EN 50083-8:2013

Cable networks for television signals, sound signals and interactive services - Part 8: Electromagnetic compatibility for networks

1.1 General Standards of the EN 50083 and EN 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 signal source inputs to the headend or other interface points to the network up to the terminal input 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. 1.2 Specific scope of EN 50083 8 This European Standard applies to the radiation characteristics and immunity to electromagnetic disturbance of cable networks for television signals, sound signals and interactive services and covers the frequency range 0,15 MHz to 3,5 GHz. It should be noted that measurements below 30 MHz are not generally considered useful in the context of cable networks and are difficult to perform in practice. Application of the harmonized standard EN 50529-2 provides presumption of conformance to the EMC Directive. Therefore, to fulfil the requirements of EN 50529-2, it is necessary to use cable network equipment that satisfies the requirements of EN 50083-2 regarding limits of radiation and of immunity to external fields. This European Standard specifies methods of measurement and EMC performance requirements under operating conditions (in situ) to ensure the ongoing EMC integrity of cable networks. Cable networks beyond the system outlets (e.g. the receiver lead, in simplest terms) which begin at the system outlet and end at the input to the subscriber's terminal equipment are not covered by the standard EN 50083 8. Requirements for the electromagnetic compatibility of receiver leads are laid down in EN 60966 2 4, EN 60966 2 5 and EN 60966 2 6. Cable networks and a wide range of radio services have to coexist. These include for example the emergency services, safety of life, broadcasting, aeronautical, radio navigation services and also land mobile, amateur and cellular radio services. Frequency ranges of typical safety of life services are listed in Annex B. Additional protection for certain services may be required by national regulations.

Kabelnetze für Fernsehsignale, Tonsignale und interaktive Dienste - Teil 8: Elektromagnetische Verträglichkeit von Kabelnetzen

Réseaux de distribution par câbles pour signaux de télévision, signaux de radiodiffusion sonore et services interactifs - Partie 8: Compatibilité électromagnétique des réseaux

1.1 Généralités Les normes des EN 50083 et EN 60728 traitent des réseaux de distribution par câbles, y compris les matériels et les méthodes de mesure associées pour la réception en tête de réseau, le traitement et la distribution des signaux de télévision et de radiodiffusion sonore et pour le traitement, l'interfaçage et l'émission de toutes sortes de signaux pour les services interactifs en utilisant tout support de transmission approprié. Ces signaux sont typiquement émis dans les réseaux par des techniques de multiplexage de fréquences. Cela inclut, par exemple  les réseaux régionaux et locaux de distribution par câbles à large bande,  les systèmes étendus de distribution de télévision satellitaire et terrestre,  les systèmes individuels de réception de télévision satellitaire et terrestre, et toutes sortes de matériels, de systèmes et d’installations utilisés dans de tels réseaux de distribution par câbles, systèmes de distribution et de réception. Ces normes couvrent la partie s'étendant des antennes et/ou des entrées de la tête de réseau pour source spécifique de signal ou d'autres points d'interface d'accès au réseau, jusqu'à l'entrée de terminal de l'équipement des locaux client Ces normes prendront en considération la coexistence avec des utilisateurs du spectre RF dans des systèmes d'émission tant filaires que sans fils. Sont exclus de ces normes tous les terminaux d'usager (à savoir les syntoniseurs, les récepteurs, les décodeurs, les terminaux multimédias, etc.) ainsi que tous les câbles coaxiaux, symétriques ou à fibres optiques et leurs accessoires. 1.2 Domaine d'application spécifique de la EN 50083 8 La présente Norme européenne s’applique aux caractéristiques de rayonnement et à l’immunité aux perturbations électromagnétiques des réseaux de distribution par câbles pour les signaux de télévision, les signaux de radiodiffusion sonore et les services interactifs et couvre la bande de fréquences de 0,15 MHz à 3,5 GHz. Il convient de noter que les mesures en dessous de 30 MHz ne sont généralement pas considérées comme étant utiles dans le contexte des réseaux de distribution par câbles et sont difficiles à réaliser dans la pratique. L'application de la norme harmonisée EN 50529-2 fournit la présomption de conformité à la Directive CEM. Par conséquent, pour satisfaire aux exigences de la EN 50529-2, il est nécessaire d'utiliser un matériel de réseau de distribution par câbles qui satisfasse aux exigences de la EN 50083-2 relatives aux limites de rayonnement et d'immunité aux champs extérieurs. La présente Norme européenne spécifie les méthodes de mesure et les exigences de compatibilité électromagnétique (CEM) dans des conditions opératoires (in situ) pour assurer l'intégrité CEM en cours des réseaux de distribution par câbles. Les réseaux de distribution par câbles en aval des prises d’usager (par exemple, le cordon de raccordement, en termes plus simples) qui commencent à la prise d’usager et finissent à l'entrée de l'équipement terminal d’abonné ne sont pas couverts par la norme EN 50083-8. Les exigences relatives à la compatibilité électromagnétique des cordons de raccordement sont données dans les EN 60966-2-4, EN 60966-2-5 et EN 60966-2-6. Les réseaux de distribution par câbles et une large gamme de services radioélectriques doivent coexister. Ces services comprennent, par exemple, les services de secours, les services liés à la sécurité, les services de radiodiffusion, les services aéronautiques, les services de radionavigation et également les services mobiles terrestres, les services de radioamateurs et les services de radiocommunications cellulaires. Les gammes de fréquences des services de secours typiques sont énumérées en ‎Annexe B. Des règlements nationaux peuvent exiger une protection complémentaire pour certains services.

