IEC INTERNATIONAL STANDARD 62273-1 First edition 2007-02 Methods of measurement for radio transmitters- Part 1: Performance characteristics of terrestria digital television transmitters IEC Referencenumber IEC 62273-1:2007(E) Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series.For example,IEC 34-1is now referred to as IEC 60034-1. Consolidated editions The IEc is now publishing consolidated versions of its publications. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively,to the base publication, the 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 its.validity, 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 On-line information is also available on recently issued publications, withdrawn and replaced publications, as well as corrigenda. IECJustPublished 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 Customer Service Centre If you have any questions regarding this publication or need further assistance. please contactthe Customer Service Centre: Email: [email protected] Tel: +41 22 919 02 11 Fax: +41229190300 IEC INTERNATIONAL STANDARD 62273-1 First edition 2007-02 Methods of measurement for radio transmitters- Part 1: Performance characteristics of terrestrial digital television 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 W PRICECODE IEC Commission Electrotechnique Internationale nternational Electrotechnical Commission MekAyHapoAHag3nekTpoTexHuyeckagKoMuccg For price, see current catalogue 62273-1 @IEC:2007(E) 2 CONTENTS FOREWORD Scope 2 Normative references 6 3 Terms,definitions and abbreviations. 4 General conditions ofmeasurement 4.1 Temperature and humidity... 9 4.2 Conditions for primary power supply.. 4.3 Output power.. 4.4 Test load... 4.5 Auxiliary equipment... .9 4.6 Test equipment and test signals .. 10 5 General characteristics 10 5.1 Frequency. 5.2 Output power.. 5.3 Spurious domain emission. 14 5.4 Out-of-band domain emission.... 14 5.5 Occupied bandwidth... 5.6 Powerconsumption.. 6 Transmitted signal characteristics.. 16 6.1 Intermodulation (shoulders). 6.2 Modulation error ration (MER). 6.3 Bit error ratio (BER). Equivalent noise degradation 6.4 6.5 Phase noise. 19 Protection against atmospheric discharge.. 7 .20 .20 8 Acoustic noise 9 Safety. 20 Annex A(normative)Eye-height characteristics 21 Annex B(normative)Characteristic frequency .22 Annex C (normative) Frequency drift.. Annex D (normative)Attenuation of the measuring coupler.. .26 AnnexE(normative)Spurious emissions/out-of-bandemissions .28 AnnexF (normative)DVB-T shoulder attenuation measurement Annex G (normative)Modulation error ratio (MER)measurement.. AnnexH(normative)Bit error rate(BER)measurement .38 Bibliography.. 39 62273-1 @ IEC:2007(E) -3- Figure 1-Measuring set-up for output power. 12 Figure 2-Measuring set-u