Specification for radio disturbance and immunity measuring apparatus and methods - Part 2-3: Methods of measurement of disturbances and immunity - Radiated disturbance measurements

This part of CISPR 16 specifies the methods of measurement of radiated disturbance
phenomena in the frequency range of 9 kHz to 18 GHz. The aspects of measurement
uncertainty are specified in CISPR 16-4-1 and CISPR 16-4-2.
NOTE In accordance with IEC Guide 107 [13]1, CISPR 16-2-3 is a basic EMC publication for use by product
committees of the IEC. As stated in Guide 107, product committees are responsible for determining the
applicability of the EMC standard. CISPR and its subcommittees are prepared to co-operate with product
committees in the evaluation of the value of particular EMC tests for specific products.

Anforderungen an Geräte und Einrichtungen sowie Festlegung der Verfahren zur Messung der hochfrequenten Störaussendung (Funkstörungen) und Störfestigkeit - Teil 2-3: Verfahren zur Messung der hochfrequenten Störaussendung (Funkstörungen) und Störfestigkeit - Messung der gestrahlten Störaussendung

Spécifications des méthodes et des appareils de mesure des perturbations radioélectriques et de l'immunité aux perturbations radioélectriques - Partie 2-3: Méthodes de mesure des perturbations et de l'immunité - Mesures des perturbations rayonnées

Specifikacija merilnih naprav in metod za merjenje radijskih motenj in odpornosti - 2-3. del: Metode za merjenje radijskih motenj in odpornosti - Merjenje sevanih motenj - Dopolnilo A1

Ta del standarda CISPR 16 določa načine merjenja radiofrekvenčnih motenj v frekvenčnem območju od 9 kHz do 18 GHz. Vidiki merilne negotovosti so določeni v standardih CISPR 16-4-1 in CISPR 16-4-2.
OPOMBA: V skladu z vodilom IEC 107 [13]1 je standard CISPR 16-2-3 osnovna objava o elektromagnetni združljivosti, ki jo uporabljajo tehnični odbori v okviru Mednarodne elektrotehniške komisije (IEC). Kot je navedeno v vodilu 107, so za ugotavljanje uporabe standarda o elektromagnetni združljivosti odgovorni tehnični odbori. Odbor CISPR in njegovi pododbori so pripravljeni sodelovati s tehničnimi odbori pri vrednotenju posameznih preskusov elektromagnetne združljivosti za ustrezne izdelke.

General Information

Status
Published
Publication Date
17-Oct-2019
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
14-Oct-2019
Due Date
19-Dec-2019
Completion Date
18-Oct-2019

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SLOVENSKI STANDARD
SIST EN 55016-2-3:2017/A1:2019
01-november-2019

Specifikacija merilnih naprav in metod za merjenje radijskih motenj in odpornosti -

2-3. del: Metode za merjenje radijskih motenj in odpornosti - Merjenje sevanih
motenj - Dopolnilo A1

Specification for radio disturbance and immunity measuring apparatus and methods -

Part 2-3: Methods of measurement of disturbances and immunity - Radiated disturbance

measurements
Anforderungen an Geräte und Einrichtungen sowie Festlegung der Verfahren zur

Messung der hochfrequenten Störaussendung (Funkstörungen) und Störfestigkeit - Teil

2-3: Verfahren zur Messung der hochfrequenten Störaussendung (Funkstörungen) und
Störfestigkeit - Messung der gestrahlten Störaussendung
Spécifications des méthodes et des appareils de mesure des perturbations

radioélectriques et de l'immunité aux perturbations radioélectriques - Partie 2-3:

Méthodes de mesure des perturbations et de l'immunité - Mesures des perturbations

rayonnées
Ta slovenski standard je istoveten z: EN 55016-2-3:2017/A1:2019
ICS:
17.240 Merjenje sevanja Radiation measurements
33.100.20 Imunost Immunity
SIST EN 55016-2-3:2017/A1:2019 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 55016-2-3:2017/A1:2019
---------------------- Page: 2 ----------------------
SIST EN 55016-2-3:2017/A1:2019
EUROPEAN STANDARD EN 55016-2-3:2017/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2019
ICS 33.100.10; 33.100.20
English Version
Specification for radio disturbance and immunity measuring
apparatus and methods - Part 2-3: Methods of measurement of
disturbances and immunity - Radiated disturbance
measurements
(CISPR 16-2-3:2016/A1:2019)

