CTU et al August 2012, Antigua

49 Alan B Downie for CTU Port of Spain, Trinidad, 2Apr2012 Thank You Alan B Downie Broadcast Engineering Consultant Commonwealth Broadcasting Association And thanks to my many colleagues who have given help and shared their knowledge with me of which some is incorporated into this presentation


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