Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-5: Radio disturbance and immunity measuring apparatus - Antenna calibration sites and reference test sites for 5 MHz to 18 GHz

This part of CISPR 16 specifies the requirements for calibration sites in the frequency range
5 MHz to 18 GHz used to perform antenna calibrations according to CISPR 16-1-6. It also
specifies the requirements for reference test sites (REFTS) that are used for the validation of
compliance test sites (COMTS) in the frequency range 30 MHz to 1 000 MHz according to
CISPR 16-1-4.
It has the status of a basic EMC standard in accordance with IEC Guide 107, Electromagnetic
compatibility – Guide to the drafting of electromagnetic compatibility publications.
Measurement instrumentation specifications are given in CISPR 16-1-1 [1]1 and CISPR 16-1-
4. Further information and background on uncertainties in general is given in CISPR 16-4 [3],
which can also be helpful in establishing uncertainty estimates for the calibration processes of
antennas and site validation measurements.

Anforderungen an Geräte und Einrichtungen sowie Festlegung der Verfahren zur Messung der hochfrequenten Störaussendung (Funkstörungen) und Störfestigkeit - Teil 1-5: Geräte und Einrichtungen zur Messung der hochfrequenten Störaussendung (Funkstörungen) und Störfestigkeit - Messplätze für die Antennenkalibrierung und Referenz-Messplätze für den Frequenzbereich von 5 MHz bis 18 GHz

Spécification des méthodes et des appareils de mesure des perturbations radioélectriques et de l'immunité aux perturbations radioélectriques - Partie 1-5: Appareils de mesure des perturbations radioélectriques et de l'immunité aux perturbations radioélectriques - Emplacements d'étalonnage d'antenne et emplacements d'essai de référence pour la plage comprise entre 5 MHz et 18 GHz

Specifikacija za merilne naprave in metode za merjenje radijskih motenj in odpornosti - 1-5. del: Merilne naprave za merjenje radijskih motenj in odpornosti - Preskuševališča za kalibriranje anten in referenčna preskuševališča za 5 Mhz do 18 Mhz

Ta del standarda CISPR 16 določa zahteve za območja za umerjanje v frekvenčnem območju od 5 MHz do 18 GHz za umerjanje antene v skladu s standardom CISPR 16-1-6. Določa tudi zahteve za referenčna preskusna mesta (REFTS), ki se uporabljajo za preverjanje skladnosti preskusnih mest (COMTS) v frekvenčnem območju od 30 MHz do 1000 MHz v skladu s standardom CISPR 16-1-4.
Ima status osnovnega standarda o elektromagnetni združljivosti (EMC) v skladu z vodilom IEC Guide 107 Electromagnetic compatibility – Guide to the drafting of electromagnetic compatibility publications (Elektromagnetna združljivost – Vodilo za pripravo osnutkov publikacij o elektromagnetni združljivosti). Specifikacije za merilne instrumente so podane v standardih CISPR 16-1-1 [1]1 in CISPR 16-1- 4. Dodatne informacije o splošnih negotovostih so podane v standardu CISPR 16-4 [3], kar je lahko koristno pri ugotavljanju ocen negotovosti pri postopkih umerjanja anten in meritvah preverjanja mest.

General Information

Status
Published
Publication Date
17-Mar-2015
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
09-Mar-2015
Due Date
14-May-2015
Completion Date
18-Mar-2015

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SLOVENSKI STANDARD
SIST EN 55016-1-5:2015
01-april-2015
1DGRPHãþD
SIST EN 55016-1-5:2005
SIST EN 55016-1-5:2005/A1:2013
6SHFLILNDFLMD]DPHULOQHQDSUDYHLQPHWRGH]DPHUMHQMHUDGLMVNLKPRWHQMLQ

RGSRUQRVWLGHO0HULOQHQDSUDYH]DPHUMHQMHUDGLMVNLKPRWHQMLQRGSRUQRVWL

3UHVNXãHYDOLãþD]DNDOLEULUDQMHDQWHQLQUHIHUHQþQDSUHVNXãHYDOLãþD]D0K]GR
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Specification for radio disturbance and immunity measuring apparatus and methods -

Part 1-5: Radio disturbance and immunity measuring apparatus - Antenna calibration

sites and reference test sites for 5 MHz to 18 GHz
Anforderungen an Geräte und Einrichtungen sowie Festlegung der Verfahren zur

