IEC 60728-2:2018

IEC 60728-2 ®
Edition 3.0 2018-01
INTERNATIONAL
STANDARD
Cable networks for television signals, sound signals and interactive services –
Part 2: Electromagnetic compatibility for equipment
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IEC 60728-2 ®
Edition 3.0 2018-01
INTERNATIONAL
STANDARD
Cable networks for television signals, sound signals and interactive services –

Part 2: Electromagnetic compatibility for equipment

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.160.99 ISBN 978-2-8322-5148-5

– 2 – IEC 60728-2:2018 © IEC 2018
CONTENTS
CONTENTS . 2
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 10
3 Terms, definitions, symbols and abbreviated terms . 10
3.1 Terms and definitions . 10
3.2 Symbols . 16
3.3 Abbreviated terms . 17
4 Methods of measurements . 17
4.1 General operating conditions . 17
4.2 Disturbance voltages from equipment . 18
4.2.1 Disturbance voltages from equipment in the frequency range from
150 kHz to 30 MHz . 18
4.2.2 Disturbance voltages from equipment at the AC mains frequency and its
harmonics . 18
4.2.3 Measurement of input terminal disturbance voltage . 19
4.3 Radiation from active equipment. 19
4.3.1 General . 19
4.3.2 General measurement requirements . 19
4.3.3 Methods of measurements . 20
4.4 Immunity of active equipment . 29
4.4.1 General . 29
4.4.2 Performance criterion . 29
4.4.3 Measurement of the external immunity to ambient fields . 30
4.4.4 Internal immunity (immunity to unwanted signals) . 36
4.5 Screening effectiveness of passive equipment . 42
4.5.1 General . 42
4.5.2 General measurement requirements . 42
4.5.3 Methods of measurements . 42
4.6 Electrostatic discharge immunity test for active equipment . 44
4.6.1 General . 44
4.6.2 Performance criterion B (according to IEC 61000-6-1:2016) . 44
4.7 Electrical fast transient/burst immunity test for AC power ports . 44
4.8 Methods of measurement for telecom signal ports of multimedia network
equipment . 44
4.9 Measurement of indoor receiving antennas for broadcast signals . 44
4.9.1 Indoor antennas with additional RF network input port . 44
4.9.2 Indoor antennas without additional RF network input port . 45
5 Performance requirements . 45
5.1 General . 45
5.1.1 Emission performance requirements . 45
5.1.2 Immunity performance requirements . 45
5.2 Disturbance voltages from equipment . 45
5.2.1 Limits of mains terminal disturbance voltage . 45
5.2.2 Limits of input terminal disturbance voltages . 45
5.3 Radiation . 46

5.3.1 Radiation from active equipment . 46
5.3.2 Local oscillator power at the outdoor unit input . 46
5.4 Immunity of active equipment . 47
5.4.1 External immunity to electromagnetic fields . 47
5.4.2 Internal immunity . 47
5.4.3 Immunity of outdoor units to image frequency signals . 51
5.5 Screening effectiveness of passive equipment . 52
5.6 Electrostatic discharge immunity test for active equipment . 52
5.7 Electrical fast transient/burst immunity test for AC power ports . 52
5.8 Performance requirements for telecom signal ports of multimedia network
equipment . 53
5.9 Applicability of EMC performance requirements and methods of measurement
to different types of equipment . 53
Bibliography . 56

Figure 1 – Measurement set-up for radiation measurements in the frequency range
5 MHz to 30 MHz using the "coupling unit" method . 21
Figure 2 – Absorbing clamp method (30 MHz to 1 000 MHz) . 23
Figure 3 – Example of general measurement set-up . 24
Figure 4 – Example of measurement set-up for measurements on the input port of
active equipment . 25
Figure 5 – Measurement set-up for the "substitution" radiation method – First
measurement step . 27
Figure 6 – Measurement set-up for the "substitution" radiation method – Second
measurement step . 28
Figure 7 – Frequency allocation for out-of-band immunity measurement of active

