EN 60728-101:2017

Cable networks for television signals, sound signals and interactive services - Part 101: System performance of forward paths loaded with digital channels only

IEC 60728-101:2016 is applicable to any cable network (including individual receiving systems) distributing only digital channels having in the forward path a coaxial cable output and primarily intended for television and sound signals operating between about 30 MHz and 3 000 MHz. This standard specifies the basic methods of measurement of the operational characteristics of a cable network having coaxial cable outputs in order to assess the performance of these systems and their performance limits.

Kabelnetze für Fernsehsignale, Tonsignale und interaktive Dienste - Teil 101: Systemanforderungen in Verteilrichtung bei kompletter digitaler Kanallast

Réseaux de distribution par câbles pour signaux de télévision, signaux de radiodiffusion sonore et services interactifs - Partie 101: Performances des systèmes de voie directe soumis à une charge de porteuses exclusivement numériques

L'IEC 60728-101:2016 s'applique aux réseaux de distribution par câbles (y compris les systèmes individuels de réception) distribuant uniquement des canaux numériques, comportant dans le sens descendant une sortie à câble coaxial et essentiellement destinés aux signaux de télévision et aux signaux de radiodiffusion sonore, fonctionnant approximativement entre 30 MHz et 3 000 MHz. La présente norme spécifie les méthodes fondamentales pour la mesure des caractéristiques opérationnelles d'un réseau de distribution par câbles comportant des sorties à câbles coaxiaux dans le but d'évaluer la performance de ces systèmes ainsi que leurs limites de performances.

Kabelska omrežja za televizijske in zvokovne signale ter interaktivne storitve - 101. del: Lastnosti sistema za naprejšnje poti z obremenitvami popolnoma digitaliziranih kanalov (TA/5) (IEC 60728-101:2016)

Ta del standarda IEC 60728 se uporablja za katero koli kabelsko omrežje (vključno s posamičnimi sistemi za sprejem) za porazdelitev izključno digitalnih kanalov, ki v naprejšnji poti vključujejo koaksialni kabelski izhod ter so namenjeni za prenos televizijskih in zvokovnih signalov s frekvenco med približno 30 MHz in 3000 MHz.
Ta standard določa osnovne metode merjenja obratovalnih značilnosti kabelskega omrežja s koaksialnimi kabelskimi izhodi, da bi se ocenile lastnosti teh sistemov ter omejitve njihovega delovanja.

General Information

• Status: Published
• Publication Date: 18-May-2017
• ICS: 33.040.20 - Transmission systems
• ICS: 33.160.01 - Audio, video and audiovisual systems 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
• Start Date: 19-May-2017
• Completion Date: 19-May-2017
• Ref Project: SIST EN 60728-101:2018 - Cable networks for television signals, sound signals and interactive services - Part 101: System performance of forward paths with all-digital channels load (TA/5) (IEC 60728-101:2016)

Relations

• Corrected By: EN 60728-101:2017/AC:2017-07 - Cable networks for television signals, sound signals and interactive services - Part 101: System performance of forward paths loaded with digital channels only
• Effective Date: 06-Jun-2017

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2018
Kabelska omrežja za televizijske in zvokovne signale ter interaktivne storitve - 101.
del: Lastnosti sistema za naprejšnje poti z obremenitvami popolnoma
digitaliziranih kanalov (TA/5) (IEC 60728-101:2016)
Cable networks for television signals, sound signals and interactive services - Part 101:
System performance of forward paths with all-digital channels load (TA/5) (IEC 60728-
101:2016)
.DEHOQHW]HIU)HUQVHKVLJQDOH7RQVLJQDOHXQGLQWHUDNWLYH'LHQVWH7HLO
6\VWHPDQIRUGHUXQJHQLQ9HUWHLOULFKWXQJEHLNRPSOHWWHUGLJLWDOHU.DQDOODVW
,(&
Réseaux de distribution par câbles pour signaux de télévision, signaux de radiodiffusion
sonore et services interactifs - Partie 101: Performances des systèmes de voie directe
soumis à une charge de porteuses exclusivement numériques (IEC 60728-101:2016)
Ta slovenski standard je istoveten z: EN 60728-101:2017
ICS:
33.060.40 Kabelski razdelilni sistemi Cabled distribution systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60728-101

NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2017
ICS 33.040.20; 33.160.01
English Version
Cable networks for television signals, sound signals and
interactive services - Part 101: System performance of forward
paths loaded with digital channels only
(IEC 60728-101:2016)
Réseaux de distribution par câbles pour signaux de Kabelnetze für Fernsehsignale, Tonsignale und interaktive
télévision, signaux de radiodiffusion sonore et services Dienste - Teil 101: Systemanforderungen in Verteilrichtung
interactifs - Partie 101: Performances des systèmes de voie bei kompletter digitaler Kanallast
directe soumis à une charge de porteuses exclusivement (IEC 60728-101:2016)
numériques
(IEC 60728-101:2016)
This European Standard was approved by CENELEC on 2016-06-01. 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, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

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
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60728-101:2017 E
European foreword
The text of document 100/2641/FDIS, future edition 1 of IEC 60728-101, prepared by Technical Area
5 “Cable networks for television signals, sound signals and interactive services” of IEC/TC 100 “Audio,
video and multimedia systems and equipment" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN 60728-101:2017.

The following dates are fixed:
• latest date by which the document has to be (dop) 2017-11-19
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2020-05-19
• latest date by which the national
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 60728-101:2016 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:

ISO/IEC 13818 (series) NOTE Harmonized as EN ISO/IEC 13818 (series).

