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BS EN 62106:2015

$215.11

Specification of the radio data system (RDS) for VHF/FM sound broadcasting in the frequency range from 87,5 MHz to 108,0 MHz

Published By Publication Date Number of Pages
BSI 2015 176
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This International Standard describes the Radio Data System, RDS, intended for application to VHF/FM sound broadcasts in the range 87,5 MHz to 108,0 MHz which may carry either stereophonic (pilot-tone system) or monophonic programmes (as stated in ITU-R Recommendation BS 450-3 and ITU-R Recommendation BS.643-3). The main objectives of RDS are to enable improved functionality for FM receivers and to make them more user-friendly by using features such as Programme Identification, Programme Service name display and, where applicable, automatic tuning for portable and car radios, in particular. The relevant basic tuning and switching information therefore has to be implemented by the type 0 group (see 6.1.5.1), and it is not optional unlike many of the other possible features in RDS.

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PDF Pages PDF Title
6 CONTENTS
13 FOREWORD
15 INTRODUCTION
16 1 Scope
2 Normative references
3 Abbreviations
17 4 Modulation characteristics of the data channel (physical layer)
4.1 General
18 4.2 Subcarrier frequency
Figures
Figure 1 – Block diagram of radio-data equipment at the transmitter
19 4.3 Subcarrier phase
4.4 Subcarrier level
4.5 Method of modulation
4.6 Clock-frequency and data-rate
Figure 2 – Block diagram of a typical radio-data receiver/decoder
20 4.7 Differential coding
4.8 Data-channel spectrum shaping
Tables
Table 1 – Encoding rules
Table 2 – Decoding rules
21 Figure 3 – Amplitude response of the specified transmitter or receiver data-shaping filter
22 Figure 4 – Amplitude response of the combined transmitter and receiver data-shaping filters
Figure 5 – Spectrum of biphase coded radio-data signals
23 5 Baseband coding (data-link layer)
5.1 Baseband coding structure
Figure 6 – Time-function of a single biphase symbol
Figure 7 – 57 kHz radio-data signals
24 5.2 Order of bit transmission
Figure 8 – Structure of the baseband coding
Figure 9 – Message format and addressing
25 5.3 Error protection
5.4 Synchronisation of blocks and groups
26 6 Message format (session and presentation layers)
6.1 Addressing
6.1.1 Design principles
6.1.2 Principal features
27 6.1.3 Group types
Table 3 – Group types
28 Table 4 – Main feature repetition rates
29 6.1.4 Open data channel/Applications Identification
Table 5 – Group repetition rates
30 Figure 10 – ODA version A groups
Table 6 – ODA group availability signalled in type 3A groups
31 6.1.5 Coding of the group types
Figure 11 – ODA version B groups
Figure 12 – Basic tuning and switching information – Type 0A group
Figure 13 – Basic tuning and switching information – Type 0B group
33 Figure 14 – Programme item number and slow labelling codes – Type 1A group
34 Figure 15 – Programme Item Number – Type 1B group
Figure 16 – RadioText – Type 2A group
35 Figure 17 – RadioText – Type 2B group
36 Figure 18 – Application identification for open data – Type 3A group
37 Figure 19 – Open data – Type 3B group
38 Figure 20 – Clock-time and date transmission – Type 4A group
Figure 21 – Open data – Type 4B group
39 Figure 22 – Transparent data channels – Type 5A group
Figure 23 – Transparent data channels – Type 5B group
40 Figure 24 – In-house applications – Type 6A and 6B group
Figure 25 – Radio paging – Type 7A group
41 Figure 26 – Type 7B group
Figure 27 – Traffic message channel – Type 8A group
Figure 28 – Open data – Type 8B group
42 Figure 29 – Allocation of EWS message bits – Type 9A group
Figure 30 – Open data – Type 9B group
43 Figure 31 – Programme type name PTYN – Type 10A group
Figure 32 – Open data – Type 10B group
44 Figure 33 – Open data – Type 11A and 11B groups
