IEC 62037-2:2021
(Main)Passive RF and microwave devices, intermodulation level measurement - Part 2: Measurement of passive intermodulation in coaxial cable assemblies
Passive RF and microwave devices, intermodulation level measurement - Part 2: Measurement of passive intermodulation in coaxial cable assemblies
IEC 62037-2:2021 defines a procedure to measure levels of passive intermodulation generated by a coaxial cable assembly. This test method is applicable to jumper cables, i.e. cable assemblies intended to provide interface flexibility between rigid devices. It is also used to evaluate cable assemblies that are subjected to motion in operation.
This second edition cancels and replaces the first edition published in 2012. This edition includes the following significant technical changes with respect to the previous edition:
a. criteria for application of mechanical stress revised to be a function of advertised cable bend radius.
Dispositifs RF et à micro-ondes passifs, mesure du niveau d'intermodulation - Partie 2: Mesure de l'intermodulation passive dans les cordons coaxiaux
IEC 62037-2:2021 définit une procédure pour la mesure des niveaux d’intermodulation passive générés par un cordon coaxial. Cette méthode d’essai s’applique aux jarretières, c’est-à-dire aux cordons destinés à fournir une interface flexible entre des dispositifs rigides. Elle est également utilisée pour évaluer des cordons soumis à des mouvements pendant leur fonctionnement. Cette seconde édition annule et remplace la première édition parue en 2012. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a. révision des critères d’application des contraintes mécaniques pour être fonction du rayon de courbure du câble annoncé.
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Standards Content (Sample)
IEC 62037-2 ®
Edition 2.1 2025-12
INTERNATIONAL
STANDARD
CONSOLIDATED VERSION
Passive RF and microwave devices, intermodulation level measurement -
Part 2: Measurement of passive intermodulation in coaxial cable assemblies
ICS 33.040.20; 33.120.10 ISBN 978-2-8327-0921-4
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or
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CONTENTS
FOREWORD . 2
INTRODUCTION to Amendment . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviations . 5
3.1 Terms and definitions. 5
3.2 Abbreviations . 5
4 Test method . 5
4.1 General . 5
4.2 Test conditions . 5
5 Procedure . 7
6 Report . 8
Figure 1 – PIM test set-up example. 6
Figure 2 – Rotation of cable . 7
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Passive RF and microwave devices, intermodulation level measurement -
Part 2: Measurement of passive intermodulation in coaxial cable
assemblies
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 have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
This consolidated version of the official IEC Standard and its amendment has been prepared
for user convenience.
IEC 62037-2 edition 2.1 contains the second edition (2021-11) [documents 46/835/FDIS and
46/856/RVD] and its amendment 1 (2025-12) [documents 46/1028/CDV and 46/1054/RVC].
In this Redline version, a vertical line in the margin shows where the technical content is
modified by amendment 1. Additions are in green text, deletions are in strikethrough red text.
A separate Final version with all changes accepted is available in this publication.
IEC 62037-2 has been prepared by IEC technical committee 46: Cables, wires, waveguides, RF
connectors, RF and microwave passive components and accessories. It is an International
Standard.
This second edition cancels and replaces the first edition published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) criteria for application of mechanical stress revised to be a function of advertised cable bend
radius.
The text of this International Standard is based on the following documents:
Draft Report on voting
46/835/FDIS 46/856/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all the parts in the IEC 62037 series, published under the general title Passive RF and
microwave devices, Intermodulation level measurement can be found on the IEC website.
The committee has decided that the contents of this document and its amendment will remain
unchanged until the stability date indicated on the IEC website under webstore.iec.ch in the
data related to the specific document. At this date, the document will be
– reconfirmed,
– withdrawn, or
– revised.
INTRODUCTION to Amendment
The purpose of this amendment is:
– to correct 4.1 Test methods, general, list item a): to plural connectors and cables.
– to improve 4.2 Test methods, test conditions, paragraphs 4, 5, and 6; and Clause 5
Procedure, paragraph 1; and Clause 6 Report, paragraph 1: to add individual, e.g. "to be
performed on each individual cable".
– to correct Clause 5 Procedure, list items c) and g); and Clause 6 Report list items c), d),
and e): to add "maximum" to the PIM level to be measured and reported.
1 Scope
This part of IEC 62037 defines a procedure to measure levels of passive intermodulation
generated by a coaxial cable assembly.
This test method is applicable to jumper cables, i.e. cable assemblies intended to provide
interface flexibility between rigid devices. It is also used to evaluate cable assemblies that are
subjected to motion in operation.
2 Normative references
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.