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-705 -  International Electrotechnical Vocabulary - -
(IEV) -- Chapter 705: Radio wave
propagation
IEC 60050-712 -  International Electrotechnical Vocabulary - -
(IEV) -- Chapter 712: Antennas
IEC 60050-725 -  International Electrotechnical Vocabulary - -
(IEV) -- Chapter 725: Space
radiocommunications
IEC 60728-1 -  Cable networks for television signals, EN 60728-1 -
sound signals and interactive services --
Part 1: System performance of forward
paths
IEC 60728-1-1 -  Cable networks for television signals sound EN 60728-1-1 -
signals and interactive services -- Part 1-1:
RF cabling for two way home networks
IEC 60728-1-2 -  Cable networks for television signals, EN 60728-1-2 -
sound signals and interactive services --
Part 1-2: Performance requirements or
signals delivered at the system outlet in
operation
IEC 60728-2 -  Cable networks for television signals, - -
sound signals and interactive services -
Part 2: Electromagnetic compatibility for
equipment
IEC 60728-3 -  Cable networks for television signals, EN 60728-3 -
sound signals and interactive services --
Part 3: Active wideband equipment for
cable networks
IEC 60728-3-1 -  Cable networks for television signals, EN 60728-3-1 -
sound signals and interactive services --
Part 3-1: Methods of measurement of non-
linearity for full digital channel load with
DVB-C signals
IEC 60728-5 -  Cable networks for television signals, EN 60728-5 -
sound signals and interactive services -
Part 5: Headend equipment
IEC 60728-10 -  Cable networks for television signals, EN 60728-10 -
sound signals and interactive services --
Part 10: System performance of return
paths
IEC 60728-11 -  Cable networks for television signals, EN 60728-11 -
sound signals and interactive services --
Part 11: Safety
IEC 60728-12 -  Cabled distribution systems for television - -
and sound signals -- Part 12:
Electromagnetic compatibility of systems
IEC 60966-2-4 -  CABLE ASSEMBLIES - Part 2-4: Detail - -
specification for cable assemblies for radio
and TV receivers - Frequency range 0 MHz
to 3 000 MHz, IEC 61169-2 connectors
IEC 60966-2-5 -  Radio frequency and coaxial cable EN 60966-2-5 -
assemblies -- Part 2-5: Detail specification
for cable assemblies for radio and TV
receivers - Frequency range 0 MHz to 1
000 MHz, IEC 61169-2 connectors
IEC 60966-2-6 -  Radio frequency and coaxial cable EN 60966-2-6 -
assemblies -- Part 2-6: Detail specification
for cable assemblies for radio and TV
receivers - Frequency range 0 MHz to 3
000 MHz, IEC 61169-24 connectors
ISO/IEC 13818-1 -  Information technology - Generic coding of - -
moving pictures and associated audio
information - Part 1: Systems
ISO/IEC 13818-2 -  Information technology - Generic coding of - -
moving pictures and associated audio
information - Part 2: Video
ISO/IEC 13818-3 -  Information technology - Generic coding of - -
moving pictures and associated audio
information -- Part 3: Audio
ISO/IEC 13818-4 -  Information technology - Generic coding of - -
moving pictures and associated audio
information - Part 4: Conformance testing
ISO/IEC 14496-1 -  Information technology -- Coding of audio- - -
visual objects -- Part 1: Systems
ISO/IEC 14496-2 -  Information technology - Coding of audio- - -
visual objects - Part 2: Visual
ISO/IEC 14496-3 -  Information technology - Coding of audio- - -
visual objects - Part 3: Audio
ETSI EN 300 421 -  Digital Video Broadcasting (DVB): Framing - -
structure, channel coding and modulation
for 11/12 GHz satellite services
ETSI EN 300 429 -  Digital Video Broadcasting (DVB): Framing - -
structure, channel coding and modulation
for cable systems
ETSI EN 300 468 -  Digital Video Broadcasting (DVB): - -
Specification for Service Information (SI) in
DVB systems
ETSI EN 300 473 -  Digital Video Broadcasting (DVB): Satellite - -
Master Antenna Television (SMATV)
distribution systems
ETSI EN 300 744 -  Digital Video Broadcasting (DVB): Framing - -
structure, channel coding and modulation
for digital terrestrial television
ETSI EN 300 748 -  Digital Video Broadcasting (DVB): - -
Multipoint Video Distribution Systems
(MVDS) at 10 GHz and above
ETSI EN 300 749 -  Digital Video Broadcasting (DVB): - -
Microwave Multipoint Distribution Systems
(MMDS) below 10 GHz
ETSI EN 302 307 -  Digital Video Broadcasting (DVB);Second - -
generation framing structure, channel
coding and modulation systems for
Broadcasting, Interactive Services, News
Gathering and other broadband satellite
applications (DVB-S2)
ETSI EN 302 755 -  Digital Video Broadcasting (DVB); Frame - -
structure channel coding and modulation
for a second generation digital terrestrial
television broadcasting system (DVB-T2)
ETSI EN 302 769 -  Digital Video Broadcasting (DVB) - Frame - -
structure channel coding and modulation
for a second generation digital
transmission system for cable systems
(DVB-C2)
ETSI ETS 300 784 -  Satellite Earth Stations and Systems - -
(SES);Television Receive-Only (TVRO)
satellite earth stations operating in the
11/12 GHz frequency bands
ETSI TR 101 211 -  Digital Video Broadcasting (DVB); - -
Guidelines on implementation and usage
of Service Information (SI)
ETSI TR 101 290 -  Digital Video Broadcasting - -
(DVB);Measurement guidelines for DVB
systems
ETSI TS 102 831 -  Digital Video Broadcasting (DVB); - -
V1.2.1 Implementation guidelines for a second
generation digital terrestrial television
broadcasting system (DVB-T2)
ETSI TS 102 991 -  Digital Video Broadcasting (DVB) - - -
V1.2.1 Implementation Guidelines for a second
generation digital cable transmission
system (DVB-C2)
IEC 60728-101 ®
Edition 1.0 2016-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Cable networks for television signals,sound signals and interactive services –

Part 101: System performance of forward paths loaded with digital channels only

Réseaux de distribution par câbles pour signaux de télévision, signaux de

radiodiffusion sonore et services intéractifs –

Partie 101: Performances des systèmes de voie directe soumis à une charge de

porteuses exclusivement numériques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.040.20; 33.160.01 ISBN 978-2-8322-3288-0

