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BS IEC 62106-2:2021 Radio data system (RDS). VHF/FM sound broadcasting in the frequency range from 64,0 MHz to 108,0 MHz - Message format: coding and definitions of RDS features, 2021
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- CONTENTS
- FOREWORD
- INTRODUCTION
- 1 Scope
- 2 Normative references
- 3 Terms, definitions, abbreviated terms and conventions [Go to Page]
- 3.1 Terms and definitions
- 3.2 Abbreviated terms
- 3.3 Notation and conventions
- 4 Message format [Go to Page]
- 4.1 Design principles
- 4.2 Group structure [Go to Page]
- 4.2.1 Group type A structure
- Figure 1 – Group type A structure [Go to Page]
- 4.2.2 Group type B structure
- 4.2.3 Group type C structure
- Figures [Go to Page]
- Figure 2 – Group type B structure
- Figure 3 – Group type C structure [Go to Page]
- 4.2.4 RFT ODA pipe/channel
- Tables [Go to Page]
- Table 1 – Group type C Function Header definition
- 4.3 Group type A and B usage
- Table 2 – Group type A and B usage
- 4.4 Group type C usage [Go to Page]
- 4.4.1 Transmitting legacy data using data-streams 1, 2 and 3
- 4.4.2 Transmitting group type C ODA data
- Figure 4 – Tunnelling structure for group types A and B [Go to Page]
- 4.4.3 AID and channel number assignment for group type C ODAs
- Table 3 – Group type C assignment methods used to connect channel numbers with one or more AIDs
- 5 Description of the RDS features [Go to Page]
- 5.1 Alternative Frequencies list (AFs)
- 5.2 Clock Time and date (CT)
- 5.3 Dynamic PTY Indicator (PTYI) using DI
- 5.4 Extended Country Code (ECC)
- 5.5 Enhanced Other Networks information (EON)
- Table 4 – Assignment of up to three successive channel numbers to multiple AIDs
- 5.6 Linkage information
- 5.7 Open Data Applications (ODAs)
- 5.8 Programme Identification (PI)
- 5.9 Programme Service name – (PS)
- 5.10 Long Programme Service name – (LPS)
- 5.11 Programme Type (PTY)
- 5.12 Programme Type Name (PTYN)
- 5.13 RadioText (RT)
- 5.14 enhanced RadioText (eRT)
- 5.15 RadioText Plus (RT+ and eRT+)
- 5.16 Traffic Programme identification (TP)
- 5.17 Traffic Announcement identification (TA)
- 5.18 Traffic Message Channel (TMC)
- 6 Coding of the group types [Go to Page]
- 6.1 Groups of type 0A and 0B: Basic tuning and switching information with PS name
- Figure 5 – Basic tuning and switching information – Group type 0A
- 6.2 Group type 1A: Slow labelling codes
- Figure 6 – Basic tuning and switching information – Group type 0B
- Figure 7 – Slow labelling codes – Group type 1A
- 6.3 Group type 2A and 2B: RadioText
- Figure 8 – RadioText – Group type 2A
- 6.4 Group type 3A: Application identification for any specific ODA using groups of type A or B
- 6.5 Group type 4A: Clock-Time and date
- Figure 9 – RadioText – Group type 2B
- Figure 10 – Application identification for any specific ODA – Group type 3A
- 6.6 Group type 10A: Programme Type Name PTYN
- Figure 11 – Clock-Time and date transmission – Group type 4A
- Figure 12 – Programme Type Name PTYN – Group type 10A
- 6.7 Group type 14A and B: Enhanced Other Networks information (EON)
- 6.8 Group type 15A: Long Programme Service name – 32 bytes with UTF-8 coding
- Figure 13 – Enhanced Other Networks information – Group type 14A
- Figure 14 – Enhanced Other Networks information – Group type 14B
- 6.9 Group type 15B: Fast basic tuning and switching information
- Figure 15 – Long PS, UTF-8 coded – Group type 15A
- Figure 16 – Fast basic tuning and switching information – Group type 15B
- 7 Coding of RDS features for control [Go to Page]
- 7.1 Programme Identification (PI) codes and Extended Country Codes (ECC) [Go to Page]
- 7.1.1 PI structure
- 7.1.2 Country Identifier (CI) codes: 'Nibble 1'
