ETSI EN 301 166-1 V1.3.2 (2009-11)

European Standard (Telecommunications series)

Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Land Mobile Service;
Radio equipment for analogue and/or digital
communication (speech and/or data) and operating on
narrow band channels and having an antenna connector;
Part 1: Technical characteristics and
methods of measurement
2 ETSI EN 301 166-1 V1.3.2 (2009-11)

Reference
REN/ERM-TGDMR-287-1
Keywords
analogue, antenna, connector, data, digital,
mobile, PMR, radio, speech
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ETSI
3 ETSI EN 301 166-1 V1.3.2 (2009-11)
Contents
Intellectual Property Rights . 7
Foreword . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 9
2.2 Informative references . 9
3 Definitions, symbols and abbreviations . 9
3.1 Definitions . 9
3.2 Symbols . 11
3.3 Abbreviations . 11
4 General . 12
4.1 Presentation of equipment for testing purposes . 12
4.1.1 Choice of model for testing . 12
4.1.1.1 Auxiliary test equipment . 12
4.1.1.2 Declarations by the provider . 12
5 Test conditions, power sources and ambient temperatures . 13
5.1 Normal and extreme test conditions . 13
5.2 Test power source . 13
5.3 Normal test conditions . 13
5.3.1 Normal temperature and humidity . 13
5.3.2 Normal test power source . 13
5.3.2.1 Mains voltage . 13
5.3.2.2 Regulated lead-acid battery power sources used on vehicles . 13
5.3.2.3 Other power sources . 14
5.4 Extreme test conditions . 14
5.4.1 Extreme temperatures . 14
5.4.2 Extreme test source voltages . 14
5.4.2.1 Mains voltage . 14
5.4.2.2 Regulated lead-acid battery power sources used on vehicles . 14
5.4.2.3 Power sources using other types of batteries . 14
5.4.2.4 Other power sources . 14
5.5 Procedure for tests at extreme temperatures . 15
5.5.1 Procedure for equipment designed for continuous transmission. 15
5.5.2 Procedure for equipment designed for intermittent transmission . 15
5.6 Testing of equipment that does not have an external 50 Ω RF connector (integral antenna equipment) . 15
6 General test conditions . 16
6.1 Test signals . 16
6.1.1 Transmitter test signals . 16
6.1.1.1 Analogue signals (B1) . 16
6.1.1.2 Digital signals (M5, M7) . 16
6.1.2 Receiver test signal for analogue equipment . 16
6.1.3 Receiver test signals for data (and digitized voice) equipment (M2), (M3), (M4) and (M6) . 17
6.1.4 Transmitter effective radiated power test signal (C1) . 17
6.2 Test load (artificial antenna) . 17
6.3 PEP . 17
6.4 Encoders . 17
6.5 Modulation processing . 17
6.6 Test sites and general arrangements for radiated measurements . 18
6.7 Transmitter automatic shut-off facility . 18
6.8 Arrangement for analogue test signals at the input of the transmitter . 18
6.9 Arrangement for test signals at the input of the receiver . 18
6.10 Receiver mute or squelch facility . 18
6.11 Receiver rated audio output power . 18
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4 ETSI EN 301 166-1 V1.3.2 (2009-11)
6.12 Facilities for access . 18
6.12.1 Analogue access . 18
6.12.2 Test points for bit stream measurements. 18
6.12.3 Coupling arrangements . 19
6.12.3.1 Arrangements for measurements with continuous bit streams . 19
6.12.3.2 Arrangements for measurements with messages . 19
6.12.4 Modes of operation of the transmitter . 19
6.13 Duplex equipment . 19
7 Technical characteristics of the transmitter . 20
7.1 Maximum power (PX) (conducted) . 20
7.1.1 Definition . 20
7.1.2 Method of measurement . 20
7.1.3 Limit . 20
7.2 Maximum effective radiated power . 20
7.2.1 Definition . 20
7.2.2 Method of measurement . 20
7.2.2.1 Evaluation of CW-to-PEP correction factor for signal C1 . 20
7.2.2.2 Measurements on a test site . 21
7.2.3 Limit . 22
7.3 Adjacent and alternate channels power . 22
7.3.1 Definition . 22
7.3.2 Methods of measurement . 23
7.3.3 Limit . 24
7.4 Unwanted emissions in the spurious domain. 24
7.4.1 Definition . 24
7.4.2 Method of measurement . 25
