Digital radio mondiale (DRM) -- Part 2: Digital radio in the bands below 30 MHz - Methods of measurement for DRM transmitters

describes the methods of measurement to assess the performance characteristics of digital modulated radio transmitters in the bands below 30 MHz for sound and/or data broadcasting in the LF, MF and HF bands, and to facilitate the comparison of measurements which are carried out by different personnel. It contains details of specially selected methods for determining the most important performance parameters of digital radio transmitters. The measurement methods described apply to a limited number of performance parameters, i.e. those which can give rise to ambiguous interpretation due to the use of different methods and conditions. They are neither restrictive nor mandatory: measurements can be chosen for each particular case.

Digital radio mondiale (DRM) -- Teil 2: Digitaler Rundfunk in den Bändern unterhalb 30 MHz - Messverfahren für DRM-Sender

Digital radio mondiale (DRM) -- Partie 2 : Radiodiffusion numérique dans les bandes de fréquences en dessous de 30 MHz - Méthodes de mesure des émetteurs DRM

La CEI 62272-2:2007 décrit les méthodes permettant de mesurer les performances des émetteurs radioélectriques à modulation numérique transmettant du son et/ou des données sur les bandes inférieures à 30 MHz, sur les ondes courtes, moyennes, et longues, et de faciliter la comparaison de mesures réalisées par différentes personnes. La présente version bilingue (2012-05) correspond à la version anglaise monolingue publiée en 2007-03.

Digitalna zvokovna radiodifuzija v frekvenčnih pasovih pod 30 MHz – 2. del: Metode za meritve radijskih oddajnikov (IEC 62272-2:2007)

General Information

Status
Withdrawn
Publication Date
01-Jul-2007
Withdrawal Date
24-Aug-2021
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
28-Jul-2021
Due Date
20-Aug-2021
Completion Date
25-Aug-2021

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SLOVENSKI STANDARD
SIST EN 62272-2:2007
01-julij-2007
Digitalna zvokovna radiodifuzija v frekvenčnih pasovih pod 30 MHz – 2. del:
Metode za meritve radijskih oddajnikov (IEC 62272-2:2007)
Digital radio mondiale (DRM) -- Part 2: Digital radio in the bands below 30 MHz -
Methods of measurement for DRM transmitters
Digital radio mondiale (DRM) -- Teil 2: Digitaler Rundfunk in den Bändern unterhalb 30
MHz - Messverfahren für DRM-Sender
Digital radio mondiale (DRM) -- Partie 2 : Radiodiffusion numérique dans les bandes de
fréquences en dessous de 30 MHz - Méthodes de mesure des émetteurs DRM
Ta slovenski standard je istoveten z: EN 62272-2:2007
ICS:
33.170 Televizijska in radijska Television and radio
difuzija broadcasting
SIST EN 62272-2:2007 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62272-2:2007

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SIST EN 62272-2:2007


EUROPEAN STANDARD
EN 62272-2

NORME EUROPÉENNE
April 2007
EUROPÄISCHE NORM

ICS 33.060.20


English version


Digital radio mondiale (DRM) -
Part 2: Digital radio in the bands below 30 MHz -
Methods of measurement for DRM transmitters
(IEC 62272-2:2007)


Digital radio mondiale (DRM) -  Digital radio mondiale (DRM) -
Partie 2: Radiodiffusion numérique Teil 2: Digitaler Rundfunk
dans les bandes de fréquences in den Bändern unterhalb 30 MHz -
en dessous de 30 MHz - Messverfahren für DRM-Sender
Méthodes de mesure des émetteurs DRM (IEC 62272-2:2007)
(CEI 62272-2:2007)




This European Standard was approved by CENELEC on 2007-04-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62272-2:2007 E

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SIST EN 62272-2:2007
EN 62272-2:2007 - 2 -
Foreword
The text of document 103/64/FDIS, future edition 1 of IEC 62272-2, prepared by IEC TC 103,
Transmitting equipment for radio communication, was submitted to the IEC-CENELEC parallel vote and
was approved by CENELEC as EN 62272-2 on 2007-04-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2008-01-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-04-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62272-2:2007 was approved by CENELEC as a European
Standard without any modification.
__________

