SIST EN IEC 62037-4:2012/oprA1:2025

Amendment 1 - Passive RF and microwave devices, intermodulation level measurement - Part 4: Measurement of passive intermodulation in coaxial cables

Passive HF- und Mikrowellenbauteile, Messung des Intermodulationspegels - Teil 4: Messung der passiven Intermodulation in koaxialen Kabeln

Amendement 1 - Dispositifs RF et à micro-ondes passifs, mesure du niveau d'intermodulation - Partie 4: Mesure de l'intermodulation passive dans les câbles coaxiaux

Pasivne radiofrekvenčne (RF) in mikrovalovne naprave, meritve intermodulacijskega nivoja - 4. del: Meritve pasivne intermodulacije v koaksialnih kablih - Dopolnilo A1

General Information

• Status: Not Published
• Public Enquiry End Date: 24-Apr-2025
• ICS: 33.120.10 - Coaxial cables. Waveguides
• ICS: 33.120.30 - RF connectors
• Technical Committee: MOC - Mobile Communications
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 05-Feb-2025
• Due Date: 25-Jun-2025
• Completion Date: 17-Apr-2025
• Ref Project: EN 62037-4:2012/A1:2026 - Passive RF and microwave devices, intermodulation level measurement - Part 4: Measurement of passive intermodulation in coaxial cables

Relations

• Amends: SIST EN 62037-4:2012 - Passive r.f. and microwave devices, intermodulation level measurement - Part 4: Measurement of passive intermodulation in coaxial cables (IEC 62037-4:2012)
• Effective Date: 06-Feb-2024

Overview

SIST EN IEC 62037-4:2012/oprA1:2025 is an essential international standard developed by the International Electrotechnical Commission (IEC) under CLC stewardship. It addresses the measurement of passive intermodulation (PIM) in coaxial cables, focusing on both static and dynamic test procedures to assess the intermodulation levels generated by passive RF and microwave devices. This technical amendment (Amendment 1) refines measurement protocols for accurate and repeatable assessment of PIM, which is critical for ensuring high-performance operation in RF and microwave communication systems.

Key Topics

• Passive Intermodulation (PIM) Measurement
  The standard specifies methods for measuring PIM, an unwanted signal distortion generated by passive components such as coaxial cables. PIM can severely degrade signal quality in wireless systems.

• Dynamic and Static Test Procedures
  Amendment 1 clarifies the testing process, emphasizing the recording of the maximum PIM levels under various conditions:

  • Static conditions before and after movement.
  • Dynamic conditions, such as clamping and flexing of cable loops, to simulate real-world mechanical stress.

• Coaxial Cable Focus
  This part of the EN 62037 series is specifically tailored for coaxial cables, components widely used in RF signal transmission for telecommunications, broadcasting, and radar systems.

• Electromagnetic Compatibility (EMC) Considerations
  The standard aligns with EMC directives, ensuring that the coaxial cables under test do not contribute to interference that could affect communication system performance.

• International Collaboration
  Developed in compliance with ISO/IEC Directives, the standard benefits from a consensus among global electrotechnical committees to harmonize testing practices.

Applications

• Wireless Network Infrastructure
  Ensuring minimal passive intermodulation in coaxial cables used in base stations, antennas, and repeater systems improves signal clarity and reduces dropped connections.

• RF and Microwave Systems Testing
  Manufacturers and test labs apply this standard to verify the quality and reliability of coaxial cables before deployment in sensitive telecommunications, military, or aerospace systems.

• Quality Control in Cable Production
  Cable producers use these measurement procedures to control manufacturing consistency and certify product compliance with international performance requirements.

• System Maintenance and Troubleshooting
  Field engineers utilize PIM measurement techniques defined in this standard to identify and mitigate issues related to cable degradation or connector faults that may cause intermodulation distortion.

Related Standards

• EN IEC 62037-1:2012 – General Methods for Measurement of Passive Intermodulation.
• EN IEC 62037-2:2012 – Measurement Techniques for RF Connectors.
• EN IEC 62037-3:2012 – Measurement Methods for Waveguide Components.
• ISO/IEC Directives Parts 1 & 2 – Normative guidance for the development and drafting of international standards.

Summary

SIST EN IEC 62037-4:2012/oprA1:2025 provides a critical framework for the accurate measurement of passive intermodulation in coaxial cables, ensuring high fidelity in RF and microwave transmission lines. By defining strict procedures for dynamic and static testing, recording the maximum intermodulation levels under various mechanical conditions, the standard supports manufacturers, test labs, and system operators in achieving optimal electromagnetic compatibility and signal integrity. Adoption of this standard helps mitigate intermodulation interference, improving overall system performance in the wireless communication industry.

Keywords: passive intermodulation, PIM measurement, coaxial cables, RF testing, microwave devices, electromagnetic compatibility, EN 62037-4, IEC standards, dynamic PIM test, static PIM test, RF connectors, telecom infrastructure, signal integrity.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2025
Pasivne radiofrekvenčne (RF) in mikrovalovne naprave, meritve
intermodulacijskega nivoja - 4. del: Meritve pasivne intermodulacije v koaksialnih
kablih - Dopolnilo A1
Amendment 1 - Passive RF and microwave devices, intermodulation level measurement
- Part 4: Measurement of passive intermodulation in coaxial cables
Passive HF- und Mikrowellenbauteile, Messung des Intermodulationspegels - Teil 4:
Messung der passiven Intermodulation in koaxialen Kabeln
Amendement 1 - Dispositifs RF et à micro-ondes passifs, mesure du niveau
d'intermodulation - Partie 4: Mesure de l'intermodulation passive dans les câbles
coaxiaux
Ta slovenski standard je istoveten z: EN IEC 62037-4:2012/prA1:2025
ICS:
33.120.10 Koaksialni kabli. Valovodi Coaxial cables. Waveguides
33.120.30 Radiofrekvenčni konektorji RF connectors
(RF)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

46/1029/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62037-4/AMD1 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-01-31 2025-04-25
SUPERSEDES DOCUMENTS:
46/1014/CD, 46/1025/CC
IEC TC 46 : CABLES, WIRES, WAVEGUIDES, RF CONNECTORS, RF AND MICROWAVE PASSIVE COMPONENTS AND ACCESSORIES
SECRETARIAT: SECRETARY:
United States of America Mr David Hess
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
SC 46A,SC 46F
ASPECTS CONCERNED:
Electromagnetic Compatibility
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of CENELEC,
is drawn to the fact that this Committee Draft for Vote (CDV) is
submitted for parallel voting.
The CENELEC members are invited to vote through the CENELEC
online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are aware
and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clauses to be
included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC clauses. (SEE
AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Amendment 1 – Passive RF and microwave devices, intermodulation level measurement – Part 4: Measurement of
passive intermodulation in coaxial cables

PROPOSED STABILITY DATE: 2028
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

46/1029/CDV – 2 – IEC CDV 62037-4:2012/
AMD1 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PASSIVE RF AND MICROWAVE DEVICES,
INTERMODULATION LEVEL MEASUREMENT –

Part 4: Measurement of passive intermodulation in coaxial cables

AMENDMENT 1
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 an
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