ETSI EN 301 357 V1.1.1 (1999-04)

ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Technical characteristics and test methods for analogue cordless wideband audio devices using integral antennas operating in the CEPT recommended 863 MHz to 865 MHz frequency range

DEN/ERM-RP08-0307

Elektromagnetna združljivost in zadeve v zvezi z radijskim spektrom (ERM) – Tehnične karakteristike in preskusne metode za analogne brezvrvične širokopasovne avdio naprave, ki uporabljajo vgrajene antene in delujejo v frekvenčnem območju 863 MHz do 865 MHz, ki ga je priporočila konferenca CEPT

General Information

• Status: Published
• Publication Date: 15-Jul-1999
• Technical Committee: ERM RP08 - Land Mobile Radio C
• Current Stage: 12 - Completion
• Due Date: 02-Jul-1999
• Completion Date: 16-Jul-1999
• Ref Project: SIST EN 301 357 V1.1.1:2003 - ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Technical characteristics and test methods for analogue cordless wideband audio devices using integral antennas operating in the CEPT recommended 863 MHz to 865 MHz frequency range

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.QHElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Technical characteristics and test methods for analogue cordless wideband audio devices using integral antennas operating in the CEPT recommended 863 MHz to 865 MHz frequency range33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.99Druga oprema za radijske komunikacijeOther equipment for radiocommunicationsICS:Ta slovenski standard je istoveten z:EN 301 357 Version 1.1.1SIST EN 301 357 V1.1.1:2003en01-december-2003SIST EN 301 357 V1.1.1:2003SLOVENSKI
STANDARD



SIST EN 301 357 V1.1.1:2003



ETSI EN 301 357 V1.1.1 (1999-07)European Standard (Telecommunications series)Electromagnetic compatibilityand Radio spectrum Matters (ERM);Technical characteristics and test methodsfor analogue cordless wideband audio devicesusing integral antennas operating in the CEPT recommended863 MHz to 865 MHz frequency rangeSIST EN 301 357 V1.1.1:2003



ETSIETSI EN 301 357 V1.1.1 (1999-07)2ReferenceDEN/ERM-RP08-0307 (ckc00ico.PDF)Keywordsradio, testingETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: [phone]
Fax: [phone]Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/[e-mail] copies of this ETSI deliverablecan be downloaded fromhttp://www.etsi.orgIf you find errors in the present document, send yourcomment to: [e-mail] NotificationNo part may be reproduced except as authorized by written permission.The copyright and the foregoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1999.All rights reserved.SIST EN 301 357 V1.1.1:2003



ETSIETSI EN 301 357 V1.1.1 (1999-07)3ContentsIntellectual Property Rights.6Foreword.6Introduction.61Scope.82References.93Definitions, symbols and abbreviations.93.1Definitions.93.2Symbols.103.3Abbreviations.104Functional characteristics.104.1Cordless wideband audio.104.2In-ear monitoring.114.3In-vehicle cordless.114.4Personal cordless.115General.115.1Presentation of equipment for testing purposes.115.1.1Choice of model for type testing.115.1.2Definitions of alignment and switching ranges.125.1.3 Alignment Range.125.1.4Choice of frequencies.125.1.5Testing of single channel equipment.125.1.6Testing of two channel equipment.125.1.7Testing of multi-channel equipment (more than two channels).125.1.8Testing of equipment with an external frequency rotary control.135.1.9Testing of equipment with an integral antenna.135.1.9.1Equipment with a permanent internal RF port.135.1.9.2Equipment with a temporary RF port.135.2Mechanical and electrical design.135.2.1General.135.2.2Controls.135.2.3Integral antenna.135.2.4Marking.145.2.4.1Equipment identification.145.2.4.2Regulatory marking.145.3Interpretation of the measurement results.146Test conditions, power sources and ambient conditions.146.1Normal and extreme test-conditions.146.2Test power source.146.3Normal test conditions.156.3.1Normal temperature and humidity.156.3.2Normal test power source voltage.156.3.2.1Mains voltage.156.3.2.2Nickel-cadmium cells.156.3.2.3Other power sources.156.4Extreme test conditions.156.4.1Extreme temperatures.156.4.1.1Procedures for tests at extreme temperatures.156.4.2Extreme test power source voltages.166.4.2.1Mains voltage.166.4.2.2Re-chargeable battery power sources.166.4.2.3Power sources using other types of batteries.16SIST EN 301 357 V1.1.1:2003