Spécifications des méthodes et des appareils de mesure Anforderungen an Geräte und Einrichtungen sowie

des perturbations radioélectriques et de l'immunité aux Festlegung der Verfahren zur Messung der hochfrequenten

perturbations radioélectriques - Partie 2-3: Méthodes de Störaussendung (Funkstörungen) und Störfestigkeit - Teil 2-

mesure des perturbations et de l'immunité - Mesures des 3: Verfahren zur Messung der hochfrequenten

perturbations rayonnées Störaussendung (Funkstörungen) und Störfestigkeit -
(CISPR 16-2-3:2016/A1:2019) Messung der gestrahlten Störaussendung
(CISPR 16-2-3:2016/A1:2019)

This amendment A1 modifies the European Standard EN 55016-2-3:2017; it was approved by CENELEC on 2019-07-30. CENELEC

members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the

status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the

responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as

the official versions.

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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 55016-2-3:2017/A1:2019 E
---------------------- Page: 3 ----------------------
SIST EN 55016-2-3:2017/A1:2019
EN 55016-2-3:2017/A1:2019 (E)
European foreword

The text of document CIS/A/1278/FDIS, future CISPR 16-2-3/A1, prepared by CISPR SC A "Radio-

interference measurements and statistical methods" of CISPR "International special committee on

radio interference" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as

EN 55016-2-3:2017/A1:2019.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2020-04-25

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2022-07-25

document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice

The text of the International Standard CISPR 16-2-3:2016/A1:2019 was approved by CENELEC as a

European Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards

indicated:
CISPR 11:2015 NOTE Harmonized as EN 55011:2016
CISPR 32:2015 NOTE Harmonized as EN 55032:2015 (not modified)
---------------------- Page: 4 ----------------------
SIST EN 55016-2-3:2017/A1:2019
EN 55016-2-3:2017/A1:2019 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments)

applies.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
Replace:

CISPR 16-1-4 2010 Specification for radio disturbance and immunity EN 55016-1-4 2010

measuring apparatus and methods - Part 1-4:
Radio disturbance and immunity measuring
apparatus - Antennas and test sites for radiated
disturbance measurements
+ A1 2012 + A1 2012
with:

CISPR 16-1-4 2019 Specification for radio disturbance and immunity EN IEC 55016-1-4 2019

measuring apparatus and methods - Part 1-4:
Radio disturbance and immunity measuring
apparatus - Antennas and test sites for radiated
disturbance measurements
Replace:

CISPR 16-4-2 - Specification for radio disturbance and immunity EN 55016-4-2 -

measuring apparatus and methods - Part 4-2:
Uncertainties, statistics and limit modelling -
Measurement instrumentation uncertainty
with:

CISPR 16-4-2 2011 Specification for radio disturbance and immunity EN 55016-4-2 2011

measuring apparatus and methods - Part 4-2:
Uncertainties, statistics and limit modelling -
Measurement instrumentation uncertainty
+ A1 2014 + A1 2014
+ A2 2018 + A2 2018
---------------------- Page: 5 ----------------------
SIST EN 55016-2-3:2017/A1:2019
---------------------- Page: 6 ----------------------
SIST EN 55016-2-3:2017/A1:2019
CISPR 16-2-3
Edition 4.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
BASIC EMC PUBLICATION
PUBLICATION FONDAMENTALE EN CEM
AMENDMENT 1
AMENDEMENT 1
Specification for radio disturbance and immunity measuring apparatus and
methods –
Part 2-3: Methods of measurement of disturbances and immunity – Radiated
disturbance measurements
Spécifications des méthodes et des appareils de mesure des perturbations
radioélectriques et de l’immunité aux perturbations radioélectriques –
Partie 2-3: Méthodes de mesure des perturbations et de l'immunité – Mesurages
des perturbations rayonnées
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.10; 33.100.20 ISBN 978-2-8322-6524-6

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN 55016-2-3:2017/A1:2019
– 2 – CISPR 16-2-3:2016/AMD1:2019
© IEC 2019
FOREWORD
This amendment has been prepared by CISPR subcommittee A: Radio-interference
measurements and statistical methods.
The text of this amendment is based on the following documents:
FDIS Report on voting
CISPR/A/1278/FDIS CISPR/A/1283/RVD

Full information on the voting for the approval of this amendment can be found in the report

on voting indicated in the above table.