– 2 – IEC 60728-101:2016 © IEC 2016
CONTENTS
FOREWORD. 8
INTRODUCTION . 10
1 Scope . 15
2 Normative references . 15
3 Terms, definitions, symbols and abbreviations . 17
3.1 Terms and definitions . 17
3.2 Symbols . 29
3.3 Abbreviations . 31
4 Methods of measurement at system outlet . 33
4.1 General . 33
4.2 Basic assumptions and measurement interfaces . 34
4.3 Signal level . 37
4.3.1 General . 37
4.3.2 Equipment required . 38
4.3.3 Connection of the equipment . 38
4.3.4 Measurement procedure . 38
4.3.5 Presentation of the results . 39
4.4 RF signal-to-intermodulation and noise ratio S/IN . 39
4.4.1 General . 39
4.4.2 Equipment required . 39
4.4.3 Connection of the equipment . 40
4.4.4 Measurement procedure . 40
4.4.5 Presentation of the results . 40
4.5 Bit error ratio (BER) . 40
4.5.1 General . 40
4.5.2 Equipment required . 41
4.5.3 Connection of the equipment . 41
4.5.4 Measurement procedure . 41
4.5.5 Presentation of the results . 42
4.6 BER versus S/N . 42
4.6.1 General . 42
4.6.2 Equipment required . 42
4.6.3 Connection of the equipment . 43
4.6.4 Measurement procedure . 43
4.6.5 Presentation of the results . 44
4.7 System operating levels and margins . 45
4.7.1 General . 45
4.7.2 White noise signal margin (SM ) . 47
WN
4.7.3 Intermodulation noise signal margin (SM ) . 48
IN
4.8 Modulation error ratio (MER) . 50
4.8.1 General . 50
4.8.2 Equipment required . 50
4.8.3 Connection of the equipment . 50
4.8.4 Measurement procedure . 51
4.8.5 Presentation of the results . 52
4.9 Phase jitter . 52

IEC 60728-101:2016 © IEC 2016 – 3 –
4.9.1 General . 52
4.9.2 Equipment required . 52
4.9.3 Connection of the equipment . 53
4.9.4 Measurement procedures . 53
4.9.5 Presentation of the results . 55
4.10 Phase noise of an RF carrier . 55
4.10.1 General . 55
4.10.2 Equipment required . 55
4.10.3 Connection of the equipment . 56
4.10.4 Measurement procedure . 56
4.10.5 Presentation of the results . 57
4.11 Mutual isolation between system outlets . 58
4.11.1 General . 58
4.11.2 Equipment required . 58
4.11.3 Connection of the equipment . 58
4.11.4 Measurement procedure . 58
4.11.5 Presentation of the results . 59
4.12 Amplitude response within a channel . 59
4.12.1 General . 59
4.12.2 Equipment required . 59
4.12.3 Connection of the equipment . 60
4.12.4 Measurement procedure . 60
4.12.5 Presentation of the results . 62
4.13 Non-linear distortion . 62
4.13.1 General . 62
4.13.2 Intermodulation . 62
4.13.3 Composite crossmodulation . 62
5 Performance requirements at system outlet . 62
5.1 General requirements . 62
5.2 Overview . 62
5.3 Impedance . 62
5.4 Requirements at the terminal input . 63
5.4.1 General . 63
5.4.2 Signal level . 63
5.4.3 Other parameters . 63
5.5 RF signal levels at system outlets . 63
5.5.1 Minimum and maximum RF signal levels. 63
5.5.2 RF signal level differences . 65
5.6 Mutual isolation between system outlets . 66
5.6.1 Isolation between two subscribers . 66
5.6.2 Isolation between individual outlets in one household . 66
5.6.3 Isolation between forward and return paths . 66
5.7 Frequency response within a television channel at any system outlet . 67
5.7.1 Amplitude response . 67
5.7.2 Group delay . 67
5.8 Long-term frequency stability of distributed signals at any system outlet . 68
5.9 Random noise . 69
5.10 Interference to television channels . 71
5.10.1 Single-frequency interference . 71