Figure 34 – Open data – Type 12A and 12B groups
45 Figure 35 – Enhanced paging information – Type 13A group
Table 7 – STY codes
46 Figure 36 – Open data – Type 13B group
Figure 37 – Enhanced other networks information – Type 14A groups
47 Figure 38 – Enhanced Other Networks information – Type 14B groups
Figure 39 – Open data – Type 15A group
48 6.2 Coding of information
6.2.1 General
6.2.2 Coding of information for control
Figure 40 – Fast basic tuning and switching information – Type 15B group
49 Table 8 – Codes for TP and TA
Table 9 – Bit d0 to d3 meanings
50 Table 10 – VHF code table
Table 11 – Special meanings code table
Table 12 – Code tables according to ITU regions;LF/MF code table – For ITU regions 1 and 3 (9 kHz spacing)
51 Table 13 – Code tables according to ITU regions;MF code table – For ITU region 2 (10 kHz spacing)
56 Figure 41 – Structure of Block 3 of Type 1A groups
57 Figure 42 – Structure of variant 12 of block 3 of type 14A groups(linkage information) – National link
Figure 43 – Structure of variant 12 of block 3 of type 14A groups(linkage information) – International link
58 6.2.3 Coding and use of information for display
6.2.4 Coding of clock time and date (CT)
59 6.2.5 Coding of information for Transparent Data Channels (TDC)
6.2.6 Coding of information for in house applications (IH)
6.2.7 Coding of Radio Paging (RP)
60 6.2.8 Coding of Emergency Warning Systems (EWS)
Figure 44 – Structure of Variant 7 of Block 3 of type 1A groups forIdentification of a programme carrying EWS information
61 7 Description of features
7.1 Alternative frequencies list (AF)
7.2 Clock Time and date (CT)
7.3 Decoder Identification (DI) and dynamic PTY Indicator (PTYI)
7.4 Extended Country Code (ECC)
7.5 Enhanced Other Networks information (EON)
7.6 Emergency Warning System (EWS)
7.7 In House application (IH)
62 7.8 Music Speech switch (MS)
7.9 Open Data Applications (ODA)
7.10 Programme Identification (PI)
63 7.11 Programme Item Number (PIN)
7.12 Programme Service name (PS)
7.13 Programme Type (PTY)
7.14 Programme Type Name (PTYN)
7.15 Radio Paging (RP)
7.16 RadioText (RT)
7.17 Enhanced RadioText (eRT)
64 7.18 RadioText Plus (RT+)
7.19 Traffic Announcement identification (TA)
7.20 Transparent Data Channels (TDC)
7.21 Traffic Message Channel (TMC)
7.22 Traffic Programme identification (TP)
8 Marking
66 Annexes
Annex A (normative)Offset words to be used for group and block synchronisation
Table A.1 – Offset word codes
67 Annex B (informative)Theory and implementation of the modified shortened cyclic code
B.1 General
B.2 Encoding procedure
B.2.1 Theory
68 Figure B.1 – Generator matrix of the basic shortened cyclic code in binary notation
69 B.2.2 Shift-register implementation of the encoder
B.3 Decoding procedure
B.3.1 Theory
Figure B.2 – Shift-register implementation of the encoder
70 Figure B.3 – Parity-check matrix of the basic shortened cyclic code
71 B.3.2 Implementation of the decoder
Figure B.4 – Shift-register implementation of the decoder
Table B.1 – Offset word syndromes using matrix of Figure B.3
73 Annex C (informative) Implementation of group and block synchronisation using the modified shortened cyclic code
C.1 Theory
C.1.1 Acquisition of group and block synchronisation
C.1.2 Detection of loss of synchronisation
C.2 Shift register arrangement for deriving group and block synchronisation information
74 Figure C.1 – Group and block synchronisation detection circuit
75 Table C.1 – Offset word syndromes for group and block synchronisation
76 Annex D (normative)Programme identification codes and extended country codes
D.1 General
D.2 PI structure
D.3 Extended country codes
Figure D.1 – PI structure
Table D.1 – PI code structure
77 D.4 Country codes: ‘Nibble 1’
Figure D.2 – Structure of Variant 0 of Block 3 of type 1A groups (ECC)
78 Figure D.3 – European Broadcasting Area – Correspondence between geographical locations and the symbols used
79 Table D.2 – European Broadcasting Area – Symbols used for ECC and PI country codes