The committee has decided that the contents of this amendment and the base publication will

remain unchanged until the stability date indicated on the IEC website 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.
_____________
INTRODUCTION

Amendment of CISPR 16-2-3 regarding EUT volume specifications for radiated disturbance

measurements depending on test method and on measurement distance
2 Normative references
Replace the undated reference to CISPR 16-4-2 by the following:

CISPR 16-4-2:2011 , Specification for radio disturbance and immunity measuring apparatus

and methods – Part 4-2: Uncertainties, statistics and limit modelling – Measurement

instrumentation uncertainty
CISPR 16-4-2:2011/AMD1:2014
CISPR 16-4-2:2011/AMD2:2018
__________

A consolidated version of this publication exists, comprising CISPR 16-4-2:2011, CISPR 16-4-

2:2011/AMD1:2014 and CISPR 16-4-2:2011/AMD2:2018.
---------------------- Page: 8 ----------------------
SIST EN 55016-2-3:2017/A1:2019
CISPR 16-2-3:2016/AMD1:2019 – 3 –
© IEC 2019
Replace the dated reference to CISPR 16-1-4 by the following:

CISPR 16-1-4:2018, Specification for radio disturbance and immunity measuring apparatus

and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Antennas

and test sites for radiated disturbance measurements
3.1 Terms and definitions
3.1.1
absorber-lined OATS/SAC
Add the following note:

Note 1 to entry: CISPR 16-1-4 uses the analogous term free-space open-area test site (FSOATS).

3.1.9
common-mode absorption device
Replace the existing source by the following:
[SOURCE: CISPR 16-1-4:2018, 3.1.7]
3.1.16
loop-antenna system
LAS

Replace the existing term by the following new term and new abbreviation (the definition does

not change):
large loop-antenna system
LLAS

The instruction to replace the existing Note to entry only applies to the French language.

Add, after the existing term and definition 3.1.28, the following new terms and definitions:

3.1.29
compliance test site
COMTS

environment that assures valid, reproducible measurement results of the disturbance field

strength from equipment under test for comparison to a compliance limit
3.1.30
far-field region

region of the electromagnetic field of a radiating EUT or antenna where the predominant

components of the field represent a propagation of energy and where the radiation pattern is

essentially independent of the distance from the radiating EUT or antenna

Note 1 to entry: In the far-field region, all the components of the electromagnetic field change with an inverse

proportion to the distance from the radiating EUT or antenna.

[SOURCE: IEC 60050-712:1992 [14], 712-02-02, modified – Replacement of "far field region"

by "far-field region" in the term itself, replacement of "antenna" by "radiating EUT or antenna",

replacement of "angular field distribution" by "radiation pattern" and deletion of Note 2 to

entry.]
3.1.31
near-field effect
deviation of the field propagation from far-field propagation

Note 1 to entry: The near-field effect occurs in the zone close to the EUT where reactive (non-radiating) field-

strength components exist. Although not contributing to far-field radiation, they are real measurable field strengths.

---------------------- Page: 9 ----------------------
SIST EN 55016-2-3:2017/A1:2019
– 4 – CISPR 16-2-3:2016/AMD1:2019
© IEC 2019

Note 2 to entry: A criterion can be set to limit the deviation from far-field propagation, e.g. 1 dB. If E and E are

1 2

field-strength levels in dB(µV/m) at distances d and d from an EUT, then e.g. the following inequality describes

1 2

the criterion: (20lg(d /d ) − 1 dB) ≤ (E − E ) ≤ (20lg(d /d ) + 1 dB), which can be reduced to −1 dB ≤ [(E – E ) −

2 1 1 2 2 1 1 2
20lg(d /d )] ≤ 1 dB, where (E – E ) ≥ 6 dB.
2 1 1 2
3.1.32
test volume
validated volume within a test facility in which an EUT may be positioned

Note 1 to entry: Validation procedures in CISPR 16-1-4 are used to determine the test volume.

