ETSI EN 301 843-1 V1.2.1 (2004-06)
Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for marine radio equipment and services; Part 1: Common technical requirements
Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for marine radio equipment and services; Part 1: Common technical requirements
REN/ERM-EMC-234-1
Elektromagnetna združljivost in zadeve v zvezi z radijskim spektrom (ERM) - Standard elektromagnetne združljivosti (EMC) za pomorsko radijsko opremo in storitve - 1. del: Splošne tehnične zahteve
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2005
(OHNWURPDJQHWQD]GUXåOMLYRVWLQ]DGHYHY]YH]L]UDGLMVNLPVSHNWURP (50
6WDQGDUGHOHNWURPDJQHWQH]GUXåOMLYRVWL (0& ]DSRPRUVNRUDGLMVNRRSUHPRLQ
VWRULWYHGHO 6SORãQHWHKQLþQH]DKWHYH
Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic
Compatibility (EMC) standard for marine radio equipment and services; Part 1: Common
technical requirements
Ta slovenski standard je istoveten z: EN 301 843-1 Version 1.2.1
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
47.020.70 Navigacijska in krmilna Navigation and control
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
Candidate Harmonized European Standard (Telecommunications series)
Electromagnetic compatibility
and Radio spectrum Matters (ERM);
ElectroMagnetic Compatibility (EMC)
standard for marine radio equipment and services;
Part 1: Common technical requirements
2 ETSI EN 301 843-1 V1.2.1 (2004-06)
Reference
REN/ERM-EMC-234-1
Keywords
EMC, maritime, radio, regulation
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ETSI
3 ETSI EN 301 843-1 V1.2.1 (2004-06)
Contents
Intellectual Property Rights.5
Foreword.5
Introduction .6
1 Scope.9
2 References.10
3 Definitions and abbreviations.11
3.1 Definitions.11
3.2 Abbreviations.12
4 Test conditions.12
4.1 General.12
4.2 Arrangements for test signals .13
4.2.1 Arrangements for test signals at the input of transmitters.13
4.2.2 Arrangements for test signals at the output of transmitters.13
4.2.3 Arrangements for test signals at the input of receivers .13
4.2.4 Arrangements for test signals at the output of receivers .14
4.2.5 Arrangements for testing transmitter and receiver together (as a system) .14
4.3 RF exclusion band of radio communications equipment.14
4.4 Narrow band responses of receivers or receivers which are part of transceivers .15
4.5 Normal test modulation.16
5 Performance assessment.16
5.1 General.16
5.2 Equipment which can provide a continuous communication link .16
5.3 Equipment which does not provide a continuous communication link .17
5.4 Ancillary equipment.17
5.5 Equipment classification.18
6 Performance criteria.18
6.1 Performance criteria A for continuous phenomena applied to transmitters and receivers.18
6.2 Performance criteria B for transient phenomena applied to transmitters and receivers .19
6.3 Performance criteria C applied to power supply failure .19
6.4 Performance check.19
6.5 Performance criteria for equipment which does not provide a continuous communication link.19
6.6 Performance criteria for ancillary equipment tested on a stand alone basis .20
7 Applicability overview tables.20
7.1 EMC emission.20
7.2 Immunity.21
8 Methods of measurement and limits for EMC emissions .21
8.1 Test configuration.21
8.2 Enclosure of ancillary equipment measured on a stand alone basis .22
8.2.1 Definition.22
8.2.2 Test method.22
8.2.3 Limits.23
8.3 DC power input/output ports.23
8.3.1 Definition.23
8.3.2 Test method.23
8.3.3 Limits.24
8.4 AC mains power input/output ports .24
8.4.1 Definition.24
8.4.2 Test method.24
8.4.3 Limits.25
9 Test methods and levels for immunity tests .25
ETSI
4 ETSI EN 301 843-1 V1.2.1 (2004-06)
9.1 Test configuration.25
9.2 Radio frequency electromagnetic field (80 MHz to 2 000 MHz).26
9.2.1 Definition.26
9.2.2 Test method.26
9.2.3 Performance criteria.26
9.3 Electrostatic discharge.26
9.3.1 Definition.27
9.3.2 Test method.27
9.3.3 Performance criteria.27
9.4 Fast transients, differential and common mode.27
9.4.1 Definition.27
9.4.2 Test method.28
9.4.3 Performance criteria.28
9.5 Radio frequency, common mode.28
9.5.1 Definition.28
9.5.2 Test method.28
9.5.3 Performance criteria.29
9.6 Power supply variations.29
9.6.1 Power supply short term variations.29
9.6.1.1 Definition.29
9.6.1.2 Test method.29
9.6.1.3 Performance criteria.30
9.6.2 Power supply failure.30
9.6.2.1 Definition.30
9.6.2.2 Test method.30
9.6.2.3 Performance criteria.30
9.7 Surges.30
9.7.1 Definition.30
9.7.2 Test method.30
9.7.3 Performance criteria.31
Annex A (normative): Clauses of the present document relevant for compliance with the
essential requirements of EC Council Directives.32
Annex B (informative): The EN title in the official languages .33
History .34
ETSI
5 ETSI EN 301 843-1 V1.2.1 (2004-06)
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 Candidate Harmonized European Standard (Telecommunications series) has been produced by ETSI Technical
Committee Electromagnetic compatibility and Radio spectrum Matters (ERM).
