IEC 62028:2002

General methods of measurement for digital television receivers

IEC 62028:2002 describes standard conditions and methods of measurement on digital television receivers which receive digital television broadcast transmissions. It deals with the determination of performance and allows the comparison of equipment by listing the characteristics which are useful for specifications and by laying down uniform measuring methods of these characteristics. Performance requirements are not specified, since they are specified by other international, regional or domestic standards for the systems. This bilingual version corresponds to the monolingual English version, published in 2002-02.

Méthodes de mesure générales pour récepteurs de télévision numériques

La CEI 62028:2002 traite des conditions et méthodes standardisées de mesure des récepteurs de télévision numérique qui reçoivent de la télévision numérique radiodiffusée. Elle traite de la détermination des performances; elle permet la comparaison des matériels en énumérant les caractéristiques utiles pour les spécifier et en définissant des méthodes de mesure uniformes de ces caractéristiques. Les exigences en performances ne sont pas spécifiées, puisqu'elles sont détaillées dans d'autres normes internationales, régionales ou nationales pour les systèmes. La présente version bilingue correspond à la version anglaise monolingue publiée en 2002-02.

General Information

• Status: Published
• Publication Date: 04-Feb-2002
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.160.20 - Radio receivers
• Technical Committee: TC 100 - Audio, video and multimedia systems and equipment
• Current Stage: PPUB - Publication issued
• Start Date: 15-Jun-2002
• Completion Date: 05-Mar-2002

Standards Content (Sample)

IEC 62028
®

Edition 1.0 2002-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


General methods of measurement for digital television receivers

Méthodes de mesure générales pour récepteurs de télévision numériques


IEC 62028:2002

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IEC 62028
®

Edition 1.0 2002-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


General methods of measurement for digital television receivers

Méthodes de mesure générales pour récepteurs de télévision numériques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX X
ICS 33.160.20 ISBN 2-8318-6226-4

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – 62028 © IEC:2002

CONTENTS
FOREWORD . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviations . 8
3.1 Terms and definitions . 8
3.2 Abbreviations . 8
4 Conceptual block diagram of digital television receivers . 11
4.1 General . 11
4.1.1 Types of receivers . 11
4.1.2 Peripheral connectors . 11
4.2 Basic common block diagram . 11
4.2.1 General . 11
4.2.2 Satellite broadcasting system . 11
4.2.3 Terrestrial broadcasting system . 11
4.2.4 CATV system. 12
5 General notes on measurements . 12
5.1 General conditions . 12
5.2 Test signals . 12
5.2.1 Video test signals . 12
5.2.2 Audio test signals . 12
5.2.3 Data test signals . 12
5.3 RF (radio frequency) television signal . 13
5.3.1 General . 13
5.3.2 Reference modulation . 13
5.3.3 Signal level . 13
5.4 Measuring systems and test instruments . 13
5.4.1 Measuring system . 13
5.4.2 Base band test signal generators . 13
5.4.3 Service data generator . 13
5.4.4 Encoders . 13
5.4.5 Modulator . 14
5.4.6 BER analyzer . 14
5.5 Standard measuring conditions . 14
5.5.1 Standard input signal levels . 14
5.5.2 Standard output signal levels . 14
5.5.3 Standard receiver settings . 14
5.5.4 General conditions . 14
5.6 Standard viewing conditions . 14
6 Assessment of received picture and sound quality . 15
6.1 Subjective tests of basic received quality . 15
6.1.1 Objectives . 15
6.1.2 Methodology . 15
7 Methods of measurement of RF signals . 17
7.1 General . 17
7.2 Method of measurement of RF signal level . 20