Note 2 to entry: The test volume as defined in this document is cylindrical in shape. Different test volume shapes

have been defined in other documents, e.g. in a cubic form in IEC 61000-4-20 (TEM waveguides).

3.1.33
EUT volume

cylinder defined by EUT boundary diameter and height that fully encompasses all portions of

the actual EUT, including cable racks and 1,6 m of cable length (for 30 MHz to 1 GHz), or

0,3 m of cable length (for 1 GHz and above)

Note 1 to entry: The test volume is one of several criteria limiting the EUT volume.

Note 2 to entry: The EUT volume has a diameter D (boundary diameter) and a height h.

3.1.34
protection distance

distance between the source of a radiated disturbance and the victim receiver at the edge-of-

service area used for the derivation of a specific CISPR radiated disturbance limit

Note 1 to entry: The edge-of-service area is defined by the minimum value of the wanted field strength of a radio

service or application derived from ITU-R specifications.

Note 2 to entry: This definition can vary in other publications, when conducted disturbances are concerned.

Note 3 to entry: Every limit has an associated protection distance; the protection distance can vary with frequency.

3.1.35
small EUT

equipment under test, including its cables, either positioned on a tabletop or standing on the

floor, that fits in a cylindrical volume of 1,5 m (2,0 m) in diameter and 1,5 m (2,0 m) in height

measured from the floor with a measurement distance of 3 m (5 m) at an OATS/SAC
3.2 Abbreviated terms
Delete from the existing list the abbreviation “RGP”.
Add to the existing list the following new abbreviations:
AF Antenna factor
FSOATS free-space OATS
GP ground plane
HPBW Half-power beamwidth
RE radiated emission
RI radiated immunity
6.2.2 Compliance (conformity assessment) testing
Replace in the 1 sentence “test site” by “compliance test site (COMTS)”
6.4.1.1 General
Replace in the existing twelfth paragraph the abbreviation “RGP” by “GP”.
---------------------- Page: 10 ----------------------
SIST EN 55016-2-3:2017/A1:2019
CISPR 16-2-3:2016/AMD1:2019 – 5 –
© IEC 2019
6.4.1.2 Tabletop arrangement
Replace in the existing third paragraph the abbreviation “RGP” by “GP”.
6.4.1.3 Floor-standing arrangement
Replace in the existing first three paragraphs the abbreviation “RGP” by “GP”.
6.4.1.4 Combinations of tabletop and floor-standing equipment arrangement
Replace in this subclause the abbreviation “RGP” by “GP”.
7.1 Introductory remarks
Replace the existing title by the following new title:
7.1 General

Replace the existing content of this subclause (including Table 3), by the following new 7.1.1,

and 7.1.2:
7.1.1 General remarks and overview of test methods

Clause 7 sets forth the general procedures for the measurement of the field strength of radio

disturbance produced by devices and systems. Most experience with radiated disturbance

measurements exists for OATS/SAC with 10 m distance in the frequency range 30 MHz to

1 000 MHz. In this frequency range this is therefore called the established test method to

which other test methods are compared regarding the level of radio protection (see also

CISPR TR 16-4-5). The effects of leads and cables associated with the EUT in terms of length,

layout, and termination shall be taken into account (see Garbe and Battermann [21], Garbe

[22]). Table 8 provides a summary list of CISPR radiated disturbance test sites and

measurement methods, and the related cross-references to subclauses within this document

or to other documents. Tables 9, 10, 11 and 12 provide information on maximum EUT

volumes associated with the various measurement methods. Background on the criteria for

EUT volumes is given in Annex F.

For some products, it can be required to measure the electric field strength, the magnetic field

strength, or both components of the radiated disturbance. Sometimes a measurement of a

quantity related to radiated power is more appropriate. Normally measurements should be

made of both the horizontal and vertical components of the disturbance relative to the

installation floor or ground plane. The results of measurements of either the electric field-

strength component or magnetic field-strength component may be expressed in peak, quasi-

peak, average, or rms-average values.

