IEC 62106-2:2018

Radio data system (RDS) - VHF/FM sound broadcasting in the frequency range from 64,0 MHz to 108,0 MHz - Part 2: Message format: Coding and definition of RDS features

IEC 62106-2:2018 defines the coding and definition of features for the Radio Data System (RDS).
IEC 62106-2:2018 together with IEC 62106-1, IEC 62106-3, IEC 62106-4, IEC 62106-5 and IEC 62106-6, cancels and replaces IEC 62106:2015, and constitutes a technical revision.
This edition includes the following significant technical changes with respect to IEC 62106:2015:
• Provision has been made to carry RDS on multiple data-streams (RDS2).
• Data in the additional data-streams is using a newly defined group type C data structure.
• AF coding below 87,6 MHz (down to 64,1 MHz) using ODA-AID 0x6365 (see IEC 62106-6).
• Long PS (UTF-8) support has been added using group type 15A.
• Coding for the following applications is no longer detailed in the RDS standard as these can use in future the ODA concept: EWS, TDC, IH and RP.
• Obsolete and no longer part of the RDS standard are: MS (Group 0A, 0B and 15B) certain DI codes (mono/stereo, artificial head, compression), Language code, and PIN (Group 1A).

General Information

• Status: Published
• Publication Date: 09-Oct-2018
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.160.40 - Video systems
• Technical Committee: TC 100 - Audio, video and multimedia systems and equipment
• Drafting Committee: MT 62106 - TC 100/TA 1/MT 62106
• Current Stage: DELPUB - Deleted Publication
• Start Date: 24-Apr-2020
• Completion Date: 22-Feb-2021

Relations

• Replaces: IEC 62106:2015 - Specification of the radio data system (RDS) for VHF/FM sound broadcasting in the frequency range from 87,5 MHz to 108,0 MHz
• Effective Date: 05-Sep-2023
• Revised: IEC 62106-2:2021 - Radio data system (RDS) - VHF/FM sound broadcasting in the frequency range from 64,0 MHz to 108,0 MHz - Part 2: Message format: coding and definition of RDS features
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62106-2 ®
Edition 1.0 2018-10
INTERNATIONAL
STANDARD
Radio data system (RDS) – VHF/FM sound broadcasting in the frequency range
from 64,0 MHz to 108,0 MHz –
Part 2: Message format: Coding and definitions of RDS features

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IEC 62106-2 ®
Edition 1.0 2018-10
INTERNATIONAL
STANDARD
Radio data system (RDS) – VHF/FM sound broadcasting in the frequency range

from 64,0 MHz to 108,0 MHz –
Part 2: Message format: Coding and definitions of RDS features

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.160.40 ISBN 978-2-8322-6067-8

– 2 – IEC 62106-2:2018 © IEC 2018
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions, abbreviated terms and conventions . 8
3.1 Terms and definitions . 8
3.2 Abbreviated terms . 8
3.3 Notation and conventions . 10
4 Message format . 10
4.1 Design principles . 10
4.2 Group structure . 11
4.2.1 Group type A structure . 11
4.2.2 Group type B structure . 12
4.2.3 Group type C structure . 12
4.3 Group type A and B usage . 14
4.4 Group type C usage . 15
4.4.1 Transmitting legacy data using data-streams 1, 2 and 3. 15
4.4.2 Transmitting group type C ODA data . 15
4.4.3 AID and channel number assignment for group type C ODAs. 16
5 Description of the RDS features. 17
5.1 Alternative Frequencies list (AFs) . 17
5.2 Clock Time and date (CT) . 17
5.3 Dynamic PTY Indicator (PTYI) using DI . 17
5.4 Extended Country Code (ECC) . 17
5.5 Enhanced Other Networks information (EON) . 17
5.6 Linkage information . 18
5.7 Open Data Applications (ODAs) . 18
5.8 Programme Identification (PI). 18
5.9 Programme Service name – (PS) . 19
5.10 Long Programme Service name – (LPS) . 19
5.11 Programme Type (PTY) . 19
5.12 Programme Type Name (PTYN) . 19
5.13 RadioText (RT) . 20
5.14 enhanced RadioText (eRT) . 20
5.15 RadioText Plus (RT+ and eRT+) . 20
5.16 Traffic Programme identification (TP) . 20
5.17 Traffic Announcement identification (TA) . 20
5.18 Traffic Message Channel (TMC) . 21
6 Coding of the group types . 21
6.1 Groups of type 0A and 0B: Basic tuning and switching information with PS
name . 21
6.2 Group type 1A: Slow labelling codes . 22
6.3 Group type 2A and 2B: RadioText . 23
6.4 Group type 3A: Application identification for any specific ODA using groups
of type A or B . 24
6.5 Group type 4A: Clock-Time and date. 24
6.6 Group type 10A: Programme Type Name PTYN . 25