equipment in the frequency range ≤ 1 000 MHz . 31
Figure 8 – Frequency allocation for out-of-band immunity measurement of active
equipment in the frequency range ≥ 950 MHz . 31
Figure 9 – Frequency allocation for in-band immunity measurement of active equipment
in the frequency range ≤ 1 000 MHz . 34
Figure 10 – Frequency allocation for in-band immunity measurement of active
equipment in the frequency range ≥ 950 MHz . 35
Figure 11 – Measurement set-up for internal immunity test . 37
Figure 12 – Levels of wanted and unwanted signals for the internal immunity of FSS
receiving outdoor units . 40
Figure 13 – Levels of wanted and unwanted signals for the internal immunity of BSS
receiving outdoor units . 41
Figure 14 – Levels of unwanted signals for the internal immunity of active equipment in
Band I (47 MHz to 68 MHz) . 48
Figure 15 – Levels of unwanted signals for the internal immunity of active equipment in
Band II (87,5 MHz to 108 MHz) . 49
Figure 16 – Levels of unwanted signals for the internal immunity of active equipment in
Band III (174 MHz to 230 MHz) . 50
Figure 17 – Levels of unwanted signals for the internal immunity of active equipment in

Band IV/V (470 MHz to 862 MHz) . 51

Table 1 – Port structure of different network equipment . 9
Table 2 – Limits of mains terminal disturbance voltage . 45

– 4 – IEC 60728-2:2018 © IEC 2018
Table 3 – Limits of input terminal disturbance voltages for equipment directly connected
to receiving antennas . 46
Table 4 – Limits of input terminal disturbance voltages for equipment directly connected
to satellite outdoor units . 46
Table 5 – Limits of radiated disturbance power . 46
Table 6 – Limit of local oscillator terminal power . 47
Table 7 – Limits of out-of-band immunity . 47
Table 8 – Limits of in-band immunity . 47
Table 9 – Test specification for internal immunity. 48
Table 10 – Limits of immunity to image frequency signals in terms of image
suppression ratio . 51
Table 11 – Limits of screening effectiveness of passive equipment within the nominal
frequency ranges . 52
Table 12 – Test specifications for electrostatic discharge immunity test for active
equipment . 52
Table 13 – Test specifications for electrical fast transient/burst immunity test . 53
Table 14 – Port types and environmental conditions for EMC performance requirements
and methods of measurement . 53
Table 15– Emission parameters . 54
Table 16 – Immunity and screening effectiveness parameters . 55

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CABLE NETWORKS FOR TELEVISION SIGNALS, SOUND SIGNALS
AND INTERACTIVE SERVICES –
Part 2: Electromagnetic compatibility for equipment

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
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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.
This International Standard IEC 60728-2 has been prepared by technical area 5: Cable
networks for television signals, sound signals and interactive services, of IEC technical
committee 100: Audio, video and multimedia systems and equipment.
This third edition cancels and replaces the second edition published in 2010. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Frequency extensions
1) The upper frequency limit of conventional cable network equipment was extended from
862 MHz to 1 000 MHz due to market demands.
2) The first intermediate frequency range (1st IF range) for satellite signal transmission
was extended to cover now frequencies from 950 MHz up to 3 500 MHz.

– 6 – IEC 60728-2:2018 © IEC 2018
3) The methods of measurement and the EMC requirements in the overlapping frequency
range from 950 MHz to 1 000 MHz were allocated in relation to the upper frequency
limit, 1 000 MHz, and the lower frequency limit, 950 MHz, of the relevant equipment
under test.
b) New EMC environment in the 800 MHz band
1) The European Commission has requested CENELEC and ETSI to draft immunity
requirements for equipment, to protect against disturbance from the new wireless
service in the 790 MHz to 862 MHz band.
NOTE The lower frequency has been reconsidered in this document, as new frequency bands are
allocated for wireless services starting from 694 MHz.
2) A CENELEC/ETSI Joint Working Group “Digital Dividend” was formed to describe the
new EMC environment and to advise on appropriate test methods and limits.
3) IEC 60728-2 is the document specifying immunity requirements for active and passive
cable network equipment.
4) The method of measurement and the requirements for in-band immunity were extended
taking into account this new EMC environment due to the allocation of broadband
wireless services in the frequency band 694 MHz to 862 MHz. As a consequence, the
limits of in-band immunity were specified for analogue and additionally for digital signals
in this frequency range.
5) Consequently it is recommended, that, where cable networks and wireless networks
coexist, only the transmission of digitally modulated signals should be used in the
frequency range 694 MHz to 862 MHz.
6) For passive equipment, Class A and Class B specifications were kept in the standard
but a note was added recommending that only Class A equipment should be used in the
planning and implementation of new networks.
c) Indoor antennas
1) The methods of measurement for all kinds of indoor antennas were combined in the
new 4.9.
d) Bibliography
1) A Bibliography has been added at the end of the document referencing, for example,
CEPT Report 30 on “The identification of common and minimal (least restrictive)
technical conditions for 790-862 MHz for the digital dividend in the European Union”.
The text of this International Standard is based on the following documents:
CDV Report on voting
100/2715/CDV 100/2859A/RVC
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://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.
A bilingual version of this publication may be issued at a later date.