The magnetic field-strength component of a disturbance is normally measured at frequencies

up to 30 MHz. In magnetic field-strength measurements, only the horizontal component of the

field at the position of the receive antenna is measured when using the distant single antenna

procedure. If an LLAS is used, the three orthogonal magnetic dipole moments of the EUT are

measured.

NOTE 1 In the magnetic field-strength measurement method using a distant single antenna (e.g. 60 cm loop

antenna), the horizontal components of the field at the position of the antenna are determined by the horizontal and

vertical dipole moments of the EUT.

NOTE 2 A future amendment to this document (CISPR 16-2-3/AMD2 ) is under consideration for modifying the

magnetic field-strength measurement method such that measurements of all three orthogonal components (using

three orthogonal positions of a single receive antenna) will be required for measurement distances of 3 m and 5 m,

__________

Under preparation. Stage at the time of publication: CISPR/CDM 16-2-3/AMD2:2018.

---------------------- Page: 11 ----------------------
SIST EN 55016-2-3:2017/A1:2019
– 6 – CISPR 16-2-3:2016/AMD1:2019
© IEC 2019

whereas the present measurement method (where only the horizontal components of the field strength are

measured) will continue to be used for larger measurement distances.
Table 8 – Applicable frequency ranges and document references
for CISPR radiated disturbance test sites and measurement methods
Site / method 9 kHz to 30 MHz 30 MHz to 1 000 MHz 1 GHz to 18 GHz
Outdoor site tbd 7.3.8 n/a
LLAS 7.2 n/a n/a
OATS or SAC tbd 7.3 n/a
FAR n/a 7.4 7.6
7.5
Common RE/RI n/a n/a
(RI starts 80 MHz)
Absorber-lined n/a n/a 7.6
OATS/SAC
In situ 7.7.2 7.7.3, 7.7.4.2 7.7.3, 7.7.4.3
Substitution method n/a 7.8 7.8
Reverberation chamber n/a 7.9 7.9
(Starts 80 MHz)
TEM waveguide IEC 61000-4-20 7.10 7.10
n/a = not applicable; tbd = to be determined or is under consideration
7.1.2 Overview of maximum EUT volumes depending on measurement method,
frequency range, and measurement distance
7.1.2.1 Frequency range 9 kHz to 30 MHz

a) Maximum EUT dimensions for large-loop antenna system (LLAS) measurements are listed

in Table 9.

It is recommended to use a 3 m LLAS for 1,6 m < EUT dimensions ≤ 2,4 m, and to use a

4 m LLAS for 2,4 m < EUT dimensions ≤ 3,2 m.
Table 9 – Maximum EUT dimensions for different LLAS diameters,
9 kHz to 30 MHz
LLAS diameter 2 m 3 m 4 m
EUT dimension 1,6 m 2,4 m 3,2 m
The specified EUT dimension applies for the diameter of a sphere that fully
encompasses the EUT; e.g. for an EUT in the form of a cube, the maximum cube
side length for a 2 m LLAS will be (1,6 m)/√3 = 0,92 m; for a 3 m LLAS:
(2,4 m)/√3 = 1,39 m; and for a 4 m LLAS: (3,2 m)/√3 = 1,85 m. These maximum
EUT dimensions are the same as specified in CISPR 16-1-4.

b) Recommended maximum EUT dimensions for an OATS/SAC or an outdoor site are listed

in Table 10.

NOTE At present this document does not include a measurement method for magnetic field strength using a

distant single antenna (e.g. 60 cm loop antenna), so these recommended EUT dimensions apply for product

standards containing limits for magnetic field strength, e.g. CISPR 11.
---------------------- Page: 12 ----------------------
SIST EN 55016-2-3:2017/A1:2019
CISPR 16-2-3:2016/AMD1:2019 – 7 –
© IEC 2019
Table 10 – Recommended maximum EUT-volume diameter D (in m) and height h (in m),
OATS/SAC and outdoor site, 9 kHz to 30 MHz
Measurement distance 3 m 5 m 10 m 30 m
a b b d
D by h at OATS/SAC 1,5 by 1,5 2,0 by 2,0 5,0 by 4,0 15 by 4,0
c b b d
D by h at outdoor site 1,5 by 1,5 2,0 by 2,0 5,0 by 4,0 15 by 4,0
Test site specifications and validation methods for OATS/SAC are under
development.
EUT volumes less than or equal to those for d = 3 m (5 m) are small EUTs, as
defined in 3.1.35. Disturbance limits for larger EUTs can be defined for these

distances taking the EUT volume diameter into account (see e.g. [18]). Work is in

progress to define conditions for medium-sized EUT volumes.

