Cordless audio devices in the range 25 MHz to 2 000 MHz - Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU

The present document specifies technical characteristics and methods of measurements for cordless audio devices in the
range 25 MHz to 2 000 MHz, including:
• cordless headphones;
• cordless loudspeakers;
• consumer radio microphones in the range 863 MHz to 865 MHz;
• in-ear monitoring equipment using either 300 kHz bandwidth analogue modulation or 300 kHz, 600 kHz,
1 200 kHz digital FDMA modulation in the range 863 MHz to 865 MHz;
• in-vehicle cordless;
• personal cordless;
• broadband multi channel audio systems;
• Band II LPD (low power devices) in the 87,5 MHz to 108 MHz range (Broadcasting Band II) using up to
200 kHz bandwidth and analogue modulation;
• and other devices and frequency bands defined within CEPT/ERC/REC 70-03 [i.2], European or National
regulation.
NOTE 1: The frequency bands for this equipment may differ from country to country as specified in their national
regulations. All equipment is intended to be used with integral antennas.

Brezvrvične avdio naprave za frekvenčno območje od 25 MHz do 2000 MHz - Harmonizirani standard, ki zajema bistvene zahteve člena 3.2 direktive 2014/53/EU

Ta dokument določa tehnične lastnosti in merilne metode za brezvrvične avdio naprave za frekvenčno območje od 25–2000 MHz, vključno s/z:
• brezvrvičnimi slušalkami;
• brezvrvičnimi zvočniki;
• potrošniškimi radijskimi mikrofoni v območju 863–865 MHz;
• slušno opremo za spremljanje, ki uporablja 300 kHz analogno modulacijo ali 300 kHz, 600 kHz,
1200 kHz digitalno modulacijo FDMA v območju 863–865 MHz;
• brezvrvičnimi napravami v vozilih;
• osebnimi brezvrvičnimi napravami;
• širokopasovnimi večkanalnimi avdio sistemi;
• napravami majhne moči (LPD) II. pasu v območju 87,5–108 MHz (radiodifuzijski pas II), ki uporabljajo pasovno širino do 200 kHz in analogno modulacijo;
• drugimi napravami in frekvenčnimi pasovi, ki so določeni v CEPT/ERC/REC 70-03 [i.2], evropskih ali nacionalnih predpisih.
OPOMBA 1: Frekvenčni pasovi za to opremo se lahko razlikujejo od države do države, kot je določeno v nacionalnih predpisih. Vsa oprema je namenjena uporabi z vgrajenimi antenami.

General Information

Status
Published
Public Enquiry End Date
31-May-2017
Publication Date
07-Aug-2017
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
19-Jun-2017
Due Date
24-Aug-2017
Completion Date
08-Aug-2017

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Cordless audio devices in the range 25 MHz to 2 000 MHz - Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU33.060.99Druga oprema za radijske komunikacijeOther equipment for radiocommunicationsICS:Ta slovenski standard je istoveten z:ETSI EN 301 357 V2.1.1 (2017-06)SIST EN 301 357 V2.1.1:2017en01-september-2017SIST EN 301 357 V2.1.1:2017SLOVENSKI

STANDARD
SIST EN 301 357 V2.1.1:2017

ETSI EN 301 357 V2.1.1 (2017-06) Cordless audio devices in the range 25 MHz to 2 000 MHz; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU

HARMONISED EUROPEAN STANDARD SIST EN 301 357 V2.1.1:2017
ETSI ETSI EN 301 357 V2.1.1 (2017-06) 2

Reference REN/ERM-TG17-19-2 Keywords audio, harmonised standard, 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 à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88

Important notice The present document can be downloaded from: http://www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (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 status. Information on the current status of this and other ETSI documents is available at https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comment to one of the following services: https://portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2017. All rights reserved.

DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association. SIST EN 301 357 V2.1.1:2017