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SIST EN 62272-2:2007
- 3 - EN 62272-2:2007

Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

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.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

1) 2)
IEC 60215 - Safety requirements for radio transmitting EN 60215 1989
equipment


1) 2)
IEC 60244-1 - Methods of measurement for radio EN 60244-1 2000
transmitters -
Part 1: General characteristics for broadcast
transmitters


1) 2)
IEC 60244-15 - Methods of measurement for radio EN 60244-15 2000
transmitters -
Part 15: Amplitude-modulated transmitters for
sound broadcasting


1)
ITU-R - Radio Regulations - -


1)
ITU-R - Use of certain terms linked with physical - -
Recommendation quantities
V.663



1)
Undated reference.
2)
Valid edition at date of issue.

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SIST EN 62272-2:2007

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SIST EN 62272-2:2007


INTERNATIONAL IEC


STANDARD 62272-2





First edition
2007-03


Digital radio mondiale (DRM) –
Part 2:
Digital radio in the bands below 30 MHz –
Methods of measurement for DRM transmitters
© IEC 2007 ⎯ Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale R
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

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SIST EN 62272-2:2007
– 2 – 62272-2 © IEC:2007(E)
CONTENTS
FOREWORD.3

1 Scope.5
2 Normative references.5
3 Terms, definitions and abbreviations .6
3.1 Terms and definitions .6
3.2 Abbreviations.6
4 General conditions of operation.7
5 General conditions of measurement .7
5.1 Input and output measurement arrangements .7
5.2 Temperature and humidity .8
5.3 Conditions for primary power supply.8
5.4 Output power.8
6 General characteristics .8
6.1 Output power.8
6.2 Frequency .9
7 Transmission performance characteristics .11
7.1 Spurious emissions.11
7.2 Out-of-band emissions (spectrum mask) .12
7.3 Modulation error ratio (MER).13
7.4 Bit error ratio (BER) .13
8 Protection against atmospheric discharge .14
9 Acoustic noise .15
10 Safety.15

Annex A (informative) Measuring arrangements.16
Annex B (informative) Out-of-band emission limits for DRM transmitters.18
Annex C (informative) Additional measuring details .20

Figure 1 – Spectrum occupancy for 9 kHz channels.10
Figure 2 – Spectrum occupancy for 10 kHz channels .10
Figure 3 – PRBS generator .14
Figure A.1 – Arrangement A .16
Figure A.2 – Arrangement B .16
Figure A.3 – Arrangement C.17
Figure A.4 – Arrangement D.17
Figure B.1 – Out-of-band emission limits (upper half only of a symmetrical spectrum
mask shown).18

Table B.1 – Out-of-band emission limits .18

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SIST EN 62272-2:2007
62272-2 © IEC:2007(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

DIGITAL RADIO MONDIALE (DRM) –

Part 2: Digital radio in the bands below 30 MHz –
Methods of measurement for DRM transmitters


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 accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of 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 IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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.
International Standard IEC 62272-2 has been prepared by IEC technical committee 103:
Transmitting equipment for radiocommunication.
The text of this standard is based on the following documents:
FDIS Report on voting
103/64/FDIS 103/66/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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SIST EN 62272-2:2007
– 4 – 62272-2 © IEC:2007(E)
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

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SIST EN 62272-2:2007
62272-2 © IEC:2007(E) – 5 –
DIGITAL RADIO MONDIALE (DRM) –

Part 2: Digital radio in the bands below 30 MHz –
Methods of measurement for DRM transmitters