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62028 © IEC:2002 – 3 –
7.2.1 Introduction . 20
7.2.2 Equipment required . 20
7.2.3 Connection of the equipment . 20
7.2.4 Measurement procedure . 20
7.2.5 Presentation of the results . 21
7.3 Method of measurement of carrier to noise ratio (C/N) . 21
7.3.1 Introduction . 21
7.3.2 Equipment required . 21
7.3.3 Connection of the equipment . 22
7.3.4 Measurement procedure . 22
7.3.5 Presentation of the results . 22
7.4 Method of measurement of Bit Error Rate (BER) . 22
7.4.1 Introduction . 22
7.4.2 Equipment required . 23
7.4.3 Connection of the equipment . 23
7.4.4 Measurement procedure . 23
7.4.5 Presentation of the results . 24
7.5 Method of measurement of BER versus E /N . 24
b o
7.5.1 Introduction . 24
7.5.2 Equipment required . 24
7.5.3 Connection of the equipment . 24
7.5.4 Measurement procedure . 25
7.5.5 Presentation of the results . 25
7.6 Method of measurement of noise margin . 26
7.6.1 Introduction . 26
7.6.2 Equipment required . 26
7.6.3 Connection of the equipment . 27
7.6.4 Measurement procedure . 27
7.6.5 Presentation of the results . 27
7.7 Method of measurement of Modulation Error Ratio (MER) . 27
7.7.1 Introduction . 27
7.7.2 Equipment required . 28
7.7.3 Connection of the equipment . 28
7.7.4 Measurement procedure . 28
7.7.5 Presentation of the results . 29
7.8 Method of measurement of phase jitter . 29
7.8.1 Introduction . 29
7.8.2 Equipment required . 29
7.8.3 Connection of the equipment . 30
7.8.4 Measurement procedure . 30
7.8.5 Presentation of the results . 31
7.9 Method of measurement of phase noise of a RF carrier . 31
7.9.1 Introduction . 31
7.9.2 Equipment required . 32
7.9.3 Connection of the equipment . 32
7.9.4 Measurement procedure . 32
7.9.5 Presentation of the results . 33
8 Measurements of the MPEG-2 transport stream . 33
8.1 Introduction . 33

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– 4 – 62028 © IEC:2002
8.2 Method of measurement . 34
8.2.1 Introduction . 34
8.2.2 Equipment required . 34
8.2.3 Connection of the equipment . 34
8.2.4 Measurement procedure . 34
8.2.5 Presentation of the results . 37
Annex A (normative) Digital signal level and bandwidth . 40
Annex B (normative) Correction factor for spectrum analyser . 44
Annex C (normative) Correction factors for noise . 45
Bibliography . 47

Figure 1 – Conceptual configuration of a digital broadcasting system. 12
Figure 2 – Measuring set-up . 15
Figure 3 – Layout of a basic received quality assessment trial . 16
Figure 4 – Rating scales used in the basic received quality test . 17
Figure 5 – Reference RF signal source – I/Q signal source and RF modulator . 18
Figure 6 – Reference receiver . 19
Figure 7 – Test set-up for BER measurement . 23
Figure 8 – Test set-up for BER measurement versus E /N . 25
b o
Figure 9 – Example of BER measurement versus E /N . 26
b o
Figure 10 – Test set-up for noise margin measurement . 27
Figure 11 – Test set-up for MER measurement . 28
Figure 12 – Example of constellation diagram for a 64QAM modulation format where
th
the i point has been enlarged to show the co-ordinates of the symbol error vector . 29
Figure 13 – Test set-up for phase jitter measurement . 30
Figure 14 – Example of constellation diagram for a 64QAM modulation format where
are shown the "corner decision boundary boxes" for the phase jitter . 30
Figure 15 – Test set-up for phase noise measurement . 32
Figure 16 – Possible mask for CPE measurements – the points A, B and C to be
defined . 33
Figure 17 – Measurement set-up for the evaluation of the MPEG-2 transport stream
parameters for a communication link using a coaxial cable and synchronous serial
transmission (SSI type) . 37
Figure 18 – Measurement set-up for the evaluation of the MPEG-2 transport stream
parameters for a communication link using a fibre-optic cable and synchronous serial
transmission (SSI type) . 37
Figure 19 – Measurement set-up for the evaluation of the MPEG-2 transport stream
parameters for a communication link using a coaxial cable and asynchronous serial
transmission (ASI type) . 38
Figure 20 – Measurement set-up for the evaluation of the MPEG-2 transport stream
parameters for a communication link using a fibre-optic cable and asynchronous serial
transmission (ASI type) . 38
Figure 21 – Measurement set-up for the evaluation of the MPEG-2 transport stream
parameters for a communication link that feeds a CATV system using a satellite
transponder and a down link in the 11/12 GHz band . 38
Figure 22 – Measurement set-up for the evaluation of the MPEG-2 transport stream
parameters for a communication link that feeds a SMATV system using a satellite
transponder and a down link in the 11/12 GHz band . 39
Figure A.1 – VSB channel occupancy . 41

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62028 © IEC:2002 – 5 –
Figure C.1 – Noise correction factor CF (dB) versus measured level difference D (dB) . 46