ETSI ETSI EN 301 357 V2.1.1 (2017-06) 3 Contents Intellectual Property Rights ................................................................................................................................ 7 Foreword ............................................................................................................................................................. 7 Modal verbs terminology .................................................................................................................................... 7 Introduction ........................................................................................................................................................ 7 1 Scope ........................................................................................................................................................ 8 2 References ................................................................................................................................................ 8 2.1 Normative references ......................................................................................................................................... 8 2.2 Informative references ........................................................................................................................................ 9 3 Definitions, symbols and abbreviations ................................................................................................. 10 3.1 Definitions ........................................................................................................................................................ 10 3.2 Symbols ............................................................................................................................................................ 11 3.3 Abbreviations ................................................................................................................................................... 11 4 Technical requirements specifications ................................................................................................... 12 4.0 General ............................................................................................................................................................. 12 4.1 Cordless audio .................................................................................................................................................. 12 4.1.1 In-vehicle cordless ...................................................................................................................................... 12 4.1.2 Personal cordless ........................................................................................................................................ 12 4.1.3 Broadband multi channel audio systems ..................................................................................................... 12 4.1.4 Band II LPD ................................................................................................................................................ 12 4.2 Consumer radio microphones ........................................................................................................................... 12 4.3 In-ear monitoring .............................................................................................................................................. 12 4.4 Environmental profile ....................................................................................................................................... 12 5 Testing for compliance with technical requirements .............................................................................. 13 5.1 Presentation of equipment for testing purposes ................................................................................................ 13 5.1.1 Introduction................................................................................................................................................. 13 5.1.2 Choice of model for performance testing ................................................................................................... 13 5.1.3 Definitions of alignment and switching ranges ........................................................................................... 13 5.1.4 Alignment Range ........................................................................................................................................ 14 5.1.5 Choice of frequencies ................................................................................................................................. 14 5.1.5.0 General .................................................................................................................................................. 14 5.1.5.1 Testing of single channel equipment ..................................................................................................... 14 5.1.5.2 Testing of two channel equipment ........................................................................................................ 14 5.1.5.3 Testing of multi-channel equipment (more than two channels) ............................................................ 14 5.1.6 Testing of equipment with an external frequency control ........................................................................... 14 5.1.7 Testing of equipment with an integral antenna ........................................................................................... 15 5.1.7.0 General .................................................................................................................................................. 15 5.1.7.1 Equipment with a permanent internal RF port ...................................................................................... 15 5.1.7.2 Equipment with a temporary RF port .................................................................................................... 15 5.2 Mechanical and electrical design ...................................................................................................................... 15 5.2.1 General ........................................................................................................................................................ 15 5.2.2 Physical Controls ........................................................................................................................................ 15 5.2.3 Performance testing with integral antenna .................................................................................................. 15 6 Test conditions, power sources and ambient conditions ........................................................................ 15 6.1 Normal and extreme test-conditions ................................................................................................................. 15 6.2 Test power source ............................................................................................................................................. 16 6.3 Normal test conditions ...................................................................................................................................... 16 6.3.1 Normal temperature and humidity .............................................................................................................. 16 6.3.2 Normal test power source voltage ............................................................................................................... 16 6.3.2.1 Mains voltage ........................................................................................................................................ 16 6.3.2.2 Nickel-cadmium cells............................................................................................................................ 16 6.3.2.3 Other power sources .............................................................................................................................. 16 6.4 Extreme test conditions .................................................................................................................................... 17 SIST EN 301 357 V2.1.1:2017

ETSI ETSI EN 301 357 V2.1.1 (2017-06) 4 6.4.1 General ........................................................................................................................................................ 17 6.4.2 Extreme temperatures ................................................................................................................................. 17 6.4.2.0 General .................................................................................................................................................. 17 6.4.2.1 Procedures for tests at extreme temperatures ........................................................................................ 17 6.4.3 Extreme test power source voltages ............................................................................................................ 17 6.4.3.1 Mains voltage ........................................................................................................................................ 17 6.4.3.2 Re-chargeable battery power sources .................................................................................................... 17 6.4.3.3 Power sources using other types of batteries ......................................................................................... 17 6.4.3.4 Other power sources .............................................................................................................................. 18 7 General conditions for testing ................................................................................................................ 18 7.1 Band II LPD ..................................................................................................................................................... 18 7.2 Normal test modulation .................................................................................................................................... 18 7.3 Test fixture ....................................................................................................................................................... 19 7.4 Test site and general arrangements for radiated measurements........................................................................ 20 7.5 Modes of operation of the transmitter .............................................................................................................. 20 7.6 Arrangement for test signals at the input of the transmitter ............................................................................. 20 8 Methods of measurement and limits for transmitter parameters ............................................................ 20 8.1 General ............................................................................................................................................................. 20 8.2 Basic requirements for Band II LPD ................................................................................................................ 21 8.3 Methods of measurement and limits for transmitter parameters of Band II LPD ............................................. 21 8.3.1 General ........................................................................................................................................................ 21 8.3.2 Test site and general arrangements for radiated measurements .................................................................. 21 8.3.3 Test modulation .......................................................................................................................................... 22 8.3.4 Effective radiated power (e.r.p.) ................................................................................................................. 22 8.3.4.1 Definition .............................................................................................................................................. 22 8.3.4.2 Test procedure ....................................................................................................................................... 22 8.3.4.3 Limits .................................................................................................................................................... 22 8.3.4.4 Measurement uncertainty ...................................................................................................................... 22 8.3.5 Occupied bandwidth ................................................................................................................................... 23 8.3.5.1 Definition .............................................................................................................................................. 23 8.3.5.2 Test procedure ....................................................................................................................................... 23 8.3.5.3 Limits .................................................................................................................................................... 23 8.3.5.4 Measurement uncertainty ...................................................................................................................... 23 8.3.6 Frequency error ........................................................................................................................................... 23 8.3.6.1 Definition .............................................................................................................................................. 23 8.3.6.2 Test procedure ....................................................................................................................................... 24 8.3.6.3 Limits .................................................................................................................................................... 24 8.3.6.4 Measurement uncertainty ...................................................................................................................... 24 8.3.7 Transmitter timeout..................................................................................................................................... 24 8.3.7.1 Definitions ............................................................................................................................................. 24 8.3.7.2 Test procedure ....................................................................................................................................... 24 8.3.7.3 Limits .................................................................................................................................................... 25 8.3.7.4 Measurement uncertainty ...................................................................................................................... 25 8.3.8 Radiated spurious emissions ....................................................................................................................... 25 8.3.8.1 Definition .............................................................................................................................................. 25 8.3.8.2 Measurement procedure ........................................................................................................................ 25 8.3.8.3 Limits .................................................................................................................................................... 25 8.3.8.3.1 Band II LPD .................................................................................................................................... 25 8.3.8.3.2 Combined equipments ..................................................................................................................... 25 8.3.8.4 Measurement uncertainty ...................................................................................................................... 26 8.4 Frequency error ................................................................................................................................................ 26 8.4.1 General ........................................................................................................................................................ 26 8.4.2 Definition .................................................................................................................................................... 26 8.4.3 Method of measurement ............................................................................................................................. 26 8.4.4 Limit ........................................................................................................................................................... 26 8.5 Carrier power .................................................................................................................................................... 26 8.5.1 General ........................................................................................................................................................ 26 8.5.2 Definition .................................................................................................................................................... 26 8.5.3 Method of measurement for equipment with integral antenna.................................................................... 27 8.5.3.1 Method of measurement under normal test conditions ......................................................................... 27 SIST EN 301 357 V2.1.1:2017