An outdoor site is a non-validated test site without a conducting ground plane.

The EUT diameter for 30 m is proportional to the diameters for 3 m and 10 m. The

distance of 30 m is regarded as a protection distance, where any EUT volume that
is encompassed by the receive antenna beamwidth is acceptable. This table

includes the 30 m distance because it is specified in CISPR 11, regardless that an

associated validation method is not available or in preparation for the frequency

range 9 kHz to 30 MHz. EUT height is limited to 4 m, because heights greater than

4 m are not practically needed.
c) Maximum EUT dimensions in a TEM waveguide are as follows.

The usable test volume is 0,6W by 0,6L by 0,33H, where W = the (average) septum width,

H = the (average) septum height, and L = z – z , i.e. the region where the TEM mode

max min

requirements are fulfilled (see IEC 61000-4-20). The EUT volume is limited by the test

volume.
7.1.2.2 Frequency range 30 MHz to 1 000 MHz
a) Maximum EUT dimensions for an OATS/SAC and a FAR are listed in Table 11.
Table 11 – Maximum EUT-volume diameter D (in m) and height h (in m),
OATS/SAC and FAR, 30 MHz to 1 000 MHz
Measurement distance 3 m 5 m 10 m 30 m
a a
D by h at OATS/SAC 1,5 by 1,5 2,0 by 2,0 5,0 by 4,0 15 by 4,0
b b
D by h in FAR 1,5 by 1,5 2,0 by 2,0 3,0 by 3,0 -

NOTE EUT volumes less than or equal to those for d = 3 m (5 m) are small EUTs as defined in 3.1.35.

Work is in progress to define conditions for medium-sized EUT volumes.

For an OATS/SAC, the EUT volume at 10 m and 30 m distances is a recommendation only because

these distances may be regarded as protection distances, where any EUT volume that is

encompassed by the receive antenna beamwidth is accepted, provided that the test volume fulfils the

validation criteria.

Table 14 of CISPR 16-1-4 specifies maximum diameters and heights of the EUT volume for radiated

disturbance measurements in a FAR as 1,5 m, 2,5 m, and 5 m for measurement distances d = 3 m, 5

m, and 10 m, respectively. The reason why the maximum EUT dimensions are less than 2,5 m and 5

m at d = 5 m and 10 m, respectively, is mainly due to the near-field effect and the fact that a FAR is

an alternative test site.
b) Maximum EUT dimensions in a TEM waveguide are as follows.

The usable test volume is 0,6w by 0,6L by 0,33h. For definitions of w, L, and h, see

7.1.2.1 c).
c) Maximum EUT dimensions in a reverberation chamber (RC) are as follows.

At the lowest usable frequency of an RC, the EUT shall be at least λ/4 away from the

chamber walls. Additional space is required for the tuner/stirrer and for the transmit

antenna and receive antenna; see IEC 61000-4-21 for details.
---------------------- Page: 13 ----------------------
SIST EN 55016-2-3:2017/A1:2019
– 8 – CISPR 16-2-3:2016/AMD1:2019
© IEC 2019
7.1.2.3 Frequency range 1 GHz to 18 GHz
a) Recommended maximum EUT dimensions for an absorber-lined OATS/SAC and FAR are
listed in Table 12.

Table 12 – Recommended maximum EUT-volume diameter D (in m) and height h (in m) –

for reduced near-field uncertainty; absorber-lined OATS/SAC and FAR,
1 GHz to 18 GHz
Measurement distance 3 m 5 m 10 m
a,b
D by h in 1 GHz to 6 GHz 1,5 by 1,5 2,0 by 2,0 5,0 by 3,0
D by h in 6 GHz to 18 GHz 1,5 by 1,5 2,0 by 2,0 5,0 by 3,0

The minimum antenna beamwidths required for the EUT volumes in this table are 28º (for d =

3 m), 22,6º (for d = 5 m) and 22,6º (for d = 10 m), as determined using Equation (13); see

also Table 5.

