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BS IEC 62104:2015 Characteristics of DAB receivers, 2019
- National foreword
- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- Figures [Go to Page]
- Figure 1 – Example of a functional block diagram of a DAB receiver
- 4 Basic implementation and functional performance requirements [Go to Page]
- 4.1 Automatic mode selection [Go to Page]
- 4.1.1 General
- 4.1.2 Requirements
- 4.2 Frequency bands
- 4.3 Channel decoder [Go to Page]
- 4.3.1 Standard receiver
- 4.3.2 Multimedia receiver
- 4.4 Service selection [Go to Page]
- 4.4.1 General
- 4.4.2 Requirements
- 4.5 Receiver reactions to a multiplex reconfiguration
- 4.6 Audio decoder [Go to Page]
- 4.6.1 General
- 4.6.2 DAB services
- 4.6.3 DAB+ services
- 4.7 Automatic switching to another ensemble
- 4.8 Response to conditional access (CA) services [Go to Page]
- 4.8.1 General
- 4.8.2 Requirements for DAB receivers without CA capabilities
- 4.9 Output for audio and other services [Go to Page]
- 4.9.1 General
- 4.9.2 Requirements
- 4.10 Display [Go to Page]
- 4.10.1 Standard receiver
- 4.10.2 Multimedia receiver
- 4.11 Text labels [Go to Page]
- 4.11.1 Standard receiver
- 4.11.2 Multimedia receiver
- 4.12 Data applications [Go to Page]
- 4.12.1 Standard receiver
- 4.12.2 Multimedia receiver
- 5 Interfaces [Go to Page]
- 5.1 General
- 5.2 RF input [Go to Page]
- 5.2.1 General
- 5.2.2 Domestic and portable receivers
- 5.2.3 Automotive receivers
- Tables [Go to Page]
- Table 1 – Performance requirement for an automotive active antenna
- 5.3 Analogue audio interface (see IEC 61938)
- 5.4 Digital audio interface (see IEC 60958-3)
- 6 Options [Go to Page]
- 6.1 General
- 6.2 Service lists
- 6.3 Display [Go to Page]
- 6.3.1 General
- 6.3.2 Service labels and service component labels
- 6.3.3 Dynamic label
- 6.3.4 Signal quality indicator
- 6.3.5 Audio coding information
- 6.4 Other receiver features [Go to Page]
- 6.4.1 Time and date
- 6.4.2 Service following
- 6.4.3 Announcements
- 6.4.4 Dynamic range control (DRC)
- 6.5 Data features [Go to Page]
- 6.5.1 Journaline
- 6.5.2 Broadcast website (BWS)
- 6.5.3 TPEG services
- 7 Minimum performance levels and measuring methods [Go to Page]
- 7.1 General conditions [Go to Page]
- 7.1.1 General – Published specifications for receivers
- 7.1.2 Power supply
- 7.1.3 Atmospheric conditions
- 7.1.4 BER measurement conditions
- 7.1.5 Acoustic onset of impairment (OOI) measurement conditions
- 7.1.6 DAB signal
- 7.1.7 Receiver classification
- Table 2 – Classification of receiver types
- 7.2 Audio part – Performance requirements [Go to Page]
- 7.2.1 General
- 7.2.2 DAB services
- 7.2.3 DAB+ services
- 7.3 RF part – Sensitivity test methods [Go to Page]
- 7.3.1 General
- 7.3.2 Baseband stream and RF conditions for BER and OOI testing
- 7.3.3 Baseband stream and listening conditions for acoustic OOI testing
- Table 3 – Conditions for BER and OOI testing
- 7.4 Sensitivity requirement using a conducted signal at node “A” [Go to Page]
- 7.4.1 General
- 7.4.2 Method of measurement (Gaussian channel) using BER
- 7.4.3 Presentation of results using BER
- Figure 2 – Block diagram for the measurement of the sensitivity and the maximum input power, using BER
- Table 4 – Conditions for acoustic OOI testing [Go to Page]
- 7.4.4 Requirements – Receiver types A2, C2, D, E2 using BER
- 7.4.5 Method of measurement (Gaussian channel) using acoustic OOI
- 7.4.6 Presentation of results using acoustic OOI