Kabelska omrežja za televizijske in zvokovne signale ter interaktivne elemente - 8. del: Elektromagnetna združljivost omrežij

General Information

• Status: Published
• Publication Date: 19-Dec-2013
• ICS: 33.060.40 - Cabled distribution systems
• ICS: 33.100.01 - Electromagnetic compatibility in general
• Technical Committee: CLC/TC 209 - Cable networks for television signals, sound signals and interactive services
• Drafting Committee: IEC/TC 100 - IEC_TC_100
• Current Stage: 6060 - Document made available - Publishing
• Due Date: 20-Dec-2013
• Completion Date: 20-Dec-2013
• Ref Project: SIST EN 50083-8:2014 - Cable networks for television signals, sound signals and interactive services -- Part 8: Electromagnetic compatibility for networks

Relations

• Replaces: EN 50083-8:2002/A11:2008 - Cable networks for television signals, sound signals and interactive services - Part 8: Electromagnetic compatibility for networks
• Effective Date: 29-Jun-2010
• Replaces: EN 50083-8:2002 - Cable networks for television signals, sound signals and interactive services - Part 8: Electromagnetic compatibility for networks
• Effective Date: 29-Jun-2010

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 50083-8:2014
01-april-2014
1DGRPHãþD
SIST EN 50083-8:2003
SIST EN 50083-8:2003/A11:2009
Kabelska omrežja za televizijske in zvokovne signale ter interaktivne elemente - 8.
del: Elektromagnetna združljivost omrežij
Cable networks for television signals, sound signals and interactive services -- Part 8:
Electromagnetic compatibility for networks
Kabelnetze für Fernsehsignale, Tonsignale und interaktive Dienste -- Teil 8:
Elektromagnetische Verträglichkeit von Kabelnetzen
Réseaux de distribution par câbles pour signaux de télévision, signaux de radiodiffusion
sonore et services interactifs -- Partie 8: Compatibilité électromagnétique des réseaux
Ta slovenski standard je istoveten z: EN 50083-8:2013
ICS:
33.060.40 Kabelski razdelilni sistemi Cabled distribution systems
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
SIST EN 50083-8:2014 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50083-8:2014

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SIST EN 50083-8:2014

EUROPEAN STANDARD
EN 50083-8

NORME EUROPÉENNE
December 2013
EUROPÄISCHE NORM

ICS 33.060.40; 33.100.01 Supersedes EN 50083-8:2002 + A11:2008


English version


Cable networks for television signals, sound signals and interactive
services -
Part 8: Electromagnetic compatibility for networks



Réseaux de distribution par câbles pour Kabelnetze für Fernsehsignale,
signaux de télévision, signaux de Tonsignale und interaktive Dienste -
radiodiffusion sonore et services Teil 8: Elektromagnetische Verträglichkeit
interactifs - von Kabelnetzen
Partie 8: Compatibilité électromagnétique
des réseaux






This European Standard was approved by CENELEC on 2013-11-11. 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.