Messung der hochfrequenten Störaussendung (Funkstörungen) und Störfestigkeit - Teil

1-5: Geräte und Einrichtungen zur Messung der hochfrequenten Störaussendung
(Funkstörungen) und Störfestigkeit - Messplätze für die Antennenkalibrierung und
Referenz-Messplätze für den Frequenzbereich von 5 MHz bis 18 GHz
Ta slovenski standard je istoveten z: EN 55016-1-5:2015
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
33.100.20 Imunost Immunity
SIST EN 55016-1-5:2015 en

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

---------------------- Page: 1 ----------------------
SIST EN 55016-1-5:2015
---------------------- Page: 2 ----------------------
SIST EN 55016-1-5:2015
EUROPEAN STANDARD EN 55016-1-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2015
ICS 33.100.10; 33.100.20 Supersedes EN 55016-1-5:2004
English Version
Specification for radio disturbance and immunity measuring
apparatus and methods -
Part 1-5: Radio disturbance and immunity measuring apparatus -
Antenna calibration sites and reference
test sites for 5 MHz to 18 GHz
(CISPR 16-1-5:2014)

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

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

perturbations radioélectriques - Störaussendung (Funkstörungen) und Störfestigkeit -

Partie 1-5: Appareils de mesure des perturbations Teil 1-5: Geräte und Einrichtungen zur Messung der

radioélectriques et de l'immunité aux perturbations hochfrequenten Störaussendung (Funkstörungen) und

radioélectriques - Emplacements d'étalonnage d'antenne et Störfestigkeit - Messplätze für die Antennenkalibrierung und

emplacements d'essai de référence pour la plage comprise Referenz-Messplätze für den Frequenzbereich

entre 5 MHz et 18 GHz von 5 MHz bis 18 GHz
(CISPR 16-1-5:2014) (CISPR 16-1-5:2014)

This European Standard was approved by CENELEC on 2015-01-21. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard 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 European Standard 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels

© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 55016-1-5:2015 E
---------------------- Page: 3 ----------------------
SIST EN 55016-1-5:2015
EN 55016-1-5:2015 - 2 -
Foreword

The text of document CISPR/A/1086A/FDIS, future edition 2 of CISPR 16-1-5, prepared by

CISPR SC A “Radio-interference measurements and statistical methods" was submitted to the

IEC-CENELEC parallel vote and approved by CENELEC as EN 55016-1-5:2015.
The following dates are fixed:
(dop) 2015-10-21
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2018-01-21
standards conflicting with the
document have to be withdrawn
This document supersedes EN 55016-1-5:2004.

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

patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such

patent rights.
Endorsement notice

The text of the International Standard CISPR 16-1-5:2014 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 16-1-1:2010 NOTE Harmonized as EN 55016-1-1:2010 (not modified).

CISPR 16-1-1:2010/A1:2010 NOTE Harmonized as EN 55016-1-1:2010/A1:2010 (not modified).

CISPR 16-2-3:2010 NOTE Harmonized as EN 55016-2-3:2010 (not modified).

CISPR 16-2-3:2010/A1:2010 NOTE Harmonized as EN 55016-2-3:2010/A1:2010 (not modified).

CISPR 16-4 Series NOTE Only Part 4-2 harmonized as EN 55016-4-2.
---------------------- Page: 4 ----------------------
SIST EN 55016-1-5:2015
- 3 - EN 55016-1-5:2015
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE 1 When 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
CISPR 16-1-4 2010 Specification for radio disturbance EN 55016-1-4 2010
and immunity measuring apparatus
+A1 2012 +A1 2012
and methods -
Part 1-4: Radio disturbance and immunity
measuring apparatus - Antennas and test
sites for radiated disturbance
measurements
CISPR 16-1-6 2014 Specification for radio disturbance EN 55016-1-6 2015
and immunity measuring apparatus
and methods -
Part 1-6: Radio disturbance
and immunity measuring apparatus -
EMC-antenna calibration
IEC 60050 Series International Electrotechnical Vocabulary - -
---------------------- Page: 5 ----------------------
SIST EN 55016-1-5:2015
---------------------- Page: 6 ----------------------
SIST EN 55016-1-5:2015
CISPR 16-1-5
Edition 2.0 2014-12
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

Specification for radio disturbance and immunity measuring apparatus and methods –