IEC 62037-1:2021, Passive RF and microwave devices, intermodulation level measurement –
Part 1: General requirements and measuring methods
IEC 62037-3, Passive RF and microwave devices, intermodulation level measurement – Part 3:
Measurement of passive intermodulation in coaxial connectors
IEC 62037-4, Passive RF and microwave devices, intermodulation level measurement – Part 4:
Measurement of passive intermodulation in coaxial cables
3 Terms, definitions and abbreviations
3.1 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.2 Abbreviations
DUT Device under test
PIM Passive intermodulation
4 Test method
4.1 General
The connectors and cables shall meet their appropriate requirements.
a) The connectors used for this test shall comply with its their specification when subjected to
the impact test specified in IEC 62037-3.
b) The cable used for this test shall comply with its specification when subjected to its specified
bend test when tested in accordance with IEC 62037-4.
4.2 Test conditions
Set-up 1 and set-up 2 are applicable in this PIM-test. Either set-up 1 (reverse method, see
IEC 62037-1:2021, 6.2.2), or set-up 2 (forward method, see IEC 62037-1:2021, 6.2.3), may be
used for cable assemblies, provided that the attenuation of the assembly is not greater than
1 dB. For higher attenuation, the reverse method shall be used.
The connector under test should be clamped and mechanically secured to prevent its movement
during the test.
A mechanical rotational stress is applied to the DUT. This mechanical stress is defined by a
distance d, between the end of the cable-entry (the last rigid mechanical point of the connector)
and the point of the deflection and circular movement around the cable axis with a radius r.
This test shall be performed on each end independently and shall be performed on each
individual cable of a multi-channel cable assembly. An example of a test
...
IEC 62037-2 ®
Edition 2.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Passive RF and microwave devices, intermodulation level measurement –
Part 2: Measurement of passive intermodulation in coaxial cable assemblies
Dispositifs RF et à micro-ondes passifs, mesure du niveau d’intermodulation –
Partie 2: Mesure de l’intermodulation passive dans les cordons coaxiaux
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
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IEC 62037-2 ®
Edition 2.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Passive RF and microwave devices, intermodulation level measurement –
Part 2: Measurement of passive intermodulation in coaxial cable assemblies
Dispositifs RF et à micro-ondes passifs, mesure du niveau d’intermodulation –
Partie 2: Mesure de l’intermodulation passive dans les cordons coaxiaux
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.040.20; 33.120.10 ISBN 978-2-8322-1048-1
– 2 – IEC 62037-2:2021 © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviations . 5
3.1 Terms and definitions . 5
3.2 Abbreviations . 5
4 Test method . 6
4.1 General . 6
4.2 Test conditions . 6
5 Procedure . 8
6 Report . 8
Figure 1 – PIM test set-up example . 7
Figure 2 – Rotation of cable . 7
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PASSIVE RF AND MICROWAVE DEVICES,
INTERMODULATION LEVEL MEASUREMENT –
Part 2: Measurement of passive intermodulation
in coaxial cable assemblies
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 have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of
IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other
IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 62037-2 has been prepared by IEC technical committee 46: Cables, wires, waveguides, RF
connectors, RF and microwave passive components and accessories. It is an International
Standard.
This second edition cancels and replaces the first edition published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) criteria for application of mechanical stress revised to be a function of advertised cable bend
radius.
– 4 – IEC 62037-2:2021 © IEC 2021
The text of this International Standard is based on the following documents:
Draft Report on voting
46/835/FDIS 46/856/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all the parts in the IEC 62037 series, published under the general title Passive RF and
microwave devices, Intermodulation level measurement can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The "colour inside" logo on the cover page of this document 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.
PASSIVE RF AND MICROWAVE DEVICES,
INTERMODULATION LEVEL MEASUREMENT –
Part 2: Measurement of passive intermodulation
in coaxial cable assemblies
1 Scope
This part of IEC 62037 defines a procedure to measure levels of passive intermodulation
generated by a coaxial cable assembly.
This test method is applicable to jumper cables, i.e. cable assemblies intended to provide
interface flexibility between rigid devices. It is also used to evaluate cable assemblies that are
subjected to motion in operation.
2 Normative references
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.
IEC 62037-1:2021, Passive RF and microwave devices, intermodulation level measurement –
Part 1: General requirements and measuring methods
IEC 62037-3, Passive RF and microwave devices, intermodulation level measurement – Part 3:
Measurement of passive intermodulation in coaxial connectors
IEC 62037-4, Passive RF and microwave devices, intermodulation level measurement – Part 4:
Measurement of passive intermodulation in coaxial
...
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