IEC INTERNATIONAL 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 Referencenumber IEC 62272-2:2007(E) Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1. Consolidatededitions The IEc is now publishing consolidated versions of its publications. For example edition numbers1.0, 1.1and 1.2 refer, respectively,to the base publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2. FurtherinformationonIEcpublications The technical content of IEC publications is kept under constant review by the IEC, thus ensuring that the content reflects current technology. Information relating to this publication,including itsvalidity,is available in the IEC Catalogue of publications (see below) in addition to new editions, amendments and corrigenda. Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication, as well as the list of publications issued, is also available from the following: IEc Web Site (www.iec.ch) Catalogue of IEc publications The on-line catalogue on the IEC web site (www.iec.ch/searchpub) enables you to search by a variety of criteria including text searches, technical committees and date of publication. On-line information is also available on recently issued publications, withdrawn and replaced publications, as well as corrigenda. IEC Just Published This summary of recently issued publications (www.iec.ch/online news/ justpub) is also available by email. Please contact the Customer Service Centre (see below) for further information. CustomerServiceCentre If you have any questions regarding this publication or need further assistance, please contact the Customer Service Centre Email: [email protected] Tel: +41 22 919 02 11 Fax: +41229190300 IEC INTERNATIONAL STANDARD 62272-2 First edition 2007-03 Digital radiomondiale(DRM)- Part 2: Digital radio inthe bandsbelow30MHz Methods of measurement for DRM transmitters @ IEC 2007—Copyright-all rights reserved mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varembe, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: +41 22 919 02 11Telefax: +41 22 919 03 00 E-mail: [email protected]: www.iec.ch R IEC PRICECODE Commission Electrotechnique Internationale International Electrotechnical Commission MekAyHapoAHag3nekTpoTexHuyeckagKoMuccug For price, see current catalogue 62272-2 @IEC:2007(E) 2 CONTENTS FOREWORD. Scope. Normative references 2 3 Terms, definitions and abbreviations.. 3.1 Terms and definitions 3.2Abbreviations.. 4 General conditions of operation. 5 General conditions of measurement.. 5.1 Inputandoutputmeasurementarrangements 5.2 Temperature and humidity . 8 5.3 Conditions for primary power supply. 8 5.4 Output power.... General characteristics 6 6.1 Output power. 6.2 Frequency.... Transmission performance characteristics 7.1 Spurious emissions.. 11 7.2 Out-of-band emissions (spectrum mask) 7.3 Modulation error ratio (MER) 13 7.4 Bit error ratio (BER). Protection against atmospheric discharge 8 14 9 Acoustic noise 15 Safety 10 15 AnnexA(informative)Measuringarrangements. 16 Annex B(informative)Out-of-band emission limits forDRM transmitters .18 AnnexC(informative)Additional measuring details. ...20 Figure1-Spectrumoccupancyfor9kHzchannels. 10 Figure2-Spectrumoccupancyfor10kHzchannels 10 Figure3-PRBSgenerator FigureA.1-ArrangementA.. 16 Figure A.2-Arrangement B.. Figure A.3-Arrangement C. .17 Figure A.4 - Arrangement D. 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 62272-2@IEC:2007(E) - 3 - INTERNATIONALELECTRO