1 Scope
This part of IEC 62272 describes the methods of measurement to assess the performance
characteristics of digital modulated radio transmitters in the bands below 30 MHz for sound
and/or data broadcasting in the LF, MF and HF bands, and to facilitate the comparison of
measurements which are carried out by different personnel.
It contains details of specially selected methods for determining the most important
performance parameters of digital radio transmitters. The measurement methods described
apply to a limited number of performance parameters, i.e. those which can give rise to
ambiguous interpretation due to the use of different methods and conditions. They are neither
restrictive nor mandatory: measurements can be chosen for each particular case.
The measurement methods described in this standard are intended to be used for type
approval tests, quality control tests or acceptance test measurements in factories and on site.
Fewer or additional measurements may be carried out by agreement between customer and
supplier. Any additional test should comply with standards which have been established by
other study groups, subcommittees of the IEC or other international or suitably accredited
organizations.
This standard does not specify limiting values for acceptable performance as these are usually
given in the equipment specification or in requirements laid down by the responsible regulation
bodies. However, some values are quoted, where appropriate, for guidance in the presentation
of the results.
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 60244-1, Methods of measurement for radio transmitters – Part 1: General characteristics
for broadcast transmitters
IEC 60244-15, Methods of measurement for radio transmitters – Part 15: Amplitude-modulated
transmitters for sound broadcasting
IEC 60215, Safety requirements for radio transmitting equipment
ITU Radio Regulations
ITU-R Recommendation V.663, Use of certain terms linked with physical quantities

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SIST EN 62272-2:2007
– 6 – 62272-2 © IEC:2007(E)
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
DRM standard
digital modulation standard for frequencies in the bands below 30 MHz for the purposes of
audio and data broadcasting
3.1.2
DRM transmitters
sound broadcasting transmitters operating in the bands below 30 MHz and incorporating digital
1
modulation in accordance with IEC 62272-1
3.1.3
power definitions
nominal output power is the continuous DRM mean power for which the transmitter is
designed
maximum output power is the maximum possible continuous DRM mean power which the
transmitter can deliver. The maximum output power might be concordant with the nominal
output power
minimum output power is the minimum possible continuous DRM mean power for which the
transmitter is designed
3.1.4
necessary bandwidth
for a given class of emission, the width of a frequency band which is just sufficient to ensure
the transmission of information at the rate and with the quality required under specified
conditions (ITU definition)
For the practical purposes of this standard, the necessary bandwidth for a DRM signal can be
considered to be the same as the allocated channel bandwidth, for example, 10 kHz for a
standard HF channel.
3.2 Abbreviations
BER Bit Error Ratio
BS Broadcasting Service
DRM Digital Radio Mondiale
FAC Fast Access Channel
HF High Frequency
IEC International Electrotechnical Commission
ISO International Organization for Standardization
ITU International Telecommunications Union
ITU-R International Telecommunications Union – Radiocommunications Sector
LF Low Frequency
MER Modulation Error Ratio
MF Medium Frequency
MLC Multi-Level Coding
MSC Main Service Channel
___________
1
IEC 62272-1, Digital radio mondiale – Part 1: System specification

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SIST EN 62272-2:2007
62272-2 © IEC:2007(E) – 7 –
OFDM Orthogonal Frequency Division Multiplex
PRBS Pseudo-Random Bit Sequence
QAM Quadrature Amplitude Modulation
RF Radiofrequency
SDC Service Description Channel
SM Spectrum Management
Tx Transmitter
4 General conditions of operation
Any device for the suppression of unwanted signals, irrespective of whether or not the device is
located inside the transmitter, shall be considered as part of the transmitter for the purposes of
this standard.
Feeders and antennas to which the transmitter might be connected are not considered part of
the transmitter and therefore excluded.
Unless otherwise specified, the measurements shall be made under normal operating and
environmental conditions and at the nominal output power. If required, they shall be repeated
under extreme operating and environmental conditions and at any lower output power in
accordance with the equipment specification.
The transmitting mode and the measured output power of the transmitter under test shall be
stated.
The mains supply and the environmental conditions shall be stated with the measurement
results.
The transmitter shall be connected to a test load having a VSWR relative to the nominal load
impedance of the transmitter not greater than
– 1,2:1 at frequencies within the designated broadcast band;
– 1,5:1 at all frequencies outside the designated broadcast band up to a frequency of
10 times the highest frequency in the designated band.
If the transmitter includes devices to control the frequency band transmitted, all the
characteristics shall be measured with the devices in the circuit.
Measurement uncertainty should be calculated and techniques employed to minimize its range.
This uncertainty should be applied to the limit and any measurement falling below the range is
deemed acceptable.
If a digital transmitter can also operate in analogue mode, the requirements of IEC 60244-1
and IEC 60244-15 shall also apply, in addition to the requirements of this standard.
5 General conditions of measure
...

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