80 D.5 Programme in terms of area coverage(codes for fixed location transmitters only): ‘Nibble 2’
D.6 Programme reference number: ‘Nibbles 3 and 4’
Table D.3 – Area coverage codes
Table D.4 – Programme reference number codes
81 D.7 PI codes for low-power short range transmitting devices
Table D.5 – PI codes for short range transmitting devices
82 Annex E (normative)Basic and extended RDS character sets
Table E.1 – Basic RDS character set
83 Table E.2 – Non-transmitted UCS-2 equivalents (1 of 7)
89 Table E.3 – Extended RDS character set, for eRT only (1 of 13)
102 Annex F (normative)Programme type codes
Table F.1 – Programme type codes and corresponding terms for display
105 Annex G (informative)Conversion between time and date conventions
Figure G.1 – Conversion routes between Modified Julian Date (MJD) and Coordinated Universal Time (UTC)
Table G.1 – Symbols used
107 Annex H (informative)ARI (Autofahrer-Rundfunk-Information) system –Discontinuation
108 Annex J (normative)Language identification
Figure J.1 – Language identification code allocation
Table J.1 – Language identification codes
110 Annex K (informative)RDS logo
111 Annex L (informative)Open data registration
114 Annex M (normative)Coding of Radio Paging (RP)
M.1 General
M.2 Basic paging protocol
M.2.1 Coding characteristics for paging
115 M.2.2 Transmitter network group designation
M.2.2.1 General
Table M.1 – Pager group codes
116 M.2.2.2 Transmission sequence (battery saving)
117 M.2.3 Locking to a channel
M.2.4 Loss of synchronization
M.2.5 Group type 7A message format
M.2.5.1 General
Figure M.1 – Group type 7A message format for radio paging
118 M.2.5.2 Paging without an additional message
M.2.5.3 Paging with an additional numeric message
Figure M.2 – Group type 7A paging without an additional message
Table M.2 – Codes for additional message content
119 Figure M.3 – Group type 7A paging with an additional 10 digit message
Figure M.4 – Group type 7A paging with an additional 18 digit message
Table M.3 – Paging segment address codes for 10 and 18 digit messages
120 M.2.5.4 Paging with an additional alphanumeric message
Figure M.5 – Group type 7A paging with an additional alphanumeric message
Table M.4 – Paging segment address codes for alphanumeric messages
121 M.2.5.5 International paging with an additional numeric 15 digit message
Figure M.6 – Group type 7A paging with an additional international 15 digit message
Table M.5 – Paging segment address codes for international 15 digit messages
122 M.2.5.6 Functions message in international paging
Figure M.7 – Functions message in international paging
Table M.6 – Paging segment address codes for functions message
123 M.3 Enhanced paging
M.3.1 General
M.3.2 Multi-operator/area paging
M.3.2.1 General
M.3.2.2 Paging area code
M.3.2.3 Operator code
124 M.3.2.4 Extended country code
M.3.2.5 Description of usage of 1A group variants for paging
Figure M.8 – Variant 0 of 1A group with PIN
125 Figure M.9 – Variant 2 of 1A group with PIN
126 M.3.2.6 Compatibility with other RDS applications and timing of 1A groups
Figure M.10 – Variants of 1A group without PIN
Table M.7 – Sub-usage codes
128 M.3.2.7 Services using multi-operator/area
129 M.3.2.8 Locking criteria
M.3.2.9 Loss of synchronization
M.3.2.10 International paging
130 M.3.3 Extension of paging addressing mode
M.3.4 Battery saving mode
M.3.4.1 Overview
M.3.4.2 Message notification/13A groups subtype description
Table M.8 – Group designation codes
131 Table M.9 – Cycle selection codes
132 M.3.4.3 One or two minute cycles
Figure M.11 – Group type 13A
Table M.10 – Message sorting codes
133 M.3.4.4 Organisation of the messages within an interval
M.3.4.5 Battery saving mode criteria
M.3.5 Group type 7A message format
M.3.5.1 General
134 M.3.5.2 Paging without additional message: Tone-only message
M.3.5.3 Paging with additional variable-length message
Figure M.12 – Group type 7A paging with tone-only message