INTRODUCTION
Standards and deliverables of the IEC 60728 series deal with cable networks including
equipment and associated methods of measurement for headend reception, processing and
distribution of television and sound signals and for processing, interfacing and transmitting all
kinds of data signals for interactive services using all applicable transmission media. These
signals are typically transmitted in networks by frequency-multiplexing techniques.
This includes, for instance:
• regional and local broadband cable networks,
• extended satellite and terrestrial television distribution systems,
• individual satellite and terrestrial television receiving systems,
and all kinds of equipment, systems and installations used in such cable networks, distribution
and receiving systems.
The extent of this standardization work is from the antennas and/or special interfaces to the
headend or other interface points to the network up to any terminal interface of the customer
premises equipment.
The standardization work will consider coexistence with users of the RF spectrum in wired and
wireless transmission systems.
The standardization of any user terminals (i.e. tuners, receivers, decoders, multimedia
terminals, etc.) as well as of any coaxial, balanced and optical cables and accessories thereof
is excluded.
– 8 – IEC 60728-2:2018 © IEC 2018
CABLE NETWORKS FOR TELEVISION SIGNALS, SOUND SIGNALS
AND INTERACTIVE SERVICES –
Part 2: Electromagnetic compatibility for equipment

1 Scope
This part of IEC 60728:
• applies to the radiation characteristics and immunity to electromagnetic disturbance of
EM-active equipment (active and passive equipment) for the reception, processing and
distribution of television, sound and interactive multimedia signals as dealt with in the
following parts of IEC 60728 series:
– IEC 60728-3, Active wideband equipment for cable networks;
– IEC 60728-4, Passive wideband equipment for coaxial cable networks;
– IEC 60728-5, Headend equipment;
– IEC 60728-6, Optical equipment;
• covers the following frequency ranges:
disturbance voltage injected into the mains 150 kHz to 30 MHz;
radiation from active equipment 5 MHz to 25 GHz;
)
immunity of active equipment 150 kHz to 25 GHz ;
2)
screening effectiveness of passive equipment 5 MHz to 3,5 GHz (25 GHz) ;
• specifies requirements for maximum allowed radiation, minimum immunity and minimum
screening effectiveness;
• describes test methods for conformance testing.
No measurement needs to be performed at frequencies where no requirement is specified.
Due to the fact that cable networks, the former cabled distribution systems for television and
sound signals, are more and more used for interactive services, these networks also
incorporate equipment that carries, besides the cable network equipment ports, also one or
more telecom signal port(s). This equipment is called "multimedia network equipment".
The EMC behaviour of cable network equipment, telecommunication network equipment and
multimedia network equipment can be described by the port structure given in Table 1:
___________
1)
For "inband immunity of active equipment" and "out-of-band immunity of active equipment", no requirements
apply at present for the frequency range 3,5 GHz to 25 GHz. Methods of measurement and limits are
investigated for inclusion in a future amendment or revised edition.
2)
For "screening effectiveness of passive equipment", no requirements apply at present for the frequency range
3,5 GHz to 25 GHz. Methods of measurement and limits are being investigated for inclusion in a future
amendment or revised edition.
Table 1 – Port structure of different network equipment
Port name Cable Telecommunication Multimedia
network equipment network equipment network equipment
Enclosure X X X
Earth X X X
AC/DC power supply X X X
Control (e.g. alarm) X X X
Antenna input port X X
RF network port X X
Telecom signal port X X
Table 1 shows that cable network equipment and telecommunication network equipment have
four common ports and, respectively, two and one individual ports. Multimedia network
equipment carry, besides the common ports, an antenna input port and/or a RF network port as
well as a telecom signal port.
The electromagnetic compatibility requirements for "telecommunication network equipment
only" are standardized in ETSI EN 300 386 (mainly) and in ETSI EN 301 489-4, those for "cable
network equipment only" are given in this document.
Equipment for multimedia networks of the above-mentioned type has to work under the same
EMC conditions as equipment that is falling under the cable network and the
telecommunication network EMC-standards. Due to the fact that this equipment has to work in
close proximity, e.g. in the same operating room, the EMC environmental conditions for all
three types of equipment are the same.
This means that multimedia network equipment has to fulfil the EMC requirements of one of
the above mentioned standards and in addition the EMC requirements, laid down in the other
EMC standard, for the additional port, by which it is connected to the other network.
By this procedure, it is ensured that multimedia network equipment fulfils the EMC conditions
of one of the above-mentioned networks and will neither disturb the respective other system
nor will be disturbed by the respective other system via the connecting port.
Coaxial cables for cable networks do not fall under the scope of this standard; reference is
made to the EN 50117 series. Coaxial cable assemblies for radio and TV receivers (receiver
leads) do not fall under the scope of this standard; reference is made to the IEC 60966 series.
Requirements for the electromagnetic compatibility of receiver leads are laid down in
IEC 60966-2-4, IEC 60966-2-5 and IEC 60966-2-6.
This document also covers indoor receiving antennas for broadcast signals for which the
requirements and the applicable methods of measurement are limited to the emission and the
electrostatic discharge phenomena.
Standardization in the field of "Electromagnetic compatibility" for any broadcast terminals (e.g.
tuners, receivers, decoders, etc.) is covered by CISPR 13 and CISPR 16 and for multimedia
terminals by CISPR 22 and CISPR 24.