CENELEC
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


© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50083-8:2013 E

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SIST EN 50083-8:2014
EN 50083-8:2013 – 2 –
Contents Page
Foreword . 4
1 Scope . 5
1.1 General . 5
1.2 Specific scope of EN 50083-8 . 5
2 Normative references . 6
3 Terms, definitions, symbols and abbreviations . 6
3.1 Terms and definitions . 6
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Methods of measurement . 10
4.1 Basic principles . 10
4.2 Radiation from cable networks . 10
4.2.1 General . 10
4.2.2 Field strength method . 11
4.2.3 Subcarrier measurement procedure . 12
4.2.4 GPS based leakage detection system . 13
4.3 Immunity of cable networks . 13
4.3.1 General . 13
4.3.2 Measurement procedure for interference caused by high-power local transmitter . 13
5 Performance requirements . 14
5.1 General conditions . 14
5.2 Radiation from cable networks and other sources . 14
5.2.1 General . 14
5.2.2 Measurement of the total radiation . 14
5.2.3 Measurement of narrowband radiation . 15
5.3 Immunity of cable networks . 16
Annex A (informative) A-deviations . 18
A.1 United Kingdom . 18
A.1.1 Regulation . 18
A.1.2 Principle . 18
A.1.3 Equipment . 18
A.1.4 Measurement frequencies . 18
A.1.5 Procedure . 19
A.1.6 Expression of results . 19
A.1.7 Permitted limits . 20
A.1.8 Interpretation . 20
A.1.9 Bibliography of A.1 . 22
A.2 United Kingdom . 22
A.2.1 Regulation . 22
A.2.2 Principle . 22
A.2.3 Equipment . 22
A.2.4 Measurement frequencies . 22
A.2.5 Procedure . 23
A.2.6 Permitted limits . 23
A.2.7 Interpretation . 24
A.2.8 Bibliography of A.2 . 24
A.3 Finland . 25
A.4 Germany . 25

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Annex B (informative) Frequency ranges of typical safety of life services . 28
Annex C (informative) Interdependence between the maximum allowable field strength and the
minimum signal level at system outlet. 29
Annex D (informative) Measurements in other distances than the standard distance of 3 m . 31
D.1 Measurement at a reduced distance below 3 m . 31
D.2 Measurement at measurement distances above 3 m . 31
Annex E (informative) GPS based leakage detection system for cable networks . 32
E.1 General . 32
E.2 Automated data collection by driving through the HFC network . 32
E.3 Tagging of the signal . 32
E.4 Post processing the collected data and visualisation of leakages . 32
E.5 On site location of the leak . 32
Bibliography . 33

Figure A.1 – Arrangement of test equipment for the measurement of radiation from complete
systems . 20

Table 1 – Limits of total radiation . 15
Table 2 – Narrowband radiation limits . 15
Table 3 – Maximum expected field strength . 16
Table 4 – Required carrier-to-interference ratio . 17
Table A.1 – Radiation from complete systems: maximum permitted field strengths . 21
Table A.2 – Distance correction factor . 22
Table A.3 – Radiation from complete systems: maximum permitted field strengths . 24
Table A.4 – Distance correction factor . 24
Table A.5 – Protection of particular frequency ranges according to § 3 of the Order . 25
Table A.6 – Field strength limit values at 3 m distance from line-bound telecommunications
facilities and networks . 27
Table B.1 – Frequency ranges of typical safety of life services . 28

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SIST EN 50083-8:2014
EN 50083-8:2013 – 4 –
Foreword
This document (EN 50083-8:2013) has been prepared by CLC/TC 209 "Cable networks for television signals,
sound signals and interactive services".
The following dates are fixed:
• latest date by which this document has (dop) 2014-11-08
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2016-11-08
• latest date by which the national
standards conflicting with this
document have to be withdrawn

This document supersedes EN 50083-8:2002 + A11:2008.
EN 50083-8:2013 includes the following significant technical changes with respect to EN 50083-8:2002 and
EN 50083-8/A11:2008.
 EN 50083-8 with its methods of measurement and EMC performance requirements is explicitly dedicated
to “under operating conditions (in situ)” to ensure the ongoing EMC integrity of cable networks.
 The harmonized standard EN 50529-2 is dedicated for the provision of presumption of conformance to
the EMC Directive.
st
 The first intermediate frequency range (1 IF range) for satellite signal transmission was extended to
cover now frequencies from 950 MHz up to 3 500 MHz.
 The method of measurement and the requirements for in-band immunity were extended taking into
account the new EMC environment due to the allocation of broadband wireless services in the frequency
band 790 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.
 The substitution method of measurement (power method) was deleted.
 EMC measurements below 30 MHz were deleted
 New Annex D “Measurement in other distances than the standard distance of 3 m”
 New Annex E “GPS based leakage detection system for cable networks”
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.