Part 1-5: Radio disturbance and immunity measuring apparatus – Antenna calibration

sites and reference test sites for 5 MHz to 18 GHz
Spécification des méthodes et des appareils de mesure des perturbations
radioélectriques et de l'immunité aux perturbations radioélectriques –

Partie 1-5: Appareils de mesure des perturbations radioélectriques et de l'immunité aux

perturbations radioélectriques – Emplacements d'étalonnage d'antenne et
emplacements d'essai de référence pour la plage comprise entre 5 MHz et 18 GHz
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XD
ICS 33.100.10; 33.100.20 ISBN 978-2-8322-1932-4

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 55016-1-5:2015
– 2 – CISPR 16-1-5:2014  IEC 2014
CONTENTS

FOREWORD ........................................................................................................................... 6

INTRODUCTION ..................................................................................................................... 8

1 Scope ............................................................................................................................ 10

2 Normative references .................................................................................................... 10

3 Terms, definitions and abbreviations ............................................................................. 10

3.1 Terms and definitions ............................................................................................ 10

3.1.1 Antenna terms ............................................................................................... 11

3.1.2 Measurement site terms ................................................................................ 13

3.1.3 Other terms ................................................................................................... 14

3.2 Abbreviations ........................................................................................................ 15

4 Specifications and validation procedures for CALTS and REFTS from 5 MHz to

1 000 MHz ..................................................................................................................... 16

4.1 General ................................................................................................................. 16

4.2 Antenna calibration test site (CALTS) specification ............................................... 16

4.2.1 General ......................................................................................................... 16

4.2.2 Normative specification .................................................................................. 17

4.3 Test antenna specification .................................................................................... 17

4.3.1 General ......................................................................................................... 17

4.3.2 Details of the required characteristics of the test antenna .............................. 18

4.4 Antenna calibration test site validation procedure ................................................. 20

4.4.1 General ......................................................................................................... 20

4.4.2 Test set-up .................................................................................................... 20

4.4.3 Test frequencies and receive antenna heights ............................................... 22

4.4.4 SIL measurements ......................................................................................... 22

4.4.5 Swept frequency SIL measurements .............................................................. 25

4.4.6 Identifying and reducing reflections from antenna supports ............................ 28

4.5 Antenna calibration test site acceptance criteria ................................................... 28

4.5.1 General ......................................................................................................... 28

4.5.2 Measurement uncertainties ............................................................................ 28

4.5.3 Acceptance criteria ........................................................................................ 29

4.6 Calibration site with a metal ground plane for biconical antennas and tuned

dipole antennas over the frequency range 30 MHz to 300 MHz ............................. 30

4.7 Validation of a REFTS .......................................................................................... 31

4.7.1 General ......................................................................................................... 31

4.7.2 Validation for horizontal polarization .............................................................. 31

4.7.3 Validation for vertical polarization .................................................................. 31

4.8 Validation report for CALTS and REFTS ............................................................... 33

4.8.1 General ......................................................................................................... 33

4.8.2 Validation report requirements ....................................................................... 33

4.9 Site validation for the calibration of biconical and dipole antennas, and the

biconical part of hybrid antennas in vertical polarization ........................................ 34

4.10 Validation of a CALTS using vertical polarization from 5 MHz to 30 MHz for

the calibration of monopole antennas .................................................................... 35

4.10.1 General ......................................................................................................... 35

4.10.2 Uncertainty evaluation ................................................................................... 36

5 Validation methods for a FAR from 30 MHz to 18 GHz ................................................... 36

5.1 General ................................................................................................................. 36

---------------------- Page: 8 ----------------------
SIST EN 55016-1-5:2015
CISPR 16-1-5:2014  IEC 2014 – 3 –

5.2 Validation procedure 1 GHz to 18 GHz .................................................................. 37

5.2.1 Power transfer between two antennas ........................................................... 37

5.2.2 Measurement procedure for validation from 1 GHz to 18 GHz ........................ 37

5.2.3 Analysis of results ......................................................................................... 39

5.2.4 Acceptance criterion ...................................................................................... 40

5.2.5 Chamber performance versus polarization ..................................................... 41

5.2.6 Uncertainty .................................................................................................... 41

5.3 Validation of a FAR for the calibration of antennas by alternative methods............ 42

5.3.1 General ......................................................................................................... 42

