M00044418
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ELECTROMAGNETIC COMPATIBILITY AND RADIO SPECTRUM MATTERS (ERM) - TECHNICAL CHARACTERISTICS AND TEST METHODS FOR WIRELESS MICROPHONES IN THE 25 MHZ TO 3 GHZ FREQUENCY RANGE
European Telecommunications Standards Institute
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Availability date: 11/06/2021
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Foreword
Introduction
1 Scope
2 References
3 Definitions, symbols and abbreviations
3.1 Definitions
3.2 Symbols
3.3 Abbreviations
4 Functional characteristics
4.1 Radio microphone descriptions
4.2 In ear monitoring
5 General
5.1 Presentation of equipment for testing purposes
5.2 Mechanical and electrical design
5.3 Interpretation of the measurement results
6 Test conditions, power sources and ambient conditions
6.1 Normal and extreme test-conditions
6.2 Test power source
6.3 Normal test conditions
6.4 Extreme test conditions
7 General conditions
7.1 Normal test modulation
7.2 Artificial antenna
7.3 Test fixture
7.4 Test site and general arrangements for
radiated measurements
7.5 Modes of operation of the transmitter
7.6 Arrangement for test signals at the input
of the transmitter
8 Methods of measurement and limits for transmitter
parameters
8.1 Frequency error
8.2 Carrier power
8.3 Channel bandwidth
8.4 Spurious emissions
9 Receiver
9.1 Spurious emissions
10 Measurement uncertainty
Annex A (normative): Radiated measurement
A.1 Test sites and general arrangements for
measurements involving the use of radiated fields
A.2 Guidance on the use of radiation test sites
A.3 Further optional alternative indoor test site
using an anechoic chamber
Annex B (normative): Measurement of Necessary Bandwidth
(BN)
Annex C (informative): Graphic representation of the
selection of equipment and frequencies for
testing of single and multi-frequency equipment
History
Amend I-ETS 300 422 to upgrade spectrum management aspects and convert to EN. Extend scope to cover: Cordless audio headphones (mono and stereo); cordless audio loudspeakers; professional-in-ear monitoring systems.
Published | |
Document Type | Standard |
Status | Current |
Publisher | European Telecommunications Standards Institute |
Pages | |
ISBN | |
Committee | ERM RP08 |