IEC 62634:2011

Radio data system (RDS) - Receiver products and characteristics - Methods of measurement

IEC 62634:2011 describes how to measure minimum RDS receiver performance requirements which concern three RDS receiver product categories. It should be noted that there are also RDS receiver products on the market that significantly out-perform the minimum RDS receiver performance requirements quoted. Methods and algorithms to achieve automatic programme service-following by means of AF lists are customer- and manufacturer-specific, and are therefore not covered in this standard. It cancels and replaces IEC 60315-9, published in 1996, and constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 60315-9:
- use of state-of-the-art measuring methods based on today's RDS products;
- provision of realistic performance targets;
- is complementary to RDS standard IEC 62106 (2009);
- it covers the challenging RDS receiving conditions "weak signal", "adjacent channel" and "strong signal" to verify the required RDS sensitivity and selectivity for three different RDS product categories.

Système de radiodiffusion de données - Caractéristiques et méthodes de mesure des récepteurs RDS

La CEI 62634:2011 décrit les exigences minimales de performance des récepteurs RDS, qui concernent trois catégories de produits de récepteurs RDS. Il convient de noter qu'il existe sur le marché des récepteurs RDS qui dépassent largement les exigences minimales de performances indiquées ici pour les récepteurs RDS. Les méthodes et algorithmes utilisés pour le suivi automatique des stations au moyen des listes AF sont spécifiques aux clients et aux fabricants; par conséquent, cet aspect est volontairement exclu de la présente norme. Cette publication annule et remplace la CEI 60315-9, publiée en 1996, et constitue une révision technique. Les modifications principales par rapport à la CEI 60315-9 sont les suivantes:
- utilisation de méthodes de mesure conformes à l'état de l'art avec des produits RDS actuels;
- indication d'objectifs de performances réalistes;
- complémentarité à la norme sur le système RDS, CEI 62106 (2009), traitement des conditions de réception RDS difficiles "signal faible", "canal adjacent" et "signal fort" pour confirmer les exigences de sensibilité et de sélectivité pour trois catégories différentes de produits RDS.

General Information

• Status: Published
• Publication Date: 27-Jun-2011
• ICS: 33.060.20 - Receiving and transmitting equipment
• Technical Committee: TC 100 - Audio, video and multimedia systems and equipment
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 30-Mar-2015

Relations

• Revised: IEC 62634:2015 - Radio data system (RDS) - Receiver products and characteristics - Methods of measurement
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62634 ®
Edition 1.0 2011-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radio data system (RDS) – Receiver products and characteristics – Methods of
measurement
Système de radiodiffusion de données – Caractéristiques et méthodes de
mesure des récepteurs RDS
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IEC 62634 ®
Edition 1.0 2011-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radio data system (RDS) – Receiver products and characteristics – Methods of
measurement
Système de radiodiffusion de données – Caractéristiques et méthodes de
mesure des récepteurs RDS
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX Q
ICS 33.060.20 ISBN 978-2-88912-503-6

– 2 – 62634  IEC:2011
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . 8
4 Measuring method . 8
4.1 Standard measuring signal . 8
4.2 RDS data conditions . 9
4.2.1 General . 9
4.2.2 Matching circuit . 9
5 Measurement of the RDS sensitivity . 10
5.1 General . 10
5.2 Method of measurement . 10
5.3 Presentation of the results . 10
6 Measurement of the RDS data acquisition . 10
6.1 General . 10
6.2 Time to synchronise . 10
6.3 Time to detect a first PI . 11
6.4 Method of measurement . 11
7 Measurement of the large signal capabilities . 11
7.1 General . 11
7.2 Resistance to high wanted signal levels . 11
7.2.1 Method of measurement . 11
7.2.2 Large wanted signal requirement . 11
7.3 RDS performance at large unwanted signal . 11
7.3.1 Method of measurement . 11
7.3.2 Large unwanted signal requirements . 12
8 Measurement of the RDS selectivity . 12
8.1 General . 12
8.2 Method of measurement . 12
9 Considerations and guidelines for evaluation of the dynamic RDS performance . 13
9.1 General . 13
9.2 RDS dynamic behaviour . 13
9.3 Traffic announcements TA/TP . 14
9.3.1 TA message . 14
9.3.2 End of TA message . 14
9.3.3 TP search . 14
9.3.4 TA announcement skip . 14
9.4 Regionalisation . 15
9.4.1 Implementations . 15
9.4.2 Requirement . 15
Bibliography . 16

62634  IEC:2011 – 3 –
Figure 1 – Coupling circuit . 9
Figure 2 – Matching circuits for RDS product devices with three different input
impedances . 9

Table 1 – Presentation of the measurement result . 12
Table 2 – AF example . 15

– 4 – 62634  IEC:2011
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIO DATA SYSTEM (RDS) –
RECEIVER PRODUCTS AND CHARACTERISTICS –
METHODS OF MEASUREMENT
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