1、 ETSI EN 301 489-9 V1.4.1 (2007-11)Harmonized European Standard (Telecommunications series) Electromagnetic compatibilityand Radio spectrum Matters (ERM);ElectroMagnetic Compatibility (EMC)standard for radio equipment and services;Part 9: Specific conditions for wireless microphones,similar Radio Fr
2、equency (RF) audio link equipment,cordless audio and in-ear monitoring devicesETSI ETSI EN 301 489-9 V1.4.1 (2007-11) 2 Reference REN/ERM-EMC-250-9 Keywords audio, digital, EMC, radio, radio mic, regulation ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 F
3、ax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than
4、 one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network
5、drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the prese
6、nt document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. Europe
7、an Telecommunications Standards Institute 2007. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTMand the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark
8、 of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI EN 301 489-9 V1.4.1 (2007-11) 3 Contents Intellectual Property Rights5 Foreword.5 1 Scope 6 2 References 6 3 Definitions and abbreviations.7 3.1 Definitions7 3.2 Abbreviations .7 4 Test conditions .
9、8 4.1 General .8 4.2 Arrangements for test signals .8 4.2.1 Arrangements for test signals at the input of transmitters.8 4.2.2 Arrangements for test signals at the output of transmitters.9 4.2.3 Arrangements for test signals at the input of receivers .9 4.2.4 Arrangements for test signals at the out
10、put of receivers .11 4.2.5 Arrangements for testing transmitter and receiver together (as a system) 11 4.3 Exclusion bands11 4.3.1 Receiver and receivers of transceivers exclusion band.11 4.3.2 Transmitter exclusion band.11 4.4 Narrow band responses of receivers.12 4.5 Normal test modulation12 4.5.1
11、 Transmitters 12 4.5.2 Receivers 12 5 Performance assessment.12 5.1 General .12 5.2 Equipment which can provide a continuous communications link 13 5.3 Equipment which does not provide a continuous communications link.13 5.4 Ancillary equipment .13 5.5 Equipment classification 13 6 Performance crite
12、ria .13 6.1 General performance criteria14 6.2 Performance criteria for equipment which provides a continuous communication link 14 6.2.1 Performance criteria for Continuous phenomena applied to Transmitters (CT) and Receivers (CR).14 6.2.2 Performance criteria for Transient phenomena applied to Tra
13、nsmitters (TT) and Receivers (TR) 15 6.3 Performance criteria for equipment which does not provide a continuous communication link15 6.4 Performance criteria for ancillary equipment tested on a stand alone basis .16 7 Applicability overview.16 7.1 Emission.16 7.1.1 General16 7.1.2 Special conditions
14、.16 7.2 Immunity 16 7.2.1 General16 7.2.2 Special conditions.16 Annex A (informative): Examples of wireless microphones, cordless audio, in-ear monitoring and similar RF audio link equipment within the scope of the present document 17 A.1 Wireless radio microphone equipment.17 A.2 Cordless audio equ
15、ipment 17 A.3 RF audio link equipment covered within the scope of the present document18 ETSI ETSI EN 301 489-9 V1.4.1 (2007-11) 4 A.4 Low Power Band II Transmitters .18 Annex B (normative): Acoustic stimulation of wireless radio microphones and similar radio communications link equipment, condition
16、s for the test set up and configuration 19 B.1 General .19 B.2 Audio excitation .19 Annex C (informative): The EN title in the official languages .20 Annex D (informative): Bibliography.22 History 23 ETSI ETSI EN 301 489-9 V1.4.1 (2007-11) 5 Intellectual Property Rights IPRs essential or potentially
17、 essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs
18、notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarante
19、e can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Harmonized European Standard (Telecommunications series) has been produced by ETSI Technica
20、l Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). The present document has been produced by ETSI in response to a mandate from the European Commission issued under Council Directive 98/34/EC (as amended) laying down a procedure for the provision of information in the field
