SIST EN 300 135-1 V1.1.2:2003

SLOVENSKI STANDARD
SIST EN 300 135-1 V1.1.2:2003
01-december-2003
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ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Angle-modulated
Citizens Band radio equipment (CEPT PR 27 Radio Equipment); Part 1: Technical
characteristics and methods of measurement
Ta slovenski standard je istoveten z: EN 300 135-1 Version 1.1.2
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
SIST EN 300 135-1 V1.1.2:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 300 135-1 V1.1.2:2003

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SIST EN 300 135-1 V1.1.2:2003
ETSI EN 300 135-1 V1.1.2 (2000-08)
European Standard (Telecommunications series)
Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Angle-modulated Citizens Band radio equipment
(CEPT PR 27 Radio Equipment);
Part 1: Technical characteristics and methods of measurement

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SIST EN 300 135-1 V1.1.2:2003
2 ETSI EN 300 135-1 V1.1.2 (2000-08)
Reference
REN/ERM-RP02-052-1
Keywords
CB, radio, testing
ETSI
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Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2000.
All rights reserved.
ETSI

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SIST EN 300 135-1 V1.1.2:2003
3 ETSI EN 300 135-1 V1.1.2 (2000-08)
Contents
Intellectual Property Rights .6
Foreword .6
Introduction.7
1 Scope.8
2 References.8
3 Definition, abbreviations and symbols .9
3.1 Definitions. 9
3.2 Abbreviations. 9
3.3 Symbols. 9
4 General.9
4.1 Presentation of equipment for testing purposes. 9
4.2 Mechanical and electrical design . 10
4.2.1 General . 10
4.2.2 Controls. 10
4.2.3 Marking. 10
4.3 Interpretation of the measurement results . 10
5 Technical characteristics .11
5.1 Common characteristics. 11
5.1.1 Frequency band . 11
5.1.2 Carrier frequencies and channel numbers. 11
5.1.3 Channel separation . 11
5.1.4 Multi-channel equipment. 11
5.1.5 Type of modulation . 11
5.1.6 Push-to-talk (ptt) and voice activated switch. 12
5.1.7 Controls. 12
5.1.8 Combination with other equipment . 12
5.2 Transmitter parameter limits . 12
5.2.1 Frequency error . 12
5.2.2 Power. 12
5.2.3 Frequency deviation . 12
5.2.4 Unwanted amplitude modulation. 12
5.2.5 Adjacent channel power . 12
5.2.6 Spurious emissions of the transmitter. 13
5.2.7 Transient frequency behaviour of the transmitter . 14
5.2.8 Synthesizers and Phase Locked Loop (PLL) systems.14
5.3 Receiver parameter limits . 14
5.3.1 Maximum usable sensitivity . 14
5.3.2 Adjacent channel selectivity. 14
5.3.3 Intermodulation response rejection . 14
5.3.4 Spurious radiations. 15
6 Test conditions, power sources and ambient temperatures .15
6.1 Normal and extreme test conditions. 15
6.2 Test power source . 15
6.3 Normal test conditions . 16
6.3.1 Normal temperature and humidity. 16
6.3.2 Normal test power source. 16
6.3.2.1 Mains voltage and frequency. 16
6.3.2.2 Regulated lead-acid battery power sources on vehicles. 16
6.3.2.3 Other power sources . 16
6.4 Extreme test conditions. 16
6.4.1 Extreme temperatures. 16
6.4.2 Extreme test source voltages . 16
ETSI