ETSI ETSI EN 301 357 V2.1.1 (2017-06) 5 8.5.3.2 Method of measurement under extreme test conditions ........................................................................ 27 8.5.4 Limit ........................................................................................................................................................... 28 8.6 Channel bandwidth ........................................................................................................................................... 28 8.6.1 General ........................................................................................................................................................ 28 8.6.2 Definition .................................................................................................................................................... 28 8.6.3 Measurement of Necessary Bandwidth (BN) ............................................................................................. 28 8.6.4 Limits .......................................................................................................................................................... 29 8.7 Spurious emissions and cabinet radiation ......................................................................................................... 30 8.7.1 Definition .................................................................................................................................................... 30 8.7.2 Method of measuring the effective radiated power ..................................................................................... 30 8.7.3 Limits .......................................................................................................................................................... 31 8.7.4 Measuring receiver ..................................................................................................................................... 31 8.8 Cordless audio transmitter shutoff .................................................................................................................... 31 8.8.1 General ........................................................................................................................................................ 31 8.8.2 Definition .................................................................................................................................................... 31 8.8.3 Method of measurement ............................................................................................................................. 31 8.8.4 Limits .......................................................................................................................................................... 31 9 Receiver .................................................................................................................................................. 32 9.1 General ............................................................................................................................................................. 32 9.2 Spurious emissions and cabinet radiation ......................................................................................................... 32 9.2.1 Definition .................................................................................................................................................... 32 9.2.2 Method of measuring the power level in a specified load........................................................................... 32 9.2.3 Method of measuring the effective radiated power of the enclosure .......................................................... 32 9.2.4 Method of measuring the effective radiated power ..................................................................................... 33 9.2.5 Limits .......................................................................................................................................................... 33 9.3 Receiver sensitivity .......................................................................................................................................... 33 9.3.1 Definition .................................................................................................................................................... 33 9.3.2 Method of measurement ............................................................................................................................. 33 9.3.3 Limits .......................................................................................................................................................... 34 9.4 Receiver adjacent channel selectivity ............................................................................................................... 34 9.4.1 Definition .................................................................................................................................................... 34 9.4.2 Method of measurement ............................................................................................................................. 34 9.4.3 Limits .......................................................................................................................................................... 35 9.5 Receiver blocking ............................................................................................................................................. 35 9.5.1 Definition .................................................................................................................................................... 35 9.5.2 Method of measurement ............................................................................................................................. 35 9.5.3 Limits .......................................................................................................................................................... 36 10 Measurement uncertainty ....................................................................................................................... 36 10.1 Compliance assessment when measurement uncertainty is equal to or less than maximum acceptable uncertainty ........................................................................................................................................................ 36 10.2 Compliance assessment when measurement uncertainty is greater than maximum acceptable uncertainty .... 36 10.3 Maximum allowable measurement uncertainties for cordless audio and radio microphones........................... 37 10.4 Maximum allowable measurement uncertainties for Band II LPD .................................................................. 37 Annex A (informative): Relationship between the present document and the essential requirements of Directive 2014/53/EU ......................................................... 38 Annex B (normative): Measurement of Necessary Bandwidth (B) for analogue systems ............. 40 B.1 Test configuration for measurement of the Necessary Bandwidth (B) for analogue systems ................ 40 Annex C (normative): Radiated measurement .................................................................................. 41 C.1 Test sites and general arrangements for measurements involving the use of radiated fields ................. 41 C.1.1 General ............................................................................................................................................................. 41 C.1.2 Anechoic chamber ............................................................................................................................................ 41 C.1.3 Anechoic chamber with a conductive ground plane ......................................................................................... 42 C.1.4 Open Area Test Site (OATS) ........................................................................................................................... 43 C.1.5 Test antenna ...................................................................................................................................................... 44 C.1.6 Substitution antenna ......................................................................................................................................... 44 C.1.7 Measuring antenna ........................................................................................................................................... 45 SIST EN 301 357 V2.1.1:2017

ETSI ETSI EN 301 357 V2.1.1 (2017-06) 6 C.1.8 Stripline arrangement ....................................................................................................................................... 45 C.1.8.1 General ........................................................................................................................................................ 45 C.1.8.2 Description ...........................................................................................................................................

