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Transcript of Digital Terrestrial Networks Presentation Outline Sentech Experience in Digital TerrestrialSentech...
Digital Terrestrial Digital Terrestrial NetworksNetworks
Presentation OutlinePresentation Outline
• Sentech Experience in Digital TerrestrialSentech Experience in Digital Terrestrial
• The Future of Terrestrial Broadcasting is The Future of Terrestrial Broadcasting is Digital Digital
• Digital Terrestrial Television (DTT) as Digital Terrestrial Television (DTT) as Stimulus for GrowthStimulus for Growth
• FeaturesFeatures
TERRESTRIAL BROADCASTING
Digital Terrestrial Television Digital Terrestrial Television Sentech Experience in Digital TerrestrialSentech Experience in Digital Terrestrial
Digital Radio (DAB)Digital Radio (DAB)
– On air since 1997On air since 1997
– 7 Services on 1 Transmitter7 Services on 1 Transmitter
– Coverage over Pretoria & Johannesburg (Coverage over Pretoria & Johannesburg ( 18% population 18% population coverage) coverage)
– Single Frequency Network established in 2001Single Frequency Network established in 2001
Digital Terrestrial Television (DTT)Digital Terrestrial Television (DTT)
– On air since 2000On air since 2000
– Mobile and Portable trialsMobile and Portable trials
– 5 Services on 1 Transmitter5 Services on 1 Transmitter
– Coverage over Johannesburg (Coverage over Johannesburg ( 12% population coverage) 12% population coverage)
Digital Terrestrial TelevisionDigital Terrestrial Television
The Future of Terrestrial Broadcasting is The Future of Terrestrial Broadcasting is DigitalDigital
• Global trend to Digital (Internet, GSM, etc)Global trend to Digital (Internet, GSM, etc)
• Telecommunication has already gone digitalTelecommunication has already gone digital
• Satellite Broadcasting has migrated to digitalSatellite Broadcasting has migrated to digital
• Digital Radio (DAB) and Television (DTT) Networks Digital Radio (DAB) and Television (DTT) Networks are rolling out world-wideare rolling out world-wide
• Growing market demand for more choice, quality, Growing market demand for more choice, quality, flexibility, mobility and interactivity flexibility, mobility and interactivity
• Analogue Networks cannot deliverAnalogue Networks cannot deliver
Digital Terrestrial Digital Terrestrial NetworksNetworks
DTT as Stimulus for Growth DTT as Stimulus for Growth
• DTT creates capacity for more services through DTT creates capacity for more services through efficient use of spectrumefficient use of spectrum
• DTT acts as stimulus to creative talent in content DTT acts as stimulus to creative talent in content and service sectors and service sectors
• Allows new services to launch at lower Allows new services to launch at lower transmission coststransmission costs
• DTT launch will stimulate local receiver DTT launch will stimulate local receiver manufacturing and distribution sectorsmanufacturing and distribution sectors
Digital Terrestrial TelevisionDigital Terrestrial TelevisionFeaturesFeatures
• Spectrum EfficiencySpectrum Efficiency
• Multi-channel CapabilityMulti-channel Capability
• Immunity to DisturbanceImmunity to Disturbance
• Portable & Mobile TVPortable & Mobile TV
• Enhanced services (such as Enhanced services (such as Electronic Programme Electronic Programme Guide) Guide)
• Lower Power OperationLower Power Operation
Digital Terrestrial TelevisionDigital Terrestrial Television NetworksNetworks
FeaturesFeatures
• Spectrum EfficiencySpectrum Efficiency
– Spectrum a finite national Spectrum a finite national resourceresource
– Digital makes far more Digital makes far more efficient use of the available efficient use of the available spectrumspectrum
– Allows for expansion and Allows for expansion and new servicesnew services
ANALOGUE ANALOGUE DIGITALDIGITAL
Digital Terrestrial TelevisionDigital Terrestrial Television
Analogue TV Analogue TV
• 8 MHz Spectrum8 MHz Spectrum
• One ServiceOne Service