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SIST EN 300 135-1 V1.1.2:2003
4 ETSI EN 300 135-1 V1.1.2 (2000-08)
6.4.2.1 Mains voltage. 16
6.4.2.2 Regulated lead-acid battery power sources on vehicles. 16
6.4.2.3 Power sources using other types of battery. 17
6.4.2.4 Other power sources . 17
6.5 Procedure for tests at extreme temperatures. 17
6.5.1 Test procedure. 17
7 General conditions.17
7.1 Arrangements for test signals applied to the receiver input. 17
7.2 Receiver mute or squelch facility. 17
7.3 Receiver rated audio output power . 18
7.4 Normal test modulation. 18
7.5 Artificial antenna. 18
7.6 Test fixture. 18
7.7 Arrangement for test signals at the input of the transmitter. 18
7.8 Test site and general arrangements for radiated measurements.18
8 Method of measurement for transmitter parameters.19
8.1 Frequency error. 19
8.1.1 Definition . 19
8.1.2 Method of measurement . 19
8.2 Transmitter carrier power. 19
8.2.1 Definition . 19
8.2.2 Method of measurement (for equipment other than equipment with integral antenna only). 19
8.2.3 Method of measurement for equipment with integral antenna. 19
8.3 Maximum frequency deviation. 20
8.3.1 Maximum permissible frequency deviation. 20
8.3.1.1 Definition. 20
8.3.1.2 Method of measurement . 20
8.4 Unwanted amplitude modulation . 20
8.4.1 Method of measurement . 20
8.5 Adjacent channel power. 21
8.5.1 Definition . 21
8.5.2 Method of measurement . 21
8.6 Spurious emissions. 21
8.6.1 Definition . 21
8.6.2 Method of measuring the power level in a specified load, subclause 8.6.1 (a). 22
8.6.3 Method of measuring the effective radiated power, subclause 8.6.1 (b) . 22
8.6.4 Method of measuring the effective radiated power, subclause 8.6.1 (c). 23
8.7 Transient frequency behaviour of the transmitter. 23
8.7.1 Definitions. 23
8.7.2 Method of measurement . 23
9 Methods of measurement for receiver parameters.26
9.1 Maximum usable sensitivity. 26
9.1.1 Definition . 26
9.1.2 Method of measuring the SND/ND ratio. 26
9.2 Adjacent channel selectivity. 26
9.2.1 Definition . 26
9.2.2 Method of measurement . 26
9.3 Intermodulation response rejection. 27
9.3.1 Definition . 27
9.3.2 Method of measurement . 27
9.4 Spurious radiations. 27
9.4.1 Definition . 27
9.4.2 Method of measuring the power level in a specified load, subclause 9.4.1 (a). 28
9.4.3 Method of measuring the effective radiated power, subclause 9.4.1 (b) . 28
9.4.4 Method of measuring the effective radiated power, subclause 9.4.1 (c). 28
ETSI

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SIST EN 300 135-1 V1.1.2:2003
5 ETSI EN 300 135-1 V1.1.2 (2000-08)
10 Measurement uncertainty.29
Annex A (normative): Radiated measurement .30
A.1 Test sites and general arrangements for measurements involving the use of radiated fields.30
A.1.1 Outdoor test site . 30
A.1.1.2 Test site for handportable stations. 30
A.1.2 Test antenna . 31
A.1.3 Substitution antenna. 31
A.1.4 Optional additional indoor site. 32
A.2 Guidance on the use of radiation test sites .32
A.2.1 Measuring distance . 33
A.2.2 Test antenna . 33
A.2.3 Substitution antenna. 33
A.2.4 Artificial antenna. 33
A.2.5 Auxiliary cables . 33
A.3 Further optional alternative indoor test site using an anechoic chamber .33
A.3.1 Example of the construction of a shielded anechoic chamber. 34
A.3.2 Influence of parasitic reflections in anechoic chambers. 34
A.3.3 Calibration of the shielded anechoic chamber. 35
Annex B (normative): Specification for adjacent channel power measurement
arrangements .37
B.1 Power measuring receiver specification .37
B.1.1 IF filter . 37
B.1.2 Variable attenuator. 38
B.1.3 Rms value indicator . 38
B.1.4 Oscillator and amplifier . 38
History.39
ETSI

