IEC 61196-1-127:2024

IEC 61196-1-127 ®
Edition 1.0 2024-03
INTERNATIONAL
STANDARD
Coaxial communication cables –
Part 1-127: Electrical test methods – Link loss of radiating cable

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IEC 61196-1-127 ®
Edition 1.0 2024-03
INTERNATIONAL
STANDARD
Coaxial communication cables –

Part 1-127: Electrical test methods – Link loss of radiating cable

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.120.10  ISBN 978-2-8322-8314-1

– 2 – IEC 61196-1-127:2024 © IEC 2024
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Test equipment . 6
4.1 Signal generator . 6
4.2 Receiver . 6
4.3 Trolley . 6
4.4 Antenna . 6
4.5 Load . 6
4.6 Connecting cables and connectors . 6
4.7 Data collection system and calculations . 7
5 Test arrangements . 10
5.1 General . 10
5.2 Free-space method . 10
5.3 Ground-level method. 12
6 Test conditions . 14
7 Test methods . 14
7.1 General . 14
7.2 Complete sample test method . 14
7.2.1 Test sample (TS) preparation . 14
7.2.2 Test procedure . 14
7.3 Segmented samples test method . 14
7.3.1 Test sample (TS) preparation . 14
7.3.2 Test procedure . 15
7.4 Attenuation and coupling loss test method . 16
7.4.1 General . 16
7.4.2 Test sample (TS) preparation . 18
7.4.3 Test procedure . 18
8 Requirement . 18
9 Test report . 19

Figure 1 – Illustration of section-wise link loss calculation of 50 % reception probability . 8
Figure 2 – Illustration of link loss calculation of 50 % reception probability of entire
tested length . 9
Figure 3 – Test arrangement for free-space method . 11
Figure 4 – Antenna orientations with free-space method . 12
Figure 5 – Test arrangement for ground-level method . 13
Figure 6 – Antenna orientations with ground-level method . 13
Figure 7 – Segmented test samples . 15
Figure 8 – Segmented samples test . 16
Figure 9 – Schematic diagram of the link loss of the radiating cable. 17
Figure 10 – Segmented test samples for attenuation + coupling loss test method . 17

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
COAXIAL COMMUNICATION CABLES –

Part 1-127: Electrical test methods – Link loss of radiating cable

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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IEC 61196-1-127 has been prepared by subcommittee 46A: Coaxial cables, of IEC technical
committee 46: Cables, wires, waveguides, RF connectors, RF and microwave passive
components and accessories. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
46A/1661/FDIS 46A/1670/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

– 4 – IEC 61196-1-127:2024 © IEC 2024
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/publications.
A list of all parts in the IEC 61196 series, published under the general title Coaxial
communication cables, 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, or
• revised.
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.

COAXIAL COMMUNICATION CABLES –

Part 1-127: Electrical test methods – Link loss of radiating cable

1 Scope
This part of IEC 61196 applies to radiating cables. It specifies a test method for determining the
link loss of radiating cables for use in communication systems.
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 60068-1:2013, Environmental testing – Part 1: General and guidance
IEC 61196-1, Coaxial communication cables – Part 1: Generic specification − General,
definitions and r
...