ETSIETSI EN 301 357 V1.1.1 (1999-07)46.4.2.4Other power sources.167General conditions.177.1Normal test modulation.177.2Test fixture.187.3Test site and general arrangements for radiated measurements.187.4Modes of operation of the transmitter.187.5Arrangement for test signals at the input of the transmitter.198Methods of measurement and limits for transmitter parameters.198.1Frequency error.198.1.1Definition.198.1.2Method of measurement.198.1.3Limit.198.2Carrier power.198.2.1Definition.198.2.2Method of measurement for equipment with integral antenna.208.2.2.1Method of measurement under normal test conditions.208.2.2.2Method of measurement under extreme test conditions.208.2.3Limit.208.3 Channel bandwidth.218.3.1Definition.218.3.2Measurement of Necessary Bandwidth (BN).218.3.3Limits.218.3.4Edge of Band Limits.218.4Spurious emissions.228.4.1Definitions.228.4.2Method of measuring the effective radiated power.228.4.3Limits.228.4.4Measuring receiver.238.5 Transmitter shutoff.238.5.1Definition.238.5.2Method of measurement.238.5.3Limits.239Receiver.249.1Spurious emissions.249.1.1Definitions.249.1.2Method of measuring the power level in a specified load.249.1.3Method of measuring the effective radiated power of the enclosure.249.1.4Method of measuring the effective radiated power.259.1.5Limits.2510Measurement uncertainty.25Annex A (normative):Radiated measurement.26A.1Test sites and general arrangements for measurements involving the use of radiated fields.26A.1.1Outdoor test site.26A.1.1.1Test support for body worn equipment.26A.1.1.2Standard position.27A.1.2Test antenna.27A.1.3Substitution antenna.27A.1.4Optional additional indoor site.28A.2Guidance on the use of radiation test sites.28A.2.1Measuring distance.29A.2.2Test antenna.29A.2.3Substitution antenna.29A.2.4Artificial antenna.29A.2.5Auxiliary cables.29SIST EN 301 357 V1.1.1:2003



ETSIETSI EN 301 357 V1.1.1 (1999-07)5A.3Further optional alternative indoor test site using an anechoic chamber.29A.3.1Example of the construction of a shielded anechoic chamber.30A.3.2Influence of parasitic reflections in anechoic chambers.30A.3.3Calibration of the shielded anechoic chamber.31Bibliography.33History.34SIST EN 301 357 V1.1.1:2003



ETSIETSI EN 301 357 V1.1.1 (1999-07)6Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respectof ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on theETSI Web server (http://www.etsi.org/ipr).Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guaranteecan be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by ETSI Technical CommitteeElectromagnetic compatibility and Radio spectrum Matters (ERM).Every EN prepared by ETSI is a voluntary standard. The present document may contain text concerning conformancetesting of the equipment to which it relates. This text should be considered as guidance only and does not make thepresent document mandatory.Annex A provides normative specifications concerning radiated measurements.Annex B provides a graphic representation of the equipment and frequencies for the testing of single andmulti frequency equipment.National transposition datesDate of adoption of this EN:25 June 1999Date of latest announcement of this EN (doa):30 September 1999Date of latest publication of new National Standardor endorsement of this EN (dop/e):31 March 2000Date of withdrawal of any conflicting National Standard (dow):31 March 2000IntroductionIn preparing the present document, much attention has been given to assure a low interference probability, while at thesame time allowing a maximum flexibility and service to the end-user.The present document provides the necessary parameters for equipment to obtain common approval throughout Europe.Common technical specifications and harmonized frequency allocations are expected to reduce the present problems ofinterference and illegal use.The present document is a type-testing standard based on spectrum utilization parameters and does not includeperformance characteristics that may be required by the user or requirements for interfacing equipment.The present document is intended to specify the minimum performance and the methods of measurement of, widebandcordless audio equipment as specified in the scope. In-ear monitoring equipment may be tested to either EN 300 422 [8]for equipment with maximum occupied bandwidth < 200 kHz or the present document for equipment with maximumoccupied bandwidth < 300 kHz with due consideration of power and operating frequency.SIST EN 301 357 V1.1.1:2003



