CLC/TR 50485:2010

Electromagnetic compatibility - Emission measurements in fully anechoic chambers

This Technical Report applies to emission measurements of radiated electromagnetic fields in Fully Anechoic Rooms (FAR) in the frequency range from 30 MHz to 18 GHz. This Technical Report covers the frequency range from 30 MHz – 1 000 MHz. The frequency range above 1 GHz is under consideration, due to the absence of practical experience. This Technical Report describes the validation procedure for the Fully Anechoic Room for radiated emission tests and the procedures to carry out the tests (e.g. test set up, EUT position, cable layout and termination, test procedures). Recommendations for the relation between FAR emission limits and common Open Area Test Site (OATS) emission limits given in standards such as EN 55011 and EN 55022 are given in Annex B. This FAR emission method may be chosen by product committees as an alternative method to emission measurement on an Open Area Test Site (OATS) as described in CISPR 16 series. In such cases, the product committee should also define the appropriate limits. Typical measurement uncertainty values for FARs and OATS are given in Annex C.

Elektromagnetische Verträglichkeit - Störaussendung in Absorberräumen

Compatibilité électromagnétique - Emission en chambres anéchoïques entiers

Elektromagnetna združljivost - Meritve oddajanja v popolnoma neodbojnih sobah

To tehnično poročilo velja za meritve oddajanja sevanih radiomagnetnih polj v popolnoma neodbojnih sobah (FAR) v frekvenčnem razponu med 30 MHz in 18 GHz. To tehnično poročilo zajema frekvenčni razpon med 30 MHz in 1 000 MHz. Frekvenčni razpon nad 1 GHz se obravnava, ker praktičnih izkušenj ni.
To tehnično poročilo opisuje postopek validacije za popolnoma neodbojne sobe za preskuse sevanega oddajanja in postopek za izvedbo preskusov (npr. nastavitev preskusa, položaj EUT, postavitev in zaključevanje kablov, preskusni postopki). V dodatku B so podana priporočila za razmerje med mejnimi vrednostmi oddajanja v FAR in splošnimi mejnimi vrednostmi oddajanja za merilni poligon na prostem (OATS), podanimi v standardih, kot sta EN 55011 in EN 55022.
Metodo za oddajanje v FAR lahko izberejo odbori za proizvode kot alternativno metodo merjenju oddajanja na merilnem poligonu na prostem (OATS), kot je opisano v seriji CISPR 16. V takih primerih mora odbor za proizvode opredeliti tudi ustrezne mejne vrednosti. Tipične vrednosti negotovosti merjenja za FAR in OATS so navedene v dodatku C.

General Information

• Status: Published
• Publication Date: 11-Mar-2010
• ICS: 33.100.10 - Emission
• Technical Committee: CLC/TC 210 - Electromagnetic Compatibility (EMC)
• Parallel Committee: IEC/TC CISPR - IEC_TC_CISPR
• Current Stage: 6060 - Document made available - Publishing
• Completion Date: 12-Mar-2010
• Ref Project: SIST-TP CLC/TR 50485:2011 - Electromagnetic compatibility - Emission measurements in fully anechoic chambers

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TP CLC/TR 50485:2011
01-december-2011
1DGRPHãþD
SIST R210-010:2003
Elektromagnetna združljivost - Meritve oddajanja v popolnoma neodbojnih sobah
Electromagnetic compatibility - Emission measurements in fully anechoic chambers
Elektromagnetische Verträglichkeit - Störaussendung in Absorberräumen
Compatibilité électromagnétique - Emission en chambres anéchoïques entiers
Ta slovenski standard je istoveten z: CLC/TR 50485:2010
ICS:
33.100.10 Emisija Emission
SIST-TP CLC/TR 50485:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CLC/TR 50485:2011

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SIST-TP CLC/TR 50485:2011

TECHNICAL REPORT
CLC/TR 50485

RAPPORT TECHNIQUE
March 2010
TECHNISCHER BERICHT

ICS 33.100.10 Supersedes R210-010:2002


English version


Electromagnetic compatibility -
Emission measurements in fully anechoic chambers



Compatibilité électromagnétique -  Elektromagnetische Verträglichkeit -
Emission en chambres Störaussendung in Absorberräumen
anéchoïques entiers







This Technical Report was approved by CENELEC on 2009-12-17.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia,
Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.




CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels


© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TR 50485:2010 E

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SIST-TP CLC/TR 50485:2011
CLC/TR 50485:2010 – 2 –
Foreword
This Technical Report was prepared by the Technical Committee CENELEC TC 210, Electromagnetic
Compatibility (EMC).
This document supersedes R210-010:2002.
In order not to loose the information provided in R210-010:2002, CENELEC TC 210 decided to transfer
the content of that document unchanged into a Technical Report. It should be noted that CISPR
incorporated a major part of the document R210-010:2002 into the CISPR 16 series and the references to
standards were not updated.
The document still provides a comprehensive overview and describes some fundamental items of interest
for the appropriate use of fully anechoic chambers. The main reason for keeping the document in the
public domain in this new form is that it contains background information that has not been included in
EN 55016-1-4.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.

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SIST-TP CLC/TR 50485:2011
– 3 – CLC/TR 50485:2010
Contents
1 Scope .5
2 References .5
3 Definitions and abbreviations .6
3.1 Definitions .6
3.2 Abbreviations .7
4 Test and measurement equipment .7
4.1 Fully Anechoic Rooms (FARs) .7
4.2 Antenna .7
5 Anechoic room performance .8
5.1 Theoretical normalised site attenuation .8
5.2 Room validation procedure . 10
5.3 Anechoic room requirements . 13
6 Emission measurem
...