7.4.2.1 Method of measuring conducted spurious emissions (clause 7.4.1 a)) in a specified load . 25
7.4.2.2 Method of measuring the effective radiated power with an external antenna connector
(clause 7.4.1 b)) . 25
7.4.2.3 Method of measuring the effective radiated power with an integral antenna (clause 7.4.1 c)) . 26
7.4.3 Limits . 27
7.5 Intermodulation attenuation. 28
7.5.1 Definition . 28
7.5.2 Method of measurement . 28
7.5.3 Limits . 29
7.6 Transient power . 29
7.6.1 Definition . 29
7.6.2 Method of measurement . 29
7.6.2.1 Characteristics of the transient power measuring device . 30
7.6.3 Limits . 30
7.7 Frequency error . 30
7.7.1 Definition . 31
7.7.2 Method of measurement . 31
7.7.3 Limits . 31
8 Technical characteristics of the receiver . 32
8.1 Maximum usable sensitivity (analogue, conducted) . 32
8.1.1 Definition . 32
8.1.2 Method of measuring the SINAD ratio . 32
8.1.3 Limits . 32
8.2 Maximum usable sensitivity (analogue, field strength) . 33
8.2.1 Definition . 33
8.2.2 Method of measurement . 33
8.2.3 Limits . 34
8.3 Maximum usable sensitivity (digital, conducted) . 34
8.3.1 Definition . 34
8.3.2 Methods of measurement . 34
8.3.2.1 Method of measurement with continuous bit streams . 34
8.3.2.2 Method of measurement with messages . 35
8.3.3 Limits . 35
8.4 Maximum usable sensitivity (digital, field strength) . 36
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5 ETSI EN 301 166-1 V1.3.2 (2009-11)
8.4.1 Definition . 36
8.4.2 Method of measurement . 36
8.4.2.1 Method of measurement with continuous bit streams . 36
8.4.2.2 Method of measurement with messages . 37
8.4.3 Limits . 39
8.5 Adjacent channel selectivity . 39
8.5.1 Definition . 39
8.5.2 Method of measurement . 39
8.5.2.1 Method of measurement (analogue) . 39
8.5.2.2 Method of measurement (digital with continuous bit stream) . 40
8.5.2.3 Method of measurement with messages . 41
8.5.3 Limits . 42
8.6 Spurious response rejection . 42
8.6.1 Definition . 42
8.6.2 Method of measurement . 42
8.6.2.1 Introduction to the method of measurement . 42
8.6.2.2 Method of search over the "limited frequency range" . 43
8.6.2.3 Method of measurement (analogue) . 44
8.6.2.4 Method of measurement (digital with continuous bit streams) . 44
8.6.2.5 Method of measurement (digital with messages) . 45
8.6.3 Limits . 46
8.7 Intermodulation response rejection . 46
8.7.1 Definition . 46
8.7.2 Method of measurement . 46
8.7.2.1 Method of measurement (analogue) . 46
8.7.2.2 Method of measurement (digital with continuous bit stream) . 47
8.7.2.3 Method of measurement with messages . 48
8.7.3 Limit . 49
8.8 Blocking or desensitization . 49
8.8.1 Definition . 49
8.8.2 Method of measurement . 49
8.8.2.1 Method of measurement (analogue) . 49
8.8.2.2 Method of measurement (digital with continuous bit stream) . 50
8.8.2.3 Method of measurement with messages . 51
8.8.3 Limit . 51
8.9 Spurious radiations . 52
8.9.1 Definition . 52
8.9.2 Methods of measurement . 52
8.9.2.1 Method of measuring the power level in a specified load (clause 8.9.1 a)) . 52
8.9.2.2 Method of measuring the effective radiated power (clause 8.9.1 b)) . 52
8.9.2.3 Method of measuring the effective radiated power (clause 8.9.1 c)) . 53
8.9.3 Limits . 54
8.10 Co-channel rejection. 54
8.10.1 Definition . 54
8.10.2 Methods of measurement . 54
8.10.2.1 Method of measurement (analogue) . 54
8.10.2.2 Method of measurement (digital with continuous bit stream) . 55
8.10.2.3 Method of measurement with messages . 56
8.10.3 Limits . 57
9 Duplex operation . 57
9.1 Receiver desensitization (with simultaneous transmission and reception) . 57
9.1.1 Definition . 57
9.1.2 Methods of measurement . 58
9.1.2.1 Desensitization measured with analogue modulation . 58
9.1.2.1.1 Method of measurement when the equipment has a duplex filter . 58
9.1.2.1.2 Method of measurement when the equipment has to operate with two antennas . 59
9.1.2.2 Desensitization measured with continuous bit streams . 60
