《ETSI EN-301-357-1-2006.pdf》由会员分享，可在线阅读，更多相关《ETSI EN-301-357-1-2006.pdf（51页珍藏版）》请在三一文库上搜索。
1、 ETSI EN 301 357-1 V1.3.1 (2006-07) European Standard (Telecommunications series) 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 ETSI ETSI EN 301 357-1 V1.3.1 (2006-07) 2 Refe
2、rence REN/ERM-TG17WG3-007-1 Keywords audio, radio, radio MIC, testing ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +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 78
3、03/88 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 one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference ver
4、sion 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 drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of st
5、atus. 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 present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notific
6、ation No 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 2006. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered fo
7、r the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI EN 301 357-1 V1.3.1 (2006-07) 3 Co
8、ntents Intellectual Property Rights7 Foreword.7 Introduction 8 1 Scope9 2 References10 3 Definitions, symbols and abbreviations .11 3.1 Definitions11 3.2 Symbols11 3.3 Abbreviations.12 4 Functional characteristics.12 4.1 Cordless audio12 4.1.1 In-vehicle cordless12 4.1.2 Personal cordless 12 4.1.3 B
9、roadband multi channel systems 12 4.1.4 Band II LPD13 4.2 Consumer radio microphones.13 4.3 In-ear monitoring13 5 General.13 5.1 Presentation of equipment for testing purposes13 5.1.1 Choice of model for performance testing .14 5.1.2 Definitions of alignment and switching ranges.14 5.1.3 Alignment R
10、ange14 5.1.4 Choice of frequencies .14 5.1.5 Testing of single channel equipment 14 5.1.6 Testing of two channel equipment14 5.1.7 Testing of multi-channel equipment (more than two channels)14 5.1.8 Testing of equipment with an external frequency control.15 5.1.9 Testing of equipment with an integra
11、l antenna.15 5.1.9.1 Equipment with a permanent internal RF port15 5.1.9.2 Equipment with a temporary RF port15 5.2 Mechanical and electrical design15 5.2.1 General15 5.2.2 Controls 15 5.2.3 Integral antenna 15 5.2.4 Marking 16 5.3 Interpretation of the measurement results 16 6 Test conditions, powe
12、r sources and ambient conditions16 6.1 Normal and extreme test-conditions.16 6.2 Test power source.16 6.3 Normal test conditions16 6.3.1 Normal temperature and humidity17 6.3.2 Normal test power source voltage.17 6.3.2.1 Mains voltage17 6.3.2.2 Nickel-cadmium cells17 6.3.2.3 Other power sources17 6.
13、4 Extreme test conditions17 6.4.1 Extreme temperatures.17 6.4.1.1 Procedures for tests at extreme temperatures17 6.4.2 Extreme test power source voltages18 6.4.2.1 Mains voltage18 6.4.2.2 Re-chargeable battery power sources18 6.4.2.3 Power sources using other types of batteries.18 ETSI ETSI EN 301 3
14、57-1 V1.3.1 (2006-07) 4 6.4.2.4 Other power sources18 7 General conditions18 7.1 Normal test modulation18 7.2 Test fixture .19 7.3 Test site and general arrangements for radiated measurements20 7.4 Modes of operation of the transmitter 20 7.5 Arrangement for test signals at the input of the transmit
15、ter .20 8 Methods of measurement and limits for transmitter parameters20 8.1 Basic requirements for Band II LPD20 8.2 Methods of measurement and limits for transmitter parameters of Band II LPD.21 8.2.1 Effective radiated power, occupied bandwidth, channel spacing, frequency error, and transmitter t
16、imeout21 8.2.1.1 Definitions.21 8.2.1.2 Test equipment setup.21 8.2.1.3 Method of measurement22 8.2.1.3.1 Test site and general arrangements for radiated measurements.22 8.2.1.3.2 Test modulation.22 8.2.1.3.3 Measurement procedure 22 8.2.1.4 Limits22 8.2.1.5 Measurement uncertainty23 8.2.1.6 Radiate
17、d spurious emissions .23 8.2.1.6.1 Definitions.23 8.2.1.6.2 Measurement procedure 23 8.2.1.6.3 Limits for Band II LPD .23 8.2.1.6.4 Limits for combined equipments.23 8.2.1.6.5 Measurement uncertainty 23 8.3 Frequency error24 8.3.1 Definition24 8.3.2 Method of measurement .24 8.3.3 Limit .24 8.4 Carr
18、ier power24 8.4.1 Definition24 8.4.2 Method of measurement for equipment with integral antenna24 8.4.2.1 Method of measurement under normal test conditions .24 8.4.2.2 Method of measurement under extreme test conditions25 8.4.3 Limit .25 8.5 Channel bandwidth.26 8.5.1 Definition26 8.5.2 Measurement