Table 1 – Frequency offsets for 2k and 8k OFDM systems . 33
Table 2 – First priority – necessary for de-codability (basic monitoring) . 35
Table 3 – Second priority – recommended for continuous or periodic monitoring. 35
Table 4 – Third priority – application dependant monitoring . 36
Table A.1 – Examples of bandwidth for digital modulation techniques . 43
Table C.1 – Noise correction factor . 45

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

GENERAL METHODS OF MEASUREMENT
FOR DIGITAL TELEVISION RECEIVERS

FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The IEC collaborates closely with the International
Organization for Standardization (ISO) in accordance with conditions determined by agreement between the
two organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62028 has been prepared by IEC technical committee 100: Audio,
video and multimedia systems and equipment.
This bilingual version (2011-12) corresponds to the monolingual English version, published in
2002-02.
The text of this standard is based on the following documents:
CDV Report on voting
100/232/CDV 100/427/RVC

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
Annexes A, B, and C form an integral part of this standard.
The committee has decided that the contents of this publication will remain unchanged until
2004. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.

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62028 © IEC:2002 – 7 –
GENERAL METHODS OF MEASUREMENT
FOR DIGITAL TELEVISION RECEIVERS



1 Scope
IEC 62028 deals with the standard conditions and methods of measurement on digital
television receivers which receive digital television broadcast transmissions.
IEC 62028 deals with the determination of performance and allows the comparison of
equipment by listing the characteristics which are useful for specifications and by laying down
uniform measuring methods of these characteristics. Performance requirements are not
specified, since they are specified by other international, regional or domestic standards for
the systems.
It does not include the measurements specific to the transmission system, such as;
• measurements on receivers for satellite transmission systems,
• measurements on receivers for terrestrial transmission systems,
• measurements on receivers for cable transmission systems,
• measurements specific to sound channels, and
• measurements specific to data channels.
IEC 62028 does not include methods of measurement on outdoor units and antennas for
satellite reception, for which reference is required to other appropriate IEC standards.
IEC 62028 does not deal with general safety matters, for which reference is required to IEC 60065,
or other appropriate IEC safety standards, nor with radiation and immunity, which will be dealt with
by CISPR.
2 Normative references
The following referenced documents are indispensable for the application 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 60107-1:1997, Methods of measurement on receivers for television broadcast
transmissions – Part 1: General considerations – Measurements at radio and video
frequencies
ISO/IEC 13818-1:2000, Information technology – Generic coding of moving pictures and
associated audio: Systems
ISO/IEC 13818-4:1998, Information technology – Generic coding of moving pictures and
associated audio information – Part 4: Conformance testing
ISO/IEC 13818-9:1996, Information technology – Generic coding of moving pictures and
associated audio information – Part 9: Extension for real time interface for systems decoders
ITU-R BT.500-10:2000, Methodology for the subjective assessment of quality of television
pictures

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– 8 – 62028 © IEC:2002
EN 300 421 Digital video broadcasting (DVB) – Framing structure, channel coding and
modulation for 11/12 GHz satellite services
EN 300 429 Digital video broadcasting (DVB) – Framing structure, channel coding and
modulation for cable systems
EN 300 744 Digital video broadcasting (DVB) – Framing structure, channel coding and
modulation for digital terrestrial television”
ETR 211:1997, Digital video broadcasting (DVB) – Guidelines on implementation and usage
of Service Information (SI)
ETS 300 468:2000, Digital video broadcasting (DVB) – Specification for Service Information
(SI) in DVB systems
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this publication, the following terms and definitions apply:
3.1.1
MPEG-2
refers to the ISO/IEC 13818 series. System coding is defined in part 1, video coding is
defined in part 2, audio coding is defined in part 3
3.1.2
multiplex
stream of all the digital data carrying one or more services within a single physical channel
3.1.3
service information (SI)
digital data describing the delivery system, content and scheduling/timing of broadcast data
streams etc. It includes MPEG-2 program specific information (PSI) together with
independently defined extensions.
3.1.4
transport stream (TS)
a data structure defined in ISO/IEC 13818-1
3.2 Abbreviations
AGC Automatic Gain Controller
ARIB Association of Radio Industries and Business
ASCII American Standard Code for Information Interchange
ATM Asynchronous Transfer Mode
ATSC Advanced Television Systems Committee
BAT Bouquet Association Table
BEP Bit Error Probability
BER Bit Error Rate
BPSK Biphase Shift Keying
bslbf bit string, left bit first
CA Conditional Access
CAT Conditional Access Table
...