• New Frequency per siteNew Frequency per site
Digital Terrestrial TV Digital Terrestrial TV
• 8 MHz Spectrum8 MHz Spectrum
• 6 or more Services6 or more Services
• Same frequency re-used in Same frequency re-used in Single Frequency Networks Single Frequency Networks
ANALOGUEANALOGUE DIGITALDIGITAL
Digital Terrestrial TelevisionDigital Terrestrial Television
Digital Terrestrial TelevisionDigital Terrestrial TelevisionFeaturesFeatures
• Spectrum EfficiencySpectrum Efficiency
• Multi-channel CapabilityMulti-channel Capability
• Immunity to DisturbanceImmunity to Disturbance
• Portable & Mobile TVPortable & Mobile TV
• Enhanced services (such as Enhanced services (such as Electronic Programme Electronic Programme Guide) Guide)
• Lower Power OperationLower Power Operation
TERRESTRIAL BROADCASTING
Digital Terrestrial TelevisionDigital Terrestrial TelevisionFeaturesFeatures
• Spectrum EfficiencySpectrum Efficiency
• Multi-channel CapabilityMulti-channel Capability
• Immunity to DisturbanceImmunity to Disturbance
• Portable & Mobile TVPortable & Mobile TV
• Enhanced services (such as Enhanced services (such as Electronic Programme Electronic Programme Guide) Guide)
• Lower Power OperationLower Power Operation
Digital Terrestrial TelevisionDigital Terrestrial Television
• Received signal quality Received signal quality affected by environmentaffected by environment
• Excellent signal qualityExcellent signal quality• Robust receptionRobust reception• Basic low-cost antennaBasic low-cost antenna
ANALOGUEANALOGUE DIGITALDIGITALFeatures Features - Immunity to Disturbance - Immunity to Disturbance
Digital Terrestrial TelevisionDigital Terrestrial TelevisionFeaturesFeatures
• Spectrum EfficiencySpectrum Efficiency
• Multi-channel CapabilityMulti-channel Capability
• Immunity to DisturbanceImmunity to Disturbance
• Portable & Mobile TVPortable & Mobile TV
• Enhanced services (such as Enhanced services (such as Electronic Programme Electronic Programme Guide) Guide)
• Lower Power OperationLower Power Operation
Digital Terrestrial TelevisionDigital Terrestrial Television
• Received signal quality Received signal quality affected by environmentaffected by environment
• Excellent signal qualityExcellent signal quality
• Robust receptionRobust reception
ANALOGUEANALOGUE (Mobile)(Mobile) DIGITAL DIGITAL (Mobile)(Mobile)
Features Features - Portable & Mobile TV - Portable & Mobile TV
Digital Terrestrial TelevisionDigital Terrestrial TelevisionFeaturesFeatures
• Spectrum EfficiencySpectrum Efficiency
• Multi-channel CapabilityMulti-channel Capability
• Immunity to DisturbanceImmunity to Disturbance
• Portable & Mobile TVPortable & Mobile TV
• Enhanced services (such as Enhanced services (such as Electronic Programme Electronic Programme Guide)Guide)
• Lower Power OperationLower Power Operation
Or?
Digital Terrestrial TelevisionDigital Terrestrial Television
Digital Terrestrial TelevisionDigital Terrestrial TelevisionFeaturesFeatures
• Spectrum EfficiencySpectrum Efficiency
• Multi-channel CapabilityMulti-channel Capability
• Immunity to DisturbanceImmunity to Disturbance
• Portable & Mobile TVPortable & Mobile TV
• Enhanced services (such as Enhanced services (such as Electronic Programme Electronic Programme Guide) Guide)
• Lower Power OperationLower Power Operation
Digital Terrestrial TelevisionDigital Terrestrial Television
• UHF Analogue TV UHF Analogue TV Transmitter at Sentech Transmitter at Sentech TowerTower
• 20 kW20 kW
• UHF DTT Transmitter at UHF DTT Transmitter at Sentech Tower Sentech Tower
• 2 kW 2 kW
• Equivalent coverage at 10% Equivalent coverage at 10% of Power of Power
ANALOGUEANALOGUE DIGITALDIGITAL
Features Features - Lower Power Operation - Lower Power Operation
Digital TerrestrialDigital Terrestrial TV TV NetworksNetworks
ANALOGUE TV AT 20 kWANALOGUE TV AT 20 kW
DTT AT 2 kWDTT AT 2 kW
Features Features - Lower Power Operation - Lower Power Operation
Thank you for Thank you for your attentionyour attention