ETSIETSI EN 301 357 V1.1.1 (1999-07)7Type test measurements should be performed in one of the accredited test laboratories, accepted by the various nationalregulatory authorities in order to grant type approval, provided the national regulatory requirements are met. This is incompliance with CEPT/ERC/REC 01-06 [1] and CEPT/ERC/DEC (97) 10 [2].In addition, national administrations may accept a "certificate of conformity" based on a type test report. If equipmentavailable on the market is required to be checked, it should be tested in accordance with the methods of measurementspecified in the present document.SIST EN 301 357 V1.1.1:2003



ETSIETSI EN 301 357 V1.1.1 (1999-07)81ScopeThe present document covers the minimum characteristics considered necessary in order to make the best use of theavailable frequencies. It does not necessarily include all the characteristics that may be required by a user, nor does itnecessarily represent the optimum performance achievable.The present document applies to wideband cordless audio and in-ear monitoring equipment operating in the CEPTrecommended band 863 MHz to 865 MHz using analogue frequency modulation. In some countries this equipment maybe used in other frequency bands as specified in their national regulations.The present document does not apply to wideband cordless audio or in-ear monitoring systems employing digitalmodulation, Time Division Multiple Access (TDMA), frequency hopping and spread spectrum or similar forms ofmodulation.EN 300 422 [8] applies to consumer radio microphones operating in the CEPT recommended band 863 MHz to 865MHz with a maximum power level of 10mW.Electromagnetic Compatibility (EMC) requirements are covered by ETS 300 445 [7].The present document may be used by accredited test laboratories for type testing of the equipment. The performance ofthe equipment submitted for type testing should be representative of the performance of the corresponding productionmodels.The present document contains instructions for the presentation of equipment for type testing purposes.Power limits recommended in the present document have been chosen to allow maximum simultaneous re-usage offrequency allocations. National regulations on power output may apply up to the limits quoted in table 1.Table 1Equipmentmax effective radiated power (erp)Wideband cordless audio10 mWIn-ear monitoring10 mWIn-vehicle cordless2 mWPersonal cordless1 mWThe types of equipment covered by the present document are as follows:-cordless headphones;-cordless loudspeakers;-in-ear monitoring;-in-vehicle cordless;-personal cordless.SIST EN 301 357 V1.1.1:2003