...

ETSI EN 301 357 V2.1.1 (2017-06)
HARMONISED EUROPEAN STANDARD
Cordless audio devices in the range 25 MHz to 2 000 MHz;
Harmonised Standard covering the essential requirements
of article 3.2 of Directive 2014/53/EU
---------------------- Page: 1 ----------------------
2 ETSI EN 301 357 V2.1.1 (2017-06)
Reference
REN/ERM-TG17-19-2
Keywords
audio, harmonised standard, 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 à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search

The present document may be made available in electronic versions and/or in print. The content of any electronic and/or

print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any

existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the

print of the Portable Document Format (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 status.

Information on the current status of this and other ETSI documents is available at

https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx

If you find errors in the present document, please send your comment to one of the following services:

https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification

No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying

and microfilm except as authorized by written permission of ETSI.

The content of the PDF version shall not be modified without the written authorization of ETSI.

The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2017.
All rights reserved.
TM TM TM

DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.

3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and

of the 3GPP Organizational Partners.
oneM2M logo is protected for the benefit of its Members

GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.

ETSI
---------------------- Page: 2 ----------------------
3 ETSI EN 301 357 V2.1.1 (2017-06)
Contents

Intellectual Property Rights ................................................................................................................................ 7

Foreword ............................................................................................................................................................. 7

Modal verbs terminology .................................................................................................................................... 7

Introduction ........................................................................................................................................................ 7

1 Scope ........................................................................................................................................................ 8

2 References ................................................................................................................................................ 8

2.1 Normative references ......................................................................................................................................... 8

2.2 Informative references ........................................................................................................................................ 9

3 Definitions, symbols and abbreviations ................................................................................................. 10

3.1 Definitions ........................................................................................................................................................ 10

3.2 Symbols ............................................................................................................................................................ 11

3.3 Abbreviations ................................................................................................................................................... 11

4 Technical requirements specifications ................................................................................................... 12

4.0 General ............................................................................................................................................................. 12

4.1 Cordless audio .................................................................................................................................................. 12

4.1.1 In-vehicle cordless ...................................................................................................................................... 12

4.1.2 Personal cordless ........................................................................................................................................ 12

4.1.3 Broadband multi channel audio systems ..................................................................................................... 12

4.1.4 Band II LPD ................................................................................................................................................ 12

4.2 Consumer radio microphones ........................................................................................................................... 12

4.3 In-ear monitoring .............................................................................................................................................. 12

4.4 Environmental profile ....................................................................................................................................... 12

5 Testing for compliance with technical requirements .............................................................................. 13

5.1 Presentation of equipment for testing purposes ................................................................................................ 13

5.1.1 Introduction................................................................................................................................................. 13

5.1.2 Choice of model for performance testing ................................................................................................... 13

5.1.3 Definitions of alignment and switching ranges ........................................................................................... 13

5.1.4 Alignment Range ........................................................................................................................................ 14

5.1.5 Choice of frequencies ................................................................................................................................. 14

5.1.5.0 General .................................................................................................................................................. 14

5.1.5.1 Testing of single channel equipment ..................................................................................................... 14

5.1.5.2 Testing of two channel equipment ........................................................................................................ 14

5.1.5.3 Testing of multi-channel equipment (more than two channels) ............................................................ 14

5.1.6 Testing of equipment with an external frequency control ........................................................................... 14

5.1.7 Testing of equipment with an integral antenna ........................................................................................... 15

5.1.7.0 General .................................................................................................................................................. 15

5.1.7.1 Equipment with a permanent internal RF port ...................................................................................... 15

5.1.7.2 Equipment with a temporary RF port .................................................................................................... 15

5.2 Mechanical and electrical design ...................................................................................................................... 15

5.2.1 General ........................................................................................................................................................ 15

5.2.2 Physical Controls ........................................................................................................................................ 15

5.2.3 Performance testing with integral antenna .................................................................................................. 15

6 Test conditions, power sources and ambient conditions ........................................................................ 15

6.1 Normal and extreme test-conditions ................................................................................................................. 15

6.2 Test power source ............................................................................................................................................. 16

6.3 Normal test conditions ...................................................................................................................................... 16

6.3.1 Normal temperature and humidity .............................................................................................................. 16

6.3.2 Normal test power source voltage ............................................................................................................... 16

6.3.2.1 Mains voltage ........................................................................................................................................ 16

6.3.2.2 Nickel-cadmium cells............................................................................................................................ 16

6.3.2.3 Other power sources .............................................................................................................................. 16

6.4 Extreme test conditions .................................................................................................................................... 17

ETSI
---------------------- Page: 3 ----------------------
4 ETSI EN 301 357 V2.1.1 (2017-06)

6.4.1 General ........................................................................................................................................................ 17

6.4.2 Extreme temperatures ................................................................................................................................. 17

6.4.2.0 General .................................................................................................................................................. 17

6.4.2.1 Procedures for tests at extreme temperatures ........................................................................................ 17