19、of Necessary Bandwidth (BN) .26 8.5.3 Limits26 8.5.4 Edge of Band Limits.26 8.6 Spurious emissions and cabinet radiation.27 8.6.1 Definitions 28 8.6.2 Method of measuring the effective radiated power.28 8.6.3 Limits28 8.6.4 Measuring receiver .28 8.7 Cordless audio transmitter shutoff29 8.7.1 Defini
20、tion29 8.7.2 Method of measurement .29 8.7.3 Limits29 9 Receiver30 9.1 Spurious emissions and cabinet radiation.30 9.1.1 Definitions 30 9.1.2 Method of measuring the power level in a specified load.30 9.1.3 Method of measuring the effective radiated power of the enclosure30 9.1.4 Method of measuring
21、 the effective radiated power.31 9.1.5 Limits31 10 Measurement uncertainty.31 ETSI ETSI EN 301 357-1 V1.3.1 (2006-07) 5 10.1 Compliance assessment when measurement uncertainty is equal to or less than maximum acceptable uncertainty31 10.2 Compliance assessment when measurement uncertainty is greater
22、 than maximum acceptable uncertainty32 10.3 Maximum allowable measurement uncertainties .32 Annex A (normative): Radiated measurement33 A.1 Test sites and general arrangements for measurements involving the use of radiated fields.33 A.1.1 Anechoic chamber33 A.1.2 Anechoic chamber with a conductive g
23、round plane.34 A.1.3 Open Area Test Site (OATS) .35 A.1.4 Test antenna36 A.1.5 Substitution antenna.37 A.1.6 Measuring antenna .37 A.1.7 Stripline arrangement.37 A.1.7.1 General37 A.1.7.2 Description37 A.1.7.3 Calibration37 A.1.7.4 Mode of use 37 A.2 Guidance on the use of radiation test sites.38 A.
24、2.1 Verification of the test site .38 A.2.2 Preparation of the EUT.38 A.2.3 Power supplies to the EUT.38 A.2.4 Volume control setting for analogue speech tests 38 A.2.5 Range length.39 A.2.6 Site preparation 39 A.3 Coupling of signals.40 A.3.1 General.40 A.3.2 Data Signals40 A.3.3 Speech and analogu
25、e signals40 A.3.3.1 Acoustic coupler description.40 A.3.3.2 Calibration41 A.4 Standard test position.41 A.5 Test fixture.41 A.5.1 Description.41 A.5.2 Calibration42 A.5.3 Mode of use43 Annex B (normative): Measurement of Necessary Bandwidth (BN) 44 Annex C (informative): Receiver parameters45 C.1 Bl
26、ocking or desensitization45 C.1.1 Definition .45 C.1.2 Method of measurement.45 C.1.2.1 Measurement procedure45 C.1.2.2 Definitions 45 C.1.2.3 Limits for applications below 1 GHz46 C.1.2.4 Limits for applications above 1 GHz46 C.2 Frequency mask for the receiver part.46 C.2.1 Definition .46 C.2.2 Me
27、thod of measurement.46 C.2.3 Typical values for receivers47 C.2.3.1 Typical values for receivers with analogue modulation47 C.2.3.2 Typical values for receivers with digital modulation47 Annex D (informative): Derivation of radiated spurious emissions limit for Band II LPD .48 Annex E (informative):
28、 Justifications for field strength measurement.49 ETSI ETSI EN 301 357-1 V1.3.1 (2006-07) 6 Annex F (informative): Bibliography.50 History51 ETSI ETSI EN 301 357-1 V1.3.1 (2006-07) 7 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared t
29、o 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 notified to ETSI in respect of ETSI standards“, which is av
30、ailable 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 guarantee can be given as to the existence of other IPRs not refere
31、nced 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 European Standard (Telecommunications series) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (
32、ERM). Every EN prepared by ETSI is a voluntary standard. The present document may contain text concerning conformance testing of the equipment to which it relates. This text should be considered as guidance only and does not make the present document mandatory. Annex A provides normative specificati
33、ons concerning radiated measurements. Annex B provides a graphic representation of the equipment and frequencies for the testing of single and multi frequency equipment. Annex C provides informative parameters on the receiver part, which are intended to give guidance to manufacturers. Annex D provid
34、es information on the derivation of radiated emissions limits for Band II LPD. Annex E provides a justification for field strenght limis for Band II LPD The present document is part 1 of a multi-part deliverable covering cordless audio devices in the range 25 MHz to 2 000 MHz; as identified below: P
