BS EN 62106:2015
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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 |
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.
PDF Catalog
PDF Pages | PDF Title |
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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 |