- 7.1.3 Extended Country Codes (ECC)
- Figure 17 – PI code structure [Go to Page]
- 7.1.4 Programme service in terms of area coverage (codes for fixed location transmitters only): 'Nibble 2'
- 7.1.5 Programme reference number: 'Nibbles 3 and 4'
- 7.1.6 PI codes for low-power short range transmitting devices
- Table 5 – Area coverage codes
- Table 6 – Programme service reference number codes
- 7.2 Programme Type (PTY) codes
- 7.3 Traffic Programme (TP) and Traffic Announcement (TA) codes
- 7.4 Decoder Identification (DI) and dynamic PTY Indicator (PTYI) codes
- Table 7 – PI codes for short range transmitting devices
- Table 8 – Codes for TP and TA
- 7.5 Coding of Alternative Frequencies (AFs) [Go to Page]
- 7.5.1 AF code tables
- Table 9 – Meaning of bits d0 to d3
- Table 10 – VHF frequencies 87,6 MHz to 107,9 MHz code table
- Table 11 – Special meanings AF code table
- Table 12 – LF/MF code table – ITU regions 1 and 3 (9 kHz spacing)
- Table 13 – MF code table – ITU region 2 (10 kHz spacing) [Go to Page]
- 7.5.2 Use of Alternative Frequencies in group type 0A
- 7.5.3 Use of AF codes in group type 14A
- 7.6 Coding of Enhanced Other Networks information (EON) [Go to Page]
- 7.6.1 General
- Table 14 – Example including AFs for the extended FM Band [Go to Page]
- 7.6.2 Coding of frequencies for cross-referenced programme services in EON
- 7.6.3 Use of the TP and TA features with EON
- 7.6.4 Use of PTY with EON
- 8 Required main RDS feature repetition rates on data-stream 0 [Go to Page]
- Table 15 – Data-stream 0 group repetition rates: Transmitter not part of a multiprogramme service network: no TMC and only 'basic' RDS features
- Table 16 – Data-stream 0 group repetition rates: Transmitter part ofa multi-programme service network: no TMC
- Table 17 – Data-stream 0 group repetition rates: Transmitter not part ofa multi-programme service network: with TMC
- Table 18 – Data-stream 0 group repetition rates: Transmitter not part ofa multi-programme service network: no TMC and with supportfor UTF-8 coded characters
- Table 19 – Data-stream 0 group repetition rates: Transmitter part ofa multi-programme service network: with TMC
- Annex A (normative) Method for linking RDS programme services – Linkage information – Group type 1A and 14A [Go to Page]
- A.1 General
- Figure A.1 – Structure of group type 1A, block 3
- A.2 LA – Linkage Actuator
- A.3 EG – Extended Generic indicator
- A.4 ILS – International Linkage Set indicator
- A.5 LSN – Linkage Set Number
- Figure A.2 – Structure of group type 14A variant 12, block 3 (Linkage information) – National link
- Figure A.3 – Structure of group type 14A variant 12, block 3 (Linkage information) – International link
- Annex B (informative) Conversion between time and date conventions [Go to Page]
- Figure B.1 – Conversion routes between Modified Julian Date (MJD) and Coordinated Universal Time (UTC)
- Table B.1 – Symbols used for time and date calculation
- Annex C (normative) RDS2 File Transfer protocol RFT for files up to 163 kB [Go to Page]
- C.1 Group coding of the ODA-AID assignment groups [Go to Page]
- C.1.1 General principles
- C.1.2 Variant 0
- Figure C.1 – AID assignment group coding for variant 0 [Go to Page]
- C.1.3 Variant 1
- Table C.2 – Relation between chunk size, max. file size and max.chunk address [Go to Page]
- C.1.4 Variants 2 to 15
- Figure C.2 – AID assignment group coding for variant 1
- Figure C.3 – AID assignment group coding for variant 2 to 15
- Figure C.4 – RFT data group
- Annex D (informative) CRC-16 ITU-T/CCITT checkword calculation [Go to Page]
- D.1 General
- D.2 PASCAL listing of CRC-16-calculation routine
- D.3 C listing of the CRC-16 calculation routine
- D.4 Fictitious example
- Bibliography [Go to Page]