9.1.2.2.1 Method of measurement when the equipment has a duplex filter . 60
9.1.2.2.2 Method of measurement when the equipment has to operate with two antennas . 61
9.1.2.3 Desensitization measured with messages . 62
9.1.2.3.1 Method of measurement when the equipment has a duplex filter . 62
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6 ETSI EN 301 166-1 V1.3.2 (2009-11)
9.1.2.3.2 Method of measurement when the equipment has to operate with two antennas . 63
9.1.3 Limits . 64
9.2 Receiver spurious response rejection (with simultaneous transmission and reception) . 64
9.2.1 Definition . 64
9.2.2 Method of measurement . 64
9.2.3 Limits . 68
10 Measurement uncertainty . 68
Annex A (normative): Radiated measurement . 69
A.1 Test sites and general arrangements for measurements involving the use of radiated fields . 69
A.1.1 Anechoic chamber . 69
A.1.2 Anechoic chamber with a ground plane . 70
A.1.3 OATS . 71
A.1.4 Test antenna . 72
A.1.5 Substitution antenna . 72
A.1.6 Measuring antenna . 73
A.2 Guidance on the use of radiation test sites . 73
A.2.1 Verification of the test site . 73
A.2.2 Preparation of the EUT . 73
A.2.3 Power supplies to the EUT . 73
A.2.4 Volume control setting for analogue speech tests . 73
A.2.5 Range length . 74
A.2.6 Site preparation . 74
A.3 Coupling of signals . 75
A.3.1 General . 75
A.3.2 Data signals . 75
A.3.3 Speech and analogue signals . 75
A.3.3.1 Acoustic coupler description. 75
A.3.3.2 Calibration . 76
Annex B (normative): Spectrum analyser specification . 77
Annex C (normative): Specification for measurement filter . 78
Annex D (informative): Bibliography . 80
History . 81

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7 ETSI EN 301 166-1 V1.3.2 (2009-11)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM).
The present document is part 1 of a multi-part deliverable covering Land Mobile Service; Radio equipment for analogue
and/or digital communication (speech and/or data) and operating on narrow band channels and having an antenna
connector, as identified below:
Part 1: "Technical characteristics and methods of measurement";
Part 2: "Harmonized EN covering essential requirements of article 3.2 of the R&TTE Directive".

National transposition dates
Date of latest announcement of this EN (doa): 28 February 2010
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 August 2010
Date of withdrawal of any conflicting National Standard (dow): 31 August 2010

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8 ETSI EN 301 166-1 V1.3.2 (2009-11)
1 Scope
The present document covers the technical requirements for radio transmitters and receivers used in stations in the
Private Mobile Radio (PMR) service. It applies to use in the land mobile service, operating on radio frequencies
between 30 MHz and 3 GHz, with narrow channel separations (CSP) (less than 10 kHz) and intended for speech and/or
data. It is the intention of the present document to cover any Channel Bandwidths (CBW) permitted by National
Administrations for such systems, e.g. 6,25 kHz.
Table 1: Radiocommunications service frequency bands
Radiocommunications service frequency bands
Transmit 30 MHz to 3 000 MHz
Receive 30 MHz to 3 000 MHz
In the present document different requirements are given for the different radio frequency bands, environmental
conditions and types of equipment where appropriate.
In the present document, data transmission systems are defined as systems which transmit and/or receive data and/or
digitized voice. The equipment comprises a transmitter and associated encoder and modulator and/or a receiver and
associated demodulator and decoder.
The present document covers equipment which may use constant envelope or non-constant envelope modulation.
The types of equipment covered by the present document are as follows:
- base station: equipment fitted with antenna connector;
- mobile station: equipment fitted with antenna connector.