– 10 – IEC 60728-2:2018 © IEC 2018
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.
CISPR 13, Sound and television broadcast receivers and associated equipment – Radio
disturbance characteristics – Limits and methods of measurement
CISPR 16-1-1, Specification for radio disturbance and immunity measuring apparatus and
methods – Part 1-1: Radio disturbance and immunity measuring apparatus – Measuring
apparatus
IEC 60728-3:2010, Cable networks for television signals, sound signals and interactive
services – Part 3: Active wideband equipment for cable networks
IEC 61000-3-2, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic
≤ 16 A per phase)
current emissions (equipment input current
IEC 61000-4-2, Electromagnetic compatibility (EMC) – Part 4-2: Testing and measurement
techniques – Electrostatic discharge immunity test
IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement
techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-4, Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement
techniques – Electrical fast transient/burst immunity test
IEC 61000-4-6, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement
techniques – Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-6-1:2016, Electromagnetic compatibility (EMC) – Part 6-1: Generic standards –
Immunity for residential, commercial and light-industrial environments
IEC 61079-1:1992, Methods of measurement on receivers for satellite broadcast transmissions
in the 12 GHz band – Part 1: Radiofrequency measurements on outdoor units
ETSI EN 300 386 V1.5.1, Electromagnetic compatibility and Radio spectrum Matters (ERM);
Telecommunication network equipment; ElectroMagnetic Compatibility (EMC) requirements
IEC 60050-161:1990, International Electrotechnical Vocabulary (IEV), Chapter 161:
Electromagnetic compatibility
IEC 60050-161:1990/AMD1:1997
IEC 60050-161:1990/AMD2:1998
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-161:1990 and
the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/

• ISO Online browsing platform: available at http://www.iso.org/obp
NOTE The most important definitions of IEC 60050-161:1990 are repeated hereafter with the IEC- numbering
given in brackets. In addition, some more specific definitions, used in this document, are listed.
3.1.1
AC power port
point at which a cable for the AC power supply is connected to the equipment
3.1.2
active equipment
equipment (e.g. amplifiers, converters, etc.), performing signal processing by means of
external or internal power supply in a certain frequency range
3.1.3
antenna input port
point at which the equipment under test is directly connected to the receiving antenna(s)
3.1.4
band
nominal operating frequency range of the equipment
3.1.5
burst
sequence of a limited number of distinct pulses or an oscillation of
limited duration
[SOURCE: IEC 60050-161:1990, 161-02-07, modified – Domain placed in angle brackets to
comply with the current directives.]
3.1.6
cable network equipment
equipment from which cable networks for television signals, sound signals and interactive
services are built
Note 1 to entry: Examples of typical cable network equipment can be found in IEC 60728-3, IEC 60728-4,
IEC 60728-5, IEC 60728-6 and IEC 60728-10.
3.1.7
carrier-to-interference ratio
minimum level difference measured at the output of an active equipment between the wanted
signal and
– intermodulation products of the wanted signal and/or unwanted signals generated due to
non-linearities,
– harmonics generated by an unwanted signal,
– unwanted signals that have penetrated into the operating frequency range,
– unwanted signals that have been converted to the frequency range to be protected
(operating frequency range)
3.1.8
control port
point at which a cable for the control signal is connected to the equipment
3.1.9
DC power port
point at which a cable for the DC power supply is connected to the equipment