6.4.3 Extreme test power source voltages ............................................................................................................ 17

6.4.3.1 Mains voltage ........................................................................................................................................ 17

6.4.3.2 Re-chargeable battery power sources .................................................................................................... 17

6.4.3.3 Power sources using other types of batteries ......................................................................................... 17

6.4.3.4 Other power sources .............................................................................................................................. 18

7 General conditions for testing ................................................................................................................ 18

7.1 Band II LPD ..................................................................................................................................................... 18

7.2 Normal test modulation .................................................................................................................................... 18

7.3 Test fixture ....................................................................................................................................................... 19

7.4 Test site and general arrangements for radiated measurements........................................................................ 20

7.5 Modes of operation of the transmitter .............................................................................................................. 20

7.6 Arrangement for test signals at the input of the transmitter ............................................................................. 20

8 Methods of measurement and limits for transmitter parameters ............................................................ 20

8.1 General ............................................................................................................................................................. 20

8.2 Basic requirements for Band II LPD ................................................................................................................ 21

8.3 Methods of measurement and limits for transmitter parameters of Band II LPD ............................................. 21

8.3.1 General ........................................................................................................................................................ 21

8.3.2 Test site and general arrangements for radiated measurements .................................................................. 21

8.3.3 Test modulation .......................................................................................................................................... 22

8.3.4 Effective radiated power (e.r.p.) ................................................................................................................. 22

8.3.4.1 Definition .............................................................................................................................................. 22

8.3.4.2 Test procedure ....................................................................................................................................... 22

8.3.4.3 Limits .................................................................................................................................................... 22

8.3.4.4 Measurement uncertainty ...................................................................................................................... 22

8.3.5 Occupied bandwidth ................................................................................................................................... 23

8.3.5.1 Definition .............................................................................................................................................. 23

8.3.5.2 Test procedure ....................................................................................................................................... 23

8.3.5.3 Limits .................................................................................................................................................... 23

8.3.5.4 Measurement uncertainty ...................................................................................................................... 23

8.3.6 Frequency error ........................................................................................................................................... 23

8.3.6.1 Definition .............................................................................................................................................. 23

8.3.6.2 Test procedure ....................................................................................................................................... 24

8.3.6.3 Limits .................................................................................................................................................... 24

8.3.6.4 Measurement uncertainty ...................................................................................................................... 24

8.3.7 Transmitter timeout..................................................................................................................................... 24

8.3.7.1 Definitions ............................................................................................................................................. 24

8.3.7.2 Test procedure ....................................................................................................................................... 24

8.3.7.3 Limits .................................................................................................................................................... 25

8.3.7.4 Measurement uncertainty ...................................................................................................................... 25

8.3.8 Radiated spurious emissions ....................................................................................................................... 25

8.3.8.1 Definition .............................................................................................................................................. 25

8.3.8.2 Measurement procedure ........................................................................................................................ 25

8.3.8.3 Limits .................................................................................................................................................... 25

8.3.8.3.1 Band II LPD .................................................................................................................................... 25

8.3.8.3.2 Combined equipments ..................................................................................................................... 25

8.3.8.4 Measurement uncertainty ...................................................................................................................... 26

8.4 Frequency error ................................................................................................................................................ 26

8.4.1 General ........................................................................................................................................................ 26

8.4.2 Definition .................................................................................................................................................... 26

8.4.3 Method of measurement ............................................................................................................................. 26

8.4.4 Limit ........................................................................................................................................................... 26

8.5 Carrier power .................................................................................................................................................... 26

8.5.1 General ........................................................................................................................................................ 26

8.5.2 Definition .................................................................................................................................................... 26

8.5.3 Method of measurement for equipment with integral antenna.................................................................... 27

8.5.3.1 Method of measurement under normal test conditions ......................................................................... 27

ETSI
---------------------- Page: 4 ----------------------
5 ETSI EN 301 357 V2.1.1 (2017-06)

8.5.3.2 Method of measurement under extreme test conditions ........................................................................ 27

8.5.4 Limit ........................................................................................................................................................... 28

8.6 Channel bandwidth ........................................................................................................................................... 28

8.6.1 General ........................................................................................................................................................ 28

8.6.2 Definition .................................................................................................................................................... 28

8.6.3 Measurement of Necessary Bandwidth (BN) ............................................................................................. 28

8.6.4 Limits .......................................................................................................................................................... 29

8.7 Spurious emissions and cabinet radiation ......................................................................................................... 30

8.7.1 Definition .................................................................................................................................................... 30

8.7.2 Method of measuring the effective radiated power ..................................................................................... 30

8.7.3 Limits .......................................................................................................................................................... 31

8.7.4 Measuring receiver ..................................................................................................................................... 31

8.8 Cordless audio transmitter shutoff .................................................................................................................... 31

8.8.1 General ........................................................................................................................................................ 31

8.8.2 Definition .................................................................................................................................................... 31

8.8.3 Method of measurement ............................................................................................................................. 31

8.8.4 Limits .......................................................................................................................................................... 31

9 Receiver .................................................................................................................................................. 32

9.1 General ............................................................................................................................................................. 32