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1 Scope
1.1 General
Standards of the EN 50083 and EN 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 signal source inputs to the
headend or other interface points to the network up to the terminal input 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.
1.2 Specific scope of EN 50083-8
This European Standard applies to the radiation characteristics and immunity to electromagnetic disturbance
of cable networks for television signals, sound signals and interactive services and covers the frequency
range 0,15 MHz to 3,5 GHz. It should be noted that measurements below 30 MHz are not generally
considered useful in the context of cable networks and are difficult to perform in practice.
Application of the harmonized standard EN 50529-2 provides presumption of conformance to the EMC
Directive. Therefore, to fulfil the requirements of EN 50529-2, it is necessary to use cable network equipment
that satisfies the requirements of EN 50083-2 regarding limits of radiation and of immunity to external fields.
This European Standard specifies methods of measurement and EMC performance requirements under
operating conditions (in situ) to ensure the ongoing EMC integrity of cable networks.
Cable networks beyond the system outlets (e.g. the receiver lead, in simplest terms) which begin at the
system outlet and end at the input to the subscriber's terminal equipment are not covered by the standard
EN 50083-8. Requirements for the electromagnetic compatibility of receiver leads are laid down in
EN 60966-2-4, EN 60966-2-5 and EN 60966-2-6.
Cable networks and a wide range of radio services have to coexist. These include for example the emergency
services, safety of life, broadcasting, aeronautical, radio navigation services and also land mobile, amateur
and cellular radio services. Frequency ranges of typical safety of life services are listed in Annex B. Additional
protection for certain services may be required by national regulations.

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SIST EN 50083-8:2014
EN 50083-8:2013 – 6 –
2 Normative references
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.
EN 50083 (all parts), Cable networks for television signals, sound signals and interactive services
EN 50083-2, Cable networks for television signals, sound signals and interactive services – Part 2:
Electromagnetic compatibility for equipment
EN 50117 (all parts), Coaxial cables
EN 50529-2, EMC Network Standard – Part 2: Wire-line telecommunications networks using coaxial cables
EN 55016-1-1, Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-1:
Radio disturbance and immunity measuring apparatus – Measuring apparatus (CISPR 16-1-1)
EN 55016-1-4, Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-4:
Radio disturbance and immunity measuring apparatus – Antennas and test sites for radiated disturbance
measurements (CISPR 16-1-4)
EN 60728 (all parts), Cable networks for television signals, sound signals and interactive services (IEC 60728,
all parts)
EN 60728-1, Cable networks for television signals, sound signals and interactive services – Part 1: System
performance of forward paths (IEC 60728-1)
IEC 60050-161, International Electrotechnical Vocabulary – Chapter 161: Electromagnetic compatibility
3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-161 and the following apply.
NOTE The most important definitions of IEC 60050-161 are repeated hereafter with the IEV-numbering given in
brackets. In addition, some more specific definitions, used in this European Standard, are listed.
3.1.1
building penetration loss
ability of buildings, in which networks for distribution of television and sound are located, to attenuate the
influence of electromagnetic fields from outside the buildings or to suppress the radiation of electromagnetic
fields from inside the buildings
3.1.2
carrier-to-interference ratio
minimum level difference measured at the output of an active equipment or at any other interface within the
network 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)

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3.1.3
degradation (of performance)
undesired departure in the operational performance of any device, equipment or system from its intended
performance
Note 1 to entry: The term "degradation" can apply to temporary or permanent failure.
[SOURCE: IEV 161-01-19]
3.1.4
disturbance level
level of an electromagnetic disturbance at a given location, which results from all contributing (interference)
sources
3.1.5
electromagnetic disturbance
any 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: IEV 161-01-05]
3.1.6
electromagnetic interference
EMI
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: IEV 161-01-06]
3.1.7
(electromagnetic) 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: IEV 161-01-10]
3.1.8
external immunity
ability of a device, equipment or network to perform without degradation in the presence of electromagnetic
disturbances entering other than via its normal input terminals or antenna
[SOURCE: IEV 161-03-07]

