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DAB+ Basics,DAB+ Familyof Digital Transmitters
and DAB+ Coverage
DAB Overview
What is Digital Radio?
www.elenos.com
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
The DAB Family ofStandards
www.elenos.com
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
DAB Standards
www.elenos.com
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
DAB Features
www.elenos.com
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
Other DAB Features
www.elenos.com
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)
Typical FMNetwork
www.elenos.com
100.3
98.2
97.5
104.3
102.5
102.8
93.3
100.1
95.4
95.7
103.4
101.5
100.1
92.5
2 stations using 14 FM frequencies! (example)
2 stations using totally 45 000 W ! (example)
DAB+ RF Spectrum
www.elenos.com
DAB+ Transmission Australia
www.elenos.com
DAB+ Network
www.elenos.com
20 stations using 1 DAB frequency (SFN)
20 stations using totally 10 000 W for same coverage (example)
MULTIPLEXER
SFN
Typical DAB System
www.elenos.com
Typical DAB RF System
www.elenos.com
DAB+ Transmitter
Channel Filter
Antenna System
Our Company and Technology
DAB+ Basics DAB+ Family of Digital Transmitters and DAB+ Coverage
About ELENOS…
www.elenos.com
Started in 1977……..
www.elenos.com
Our CUSTOMERS Say…
www.elenos.com
“ Very reliable products
and wonderful assistance “
FM From 150 W…
What makes us DIFFERENT?...
www.elenos.com
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
Product Compliance – ETSI and FCC
www.elenos.com
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
www.elenos.com
Other Certifications
www.elenos.com
Planar Technology
www.elenos.com
ELENOS RF design “philosophy”:
Very high efficiency in alloutput power ranges
Very low temperatures
Very long product life
ICEFET Technology…
www.elenos.com
Infrared view…
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
www.elenos.com
LIFEXTENDER Technology…
System (hardware and software) that allows
safe transmitter function in extremely tough
environmental conditions, maintaining
performance standards.
www.elenos.com
LIFEXTENDER Technology…
www.elenos.com
Non- Corrosive Design
www.elenos.com
Power Supplies
www.elenos.com
RF and Low Pass Filter Design
www.elenos.com
Exciter Technology – Digital Option
www.elenos.com
Direct-To-Channel Digital Exciter Technology
www.elenos.com
Total Control
Lumina
Galaxy Tab
Galaxy Phone
iPad/iPad Mini
iPhone
www.elenos.com
ECHOS3-EBOX Total Control…
www.elenos.com
REMOTE MONITOR & CONTROL…
DAB+ 4RU Products
www.elenos.com
DAB 300/600… 1200
300 or 600 Watts of power in a 4U chassissavesthat precious space at
your transmitter site
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
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
www.elenos.com
DAB300/ DAB600 …
www.elenos.com
Front Panel…
www.elenos.com
Rear Panel…
www.elenos.com
Interfaces.........
Antenna Coverage Maps Reference –
Frank W. Massa
APAC Sales Manager 2/2014
www.elenos.comwww.elenos.com
General Reference
• FM Coverage Criteria
– The required minimum field strength to provide a
good stereo signal is:
• 34.4 dBμV/m
DAB Coverage – 300 Watts, 8 dB Antenna 120 m
www.elenos.comwww.elenos.com
UdonThaniCoverage
35-55 dBµV/m
55-75 dBµV/m
75-100 dBµV/m
Legend
DAB Coverage – 600 Watts, 8 dB Antenna 120 m
www.elenos.comwww.elenos.com
UdonThaniCoverage
35-55 dBµV/m
55-75 dBµV/m
75-100 dBµV/m
Legend
DAB Coverage – 1200 Watts, 8 dB Antenna 120 m
www.elenos.comwww.elenos.com
UdonThaniCoverage
35-55 dBµV/m
55-75 dBµV/m
75-100 dBµV/m
Legend
DAB Coverage – 300 Watts, 8 dB Antenna 120 m
www.elenos.comwww.elenos.com
NakhonRatchasima Coverage
35-55 dBµV/m
55-75 dBµV/m
75-100 dBµV/m
Legend
DAB Coverage – 600 Watts, 8 dB Antenna 120 m
www.elenos.comwww.elenos.com
NakhonRatchasima Coverage
35-55 dBµV/m
55-75 dBµV/m
75-100 dBµV/m
Legend
DAB Coverage – 1200 Watts, 8 dB Antenna 120 m
www.elenos.comwww.elenos.com
NakhonRatchasima Coverage
35-55 dBµV/m
55-75 dBµV/m
75-100 dBµV/m
Legend
DAB Coverage – 300 Watts, 8 dB Antenna 120 m
www.elenos.comwww.elenos.com
Bangkok Coverage
35-55 dBµV/m
55-75 dBµV/m
75-100 dBµV/m
Legend
DAB Coverage – 600 Watts, 8 dB Antenna 120 m
www.elenos.comwww.elenos.com
Bangkok Coverage
35-55 dBµV/m
55-75 dBµV/m
75-100 dBµV/m
Legend
DAB Coverage – 1200 Watts, 8 dB Antenna 120 m
www.elenos.comwww.elenos.com
Bangkok Coverage
35-55 dBµV/m
55-75 dBµV/m
75-100 dBµV/m
Legend
Prepared by:
Frank W. Massa
Asia Pacific Sales
Elenos / 305 Broadcast
M: +66 83 618-9333
T: +1 831 264-4159
f.massa@elenos.com
Skype: fstarport
Twitter: @fstarport

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