The present document has been produced by ETSI in response to a mandate from the European Commission issued
under Council Directive 98/34/EC [15] (as amended) laying down a procedure for the provision of information in the
field of technical standards and regulation.
The present document is intended to become a Harmonized Standard, the reference of which will be published in the
Official Journal of the European Communities referencing the Council Directive on the approximation of the laws of
the Member States relating to electromagnetic compatibility ("the EMC Directive") (89/336/EEC [4] as amended), and
Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and
telecommunications terminal equipment and the mutual recognition of their conformity ("the R&TTE Directive" [5]).
Technical specifications relevant to the EMC Directive and the R&TTE Directive are given in annex A.
The present document is based upon the standard for marine navigational equipment EN 60945 [3], and other standards
where appropriate, to meet the essential requirements of Council Directives 89/336/EEC [4] and 1999/5/EC [5]
respectively.
The present document, and its product related parts are based on the current EMC product standards for marine radio
equipment published by ETSI. It should be noted that two of these EMC standards have also been published in the
Official Journal of the European Commission referring to the EMC Directive.
The present document is part 1 of a multi-part deliverable covering the ElectroMagnetic Compatibility (EMC) standard
for marine radio equipment and services, as identified below:
Part 1: "Common technical requirements";
Part 2: "Specific conditions for VHF radiotelephone transmitters and receivers";
Part 4: "Specific conditions for Narrow-Band Direct-Printing (NBDP) NAVTEX receivers";
Part 5: "Specific conditions for MF/HF radiotelephone transmitters and receivers".
National transposition dates
Date of adoption of this EN: 4 June 2004
Date of latest announcement of this EN (doa): 30 September 2004
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 March 2005
Date of withdrawal of any conflicting National Standard (dow): 31 March 2006
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6 ETSI EN 301 843-1 V1.2.1 (2004-06)
Introduction
The present document is part of a set of standards designed to fit in a modular structure to cover all radio and
telecommunications terminal equipment under the R&TTE Directive [5]. Each standard is a module in the structure.
The modular structure is shown in figure 1.
Disability*
3.3f
Emergency*
3.3e
Fraud*
3.3d
3.3c
Privacy*
No harm to the network*
3.3b
* If needed
Scoped by
Interworking via the network*
equipment
3.3a class or type
Interworking with the network
Use of spectrum
3.2
New radio harmonized standards
Spectrum
Scoped by frequency and/or equipment type
Radio Product EMC
EN 301 489 multi-part EMC standard
3.1b
EMC
Generic and product standards also notified under EMC Directive
- If needed, new standards for human exposure to
Electromagnetic Fields,
- if needed, new standards for acoustic safety
3.1a
Standards also notified under LV Directive
Safety
Non-radio Radio (RE)
TTE Non-TTE
Figure 1: Modular structure for the various standards used under the R&TTE Directive
ETSI
7 ETSI EN 301 843-1 V1.2.1 (2004-06)
The left hand edge of the figure 1 shows the different clauses of article 3 of the R&TTE Directive [5].
For article 3.3 various horizontal boxes are shown. Dotted lines indicate that at the time of publication of the present
document essential requirements in these areas have to be adopted by the Commission. If such essential requirements
are adopted, and as far and as long as they are applicable, they will justify individual standards whose scope is likely to
be specified by function or interface type.
The vertical boxes show the standards under article 3.2 for the use of the radio spectrum by radio equipment. The
scopes of these standards are specified either by frequency (normally in the case where frequency bands are
harmonized) or by radio equipment type.
For article 3.1b the diagram shows EN 301 489, the multi-part product EMC standard for radio used under the
EMC Directive [4].
For article 3.1a the diagram shows the existing safety standards currently used under the LV Directive [16] and new
standards covering human exposure to electromagnetic fields. New standards covering acoustic safety may also be
required.
The bottom of the figure shows the relationship of the standards to radio equipment and telecommunications terminal
equipment. A particular equipment may be radio equipment, telecommunications terminal equipment or both. A radio
spectrum standard will apply if it is radio equipment. An article 3.3 standard will apply as well only if the relevant
essential requirement under the R&TTE Directive [5] is adopted by the Commission and if the equipment in question is
covered by the scope of the corresponding standard. Thus, depending on the nature of the equipment, the essential
requirements under the R&TTE Directive [5] may be covered in a set of standards.