5.3.2 Validation of a FAR from 30 MHz to 1 GHz .................................................... 42

5.3.3 Alternative validation of a FAR for the calibration of LPDA antennas

above 1 GHz.................................................................................................. 42

5.3.4 Alternative validation of a FAR applying time-domain measurements

above 500 MHz.............................................................................................. 43

6 Validation methods for sites used for the calibration of directive antennas ..................... 43

6.1 Validation of the calibration site minimizing ground reflection by a height

≥ 4 m .................................................................................................................... 43

6.1.1 Measurement procedure ................................................................................ 43

6.1.2 Uncertainties ................................................................................................. 45

6.2 Validation of the calibration site minimizing ground reflection by use of

absorber ............................................................................................................... 46

7 Site validation by comparison of antenna factors, and application of RSM to

evaluate the uncertainty contribution of a SAC site ........................................................ 47

7.1 Use of SAM for site validation by comparison of antenna factors .......................... 47

7.2 Application of RSM to evaluate the measurement uncertainty contribution of

a calibration site comprising a SAC ....................................................................... 48

Annex A (informative) CALTS characteristics and validation ................................................ 50

A.1 General ................................................................................................................. 50

A.2 The reflecting plane .............................................................................................. 50

A.2.1 Reflecting plane construction ......................................................................... 50

A.2.2 Plane-edge effects and plane surroundings ................................................... 51

A.3 Ancillary equipment .............................................................................................. 51

A.4 Additional stringent CALTS validation testing ........................................................ 52

A.4.1 General ......................................................................................................... 52

A.4.2 Antenna-height scan measurements .............................................................. 52

A.4.3 Frequency scan measurements ..................................................................... 53

Annex B (informative) Test antenna considerations............................................................. 56

B.1 General ................................................................................................................. 56

B.2 Example and verification of a test antenna ............................................................ 56

B.3 Determination of balun properties ......................................................................... 58

B.3.1 The ideal lossless balun ................................................................................ 58

B.3.2 Relations between balun properties and S-parameters ................................... 59

B.3.3 Insertion loss measurements ......................................................................... 60

Annex C (informative) Antenna and SIL theory .................................................................... 63

C.1 Analytical relations ................................................................................................ 63

C.1.1 General ......................................................................................................... 63

C.1.2 Total length of the test antenna ..................................................................... 64

C.1.3 Theoretical SIL .............................................................................................. 65

C.1.4 Calculation example ...................................................................................... 69

---------------------- Page: 9 ----------------------
SIST EN 55016-1-5:2015
– 4 – CISPR 16-1-5:2014  IEC 2014

C.2 Computations by the MoM..................................................................................... 72

C.2.1 General ......................................................................................................... 72

C.2.2 Antenna input impedance .............................................................................. 73

C.2.3 Total length of the test antenna ..................................................................... 73

C.2.4 SIL computations ........................................................................................... 73

C.2.5 Antenna factor (AF) computations .................................................................. 80

Annex D (informative) Pascal Program used in C.1.4 ........................................................... 84

Annex E (informative) Validation procedure checklist ........................................................... 88

Annex F (informative) Evidence that field taper of VP site validation method has

negligible effect on measured antenna factor ........................................................................ 90

F.1 Investigation of vertical field taper ......................................................................... 90

F.2 Calibration of biconical antennas using vertical polarization .................................. 90

Bibliography .......................................................................................................................... 92

Figure 1 – Schematic diagram of the test antenna ................................................................ 18

Figure 2 – Adjustment of a telescopic wire element to the length L ................................... 19

Figure 3 – Determination of V (f) or V (f) ........................................................................... 23

r1 r2

Figure 4 – Determination of V (f) with the wire antennas in their specified positions ............. 23

Figure 5 – Example NSIL: horizontal polarization, antenna height 2 m, separation

10 m ..................................................................................................................................... 26

Figure 6 – NSIL of the four pairs of calculable dipoles at 10 m separation and using

the alternative heights for the 600 MHz to 1 000 MHz pair according to Table 5 .................... 27

Figure 7 – Relation between the quantities used in the SIL acceptance criterion ................... 29

Figure 8 – Set-up of site validation for EMC antenna calibrations above 1 GHz in a

FAR, also showing distance between antenna phase centres ................................................ 38

Figure 9 – Example plots of [A (d) − A (d )] in dB against distance in m at 1 GHz

i m i m 3 m

to 18 GHz in 1 GHz steps, corrected for LPDA and horn phase centres ................................ 40