21、of technical standards and regulations. The present document is intended to become a Harmonized Standard, the reference of which will be published in the Official Journal of the European Communities referencing Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radi
22、o equipment and telecommunications terminal equipment and the mutual recognition of their conformity (“the R ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 1: Common technical requirements“. 2 ETSI EN 300 422-1 (V1.2.2): “Electromagnetic compatibility and Radio s
23、pectrum Matters (ERM); Wireless microphones in the 25 MHz to 3 GHz frequency range; Part 1: Technical characteristics and test methods“. 3 ETSI EN 300 454-1 (V1.1.2): “Electromagnetic compatibility and Radio spectrum Matters (ERM); Wide band audio links; Part 1: Technical characteristics and test me
24、thods“. ETSI ETSI EN 301 489-9 V1.4.1 (2007-11) 7 4 ETSI EN 301 357-1 (V1.3.1): “Electromagnetic compatibility and Radio spectrum Matters (ERM); Cordless audio devices in the range 25 MHz to 2 000 MHz; Part 1: Technical characteristics and test methods“. 5 ETSI EN 301 840-1 (V1.1.1): “Electromagneti
25、c compatibility and Radio spectrum Matters (ERM); Digital radio microphones operating in the CEPT Harmonized band 1 785 MHz to 1 800 MHz; Part 1: Technical characteristics and methods of measurement“. 6 CEPT/ERC/REC 70-03 (05-2007): “Relating to the use of Short Range Devices (SRD)“. 3 Definitions a
26、nd abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in EN 301 489-1 1, clause 3 and the following apply: companding: method of audio processing that compresses the audio dynamic range before transmission and then provides matching expansion of t
27、he signal in the receiver NOTE: The method is used to improve the audio performance in the RF link. integral antenna: antenna designed to be connected to the equipment without the use of a 50 external connector and considered to be part of the equipment NOTE: An integral antenna may be fitted intern
28、ally or externally to the equipment. low power band 2 transmitters: Band II LPD (low power devices) up to 200 kHz bandwidth and analogue modulation switching range: maximum frequency range over which the receiver or transmitter can be operated without reprogramming or realignment vehicle battery: ba
29、ttery used for the primary operation of the vehicle, i.e. the ignition or starting of the vehicle 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: CR Continuous phenomena applied to Receivers CT Continuous phenomena applied to Transmitters EMC Electromag
30、netic Compatibilitye.r.p. effective radiated power EUT Equipment Under Test LPD Low Power Device PMR Professional Mobile Radio RF Radio Frequency SINAD Ratio of (Signal + Noise + Distortion) to (Noise + Distortion) TR Transient phenomena applied to Receivers TT Transient phenomena applied to Transmi
31、tters ETSI ETSI EN 301 489-9 V1.4.1 (2007-11) 8 4 Test conditions For the purposes of the present document, the test conditions of EN 301 489-1 1, clause 4 shall apply as appropriate. Further product related test conditions for wireless microphones, similar RF audio link equipment, cordless audio, i
32、n-ear monitoring equipment and ancillary equipment are specified in the present document. 4.1 General For emission and immunity tests the test modulation, test arrangements, etc., as specified in the present document, clauses 4.1 to 4.5 shall apply. For the purpose of EMC tests, body worn or hand he
33、ld transmitters shall be mounted on a non-conductive stand at least 0,8 m from any conducting surface. The EUT and any other equipment required for the performance assessment before, during, and after the conclusion of the tests, shall be connected in a manner typical of normal intended use. Wheneve
34、r the EUT is provided with a detachable antenna, it shall be tested with the antenna fitted in a manner typical of normal intended use. For immunity tests, if the equipment is of a category which permits it, a communications link shall be established at the start of the test and maintained during th
35、e test. The test conditions shall be as follows: - the transmitter shall be operated at its normal maximum RF output power modulated with a suitable modulation signal (see clause 4.5.1); - for stand alone receivers or receivers of transceivers operating in simplex mode, the wanted RF input signal, c