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EN 50083-8:2013 – 8 –
3.1.9
headend
equipment that is connected between receiving antennas or other signal sources and the remainder of the
cable network, to process the signals to be distributed
Note 1 to entry: The headend can, for example, comprise antenna amplifiers, frequency converters, combiners,
separators and generators.
3.1.10
ignition noise
unwanted emission of electromagnetic energy, predominantly impulsive in content, arising from the ignition
system within a vehicle or device
3.1.11
immunity (to a disturbance)
ability of a device, equipment or system to perform without degradation in the presence of an electromagnetic
disturbance
[SOURCE: IEV 161-01-20]
3.1.12
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: IEV 161-03-06]
3.1.13
operating frequency range
passband for the wanted signals for which the equipment has been designed
3.1.14
receiver lead
lead that connects the system outlet to the subscriber's equipment
3.1.15
screening effectiveness
ability of an equipment or 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
3.1.16
spur network
cable network normally laid out inside buildings to which splitters, subscriber's taps or looped system outlets
are connected
3.1.17
subscriber's feeder
feeder connecting a subscriber's tap to a system outlet or, where the latter is not used, directly to the
subscriber's equipment
Note 1 to entry: A subscriber's feeder can include filters and balun transformer.
3.1.18
system outlet
device for interconnecting a subscriber's feeder and a receiver lead

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3.1.19
well-screened test set-up
test set-up whose radiation level, when terminated with a matched load, is at least 20 dB below the expected
radiation level of the equipment under test, the test set-up and the equipment being supplied with the same
input signal level
3.2 Symbols
For the purposes of this document, the following graphical symbols apply.
NOTE These graphical symbols are used in the figures of this European Standard. These symbols are either listed in
IEC 60617 or based on symbols defined in IEC 60617.
Graphical symbol Reference number Graphical symbol Reference number
and title and title
IEC 60617 (S01249) +
IEC 60617 (S01239)
IEC 60617 (S00081)
Pre-amplifier
Tuneable bandpass filter




Level meter


3.3 Abbreviations
For the purposes of this document, the following abbreviations apply.
AM Amplitude Modulation
DSC Distress, Safety and Calling
DVB Digital Video Broadcasting
EMC Electromagnetic Compatibility
EMI Electromagnetic Interference
EPIRB Emergency Position Indicating Radiobeacons
FM Frequency Modulation
GPS Global Positioning System
HFC Hybrid Fibre Coax
IEV International Electrotechnical Vocabulary
ILS Instrument Landing System

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SIST EN 50083-8:2014
EN 50083-8:2013 – 10 –
LAS Leakage Analysis Software
MIL Military (use)
NAV (Aeronautical) Navigation (Radio)
QAM Quadrature Amplitude Modulation
QPSK Quadrature Phase Shift Keying
RF Radio Frequency
SAT-IF Satellite Intermediate Frequency
TV Television
VOR VHF Omnidirectional Range
VSB Vestigial Side Band
NOTE Only the abbreviations used in the English version of this part of EN 50083 are mentioned in this subclause.
The German and the French versions of this part can use other abbreviations. Refer to 3.3 of each language versions for
details.
4 Methods of measurement
4.1 Basic principles
These methods of measurement describe the procedures for the testing of cable networks. The purpose of the
measurements is to determine:
 the level of radiation generated by cable networks and
 the immunity of cable networks to external field strengths (e.g. those radiated by other
radiocommunication services and RF applications).
The measurements cover the essential parameters and environmental conditions in order to assess cases of
electromagnetic incompatibility between cable networks and other electrical or electronic equipment,
networks, installations or other cabled networks with respect to the intended operation of such cable networks.
During the test the cable network shall operate within its normal operating conditions e.g. with regard to the
signal level and signal quality at the system outlets.
NOTE Methods of measurement for radiated digitally modulated signals are under consideration. For digital egress
measurements, where the level of emission is such that the signal is indeterminate from the general and other background
noise, an analogue substitution method is employed, by using an analogue video carrier where possible.
4.2 Radiation from cable networks
4.2.1 General
The methods describe
...