– 4 – IEC 60728-101:2016 © IEC 2016
5.10.2 Intermodulation noise . 71
5.11 DVB (PSK, QAM, OFDM) additional performance requirements . 71
5.11.1 BER . 71
5.11.2 PER . 71
5.11.3 White noise signal margin (SM ) . 71
WN
5.11.4 Intermodulation noise signal margin (SM ) . 72
IN
5.11.5 MER . 72
5.11.6 Phase noise of a DVB signal . 72
5.12 DAB performance . 73
6 Performance requirements at receiving antennas . 74
6.1 General . 74
6.2 Method of measurement of field strength . 74
6.2.1 General . 74
6.2.2 Equipment required . 74
6.2.3 Connection of the equipment . 74
6.2.4 Measurement procedure . 75
6.2.5 Presentation of the results . 75
6.3 Requirements . 75
6.3.1 General . 75
6.3.2 Field strength requirements . 76
6.3.3 Quality of received signals . 77
6.3.4 Safety . 80
6.3.5 Electromagnetic compatibility (EMC) . 80
6.4 Interference reduction . 80
6.4.1 General . 80
6.4.2 Active antennas . 80
7 Performance requirements at home network interfaces of cable networks . 80
7.1 General . 80
7.2 Requirements at HNI1 for passive coaxial home networks . 81
7.2.1 General . 81
7.2.2 Signal levels at the HNI1 . 82
7.2.3 Mutual isolation between two HNI1 . 84
7.2.4 Frequency response within any television channel at the HNI1 . 84
7.2.5 Long-term frequency stability of distributed RF signals at HNI1 . 85
7.2.6 Random noise at the HNI1 . 85
7.2.7 Interference to television channels at the HNI1 . 85
7.2.8 Return path requirements at the HNI1. 86
7.3 Requirements at HNI2 for active coaxial home networks . 86
7.3.1 General . 86
7.3.2 RF signal levels at the HNI2 . 86
7.3.3 Mutual isolation between two HNI2 . 89
7.3.4 Frequency response within any television channel at the HNI2 . 89
7.3.5 Long-term frequency stability of distributed RF signals at HNI2 . 90
7.3.6 Random noise at HNI2 . 90
7.3.7 Interference to television channels at the HNI2 . 92
7.3.8 Return path requirements at the HNI2. 93
7.4 Requirements at HNI3 and at system outlet or terminal input when the home
network is mainly of balanced type . 93

IEC 60728-101:2016 © IEC 2016 – 5 –
7.4.1 General . 93
7.4.2 Requirements at HNI3 . 93
7.4.3 Requirements at system output . 93
7.4.4 Additional requirements at HNI3 for upstream transmission . 94
7.5 Requirements at HNI3 (case C) . 94
7.6 Requirements at HNI3 (case D) . 94
Annex A (normative) Correction factors for noise . 96
A.1 Signal level measurement . 96
A.2 Noise level measurement . 96
Annex B (normative) Null packet and PRBS definitions . 98
B.1 Null packet definition . 98
B.2 PRBS definition . 99
Annex C (normative) Digital signal level and bandwidth . 100
C.1 RF/IF power ("carrier") . 100
C.2 Bandwidth of a digital signal . 100
C.2.1 Occupied bandwidth . 100
C.2.2 Noise bandwidth . 101
C.2.3 Equivalent signal bandwidth . 101
C.3 Examples . 102
Annex D (normative) Correction factor for a spectrum analyser . 103
Annex E (informative) Differences in some countries . 104
E.1 Subclause 3.1.48, Norway . 104
E.2 Subclause 5.5.1, Japan . 104
E.3 Subclause 5.5.2, Japan . 104
E.4 Subclause 5.6.1, Japan . 105
E.5 Subclause 5.7.1, Japan . 105
E.6 Subclause 5.7.2 Japan . 105
E.7 Subclause 5.8, Japan . 105
E.8 Subclause 5.9, Japan . 105
E.9 Subclause 5.10.1, Japan . 105
E.10 Subclause 5.11.6, Japan . 106
E.11 Subclause 6.3.3, Japan . 107
E.12 Clause 7, Japan . 107
Bibliography . 108

Figure 1 – Example of a master antenna television system (MATV) for terrestrial
reception . 11
Figure 2 – Example of the headend of a master antenna television system for satellite
(SMATV) reception . 12
Figure 3 – Example of a master antenna television system for terrestrial and satellite
(SMATV) reception . 12
Figure 4 – Example of a cabled distribution system for television and sound signals . 13
Figure 5 – System model for downstream direction of a cable network for television
and sound signals (CATV) . 14
Figure 6 – PSK modulation (QPSK, BPSK or TC8PSK) . 34
Figure 7 – DVB-S2 modulation (QPSK, 8PSK, 16APSK, 32APSK) . 34
Figure 8 – DVB-C QAM modulation . 34
Figure 9 – DVB-C2 QAM modulation . 35