36、oupled to the receiver, shall be modulated with a suitable modulation signal (see clause 4.5.2); - for duplex transceivers, the wanted RF input signal, coupled to the receiver, shall be modulated with a suitable modulation signal (see clause 4.5.2). The transmitter shall be operated at its normal ma
37、ximum output power, modulated with the test modulation signal, coupled to the transmitter from the output of the receiver (repeater mode); - digitally modulated systems shall use a defined interface to convert between analogue and digital domain (and vice versa). 4.2 Arrangements for test signals Th
38、e provisions of EN 301 489-1 1, clause 4.2 shall apply. 4.2.1 Arrangements for test signals at the input of transmitters The provisions of EN 301 489-1 1, clause 4.2.1 shall apply with the following modifications. For transmitters designed to operate from an integral or dedicated microphone (see fig
39、ure 2) it shall be permissible to use an acoustic coupling device to inject the normal test modulation signal (see figure 3). The acoustic coupling device may be provided by the manufacturer. For equipment which can use a variety of audio capsules, the manufacturer shall declare the type of capsule,
40、 e.g. dynamic, electret, or condenser, to be provided with the system. Only one type of capsule shall be tested. All other capsules shall be deemed as compliant. The transmitter shall be tested at its most sensitive input with the test capsule. For equipment not designed to use an integral or dedica
41、ted microphone, the test signal shall be fed in electrical form to the most sensitive input socket (see figure 1) using maximum length cables as normally supplied by the manufacturer with the equipment. The modulation signal used for the tests shall be a 1 kHz sine wave tone at a level declared by t
42、he manufacturer to obtain 100 % audio modulation. ETSI ETSI EN 301 489-9 V1.4.1 (2007-11) 9 The manufacturer may provide a suitable companion receiver that can be used to set up a communications link. In this case a suitable attenuator in the companion receiver input may be necessary, see annex B fo
43、r further details. In the case of systems with a digital audio input and outputs this test signal has to be presented via a suitable test fixture converting the analogue signal to the digital domain and vice-versa. The applicant shall provide details on the interface and test fixture used for the te
44、st. 4.2.2 Arrangements for test signals at the output of transmitters The provisions of EN 301 489-1 1, clause 4.2.2 shall apply. 4.2.3 Arrangements for test signals at the input of receivers The provisions of EN 301 489-1 1, clause 4.2.3 shall apply with the following modifications. The wanted RF i
45、nput signal to the receiver should be modulated with a suitable signal corresponding to 100 % audio modulation (maximum channel loading). If it is not appropriate to provide a modulated RF signal to the receiver, the test may be performed using an unmodulated wanted RF input signal. The level and ma
46、ke up of the wanted RF input signal shall be declared by the manufacturer. The level chosen shall be set to a value 60 dB above the threshold sensitivity of the receiver. Other systems than analogue radio microphones can define another level more in line with the application. The level used shall be
47、 recorded in the test report. The manufacturer may provide a suitable companion transmitter that can be used to set up a communications link. In this case a suitable attenuator in the EUT input may be necessary. RF input Audio output Receiver Audio test equipment Absorber lined test chamber Audio in
48、put Output Interfering signal Wanted signal EUT Generator Figure 1: Test configuration for integral antenna; transmitter operation - electrical input ETSI ETSI EN 301 489-9 V1.4.1 (2007-11) 10RF input Audio output Receiver Audio test equipment Absorber lined test chamber Audio input Output Interferi
49、ng signal Wanted signal EUT Transducer Acoustic tube (see figure 3) Generator Figure 2: Test configuration for integral antenna; transmitter operation - acoustic input Acoustic tubeSuggested minimum length 1 mFunnels (optional)E.U.T.TransducerPoweramplifier(optional)AudiosignalgeneratorFigure 3: Example of acoustic coupling jig RF output Audio input Audio test equipment Absorber lined test chamber Audio Input output Interfering signal Wanted signal EUT RF generator Generator NOTE: The RF generator may be a companion transmitter sited inside the test chamb
