CISPR TR 31:2012
(Main)Database on the characteristics of radio services
Database on the characteristics of radio services
CISPR/TR 31:2012 covers the rationale behind the actual database covering the characteristics of radio services. The objective of the database is to register those characteristics which are relevant for derivation and specification of limits for disturbance emissions from electric and/or electronic equipment, systems and installations. Committees responsible for generic and/or product emission EMC standards should use this information together with CISPR 23. This second edition includes the replacement of CISPR 23 as reference standard for the determination of limits by CISPR 16-4-4:2007 on "model for the calculation of limits for the protection of radio services".
Base de données des caractéristiques des services radioélectriques
La CISPR/TR 31:2012 traite la justification sous-jacente à la base de données réelle traitant les caractéristiques des services radioélectriques. L'objectif de la base de données est d'enregistrer les caractéristiques pertinentes pour la détermination et la spécification des limites des émissions de perturbations provenant de matériels, systèmes et installations électriques et/ou électroniques. Il convient que les comités responsables des normes de CEM d'émission générique et/ou de produit utilisent cette information avec la CISPR 16-4-4. Cette deuxième édition annule et remplace la première édition parue en 2003. Cette édition inclut le remplacement de la CISPR 23 comme norme de référence pour la détermination des limites par la CISPR 16-4-4:2007 concernant "le modèle de calcul des limites pour la protection des services radioélectriques".
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CISPR/TR 31 ®
Edition 2.0 2012-09
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
colour
inside
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
Database on the characteristics of radio services
Base de données des caractéristiques des services radioélectriques
CISPR/TR 31:2012
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CISPR/TR 31 ®
Edition 2.0 2012-09
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
colour
inside
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
Database on the characteristics of radio services
Base de données des caractéristiques des services radioélectriques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX K
ICS 33.100.10 ISBN 978-2-83220-362-0
– 2 – TR CISPR 31 © IEC:2012
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 General . 5
4 Outline of database . 5
5 Input to database . 8
6 Usage of database . 8
Annex A (informative) Reporting form . 9
Bibliography . 10
Table 1 – Explanation of columns in the spreadsheet . 5
Table 2 – Example based on the principles defined in Table 1 . 7
Table A.1 – Reporting form . 9
TR CISPR 31 © IEC:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DATABASE ON THE CHARACTERISTICS OF RADIO SERVICES
FOREWORD
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The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
CISPR 31, which is a technical report, has been prepared by CISPR subcommittee H: Limits
for the protection of radio services.
This second edition cancels and replaces the first edition published in 2003. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) replacement of CISPR 23 as reference standard for the determination of limits by CISPR
16-4-4:2007 on "model for the calculation of limits for the protection of radio services".
– 4 – TR CISPR 31 © IEC:2012
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
CISPR/H/228/DTR CISPR/H/234/RVC
Full information on the voting for the approval of this technical report can be found in the
report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
TR CISPR 31 © IEC:2012 – 5 –
DATABASE ON THE CHARACTERISTICS OF RADIO SERVICES
1 Scope
This Technical Report covers the rationale behind the actual database covering the
characteristics of radio services. The database is a “living document” in the format of a
spreadsheet file in the EMC Zone of the IEC web site (http://www.iec.ch/emc/database).
The objective of the database is to register those characteristics which are relevant for
derivation and specification of limits for disturbance emissions from electric and/or electronic
equipment, systems and installations. Committees responsible for generic and/or product
emission EMC standards should use this information together with CISPR 16-4-4.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
CISPR 16-4-4:2007, Specification for radio disturbance and immunity measuring apparatus
and methods – Part 4-4: Uncertainties, statistics, and limit modelling – Statistics of complaints
and a model for the calculation of limits for the protection of radio services
3 General
The database content is comprised of objective radio system characteristics and subjective
information on typical intended usage.
4 Outline of database
The explanation of the columns in the spreadsheet is given in Table 1.
Table 1 – Explanation of columns in the spreadsheet
Characteristics Explanation/purpose
Radio system (name) Identification of the system
Reference document (specification) Reference to the system specification
Receiving frequency band (MHz) Frequency band in MHz specified by the band edge
frequencies
Field strength to protect or sensitivity Typically the lowest useable field strength or specified
sensitivity in dB(µV/m)
Protection ratio R (dB) Ratio of the minimum useable field strength for the
wanted RF signal to the maximum acceptable level of
an interfering signal
Receiving antenna gain Gr (dB) Typical gain in dB in the main lobe of an antenna
intended for use with a
...
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