ETSIETSI EN 301 357 V1.1.1 (1999-07)92ReferencesThe following documents contain provisions which, through reference in this text, constitute provisions of the presentdocument.· References are either specific (identified by date of publication, edition number, version number, etc.) ornon-specific.· For a specific reference, subsequent revisions do not apply.· For a non-specific reference, the latest version applies.· A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the samenumber.[1]CEPT/ERC/REC 01-06: "Procedure for mutual recognition of type testing and type approval forradio equipment".[2]CEPT/ERC/DEC (97) 10: "ERC Decision of 30 June 1997 on the mutual recognition ofconformity assessment procedures including marking of radio equipment and radio terminalequipment".[3]ITU-R Recommendation BS.559-2: "Objective measurement of radio-frequency protection ratiosin LF, MF and HF broadcasting".[4]IEC 60244: "Methods of measurement for radio transmitters".[5]ETR 028: "Radio Equipment and Systems (RES); Uncertainties in the measurement of mobileradio equipment characteristics".[6]CEPT/ERC/REC 70-03: "Relating to the use of Short Range Devices (SRD)".[7]ETS 300 445 (including Amendment 1): "Radio Equipment and Systems (RES); ElectroMagneticCompatibility (EMC) standard for wireless microphones and similar Radio Frequency (RF) audiolink equipment".[8]EN 300 422 (V1.2): "Electromagnetic compatibility and Radio spectrum Matters (ERM);Technical characteristics and test methods for wireless microphones in the 25 MHz to 3 GHzfrequency range".3Definitions, symbols and abbreviations3.1DefinitionsFor the purposes of the present document, the following terms and definitions apply:integral antenna: permanent fixed antenna, which may be built-in, designed as an indispensable part of the equipmentartificial antenna: tuned reduced-radiating dummy load equal to the nominal impedance specified by the applicantradiated measurements: measurements that involve the absolute measurement of a radiated electromagnetic fieldchannel bandwidth: frequency band of defined width including safety margin for operation on adjacent channels,located symmetrically around the carrier frequencyport: any connection point on or within the Equipment Under Test (EUT) intended for the connection of cables to orfrom that equipmentSIST EN 301 357 V1.1.1:2003



ETSIETSI EN 301 357 V1.1.1 (1999-07)103.2SymbolsFor the purposes of the present document, the following symbols apply:lwavelength in metresµFmicroFaradµWmicroWattdBcdB relative to the carrier levelEfield strengthEoreference field strength (see annex A)fccarrier frequencyfooperating frequencyGHzGigaHertzkHzkiloHertzMHzMegaHertzmWmilliWattnWnanoWattRdistance (see annex A)Roreference distance (see annex A)3.3AbbreviationsFor the purposes of the present document, the following abbreviations apply:acalternating currentBChannel BandwidthBNNecessary Bandwidthdcdirect currenterpeffective radiated powerEUTEquipment Under TestHFHigh FrequencyLFLow FrequencyMFMedium FrequencyRBWResolution BandWidthRFRadio FrequencySRDShort Range DevicesTDMATime Division Multiple AccessTxTransmitterVBWVideo BandWidth4Functional characteristics4.1Cordless wideband audioCordless wideband audio equipment encompasses radio linked headphones and loudspeakers. The transmitters may beinstalled in a building, fitted in a vehicle or body worn The term cordless is also used to describe infra red and other nonRF "wireless" links, but in the context of the present document It is restricted to RF operating systems only. Stereoequipment can be designed for required channel bandwidths of 200 kHz or less but only with a high cost penalty,however consumer wideband (multichannel) audio equipment and stereo equipment using Zenith-GE pilot tone systemsneed to declare wider bandwidths as defined in this part of the present document.Other equipment that may be connected to cordless audio equipment shall fulfil the standards applicable to thatequipment (if any).SIST EN 301 357 V1.1.1:2003



ETSIETSI EN 301 357 V1.1.1 (1999-07)114.2In-ear monitoringIn-ear monitoring equipment is used by stage and studio performers to receive personal fold back (monitoring) of theperformance. This can be just their own voice or a complex mix of sources.Other equipment that may be connected to in-ear monitoring equipment shall fulfil the standards applicable to thatequipment (if any).4.3In-vehicle cordlessIn vehicle systems are used for private listening in automobiles and other methods of transport (where permitted).4.4Personal cordlessPersonal cordless transmitters are to enable the body worn personal stereo equipment to be wire free.5General5.1Presentation of equipment for testing purposesEach equipment submitted for type testing shall fulfil the requirements of the present document on all channels overwhich it is intended to operate.The applicant shall complete the appropriate application form when submitting equipment for type testing.The applicant shall state the channel bandwidth(s) within which the equipment is designed to operate.The applicant shall also supply all relevant interface information to allow:-direct current (dc) power connection;-audio connection;-the deviation limiting of the transmitter; and-the setting of
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