6.7 Group type 14A and B: Enhanced Other Networks information (EON) . 26
6.8 Group type 15A: Long Programme Service name – 32 bytes with UTF-8
coding . 26
6.9 Group type 15B: Fast basic tuning and switching information . 27
7 Coding of RDS features for control . 28
7.1 Programme Identification (PI) codes and Extended Country Codes (ECC) . 28
7.1.1 PI structure . 28
7.1.2 Country Identifier (CI) codes: ‘Nibble 1’ . 28
7.1.3 Extended Country Codes (ECC) . 28
7.1.4 Programme service in terms of area coverage (codes for fixed location
transmitters only): ‘Nibble 2’ . 29
7.1.5 Programme reference number: ‘Nibbles 3 and 4’ . 29
7.1.6 PI codes for low-power short range transmitting devices . 29
7.2 Programme Type (PTY) codes . 30
7.3 Traffic Programme (TP) and Traffic Announcement (TA) codes . 30
7.4 Decoder Identification (DI) and dynamic PTY Indicator (PTYI) codes . 30
7.5 Coding of Alternative Frequencies (AFs) . 30
7.5.1 AF code tables . 30
7.5.2 Use of Alternative Frequencies in group type 0A. 32
7.5.3 Use of AF codes in group type 14A . 34
7.6 Coding of Enhanced Other Networks information (EON) . 35
7.6.1 General . 35
7.6.2 Coding of frequencies for cross-referenced programme services in EON . 36
7.6.3 Use of the TP and TA features with EON . 36
7.6.4 Use of PTY with EON . 36
8 Required main RDS feature repetition rates on data-stream 0 . 37
Annex A (normative) Method for linking RDS programme services – Linkage
information – Group type 1A and 14A . 41
A.1 General . 41
A.2 LA – Linkage Actuator . 42
A.3 EG – Extended Generic indicator . 42
A.4 ILS – International Linkage Set indicator . 42
A.5 LSN – Linkage Set Number . 42
Annex B (informative) Conversion between time and date conventions . 44
Bibliography . 46

Figure 1 – Group type A structure . 11
Figure 2 – Group type B structure . 12
Figure 3 – Group type C structure . 12
Figure 4 – Tunnelling structure for group types A and B . 15
Figure 5 – Basic tuning and switching information – Group type 0A . 21
Figure 6 – Basic tuning and switching information – Group type 0B . 22
Figure 7 – Slow labelling codes – Group type 1A . 22
Figure 8 – RadioText – Group type 2A . 23
Figure 9 – RadioText – Group type 2B . 24
Figure 10 – Application identification for any specific ODA – Group type 3A . 24
Figure 11 – Clock-Time and date transmission – Group type 4A . 25

– 4 – IEC 62106-2:2018 © IEC 2018
Figure 12 – Programme Type Name PTYN – Group type 10A . 25
Figure 13 – Enhanced Other Networks information – Group type 14A . 26
Figure 14 – Enhanced Other Networks information – Group type 14B . 26
Figure 15 – Long PS, UTF-8 coded – Group type 15A . 27
Figure 16 – Fast basic tuning an
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