35、art 1: “Technical characteristics and test methods“; Part 2: “Harmonized EN covering essential requirements of article 3.2 of the R Band II LPD (low power devices) in the 87,5 MHz to 108 MHz range (Broadcasting Band II); and other devices and frequency bands defined within REC 70-03 or National regu
36、lation. Consumer radio microphones and in ear monitoring equipment may be tested to either EN 300 422 4 for equipment with maximum occupied bandwidth 200 kHz with due consideration of power and operating frequency. ETSI ETSI EN 301 357-1 V1.3.1 (2006-07) 9 1 Scope The present document covers the min
37、imum characteristics considered necessary in order to make the best use of the available frequencies. It does not necessarily include all the characteristics that may be required by a user, nor does it necessarily represent the optimum performance achievable. Cordless audio devices covered within th
38、e present document are considered by definition short-range devices, the power limits for frequency bands will be found in the current version of CEPT/ERC/REC 70-03, annex 13 (or national regulations). Stereo equipment can be designed for required channel bandwidths of 200 kHz or less, however consu
39、mer wideband (multi channel) audio equipment and stereo equipment using e.g. Zenith-GE pilot tone systems or digital modulation may need wider bandwidths as defined in the present document. The present document applies to cordless audio consumer radio microphones, in ear monitoring equipment using e
40、ither 300 kHz bandwidth analogue modulation or: 300 kHz, 600 kHz, 1 200 kHz digital FDMA modulation; and Band II LPD (low power devices) using 200 kHz bandwidth and analogue modulation. The frequency bands for this equipment may differ from country to country as specified in their national regulatio
41、ns. All equipment is intended to be used with integral antennas. Consumer audio equipment intended for audio and voice operating below 50 MHz and using narrow band modulation are considered and tested according to EN 300 220 6. Electromagnetic Compatibility (EMC) requirements are covered by EN 301 4
42、89-9 3. The types of equipment covered by the present document are as follows: - cordless headphones; - cordless loudspeakers; - consumer radio microphones; - in-ear monitoring; - in-vehicle cordless; - personal cordless; - broadband multi channel audio systems; - Band II LPD. ETSI ETSI EN 301 357-1
43、 V1.3.1 (2006-07) 10 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specifi
44、c reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. 1 ITU-R Recommendation BS.559-2: “Objective measurem
45、ent of radio-frequency protection ratios in LF, MF and HF broadcasting“. 2 IEC 60244-13: “Methods of measurement for radio transmitters - Part 13: Performance characteristics for FM sound broadcasting“. 3 ETSI EN 301 489-9: “Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagn
46、etic Compatibility (EMC) standard for radio equipment and services; Part 9: Specific conditions for wireless microphones, similar Radio Frequency (RF) audio link equipment, cordless audio and in-ear monitoring devices“. 4 ETSI EN 300 422: “Electromagnetic compatibility and Radio spectrum Matters (ER
47、M); Technical characteristics and test methods for wireless microphones in the 25 MHz to 3 GHz frequency range“. 5 ETSI TR 100 027: “ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Methods of measurement for private mobile radio equipment“. 6 ETSI EN 300 220 (all parts): “Electromagn
48、etic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Radio equipment to be used in the 25 MHz to 1 000 MHz frequency range with power levels ranging up to 500 mW“. 7 ETSI TR 102 273 (all parts): “Electromagnetic compatibility and Radio spectrum Matters (ERM); Improvement o
49、n Radiated Methods of Measurement (using test site) and evaluation of the corresponding measurement uncertainties“. 8 ANSI C63.5: “American National Standard for Electromagnetic Compatibility-Radiated Emission Measurements in Electromagnetic Interference (EMI) Control-Calibration of Antennas (9 kHz to 40 GHz)“. 9 IEC 60489-3: “Methods of measurement for radio equipment used in the mobile services. Part 3: Receivers for A3E or F3E emissions“. 10 ETSI EN 301 489-1: “Electromagnetic compatibility and Radio spectrum Matters (ERM); E