Table M.11 – Codes for message types
135 Figure M.13 – First 7A group of a variable-length message
Table M.12 – Description of the control byte
136 M.3.5.4 National paging with additional alphanumeric message
Figure M.14 – Group type 7A national paging with additional alphanumeric message
Table M.13 – Use of paging call repetition flag
137 M.3.5.5 National paging with additional variable-length numeric message
Table M.14 – Paging segment address codes for alphanumeric message
138 Figure M.15 – Group type 7A national paging with additional variable-length numeric message
Table M.15 – Paging segment address codes for variable length numeric message
139 M.3.5.6 National paging with additional variable-length functions message
Figure M.16 – Group type 7A national paging with additionalvariable-length functions message
Table M.16 – Paging segment address codes for national paging with variable-length functions message
140 M.3.5.7 International paging with additional variable-length message
Figure M.17 – The two first 7A groups of an international alphanumeric message
141 Figure M.18 – The two first 7A groups of an internationalvariable-length numeric message
Figure M.19 – The two first 7A groups of an internationalvariable-length functions message
142 M.3.6 Address notification bit versus pager individual address
Table M.17 – Address notification (50 bit)
143 M.4 Examples of the traffic handling capacity of the specified radio paging system
Table M.18 – Address notification (25 bit)
Table M.19 – Z3 parity relationship
144 Figure M.20 – Traffic handling capacity, busy hour, call rate = 0,10 calls/pager/hour
145 Figure M.21 – Traffic handling capacity, busy hour, call rate = 0,067 calls/pager/hour
Figure M.22 – Traffic handling capacity, busy hour, call rate = 0,05 calls/pager/hour
146 Annex N (normative)Country codes and extended country codes for countriesoutside the European Broadcasting Area
N.1 African Broadcasting Area
148 N.2 Allocations of symbols for countries in ITU Region 2
150 N.3 Allocations of symbols for countries in ITU Region 3
152 Annex P (normative)Coding of RadioText Plus information (RT+)
P.1 General
P.2 Definitions
Table P.1 – RT+ information elements
153 P.3 RT+ tag
154 P.4 RT+ information elements and data model
P.4.1 General
P.4.2 List of RT/eRT content types
155 P.4.3 Structures of RT+ messages
156 P.4.4 Receiver data model
157 P.5 Coding RT+ in ODA groups
P.5.1 General
Figure P.1 – RT+ information of the category ‘Item’ (see Table P.2) will be attachedto the programme elements Item 1 and Item 2
Figure P.2 – RT+ information of the category ‘Item’ will be attached to the programme elements Item 1 and Item 2, but not to the programme element News
Figure P.3 – RT+ information of the category ‘Item’ will be attached only to the programme element Item 1, but not to the programme element Talk
158 P.5.2 RT+ identification (Group type 3A)
Figure P.4 – Bit allocation for group 3A (message bits and AID)
159 P.5.3 Coding of the RT+ tag
Figure P.5 – Coding of the message bits of the application group
160 P.5.4 Clearing of RT+ messages
161 Table P.2 – Code list and ‘RT+ class’ description of ‘RT/eRT content types (1 of 3)
163 P.6 Broadcasting conventions
P.7 Receiving conventions
164 P.8 Marking
165 Annex Q (normative)Coding of enhanced RadioText (eRT)
Q.1 General
Q.2 Coding eRT in ODA groups
Q.2.1 General
Q.2.2 eRT identification (Group type 3A)
Table Q.1 – eRT information elements
166 Q.2.3 Coding of the eRT text string
Q.2.3.1 General coding conventions
Figure Q.1 – Bit allocation for group 3A (message bits and AID)
167 Figure Q.2 – Coding of the message bits of the application group
168 Q.2.3.2 UCS-2 coding
Q.2.3.3 UTF-8 coding
Q.3 Broadcasting conventions
169 Q.4 Receiving conventions
Q.5 Marking
170 Annex R (informative)RBDS in the USA
171 Annex S (normative)List of RDS specific abbreviations
172 Bibliography
BS EN 62106:2015
$215.11