– 12 – IEC 60728-2:2018 © IEC 2018
3.1.10
DOCSIS
Data-Over-Cable Service Interface Specification
standard defining interface specifications for cable modems and cable modem termination
systems for high-speed data communication over cable networks
Note 1 to entry: DOCSIS contains a European technology option commonly known as EuroDOCSIS that
accommodates the cable spectrum planning practices and channel plans mainly deployed in European cable
networks.
3.1.11
electromagnetic disturbance
electromagnetic phenomenon which may degrade the performance of a device, equipment or
system, or adversely affect living or inert matter
Note 1 to entry: An electromagnetic disturbance may be an electromagnetic noise, an unwanted signal or a
change in the propagation medium itself.
[SOURCE: IEC 60050-161:1990, 161-01-05, modified – "Source: 702-08-04" has been
deleted.]
3.1.12
EMI
electromagnetic interference
degradation of the performance of an equipment, transmission channel or system caused by an
electromagnetic disturbance
Note 1 to entry: In French, the terms "perturbation électromagnétique" and "brouillage électromagnétique"
designate respectively the cause and the effect, and should not be used indiscriminately.
Note 2 to entry: In English, the terms "electromagnetic disturbance" and "electromagnetic interference" designate
respectively the cause and the effect, but they are often used indiscriminately.
[SOURCE: IEC 60050-161:1990, 161-01-06, modified – "Source: 702-08-29" has been
deleted.]
3.1.13
electrostatic discharge
ESD
transfer of electric charge between bodies of different electrostatic potential in proximity or
through direct contact
[SOURCE: IEC 60050-161:1990, 161-01-22]
3.1.14
enclosure port
physical boundary of the equipment through which electromagnetic fields may be transmitted
3.1.15
equipment directly connected to receiving antennas
equipment of which the input terminal can have a connection to a receiving antenna at least via
a cable
Note 1 to entry: That means that the input of the equipment is supplied with the original frequencies as they were
received by the antenna.
3.1.16
extended satellite television distribution network or system
distribution network or system designed to provide sound and television signals received by
satellite receiving antenna to households in one or more buildings

Note 1 to entry: This kind of network or system can be combined with terrestrial antennas for the additional
reception of TV and/or radio signals via terrestrial networks.
Note 2 to entry: This kind of network or system can also carry control signals for satellite switched systems or
other signals for special transmission systems (e.g. MoCA or WiFi) in the return path direction.
3.1.17
extended terrestrial television distribution network or system
distribution network or system designed to provide sound and television signals received by
terrestrial receiving antennas to households in one or more buildings
Note 1 to entry: This kind of network or system can be combined with a satellite antenna for the additional
reception of TV and/or radio signals via satellite networks.
Note 2 to entry: This kind of network or system can also carry other signals for special transmission systems (e.g.
MoCA or WiFi) in the return path direction.
3.1.18
external immunity
ability of a device, equipment or system to perform without degradation in the presence of
electromagnetic disturbances entering other than via its normal input terminals or antennas
[SOURCE: IEC 60050-161:1990, 161-03-07]
3.1.19
immunity
ability of a device, equipment or system to perform without degradation in
the presence of an electromagnetic disturbance
[SOURCE: IEC 60050-161:1990, 161-01-20]
3.1.20
immunity level
maximum level of a given electromagnetic disturbance incident on a particular device,
equipment or system for which it remains capable of operating at a required degree of
performance
[SOURCE: IEC 60050-161:1990, 161-03-14]
3.1.21
immunity limit
specified minimum immunity level
[SOURCE: IEC 60050-161:1990, 161-03-15]
3.1.22
in-band immunity
immunity against disturbance at any frequency of the wanted signals carried at the interfaces
and used internally within the equipment under test (e.g. input/output frequencies, IF, video
band)
3.1.23
individual satellite television receiving system
system designed to provide sound and television signals received from satellite(s) to an
individual household
Note 1 to entry: This kind of system can also carry control signals for satellite switched systems or other signals
for special transmission systems (e.g. MoCA or WiFi) in the return path direction.

