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SIST EN 300 135-1 V1.2.1:2008
01-september-2008
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Electromagnetic compatibility and Radio spectrum Matters (ERM) - Land Mobile Service
- Citizens' Band (CB) radio equipment - Angle-modulated Citizens' Band radio equipment
(PR 27 Radio Equipment) - Part 1: Technical characteristics and methods of
measurement
Ta slovenski standard je istoveten z: EN 300 135-1 Version 1.2.1
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 V1.2.1:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 300 135-1 V1.2.1:2008
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SIST EN 300 135-1 V1.2.1:2008
ETSI EN 300 135-1 V1.2.1 (2008-02)
European Standard (Telecommunications series)
Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Land Mobile Service;
Citizens' Band (CB) radio equipment;
Angle-modulated Citizens' Band radio equipment
(PR 27 Radio Equipment);
Part 1: Technical characteristics and
methods of measurement
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SIST EN 300 135-1 V1.2.1:2008
2 ETSI EN 300 135-1 V1.2.1 (2008-02)
Reference
REN/ERM-TGDMR-267-1
Keywords
CB, radio, testing
ETSI
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© European Telecommunications Standards Institute 2008.
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SIST EN 300 135-1 V1.2.1:2008
3 ETSI EN 300 135-1 V1.2.1 (2008-02)
Contents
Intellectual Property Rights.6
Foreword.6
1 Scope.7
2 References.8
2.1 Normative references.8
2.2 Informative references.8
3 Definitions, symbols and abbreviations .8
3.1 Definitions.8
3.2 Symbols.9
3.3 Abbreviations.9
4 General.9
4.1 Presentation of equipment for testing purposes.9
4.1.1 Choice of model for testing .9
4.1.1.1 Auxiliary test equipment .10
4.1.1.2 Declarations by the provider .10
4.2 Testing of equipment that does not have an external 50 Ω RF connector (integral antenna equipment) .10
4.3 Mechanical and electrical design.10
4.3.1 General.10
4.3.2 Controls.10
4.3.3 Push-to-talk (ptt) and voice activated switch.10
4.3.4 Combination with other equipment .10
4.4 Declaration of conformity .11
5 Test conditions, power sources and ambient temperatures .11
5.1 Normal and extreme test conditions .11
5.2 Test power source.11
5.3 Normal test conditions.11
5.3.1 Normal temperature and humidity.11
5.3.2 Normal test power source .11
5.3.2.1 Mains voltage.11
5.3.2.2 Regulated lead-acid battery power sources used on vehicles.12
5.3.2.3 Other power sources.12
5.4 Extreme test conditions .12
5.4.1 Extreme temperatures.12
5.4.2 Extreme test source voltages.12
5.4.2.1 Mains voltage.12
5.4.2.2 Regulated lead-acid battery power sources used on vehicles.12
5.4.2.3 Power sources using other types of batteries.12
5.4.2.4 Other power sources.13
5.5 Procedure for tests at extreme temperatures.13
6 General test conditions .13
6.1 Arrangements for test signals applied to the receiver input.13
6.2 Receiver mute or squelch facility .13
6.3 Receiver rated audio output power.13
6.4 Normal test modulation.13
6.5 Artificial antenna.13
6.6 Test fixture.14
6.7 Arrangement for test signals at the input of the transmitter .14
6.8 Test site and general arrangements for radiated measurements.14
7 Method of measurement for transmitter parameters .14
7.1 Frequency error.14
7.1.1 Definition.14
7.1.2 Method of measurement.14
ETSI
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SIST EN 300 135-1 V1.2.1:2008
4 ETSI EN 300 135-1 V1.2.1 (2008-02)
7.1.3 Limit.15
7.2 Transmitter carrier power.15
7.2.1 Definition.15
7.2.2 Method of measurement.15
7.2.2.1 Method of measurement (for equipment other than equipment with integral antenna only) .15
7.2.2.2 Method of measurement for equipment with integral antenna.15
7.2.3 Limits.16
7.3 Maximum permissible frequency deviation .16
7.3.1 Definition.16
7.3.2 Method of measurement.16
7.3.3 Limit.16
7.4 Adjacent channel power .16
7.4.1 Definition.16
7.4.2 Method of measurement.16
7.4.3 Limit.17
7.5 Unwanted emissions in the spurious domain.17
7.5.1 Definition.17
7.5.2 Method of measurement.17
7.5.2.1 Method of measuring the power level in a specified load.17
7.5.2.2 Method of measuring the effective radiated power.18
7.5.2.3 Method of measuring the effective radiated power.18
7.5.3 Limits.18
7.6 Transient behaviour of the transmitter.19
7.6.1 Definitions.19
7.6.2 Method of measurement.20
7.6.3 Limits.21
8 Methods of measurement for receiver parameters .22
8.1 Spurious radiations.22
8.1.1 Definition.22
8.1.2 Method of measurement.22
8.1.2.1 Method of measuring the power level in a specified load.22
8.1.2.2 Method of measuring the effective radiated power.22
8.1.2.3 Method of measuring the effective radiated power.23
8.1.3 Limits.23
9 Measurement uncertainty .23
Annex A (normative): Radiated measurement.25
A.1 Test sites and general arrangements for measurements involving the use of radiated fields .25
A.1.1 Outdoor test site .25
A.1.1.1 Test site for handportable stations .25
A.1.2 Test antenna.26
A.1.3 Substitution antenna.26
A.1.4 Optional additional indoor site .27
A.2 Guidance on the use of radiation test sites .27
A.2.1 Measuring distance.28
A.2.2 Test antenna.28
A.2.3 Substitution antenna.28
A.2.4 Artificial antenna.28
A.2.5 Auxiliary cables.28
A.3 Further optional alternative indoor test site using an anechoic chamber .28
A.3.1 Example of the construction of a shielded anechoic chamber.29
A.3.2 Influence of parasitic reflections in anechoic chambers.29
A.3.3 Calibration of the shielded anechoic chamber.30
Annex B (normative): Specification for adjacent channel power measurement
arrangements.32
B.1 Power measuring receiver specification.32
B.1.1 IF filter.32
ETSI
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SIST EN 300 135-1 V1.2.1:2008
5 ETSI EN 300 135-1 V1.2.1 (2008-02)
B.1.2 Variable attenuator.33
B.1.3 Rms value indicator.33
B.1.4 Oscillator and amplifier.33
Annex C (informative): Bibliography.34
History .35
ETSI
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SIST EN 300 135-1 V1.2.1:2008
6 ETSI EN 300 135-1 V1.2.1 (2008-02)
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 angle-modulated Citizens' Band (CB) radio
equipment (PR 27 Radio Equipment), 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".