– 6 – IEC 60728-101:2016 © IEC 2016
Figure 10 – DVB-T OFDM modulation . 35
Figure 11 – DVB-T2 OFDM modulation . 35
Figure 12 – Reference receiver for PSK demodulation (QPSK, BPSK or TC8PSK) . 36
Figure 13 – Reference receiver for DVB-S2 demodulation (QPSK, 8PSK, 16APSK,
32APSK) . 36
Figure 14 – Reference receiver for DVB-C QAM demodulation . 36
Figure 15 – Reference receiver for DVB-C2 demodulation . 36
Figure 16 – Reference receiver for DVB-T OFDM demodulation . 37
Figure 17 – Reference receiver (buffer model) for DVB-T2 OFDM demodulation . 37
Figure 18 – Test set-up for BER measurement . 41
Figure 19 – Test set-up for BER measurement versus S/N . 43
Figure 20 – Example of BER measurement versus S/N . 45
Figure 21 – Example of S/IN and BER versus signal level S for a cable network without

optical link . 46
Figure 22 – Optical and coaxial subsystems of an HFC network . 46
Figure 23 – Test set-up for SM and SM measurement . 48
WN IN
Figure 24 – Test set-up for modulation error ratio (MER) measurement and phase jitter
measurement . 51
Figure 25 – Example of constellation diagram for a 64 QAM modulation format . 52
Figure 26 – Example of constellation diagram for a 64 QAM modulation format with
arcs due to phase jitter . 54
Figure 27 – Test set-up for phase noise measurement . 56
Figure 28 – Example of mask for phase noise measurements: PSK, APSK and QAM

formats . 57
Figure 29 – Example of mask for phase noise measurements: OFDM format . 57
Figure 30 – Arrangement of test equipment for measurement of mutual isolation
between system outlets . 58
Figure 31 – Arrangement of test equipment for measurement of frequency response
within a channel . 60
Figure 32 – Interpretation of displays for measurement of frequency response within a
channel . 61
Figure 33 – Home network types used to define the requirements at several HNI types
(coaxial) . 81
Figure A.1 – Noise correction factor CF versus measured level difference D . 97
Figure E.1 – Single-frequency interference (64 QAM digital) (Japan) . 106
Figure E.2 – Single-frequency interference (256 QAM digital) (Japan) . 106

Table 1 – Application of the methods of measurement . 33
Table 2 – Frequency distance f . 57
m
Table 3 – Digital signal levels at any system outlet . 64
Table 4 – Maximum level differences at any system outlet between distributed
television channels . 66
Table 5 – Residual carrier level at television or FM radio output within the same outlet
or between two different outlets . 67
Table 6 – Amplitude response variation . 67
Table 7 – Group delay variation . 68

IEC 60728-101:2016 © IEC 2016 – 7 –
Table 8 – Maximum deviation of conversion frequency for digitally modulated DVB
signals . 68
Table 9 – RF signal-to noise ratio at system outlet . 69
Table 10 – Modulation error ratio MER of DVB signals . 72
Table 11 – Phase noise of a DVB signal (PSK, APSK and QAM) . 73
Table 12 – Phase noise of a DVB-T or DVB-C2 signal (COFDM) . 73
Table 13 – Minimum field strength levels recommended by CEPT [3] . 76
Table 14 – Minimum signal level at the headend input for the reception of DAB signals . 77
Table 15 – Minimum signal level and RF signal-to-noise ratio at the headend input for
stationary reception of DVB-T signals . 77
Table 16 – Minimum signal-to-noise ratio S/N at the headend input for DVB-T2 signals . 78
Table 17 – Minimum RF signal-to-noise ratio at the headend input for the reception of
DVB-S or DVB-S2 satellite signals . 79
Table 18 – Signal level at HNI1 . 82
Table 19 – Maximum level differences at HNI1 . 84
Table 20 – Amplitude response variation at HNI1 . 85
Table 21 – Group delay variation at HNI1 . 85
Table 22 – Signal level at HNI2 . 87
Table 23 – Maximum level differences at HNI2 . 89
Table 24 – Amplitude response variation at HNI2 . 90
Table 25 – Group delay variation at HNI2 . 90
Table 26 – Minimum RF signal-to-noise ratios at HNI2 . 91
Table 27 – Minimum signal level at coaxial terminal input (case A) or at coaxial
system outlet (case B) . 94
Table A.1 – Noise correction factor . 96
Table B.1 – Null transport stream packet definition . 98
Table C.1 – Examples of bandwidths for digital modulation techniques . 102

– 8 – IEC 60728-101:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
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Part 101: System performance of forward paths
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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 a
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