Figure 10 – Example of antenna set-up for an LPDA antenna calibration in the

frequency range above 200 MHz ........................................................................................... 44

Figure 11 – Example of SIL versus antenna height measured at 200 MHz with two
LPDA antennas in vertical polarization at 2,5 m distance between their midpoints

above the reflecting ground plane of an OATS ...................................................................... 45

Figure 12 – Illustration of distances of transmit horn to omni-directional receive

antenna and reflective building, and transmitted signal paths A and B .................................. 45

Figure B.1 – Example of a test antenna ................................................................................ 58

Figure B.2 – Diagram of the measurement of S and S , and of S and S , when
11 12 22 21

generator and load are interchanged .................................................................................... 59

Figure B.3 – Schematic diagram for determination of the insertion loss A (f) ........................ 61

Figure B.4 – Schematic diagram for determination of the insertion loss A (f) ........................ 61

Figure C.1 – Network model for A calculations .................................................................. 66

i c

Figure C.2 – Equivalent circuit to the network in Figure C.1 .................................................. 66

Figure C.3 – Definition of the mutual couplings, feed-terminal voltages and antenna

currents of the antennas above the reflecting plane and their images ................................... 67

Figure C.4 – Cascade combination of the baluns and the site two-port network .................... 74

Figure C.5 – Flow chart showing how SIL is obtained by combining the measured balun

S-parameters and the NEC calculated S-parameters of the site two-port network .................. 75

Figure F.1 – Field uniformity with height step 1 m to 2,6 m, normalized to field at 1,8 m

height; monocone at 15 m range ........................................................................................... 90

---------------------- Page: 10 ----------------------
SIST EN 55016-1-5:2015
CISPR 16-1-5:2014  IEC 2014 – 5 –

Figure F.2 – Averaging of height steps, SAM, B.4.2 in CISPR 16-1-6:2014 ........................... 91

Table 1 – Summary of site validation methods by subclause number ...................................... 9

Table 2 – Maximum tolerances for d = 10 m .......................................................................... 18

Table 3 – Frequency and fixed receive antenna height data for SIL measurements at

24 frequencies, with h = 2 m and d = 10 m [specified in 4.4.2.3 and 4.4.2.4] ........................ 22

Table 4 – RSM frequency steps ............................................................................................ 25

Table 5 (informative) – Antenna heights for SIL measurements ............................................. 26

Table 6 – Antenna set-up for the SIL measurement of the calibration site using

horizontally polarized resonant dipole antennas (see also 4.4.4 for SIL at 250 MHz and

300 MHz) .............................................................................................................................. 31

Table 7 – Antenna heights .................................................................................................... 32

Table 8 – Example measurement uncertainty budget for SIL between two monopole

antennas ............................................................................................................................... 36

Table 9 – Example measurement uncertainty budget for FAR validation method at and

above 1 GHz ......................................................................................................................... 41

Table 10 – Example measurement uncertainty budget for the site validation method in

6.1.1 ..................................................................................................................................... 46

Table 11 – Maximum tolerances for validation set-up at d = 10 m ......................................... 49

Table A.1 – Example of fixed-length calculable dipole antennas and their subdivision of

the frequency range 30 MHz to 1 000 MHz ........................................................................... 51

Table A.2 – Receive antenna heights and centre frequencies ............................................... 54

Table C.1 – Example numerical (analytical) calculation of L , A (see C.1.4.2) ................... 69

a i c

Table C.2 – Example numerical (analytical) calculation of ∆A (see C.1.4.3) ......................... 71

Table C.3 – Example numerical (analytical) calculation of h and ∆h ................................. 72

rc rt

Table C.4 – Example numerical (analytical) calculation of f and ∆f ..................................... 72

c t

Table C.5 – MoM example calculation of A for vertical polarization, h = 2 m, except

i c t

h = 2,75 m at 30 MHz, 35 MHz and 40 MHz ......................................................................... 78

---------------------- Page: 11 ----------------------
SIST EN 55016-1-5:2015
– 6 – CISPR 16-1-5:2014  IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
____________
SPECIFICATION FOR RADIO DISTURBANCE AND IMMUNITY
MEASURING APPARATUS AND METHODS –
Part 1-5: Radio disturbance and immunity measuring apparatus –
Antenna calibration sites and reference test sites for 5 MHz to 18 GHz
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 ha
...

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