The present document concerns only angle modulation. The existing national Citizens' Band (CB) 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.
National transposition dates
Date of adoption of this EN: 22 February 2008
Date of latest announcement of this EN (doa): 31 May 2008
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 November 2008
Date of withdrawal of any conflicting National Standard (dow): 30 November 2008
ETSI
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SIST EN 300 135-1 V1.2.1:2008
7 ETSI EN 300 135-1 V1.2.1 (2008-02)
1 Scope
The present document covers the technical requirements for transmitters and receivers used in stations of angle
modulated Citizens' Band (CB) radio equipment.
It applies to angle modulated Citizens' Band radio equipment (PR 27) operation in all or part of the frequency band
from 26,960 MHz to 27,410 MHz with channel separations of 10 kHz, and intended for analogue speech in accordance
with CEPT/ERC/Decision (98)11 [2]. This includes the possibility of data transmissions within the speech channel,
where applicable.
The equipment operates on one or more channels of the carrier frequencies as shown in table 1.
Table 1: Carrier frequencies
Carrier Channel Carrier Channel
frequencies Number frequencies Number
26,965 MHz 1 27,215 MHz 21
26,975 MHz 2 27,225 MHz 22
26,985 MHz 3 27,235 MHz 24
27,005 MHz 4 27,245 MHz 25
27,015 MHz 5 27,255 MHz 23
27,025 MHz 6 27,265 MHz 26
27,035 MHz 7 27,275 MHz 27
27,055 MHz 8 27,285 MHz 28
27,065 MHz 9 27,295 MHz 29
27,075 MHz 10 27,305 MHz 30
27,085 MHz 11 27,315 MHz 31
27,105 MHz 12 27,325 MHz 32
27,115 MHz 13 27,335 MHz 33
27,125 MHz 14 27,345 MHz 34
27,135 MHz 15 27,355 MHz 35
27,155 MHz 16 27,365 MHz 36
27,165 MHz 17 27,375 MHz 37
27,175 MHz 18 27,385 MHz 38
27,185 MHz 19 27,395 MHz 39
27,205 MHz 20 27,405 MHz 40
Transmission and reception takes place on the same channel (single frequency simplex mode).
The present document can also be used for any equipment using national regulations on Citizens' Band (CB) permitting
the use of channels outside of the carrier frequencies shown in table 1 and within the frequency range from 26 MHz to
28 MHz can use the present document.
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.
ETSI
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SIST EN 300 135-1 V1.2.1:2008
8 ETSI EN 300 135-1 V1.2.1 (2008-02)
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.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
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] 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".
2.2 Informative references
[2] CEPT/ERC/DEC(98)11: "ERC Decision of 23 November 1998 on the harmonised frequency band
to be designated for CEPT PR 27 radio equipment and on the implementation of the technical
standard for this equipment".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
angle modulation: modulation with an audio pre-emphasis characteristic for the FM transmitter and an audio
de-emphasis characteristic for the receiver
base station: equipment fitted with an antenna socket, for use with an external antenna, and intended for use in a fixed
location
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
ETSI
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SIST EN 300 135-1 V1.2.1:2008
9 ETSI EN 300 135-1 V1.2.1 (2008-02)
integral antenna: antenna designed as a fixed part of the equipment, without the use of an external connector and as
such which can not be disconnected from the equipment by the user
NOTE: An integral antenna may be fitted internally or externally.
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
3.2 Symbols
For the purposes of the present document, the following symbols apply:
Eo reference field strength, (see annex A)
ptt push-to-talk
RBW Resolution BandWidth
Ro reference distance, (see annex A)
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
CB Citizens' Band
FM Frequency Modulation
IF Intermediate Frequency
RF Radio Frequency
T maximum Temperature
max
T minimum Temperature
min
Tx Transmitter
V maximum Voltage
max
V minimum Voltage
min
4 General
4.1 Presentation of equipment for testing purposes
Each equipment to be tested submitted for testing shall fulfil the requirements of the present document on all
frequencies over which it is intended to operate.
The provider or manufacturer shall declare the frequency ranges, the range of oper
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