At present CISPR 32 does not specify disturbance limits for frequencies above 6 GHz. If

CISPR disturbance limits for frequencies above 6 GHz are adopted, the EUT dimension

recommendations might have to be amended.
b) Maximum EUT dimensions in a TEM waveguide are as follows.

The usable test volume is 0,6w by 0,6L by 0,33h. For definitions of w, L, and h, see 7.1.2.1

c).
c) Maximum EUT dimensions in a reverberation chamber (RC) – see 7.1.2.2 c).
7.2.1 General

Replace, in the first sentence, the term “loop antenna system (LAS)” by the abbreviation

“LLAS”.
Replace, in the entire text, the abbreviation “LAS” by the abbreviation “LLAS”.
7.2.2 General measurement method
Replace, in the entire text, the abbreviation “LAS” by the abbreviation “LLAS”.

Add “strength” to read “magnetic field strength” in the first and second paragraphs.

7.2.3 Test environment
Replace, in the entire text, the abbreviation “LAS” by the abbreviation “LLAS”.
7.2.4 Configuration of the equipment under test
Replace, in the entire text, the abbreviation “LAS” by the abbreviation “LLAS”.
7.2.5 Measurement uncertainty for LAS
Replace, in the title, the abbreviaion "LAS" by the abbreviation "LLAS".
7.3.1 Measurand

Replace, in the ninth paragraph of this subclause "(see Equation (35) of CISPR 16-1-

4:2010/AMD1:2012)" by "(see Equation (13) of CISPR 16-1-4:2018)".
7.3.2 Test site requirements
Replace, in the first sentence, “test site” by “compliance test site (COMTS)”.
---------------------- Page: 14 ----------------------
SIST EN 55016-2-3:2017/A1:2019
CISPR 16-2-3:2016/AMD1:2019 – 9 –
© IEC 2019
7.3.4 Measurement distance

Replace in list item a) “d ≥ λ/6” by “d ≥ λ/(2π)”, and replace “a tuned dipole antenna” by “an

electrically small antenna, where D << λ”

Replace in list item b) “a tuned dipole antenna” by “an electrically small antenna, where

D << λ”
Replace the existing item c) by the following new item:

c) d ≥ D /(2λ), where D is the largest dimension of either the EUT or the antenna determining

the minimum aperture for the illumination of the EUT, which applies to cases where D >> λ

with deviations up to 1 dB; see Annex F for details about near-field effects.
7.6.1 Quantity to measure
Replace the existing title of this subclause by the following new title:
7.6.1 Measurand
Replace the existing first paragraph by the following text:

The quantity to be measured (measurand) is the maximum electric field strength emitted by

the EUT as a function of horizontal and vertical polarization over all angles of the azimuth

plane with the receive antenna height at the test volume centre at a preferred horizontal

distance of 3 m. This quantity shall be determined with the following provisions:

a) the frequency range of interest is 1 GHz to 18 GHz;

b) the quantity shall be expressed in terms of field strength units that correspond with the

units used to express the limit levels of this quantity;

c) the measurements shall be performed at an absorber-lined OATS/SAC or FAR test site,

and with a positioning table (if applicable), that complies with the validation requirements

in CISPR 16-1-4;
d) a measuring receiver compliant with CISPR 16-1-1 shall be used;

e) the use of alternative measurement distances shall comply with the criteria in 7.6.2 and

Table 12 (antenna beamwidth);

f) the measurement distance is the horizontal projection of the distance between the

boundary of the EUT and the antenna reference point to the floor;

g) the EUT is configured and operated in accordance with the CISPR specifications;

h) free-space antenna factors shall be used.
7.6.2 Measurement distance
Replace the existing first dashed item by the following new item:

– shorter distances in the case of high ambient noise, or to reduce the effect of unwanted

reflections; the measurement distance should be greater than or equal to D /(2λ) so that

deviations are not greater than 1 dB, where D is the largest dimension of the radiating

source or measurement antenna effective area (at the frequency of interest);
Add t
...

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