9.2 Spurious emissions and cabinet radiation ......................................................................................................... 32

9.2.1 Definition .................................................................................................................................................... 32

9.2.2 Method of measuring the power level in a specified load........................................................................... 32

9.2.3 Method of measuring the effective radiated power of the enclosure .......................................................... 32

9.2.4 Method of measuring the effective radiated power ..................................................................................... 33

9.2.5 Limits .......................................................................................................................................................... 33

9.3 Receiver sensitivity .......................................................................................................................................... 33

9.3.1 Definition .................................................................................................................................................... 33

9.3.2 Method of measurement ............................................................................................................................. 33

9.3.3 Limits .......................................................................................................................................................... 34

9.4 Receiver adjacent channel selectivity ............................................................................................................... 34

9.4.1 Definition .................................................................................................................................................... 34

9.4.2 Method of measurement ............................................................................................................................. 34

9.4.3 Limits .......................................................................................................................................................... 35

9.5 Receiver blocking ............................................................................................................................................. 35

9.5.1 Definition .................................................................................................................................................... 35

9.5.2 Method of measurement ............................................................................................................................. 35

9.5.3 Limits .......................................................................................................................................................... 36

10 Measurement uncertainty ....................................................................................................................... 36

10.1 Compliance assessment when measurement uncertainty is equal to or less than maximum acceptable

uncertainty ........................................................................................................................................................ 36

10.2 Compliance assessment when measurement uncertainty is greater than maximum acceptable uncertainty .... 36

10.3 Maximum allowable measurement uncertainties for cordless audio and radio microphones........................... 37

10.4 Maximum allowable measurement uncertainties for Band II LPD .................................................................. 37

Annex A (informative): Relationship between the present document and the essential

requirements of Directive 2014/53/EU ......................................................... 38

Annex B (normative): Measurement of Necessary Bandwidth (B) for analogue systems ............. 40

B.1 Test configuration for measurement of the Necessary Bandwidth (B) for analogue systems ................ 40

Annex C (normative): Radiated measurement .................................................................................. 41

C.1 Test sites and general arrangements for measurements involving the use of radiated fields ................. 41

C.1.1 General ............................................................................................................................................................. 41

C.1.2 Anechoic chamber ............................................................................................................................................ 41

C.1.3 Anechoic chamber with a conductive ground plane ......................................................................................... 42

C.1.4 Open Area Test Site (OATS) ........................................................................................................................... 43

C.1.5 Test antenna ...................................................................................................................................................... 44

C.1.6 Substitution antenna ......................................................................................................................................... 44

C.1.7 Measuring antenna ........................................................................................................................................... 45

ETSI
---------------------- Page: 5 ----------------------
6 ETSI EN 301 357 V2.1.1 (2017-06)

C.1.8 Stripline arrangement ....................................................................................................................................... 45

C.1.8.1 General ........................................................................................................................................................ 45

C.1.8.2 Description .................................................................................................................................................. 45

C.1.8.3 Calibration ..............................................................................................................................

...

Draft ETSI EN 301 357 V2.0.1 (2017-03)
HARMONISED EUROPEAN STANDARD
Cordless audio devices in the range 25 MHz to 2 000 MHz;
Harmonised Standard covering the essential requirements
of article 3.2 of Directive 2014/53/EU
---------------------- Page: 1 ----------------------
2 Draft ETSI EN 301 357 V2.0.1 (2017-03)
Reference
REN/ERM-TG17-19-2
Keywords
audio, harmonised standard, radio, radio MIC,
testing
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ETSI
---------------------- Page: 2 ----------------------
3 Draft ETSI EN 301 357 V2.0.1 (2017-03)
Contents

Intellectual Property Rights ................................................................................................................................ 7

Foreword ............................................................................................................................................................. 7

Modal verbs terminology .................................................................................................................................... 7

Introduction ........................................................................................................................................................ 7

1 Scope ........................................................................................................................................................ 8

2 References ................................................................................................................................................ 8

2.1 Normative references ......................................................................................................................................... 8

2.2 Informative references ........................................................................................................................................ 9

3 Definitions, symbols and abbreviations ................................................................................................. 10

3.1 Definitions ........................................................................................................................................................ 10

3.2 Symbols ............................................................................................................................................................ 11

3.3 Abbreviations ................................................................................................................................................... 11

4 Technical requirements specifications ................................................................................................... 12

4.0 General ............................................................................................................................................................. 12

4.1 Cordless audio .................................................................................................................................................. 12

4.1.1 In-vehicle cordless ...................................................................................................................................... 12

4.1.2 Personal cordless ........................................................................................................................................ 12

4.1.3 Broadband multi channel audio systems ..................................................................................................... 12

4.1.4 Band II LPD ................................................................................................................................................ 12

4.2 Consumer radio microphones ........................................................................................................................... 12

4.3 In-ear monitoring .............................................................................................................................................. 12

4.4 Environmental profile ....................................................................................................................................... 12

5 Testing for compliance with technical requirements .............................................................................. 13

5.1 Presentation of equipment for testing purposes ................................................................................................ 13

5.1.1 Introduction................................................................................................................................................. 13

5.1.2 Choice of model for performance testing ................................................................................................... 13