- 7.4.7 Requirements – Receiver types A2, C2, D, E2 using acoustic OOI
- Figure 3 – Block diagram for the measurement of the sensitivity and the maximum input power, using acoustic OOI
- 7.5 Sensitivity using radiated electromagnetic wave at node "N" [Go to Page]
- 7.5.1 General
- 7.5.2 Link budget transmission assumption – Non-automotive receivers
- 7.5.3 Method of measurement – Non-automotive types A1, B, C1. C2 and A2 with optional antenna
- Figure 4 – Block diagram for the measurement of free field sensitivity
- Figure 5 – Free field screened chamber measurement – Features and setup
- Table 5 – Conditions for uniform signal level [Go to Page]
- 7.5.4 Presentation of results
- 7.5.5 Requirements – Types A1, B, C1, C2 and A2 with optional antenna
- 7.5.6 Link budget transmission assumption – Automotive types D, E1, E2
- 7.6 RF part – Maximum input power [Go to Page]
- 7.6.1 General
- 7.6.2 Method of measurement (Gaussian channel)
- 7.6.3 Presentation of results
- 7.6.4 Requirements
- 7.7 RF part – Selectivity [Go to Page]
- 7.7.1 General
- 7.7.2 Adjacent channel selectivity
- Figure 6 – Spectrum mask of the DAB signal for selectivity measurements
- Table 6 – Minimum requirements for maximum input power (conducted)
- Figure 7 – Block diagram for BER method selectivity measurements
- Table 7 – Difference between the centre frequencies of the DAB ensembles [Go to Page]
- 7.7.3 Rejection of unwanted signals (far-off selectivity)
- Figure 8 – Block diagram for OOI method selectivity measurements
- Table 8 – Minimum requirement for adjacent channel selectivity
- 7.8 RF part – Performance in a Rayleigh channel [Go to Page]
- 7.8.1 General
- 7.8.2 Sensitivity
- 7.8.3 Method of measurement – Conducted input signal only
- Figure 9 – Block diagram for measuring the performance in a Rayleigh channel
- Table 9 – Channel simulation profiles related to frequency band and mode [Go to Page]
- 7.8.4 Presentation of results
- 7.8.5 Requirements
- 7.9 RF part – Acquisition time after synchronization loss [Go to Page]
- 7.9.1 General
- 7.9.2 Method of measurement
- Figure 10 – Block diagram for measuring acquisition time after synchronization loss [Go to Page]
- 7.9.3 Presentation of results
- 7.9.4 Requirements
- Annex A (informative)Recommended centre frequencies [Go to Page]
- Table A.1 – Recommended centre frequencies for DAB (1 of 2)
- Annex B (normative)Characteristics of a Rayleigh channel [Go to Page]
- B.1 Simulation of the mobile radio channel
- B.2 Doppler spectrum types [Go to Page]
- B.2.1 General
- B.2.2 Doppler spectrum: CLASS
- B.2.3 Doppler spectrum: GAUS1
- B.2.4 Doppler spectrum: GAUS2
- B.2.5 Doppler spectrum: GAUSDAB
- B.2.6 Doppler spectrum: RICE
- B.3 Propagation models [Go to Page]
- B.3.1 General
- B.3.2 Typical rural (non-hilly) area (RA)
- B.3.3 Typical urban (non-hilly) area (TU)
- Figure B.1 – Continuous delay power profile P(τ) for RA
- Figure B.2 – Continuous delay power profile P(τ) for TU
- B.4 Tap setting for hardware simulators
- Table B.1 – Four tap setting for typical rural (non-hilly) area (RA)
- Table B.2 – Six tap setting for typical rural (non-hilly) area (RA)
- Table B.3 – Twelve tap setting for typical urban (non-hilly) area (TU)
- Table B.4 – Six tap setting for typical urban (non-hilly) area (TU)
- Table B.5 – Tap setting for single-frequency networks (SFN) in VHF bands
- Annex C (informative)Basic characteristics and functionality for accessibility for blind and visually impaired users
- Bibliography [Go to Page]
