IEC 62106-6:2018
(Main)Radio data system (RDS) - VHF/FM sound broadcasting in the frequency range from 64,0 MHz to 108,0 MHz - Part 6: Compilation of technical specifications for Open Data Applications in the public domain
Radio data system (RDS) - VHF/FM sound broadcasting in the frequency range from 64,0 MHz to 108,0 MHz - Part 6: Compilation of technical specifications for Open Data Applications in the public domain
IEC 62106-6:2018 contains the technical specifications for Open Data Applications in the public domain. This document is maintained by the RDS Forum Office. The RDS Forum Office applies an easy procedure for registering new Open Data Applications, to ensure that they can be used without the need to change the RDS standard. The ODA feature permits defining new applications that can be decoded on a receiver. The receiver needs to the adequate software handler for the specific AID, which identifies the application. Receivers that have not implemented the software handler needed for decoding are not affected by ODA data received for any of the applications already defined and specified.
The procedure for registering a new ODA is described in IEC 62106-3.
IEC 62106-6:2018 together with IEC 62106-1, IEC 62106-2, IEC 62106-3, IEC 62106-4 and IEC 62106-5, 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);
• New are AF coding below 87,5 MHz (down to 64,0 MHz) using ODA-AID 0x6365;
• RT+ can now be used simultaneously for RT and eRT, each having its own RT+ ODA;
• Data-streams 1, 2 and 3 are exclusively UTF-8 coded. For backwards compatibility, UCS-2 encoded eRT on data-stream 0 is retained.
General Information
Relations
Buy Standard
Standards Content (Sample)
IEC 62106-6 ®
Edition 1.0 2018-09
INTERNATIONAL
STANDARD
Radio data system (RDS) – VHF/FM sound broadcasting in the frequency range
from 64,0 MHz to 108,0 MHz –
Part 6: Compilation of technical specifications for Open Data Applications in the
public domain
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.
IEC publications search - webstore.iec.ch/advsearchform IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
CISPR.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC 62106-6 ®
Edition 1.0 2018-09
INTERNATIONAL
STANDARD
Radio data system (RDS) – VHF/FM sound broadcasting in the frequency range
from 64,0 MHz to 108,0 MHz –
Part 6: Compilation of technical specifications for Open Data Applications in the
public domain
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.160.40 ISBN 978-2-8322-6071-5
– 2 – IEC 62106-6:2018 © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, abbreviated terms and conventions . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 7
3.3 Notation and conventions . 8
4 ODAs in the public domain . 8
4.1 ODAs in the 37-bit ODA application group structure . 8
4.1.1 Traffic Message Channel (TMC) . 8
4.1.2 Other public ODAs . 8
4.2 ODAs in the group type C structure for the upper data-streams 1, 2 and 3 . 8
Annex A (normative) Coding of RadioText Plus (RT+) tagging information for
RadioText in group type 2A/B . 9
A.1 General . 9
A.2 Terms used . 9
A.3 RT+ tag. 10
A.4 RT+ information elements and data model . 11
A.4.1 General . 11
A.4.2 List of RT content types . 11
A.4.3 Structures of RT+ messages . 12
A.4.4 Receiver data model . 13
A.5 RT+ coding for RT . 15
A.5.1 General . 15
A.5.2 RT+ identification (group type 3A) . 15
A.5.3 Coding of the RT+ tag . 16
A.5.4 Clearing of RT+ messages. 17
A.6 Broadcasting conventions . 20
A.7 Receiving conventions . 20
A.8 Marking . 20
Annex B (normative) Coding of RadioText Plus(RT+) tagging information for
RadioText in the eRT ODA of Annex C . 21
Annex C (normative) Coding of enhanced RadioText (eRT) . 22
C.1 General . 22
C.2 Coding eRT in ODA groups . 22
C.2.1 General . 22
C.2.2 eRT identification (Group type 3A) and coding of the text string . 22
C.2.3 Coding of the eRT text string . 23
C.2.4 UTF-8 decoding problems when used with RT+ . 24
C.3 Broadcasting conventions . 25
C.4 Receiving conventions . 25
C.5 Marking . 25
Annex D (normative) Coding of AF lists in the frequency range 64,1 MHz to 107,9
MHz: ODA-AF . 26
D.1 Objective to be achieved . 26
D.2 Description of the coding process . 26
D.2.1 ODA-AF identification (group type 3A) . 26
D.2.2 AF coding in the application group . 27
D.2.3 AF method A. 29
D.2.4 AF method B. 29
D.2.5 Convention for identification of the AF method used . 30
Figure A.1 – Example 1: RT+ information of the category 'Item' (see Table A.2) will be
attached to the programme elements Item 1 and Item 2 . 14
Figure A.2 – Example 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 . 14
Figure A.3 – Example 3: RT+ information of the category 'Item' will be attached only to
the programme element Item 1, but not to the programme element Talk . 14
Figure A.4 – Bit allocation for group 3A (message bits and AID) . 15
Figure A.5 – Coding of the message bits of the application group . 16
Figure C.1 – Bit allocation for group 3A (message bits and AID) . 23
Figure C.2 – Coding of the message bits of the application group type A . 24
Figure D.1 – New ODA-AF – group type 3A . 26
Figure D.2 – New ODA-AF application group – group type A . 27
Table A.1 – RT+ information elements for RT . 9
Table A.2 – Code list and 'RT+ class' description of RT content types (1 of 3) . 18
Table B.1 – RT+ information elements for eRT . 21
Table C.1 – eRT information elements . 22
Table D.1 – 9-bit AF code table for VHF Band I (64,0 MHz to 88,0 MHz) . 27
Table D.2 – 9-bit AF code table for VHF Band II (87,5 MHz to 108 MHz) . 27
Table D.3 – 9-bit special meanings code table . 28
Table D.4 – LF/MF code table – ITU regions 1 and 3 (9 kHz spacing) . 28
Table D.5 – MF code table – ITU region 2 (10 kHz spacing) . 28
– 4 – IEC 62106-6:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIO DATA SYSTEM (RDS) –
VHF/FM SOUND BROADCASTING IN THE FREQUENCY
RANGE FROM 64,0 MHz TO 108,0 MHz –
Part 6: Compilation of technical specifications
for Open Data Applications in the public domain
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC
Publication(s)"). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.