5.1.3 Definitions of alignment and switching ranges ........................................................................................... 13

5.1.4 Alignment Range ........................................................................................................................................ 14

5.1.5 Choice of frequencies ................................................................................................................................. 14

5.1.5.0 General .................................................................................................................................................. 14

5.1.5.1 Testing of single channel equipment ..................................................................................................... 14

5.1.5.2 Testing of two channel equipment ........................................................................................................ 14

5.1.5.3 Testing of multi-channel equipment (more than two channels) ............................................................ 14

5.1.6 Testing of equipment with an external frequency control ........................................................................... 14

5.1.7 Testing of equipment with an integral antenna ........................................................................................... 15

5.1.7.0 General .................................................................................................................................................. 15

5.1.7.1 Equipment with a permanent internal RF port ...................................................................................... 15

5.1.7.2 Equipment with a temporary RF port .................................................................................................... 15

5.2 Mechanical and electrical design ...................................................................................................................... 15

5.2.1 General ........................................................................................................................................................ 15

5.2.2 Physical Controls ........................................................................................................................................ 15

5.2.3 Performance testing with integral antenna .................................................................................................. 15

6 Test conditions, power sources and ambient conditions ........................................................................ 15

6.1 Normal and extreme test-conditions ................................................................................................................. 15

6.2 Test power source ............................................................................................................................................. 16

6.3 Normal test conditions ...................................................................................................................................... 16

6.3.1 Normal temperature and humidity .............................................................................................................. 16

6.3.2 Normal test power source voltage ............................................................................................................... 16

6.3.2.1 Mains voltage ........................................................................................................................................ 16

6.3.2.2 Nickel-cadmium cells............................................................................................................................ 16

6.3.2.3 Other power sources .............................................................................................................................. 16

6.4 Extreme test conditions .................................................................................................................................... 17

ETSI
---------------------- Page: 3 ----------------------
4 Draft ETSI EN 301 357 V2.0.1 (2017-03)

6.4.1 General ........................................................................................................................................................ 17

6.4.2 Extreme temperatures ................................................................................................................................. 17

6.4.2.0 General .................................................................................................................................................. 17

6.4.2.1 Procedures for tests at extreme temperatures ........................................................................................ 17

6.4.3 Extreme test power source voltages ............................................................................................................ 17

6.4.3.1 Mains voltage ........................................................................................................................................ 17

6.4.3.2 Re-chargeable battery power sources .................................................................................................... 17

6.4.3.3 Power sources using other types of batteries ......................................................................................... 17

6.4.3.4 Other power sources .............................................................................................................................. 18

7 General conditions for testing ................................................................................................................ 18

7.1 Band II LPD ..................................................................................................................................................... 18

7.2 Normal test modulation .................................................................................................................................... 18

7.3 Test fixture ....................................................................................................................................................... 19

7.4 Test site and general arrangements for radiated measurements........................................................................ 20

7.5 Modes of operation of the transmitter .............................................................................................................. 20

7.6 Arrangement for test signals at the input of the transmitter ............................................................................. 20

8 Methods of measurement and limits for transmitter parameters ............................................................ 20

8.1 General ............................................................................................................................................................. 20

8.2 Basic requirements for Band II LPD ................................................................................................................ 21

8.3 Methods of measurement and limits for transmitter parameters of Band II LPD ............................................. 21

8.3.1 General ........................................................................................................................................................ 21

8.3.2 Test site and general arrangements for radiated measurements .................................................................. 21

8.3.3 Test modulation .......................................................................................................................................... 22

8.3.4 Effective radiated power (e.r.p.) ................................................................................................................. 22

8.3.4.1 Definition .............................................................................................................................................. 22

8.3.4.2 Test procedure ....................................................................................................................................... 22

8.3.4.3 Limits .................................................................................................................................................... 22

8.3.4.4 Measurement uncertainty ...................................................................................................................... 22

8.3.5 Occupied bandwidth ................................................................................................................................... 23

8.3.5.1 Definition .............................................................................................................................................. 23

8.3.5.2 Test procedure ....................................................................................................................................... 23

8.3.5.3 Limits .................................................................................................................................................... 23

8.3.5.4 Measurement uncertainty ...................................................................................................................... 23

8.3.6 Frequency error ........................................................................................................................................... 23

8.3.6.1 Definition .............................................................................................................................................. 23

8.3.6.2 Test procedure ....................................................................................................................................... 24

8.3.6.3 Limits .................................................................................................................................................... 24

8.3.6.4 Measurement uncertainty ...................................................................................................................... 24

8.3.7 Transmitter timeout..................................................................................................................................... 24

8.3.7.1 Definitions ............................................................................................................................................. 24

8.3.7.2 Test procedure ....................................................................................................................................... 24

8.3.7.3 Limits .................................................................................................................................................... 25

8.3.7.4 Measurement uncertainty ...................................................................................................................... 25

8.3.8 Radiated spurious emissions ....................................................................................................................... 25

8.3.8.1 Definition .............................................................................................................................................. 25

8.3.8.2 Measurement procedure ........................................................................................................................ 25

8.3.8.3 Limits .................................................................................................................................................... 25