Handportable stations:
a) either fitted with an antenna connector; or
b) without an external antenna connector but fitted with a permanent internal or a temporary internal 50 Ω RF
connector which allows access to the transmitter output and the receiver input.
Handportable station equipment without an external or internal Radio Frequency (RF) connector and without the possibility
of having a temporary internal 50 Ω RF connector is not covered by the present document.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
ETSI
9 ETSI EN 301 166-1 V1.3.2 (2009-11)
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] ANSI C63.5-2004: "American National Standard for Electromagnetic Compatibility-Radiated
Emission Measurements in Electromagnetic Interference (EMI) Control-Calibration of Antennas
(9 kHz to 40 GHz)".
[2] ITU-T Recommendation O.153: "Basic parameters for the measurement of error performance at
bit rates below the primary rate".
[3] IEC 60489-3 (1988): "Methods of measurement for radio equipment used in the mobile services.
Part 3: Receivers for A3E or F3E emissions", appendix F.
[4] ITU-R Recommendation SM.329-10 (2003): "Unwanted emissions in the spurious domain".
[5] ITU-T Recommendation O.41 (1994): "Psophometer for use on telephone-type circuits".
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
[i.1] ETSI TR 100 028 (V1.4.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Uncertainties in the measurement of mobile radio equipment characteristics".
[i.2] ETSI TR 102 273 (V1.2.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
50 Ω: 50 ohm non-reactive impedance
adjacent and alternate channels:
• adjacent channels are those two channels offset from the wanted channel by the channel spacing
• alternate channels are those two channels offset from the wanted channel by double the channel spacing
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10 ETSI EN 301 166-1 V1.3.2 (2009-11)
f
c
Upper
Lower Wanted Upper
Lower
Alternate Channel Adjacent Alternate
Adjacent
Figure 1: Adjacent and alternate channel definitions
audio frequency input socket: socket normally intended for connection to a microphone for the purpose of voice
transmission
NOTE: In some cases, this socket could be expected to be used for the input of an audio sub-carrier, modulated to
carry data, such as FFSK.
base station: equipment fitted with an antenna connector, for use with an external antenna and intended for use in a
fixed location
bit: binary digit
block: smallest quantity of information that is sent over the radio channel
NOTE: A constant number of useful bits are always sent together with the corresponding redundancy bits.
conducted measurements: measurements which are made using direct 50 Ω connection to the equipment under test
data transmission systems: systems which transmit and/or receive data and/or digitized voice
facilities socket: any socket intended for purposes other than the transmission of voice
NOTE 1: The purpose of the socket and required input signals are specified by the manufacturer.
NOTE 2: The audio frequency input socket and the facilities socket may be the same physical socket in some
implementations.
handportable station: equipment either fitted with an antenna connector or an integral antenna, or both, normally used
on a stand-alone basis, to be carried on a person or held in the hand
integral antenna: antenna designed to be connected to the equipment without the use of a 50 Ω external connector and
considered to be part of the equipment
NOTE: An integral antenna may be fitted internally or externally to the equipment.
Listen Before Transmit mode (LBT): monitoring mode in which the RF channel is checked for activity before
transmitting
message: user data to be transferred in one or more packets in a session
mobile station: mobile equipment fitted with an antenna connector, for use with an external antenna, normally used in
a vehicle or as a transportable station
necessary bandwidth: for a given class of emission, the width of the frequency band which is just sufficient to ensure
the transmission of information at the rate and with the quality required under specified conditions
NOTE: See ITU-R Recommendation SM.329-10 [4].
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11 ETSI EN 301 166-1 V1.3.2 (2009-11)
packet: one block or a contiguous stream of blocks sent by one (logical) transmitter to one particular receiver or one
particular group of receivers
radiated measurements: measurements which involve the absolute measurement of a radiated field
session: set of inter-related exchange of packets occupying one or several windows or part thereof (if applicable)
NOTE: A session corresponds to a complete interactive procedure for interchanging data between users,
comprising initiation, data transmission and termination procedures. The session can be short
(e.g. 2 packets), or long (e.g. one full page of text).
switching range: maximum frequency range, as specified by the manufacturer, over which the receiver or the
transmitter can be operated within the alignmen
...