3. What is Digital Radio?
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Radio has traditionally been delivered by AM and FM
•AM – 1920s (MW : 531 - 1611kHz)
•FM – 1940s (Band II : 87.5 – 108MHz)
Multiple Digital Radio standards
-DAB / DAB+ / T-DMB
-DRM / DRM+
-HD
-ISDB-T
DAB family of standards have the widest acceptance, the most
available receivers, the widest choice of infrastructure and the
overall lowest cost
4. The DAB Family ofStandards
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The Eureka Family of Standards
• DAB : 1995 Original audio with PAD and data services standard
• T-DMB : 2006 Added video services for Mobile TV and enhanced
data streaming
• DAB+ : 2007 Enhanced audio service efficiency
Why DAB+?
• 2.5 times more audio services than DAB due to the use of HE AAC+ v2
• Slightly better coverage – 1 to 2dB better than DAB – better FEC coding
• More flexibility for Programme Associated Data delivery
• PAD content has much stronger error protection
5. DAB Standards
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For detailed description of the DAB+ system refer to the following ETSI
standards documents
•EN 300 401 Main document
•TR 101 496-1, -2, -3 Guidelines of use and operation
•TS 102 563 Transport of AAC audio
6. DAB Features
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More stations with digital quality sound
The ability to select a service (station) from a list
The ability to broadcast Program Associated Data
• Text
• Images
• Information is transmitted with the audio stream
The ability to broadcast independent Data Services
• Electronic Program Guide
• Journaline
• Customer applications, e.g. Financial data, Education data
7. Other DAB Features
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Program information
- Announcements (verbal interruptions to normal program)
- Traffic
- News and Weather
- Emergency warnings
- Program type
- Rock, Light Classics, Country, Current Affairs, News etc
o Multiple Languages supported
Ensemble identifiers
- Ensemble ID
- Frequency used
- Region ID
- Service ID
- Transmitter Identification (TII code)
20. What makes us DIFFERENT?...
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o We build our own power supplies to
maintain the highest quality standard
o Planar technology:
Reduced number of parts
Reduced failure
Reduced heat consumption
Increased efficiency
o Tropicalized Circuit Boards
o Icefet, Ecosavings lifeXtender
21. Product Compliance – ETSI and FCC
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o EN 60215 Health and Safety Requirements
o EN301 489-1 Electromagnetic Compatibility
o EN 302 018-2 Measures for the Efficient Use of
the radio Frequency Spectrum
o FCC Part 73.801 Low Power FM Broadcast
Stations (LPFM)
o EN 300 401 DAB
24. www.elenos.com
ELENOS RF design “philosophy”:
Very high efficiency in alloutput power ranges
Very low temperatures
Very long product life
ICEFET Technology…
26. www.elenos.com
ECOSAVING Quality…
The new generation of transmitters by ELENOS that
are highly efficient, resulting in a big advantage for
the ecology and for the cost of operation.
A “Win-Win” Combination
39. www.elenos.com
DAB 300/600 Product Features
Compact dimensions
4U racksize
Weight max 38Kg (83.87Lbs)
Easy to install and maintain
AirCooled –Six Intelligent Fans
Remotable Control and Management
Energy saving, Ecosaving
Pwrconsumption: DAB600 2 KW
40. www.elenos.com
DAB 300/600 Product Features
SFN/MFN Network Operation
Delay Compensation 1s, Steps 100 ns
Adaptive Precorection (non Linear)
Adjustable Crest Factor Reduction (PAPR)
Direct-toChannel Digital Exciter
High MER – 33 dB
DAB, DAB+. T-DMBSupported Standards
DAB Modes I, II, III, IV