8.3.8.3.1 Band II LPD .................................................................................................................................... 25

8.3.8.3.2 Combined equipments ..................................................................................................................... 25

8.3.8.4 Measurement uncertainty ...................................................................................................................... 26

8.4 Frequency error ................................................................................................................................................ 26

8.4.1 General ........................................................................................................................................................ 26

8.4.2 Definition .................................................................................................................................................... 26

8.4.3 Method of measurement ............................................................................................................................. 26

8.4.4 Limit ........................................................................................................................................................... 26

8.5 Carrier power .................................................................................................................................................... 26

8.5.1 General ........................................................................................................................................................ 26

8.5.2 Definition .................................................................................................................................................... 26

8.5.3 Method of measurement for equipment with integral antenna.................................................................... 27

8.5.3.1 Method of measurement under normal test conditions ......................................................................... 27

ETSI
---------------------- Page: 4 ----------------------
5 Draft ETSI EN 301 357 V2.0.1 (2017-03)

8.5.3.2 Method of measurement under extreme test conditions ........................................................................ 27

8.5.4 Limit ........................................................................................................................................................... 28

8.6 Channel bandwidth ........................................................................................................................................... 28

8.6.1 General ........................................................................................................................................................ 28

8.6.2 Definition .................................................................................................................................................... 28

8.6.3 Measurement of Necessary Bandwidth (BN) ............................................................................................. 28

8.6.4 Limits .......................................................................................................................................................... 29

8.7 Spurious emissions and cabinet radiation ......................................................................................................... 30

8.7.1 Definition .................................................................................................................................................... 30

8.7.2 Method of measuring the effective radiated power ..................................................................................... 30

8.7.3 Limits .......................................................................................................................................................... 31

8.7.4 Measuring receiver ..................................................................................................................................... 31

8.8 Cordless audio transmitter shutoff .................................................................................................................... 31

8.8.1 General ........................................................................................................................................................ 31

8.8.2 Definition .................................................................................................................................................... 31

8.8.3 Method of measurement ............................................................................................................................. 31

8.8.4 Limits .......................................................................................................................................................... 31

9 Receiver .................................................................................................................................................. 32

9.1 General ............................................................................................................................................................. 32

9.2 Spurious emissions and cabinet radiation ......................................................................................................... 32

9.2.1 Definition .................................................................................................................................................... 32

9.2.2 Method of measuring the power level in a specified load........................................................................... 32

9.2.3 Method of measuring the effective radiated power of the enclosure .......................................................... 32

9.2.4 Method of measuring the effective radiated power ..................................................................................... 33

9.2.5 Limits .......................................................................................................................................................... 33

9.3 Receiver sensitivity .......................................................................................................................................... 33

9.3.1 Definition .................................................................................................................................................... 33

9.3.2 Method of measurement ............................................................................................................................. 33

9.3.3 Limits .......................................................................................................................................................... 34

9.4 Receiver adjacent channel selectivity ............................................................................................................... 34

9.4.1 Definition .................................................................................................................................................... 34

9.4.2 Method of measurement ............................................................................................................................. 34

9.4.3 Limits .......................................................................................................................................................... 35

9.5 Receiver blocking ............................................................................................................................................. 35

9.5.1 Definition .................................................................................................................................................... 35

9.5.2 Method of measurement ............................................................................................................................. 35

9.5.3 Limits .......................................................................................................................................................... 36

10 Measurement uncertainty ....................................................................................................................... 36

10.1 Compliance assessment when measurement uncertainty is equal to or less than maximum acceptable

uncertainty ........................................................................................................................................................ 36

10.2 Compliance assessment when measurement uncertainty is greater than maximum acceptable uncertainty .... 36

10.3 Maximum allowable measurement uncertainties for cordless audio and radio microphones........................... 37

10.4 Maximum allowable measurement uncertainties for Band II LPD .................................................................. 37

Annex A (informative): Relationship between the present document and the essential

requirements of Directive 2014/53/EU ......................................................... 38

Annex B (normative): Measurement of Necessary Bandwidth (B) for analogue systems ............. 40

B.1 Test configuration for measurement of the Necessary Bandwidth (B) for analogue systems ................ 40

Annex C (normative): Radiated measurement .................................................................................. 41

C.1 Test sites and general arrangements for measurements involving the use of radiated fields ................. 41

C.1.1 General ............................................................................................................................................................. 41

C.1.2 Anechoic chamber ............................................................................................................................................ 41

C.1.3 Anechoic chamber with a conductive ground plane ......................................................................................... 42

C.1.4 Open Area Test Site (OATS) ........................................................................................................................... 43

C.1.5 Test antenna ...................................................................................................................................................... 44

C.1.6 Substitution antenna ......................................................................................................................................... 44

C.1.7 Measuring antenna ........................................................................................................................................... 45

ETSI
---------------------- Page: 5 ----------------------
6 Draft ETSI EN 301 357 V2.0.1 (2017-03)

C.1.8 Stripline arrangement ....................................................................................................................................... 45

C.1.8.1 General ........................................................................................................................................................ 45

C.1.8.2 Description .................................................................................................................................................. 45

C.1.8.3 Calibration ........................................................................................................

...

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