Digital Terrestrial Networks Presentation Outline Sentech Experience in Digital TerrestrialSentech Experience in Digital Terrestrial The Future of Terrestrial.

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Presentation transcript:

Digital Terrestrial Networks Presentation Outline Sentech Experience in Digital TerrestrialSentech Experience in Digital Terrestrial The Future of Terrestrial Broadcasting is DigitalThe Future of Terrestrial Broadcasting is Digital Digital Terrestrial Television (DTT) as Stimulus for GrowthDigital Terrestrial Television (DTT) as Stimulus for Growth FeaturesFeatures

TERRESTRIAL BROADCASTING

Digital Terrestrial Television Sentech Experience in Digital Terrestrial Digital Radio (DAB) –On air since 1997 –7 Services on 1 Transmitter –Coverage over Pretoria & Johannesburg ( 18% population coverage) –Single Frequency Network established in 2001 Digital Terrestrial Television (DTT) –On air since 2000 –Mobile and Portable trials –5 Services on 1 Transmitter –Coverage over Johannesburg ( 12% population coverage)

Digital Terrestrial Television The Future of Terrestrial Broadcasting is Digital 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 are rolling out world-wideDigital Radio (DAB) and Television (DTT) Networks are rolling out world-wide Growing market demand for more choice, quality, flexibility, mobility and interactivityGrowing market demand for more choice, quality, flexibility, mobility and interactivity Analogue Networks cannot deliverAnalogue Networks cannot deliver

Digital Terrestrial Networks DTT as Stimulus for Growth DTT creates capacity for more services through efficient use of spectrumDTT creates capacity for more services through efficient use of spectrum DTT acts as stimulus to creative talent in content and service sectorsDTT acts as stimulus to creative talent in content and service sectors Allows new services to launch at lower transmission costsAllows new services to launch at lower transmission costs DTT launch will stimulate local receiver manufacturing and distribution sectorsDTT launch will stimulate local receiver manufacturing and distribution sectors

Digital Terrestrial Television Features Spectrum EfficiencySpectrum Efficiency Multi-channel CapabilityMulti-channel Capability Immunity to DisturbanceImmunity to Disturbance Portable & Mobile TVPortable & Mobile TV Enhanced services (such as Electronic Programme Guide)Enhanced services (such as Electronic Programme Guide) Lower Power OperationLower Power Operation

Digital Terrestrial Television Networks Features Spectrum EfficiencySpectrum Efficiency –Spectrum a finite national resource –Digital makes far more efficient use of the available spectrum –Allows for expansion and new services

ANALOGUEDIGITAL Digital Terrestrial Television

Analogue TV 8 MHz Spectrum8 MHz Spectrum One ServiceOne Service New Frequency per siteNew Frequency per site Digital Terrestrial TV 8 MHz Spectrum8 MHz Spectrum 6 or more Services6 or more Services Same frequency re-used in Single Frequency NetworksSame frequency re-used in Single Frequency Networks ANALOGUEDIGITAL Digital Terrestrial Television

Features Spectrum EfficiencySpectrum Efficiency Multi-channel CapabilityMulti-channel Capability Immunity to DisturbanceImmunity to Disturbance Portable & Mobile TVPortable & Mobile TV Enhanced services (such as Electronic Programme Guide)Enhanced services (such as Electronic Programme Guide) Lower Power OperationLower Power Operation

TERRESTRIAL BROADCASTING

Digital Terrestrial Television Features Spectrum EfficiencySpectrum Efficiency Multi-channel CapabilityMulti-channel Capability Immunity to DisturbanceImmunity to Disturbance Portable & Mobile TVPortable & Mobile TV Enhanced services (such as Electronic Programme Guide)Enhanced services (such as Electronic Programme Guide) Lower Power OperationLower Power Operation

Digital Terrestrial Television Received signal quality affected by environmentReceived signal quality affected by environment Excellent signal qualityExcellent signal quality Robust receptionRobust reception Basic low-cost antennaBasic low-cost antenna ANALOGUEDIGITAL Features - Immunity to Disturbance

Digital Terrestrial Television Features Spectrum EfficiencySpectrum Efficiency Multi-channel CapabilityMulti-channel Capability Immunity to DisturbanceImmunity to Disturbance Portable & Mobile TVPortable & Mobile TV Enhanced services (such as Electronic Programme Guide)Enhanced services (such as Electronic Programme Guide) Lower Power OperationLower Power Operation

Digital Terrestrial Television Received signal quality affected by environmentReceived signal quality affected by environment Excellent signal qualityExcellent signal quality Robust receptionRobust reception ANALOGUE (Mobile) DIGITAL (Mobile) Features - Portable & Mobile TV

Digital Terrestrial Television Features Spectrum EfficiencySpectrum Efficiency Multi-channel CapabilityMulti-channel Capability Immunity to DisturbanceImmunity to Disturbance Portable & Mobile TVPortable & Mobile TV Enhanced services (such as Electronic Programme Guide)Enhanced services (such as Electronic Programme Guide) Lower Power OperationLower Power Operation

Or? Digital Terrestrial Television

Features Spectrum EfficiencySpectrum Efficiency Multi-channel CapabilityMulti-channel Capability Immunity to DisturbanceImmunity to Disturbance Portable & Mobile TVPortable & Mobile TV Enhanced services (such as Electronic Programme Guide)Enhanced services (such as Electronic Programme Guide) Lower Power OperationLower Power Operation

Digital Terrestrial Television UHF Analogue TV Transmitter at Sentech TowerUHF Analogue TV Transmitter at Sentech Tower 20 kW20 kW UHF DTT Transmitter at Sentech TowerUHF DTT Transmitter at Sentech Tower 2 kW2 kW Equivalent coverage at 10% of PowerEquivalent coverage at 10% of Power ANALOGUEDIGITAL Features - Lower Power Operation

Digital Terrestrial TV Networks ANALOGUE TV AT 20 kW DTT AT 2 kW Features - Lower Power Operation

Thank you for your attention