– 14 – IEC 60728-2:2018 © IEC 2018
3.1.24
individual terrestrial television receiving system
system designed to provide sound and television signals received via terrestrial broadcast
networks to an individual household
Note 1 to entry: This kind of system can also carry other signals for special transmission systems (e.g. MoCA or
WiFi) in the return path direction.
3.1.25
indoor signal lines
lines that do not leave the building and that are protected by other equipment against outdoor
interference (e.g. connections from switching to transmission equipment in the same building)
3.1.26
internal immunity
ability of a device, equipment or system to perform without degradation in the presence of
electromagnetic disturbances appearing at its normal input terminals or antennas
[SOURCE: IEC 60050-161:1990, 161-03-06]
3.1.27
local broadband cable network
network designed to provide sound and television signals as well as signals for interactive
services to a local area (e.g. one town or one village)
3.1.28
mains-powered equipment
active equipment directly connected to the mains via a separate mains line and fed with the
mains voltage
3.1.29
multimedia network equipment
equipment containing broadcast and telecommunication functions
3.1.30
operating frequency range
passband for the wanted signals for which the equipment has been designed
3.1.31
outdoor signal lines
lines leaving the building and being subjected to outdoor interference
3.1.32
out-of-band immunity
immunity against disturbance from signals outside the frequency band(s) of the wanted signal
carried at the interfaces and used internally within the equipment under test (e.g. input/output
frequencies, IF, video band)
3.1.33
passive equipment
equipment (e.g. splitters, tap-offs, system outlets) not requiring a power supply in order to
operate and/or not carrying out signal processing in a certain frequency range
3.1.34
port
particular interface of the specific equipment with the external electromagnetic environment:

Enclosure port
AC/DC power supply port ––––––
EQUIPMENT –––––––– RF network port
Antenna input port ––––––––
UNDER –––––––– Telecom signal port
Earth port ––––––––
TEST –––––––– Control port
3.1.35
radiation

1. phenomenon by which energy in the form of electromagnetic waves emanates from a source
into space
2. energy transferred through space in the form of electromagnetic waves
Note 1 to entry: By extension, the term "electromagnetic radiation" sometimes also covers induction phenomena.
[SOURCE: IEC 60050-161:1990, 161-01-10, modified – Domain placed in angle brackets to
comply with the current directives.]
3.1.36
regional broadband cable network
network designed to provide sound and television signals as well as signals for interactive
services to a regional area covering several towns and/or villages
3.1.37
RF network port
point at which a coaxial cable for the wanted RF signal is connected to the equipment but
excluding direct connection to the antenna
3.1.38
screening effectiveness
ability of equipment or a system to attenuate the influence of electromagnetic fields from
outside the equipment or system or to suppress the radiation of electromagnetic fields from
inside the equipment or system
3.1.39
signal port
point at which a cable for the wanted signal is connected to the equipment
3.1.40
telecom signal port
point at which a cable for the wanted telecom signal is connected to the equipment
3.1.41
transient
pertaining to or designating a phenomenon or a quantity which varies between two consecutive
steady states during a time interval short compared with the time-scale of interest
Note 1 to entry: Adjective and noun.
[SOURCE: IEC 60050-161:1990, 161-02-01, modified – "Adjective and noun" moved to a note
to entry to comply with the current directives.]

– 16 – IEC 60728-2:2018 © IEC 2018
3.1.42
unwanted signal
signal inside and outside of the operating frequency range that is not considered as wanted
signal
Note 1 to entry: When measuring immunity (to unwanted signals), the unwanted signal shall be simulated using
two sine-wave test signals.
3.1.43
wanted signal
signal simulated during measurements using a sine-wave test signal having the frequency
within the operating frequency range and the appropriate level
3.1.44
well-matched
matching the condition when the return loss of the equipment complies with the requirements
of IEC 60728-3:2010, Table 1
3.1.45
well-screened
furnished with
...