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SIST EN 300 135-1 V1.1.2:2003
6 ETSI EN 300 135-1 V1.1.2 (2000-08)
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://www.etsi.org/ipr).
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 EN covering the Electromagnetic compatibility and Radio spectrum
Matters (ERM); Angle-modulated Citizens Band radio equipment (CEPT PR 27 Radio Equipment), as identified below:
Part 1: "Technical characteristics and methods of measurement";
Part 2: "Harmonized EN covering essential requirements under article 3.2 of R&TTE Directive".
The present document concerns only angle modulation. The existing national Citizens' Band standards or specifications
which also permit the use of other forms of modulation (including amplitude and single sideband) will not be affected by
the adoption of the present document.
The present document is based upon CEPT Recommendation T/R 20-02 [1], originally prepared by the CEPT R22
Committee for use by Citizens' Band (CB) radio equipment.
Angle modulation shall be used for radio equipment covered by the present document, with an audio pre-emphasis
characteristic for the transmitter, and audio de-emphasis for the receiver.
Administrative arrangements (e.g. for type approval, marking, antennas), and conditions for the use of CB angle
modulated radio (CEPT PR 27) are to be found in CEPT Recommendations T/R 20-02 [1] and T/R 20-07 [2].
Every ETS prepared by ETSI is a voluntary standard. The present document contains text concerning type approval of
the equipment to which it relates. This text should be considered only as guidance and does not make the present
document mandatory.
The technical specifications relevant to the EMC Directive are listed in annex C.
National transposition dates
Date of latest announcement of this EN (doa): 31 October 2000
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 April 2001
Date of withdrawal of any conflicting National Standard (dow): 30 April 2001
ETSI

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SIST EN 300 135-1 V1.1.2:2003
7 ETSI EN 300 135-1 V1.1.2 (2000-08)
Introduction
The present document is intended to specify the minimum performance and the methods of measurement of Citizens'
Band radio equipment (CEPT PR 27) as specified in the Scope.
Clause 5 provides the corresponding limits. These limits have been chosen to ensure an acceptable grade of service and
to minimize harmful interference to other equipment and services.
The present document will also be used by European notified accredited test laboratories for the assessment of the
performance of the equipment. In order to avoid any ambiguity in that assessment, the present document contains
instructions for the presentation of equipment for type testing purposes (clause 4), measurement methods (clauses 8 and
9) and conditions (clauses 6 and 7).
The present document was drafted on the assumption that:
a) the type test measurements would be performed only once in one of the accredited test laboratories, and then
accepted by the various authorities in order to obtain type approval;
b) if equipment available on the market is required to be checked it shall be tested in accordance with the methods
specified in the present document. The present document covers base stations, mobile stations and two categories
of hand-portable stations.
ETSI

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SIST EN 300 135-1 V1.1.2:2003
8 ETSI EN 300 135-1 V1.1.2 (2000-08)
1 Scope
The present document covers the minimum characteristics considered necessary in order to make the best use of the
available frequencies. It does not necessarily include all the characteristics which may be required by a user, nor does it
necessarily represent the optimum performance achievable. It applies to angle modulated Citizens' Band radio
equipment (CEPT PR 27) operation in the frequency band 26,960 MHz to 27,410 MHz with channel separations of
10 kHz, and intended for analogue speech.
The present document applies to equipment with a socket for an external antenna and to equipment with an integral
antenna.
In the case of equipment which is intended for use with either an integral antenna or an external antenna, the equipment
shall be measured as equipment intended for use with an external antenna and shall meet the appropriate limits. In
addition to this, the transmitter characteristics:
- transmitter carrier power;
- spurious emissions of the transmitter;
and the receiver characteristic:
- spurious radiations of the receiver;
shall be measured as for equipment for use with an integral antenna and the appropriate limits shall be met.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication, edition number, Version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest Version applies.
• A non-specific reference to an ETS shall also be taken to refer to later Versions published as an EN with the
same number.
[1] CEPT Recommendation T/R 20-02 (1972): "Low-Power Radio Transmitter-Receiv
...