The modularity principle has been taken because:
• it minimizes the number of standards needed. Because equipment may, in fact, have multiple interfaces and
functions it is not practicable to produce a single standard for each possible combination of functions that may
occur in an equipment;
• it provides scope for standards to be added:
- under article 3.2 when new frequency bands are agreed; or
- under article 3.3 should the Commission take the necessary decisions without requiring alteration of
standards that are already published;
• it clarifies, simplifies and promotes the usage of Harmonized Standards as the relevant means of conformity
assessment.
Figure 2 gives an enlargement of the EMC layer which is judged to be appropriate in view of this harmonized standard
derivation.
ETSI
8 ETSI EN 301 843-1 V1.2.1 (2004-06)
Separate ENs scoped for
Planned specific products/frequencies
marine radio
Includes:
Harmonized
- antenna port emission and immunity (if appropriate)
Standards
Article
- "enclosure" or cabinet radiation
3.2
NB: The scope of the product related parts
in the new marine radio EMC harmonized
R&TTE
standard may be wider than the scopes of
Directive
the new marine radio harmonised standards
New marine radio EMC Harmonized Standard
Parts scoped for
Part 2 Part 4 Part n
Part 3
specific products/frequencies
Radio
void NAVTEX
Telephone
Includes:
- Performance criteria
Clauses 1 to 7 in old radio product EMC ET Ss
- Test conditions incl modulation
Amends or replaces measurements
Part 1: Common EMC requirements
in basic standards as necessary
Phenomena; Limits
Article EMC
Normative references to:
3.1b Directive
- EN 60 945
- EN 61 000-6-3
- EN 61 000-6-1
(which refer to base standards for measurements)
Covers all ports EXCEPT:
- antenna emisson and immunity (if appropriate)
- “enclosure” or cabinet (radiation)
Clauses 8 and 9 in old radio product EMC ETSs
Existing generic and basic EMC standards
Article
3.1a Safety and health
Figure 2: The new radio EMC harmonized standard
The current EMC product standards for marine radio equipment are all structured as follows:
Clauses 1 to 6 contain information specific to the type of radio equipment covered by the present document:
- clause 1: Scope;
- clause 2: References;
- clause 3: Definitions and abbreviations;
- clause 4: Test conditions and configurations;
- clause 5: Performance assessment; and
- clause 6: Performance criteria.
Clause 7 contains the applicability overview tables for emission and immunity.
Clause 8 contains the emission requirements and clause 9 contains the immunity requirements. The requirements set out
in these clauses are however identical for all types of marine radio equipment.
For these standards the following structure applies:
- the present document contains all common technical requirements for emission and immunity;
- separate parts cover product related specific marine radio equipment test conditions, test arrangements,
performance criteria, normal test modulation, etc. Further work may be underway in the development of
specific parts for other types of marine radio communications equipment;
- one new clause has been added to each of the specific radio parts of the present document entitled "Special
conditions", if appropriate. This clause contains any deviation from the common requirements set out in the
present document.
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9 ETSI EN 301 843-1 V1.2.1 (2004-06)
1 Scope
The present document contains the common requirements for marine radio communications equipment and associated
ancillary equipment, in respect of ElectroMagnetic Compatibility (EMC).
The provisions of the present document apply to marine radio equipment not covered in the scope of the Council
Directive on marine equipment (the "Marine Equipment Directive" 96/98/EC [6]).
Product dependent arrangements necessary to perform the EMC tests on dedicated types of marine radio
communications equipment, and the assessment of test results, are detailed in the appropriate product related parts of
the present document.
The present document, together with the product related part, specifies the applicable EMC tests, the methods of
measurement, the limits and the performance criteria for marine radio equipment and associated ancillary equipment.
In case of differences (for instance concerning special conditions, definitions, abbreviation) between the present
document and the relevant product related part of the present document, the product related part takes precedence.
For the further content of the present document, the expression "radio equipment" is taken to mean marine radio
communications equipment, in each individual case.
Technical specifications related to the antenna port of radio equipment and emissions from the enclosure port of radio
equipment and combinations of radio and associated ancillary equipment are not included in the present document.
Such technical specifications are normally found in the relevant product standards for the effective use of the radio
spectrum.
The environment classification used in the present document refers to the environment classification used in:
- EN 60945 [3] for marine navigational equipment,
that means to the maritime environment.
Marine radio communications equipment meeting the EMC requirements set out in EN 60945 [3] is deemed to meet
also the EMC requirements for the residential, commercial and light industrial environment as defined in
EN 61000-6-3 [1] and EN 61000-6-1 [2].
The EMC requirements have been selected to ensure an adequate level of compatibility for apparatus intended to be
used in the maritime environment. The levels, however, do not cover extreme cases which may occur in any location
but with low probability of occurrence.
Compliance of radio equipment to the requirements of the present document does not signify compliance to any
requirements related to spectrum management or to the use of the equipment (licensing requirements).
Compliance to the requirements of the present document does not signify compliance to any safety requirements.
However, it is the responsibility of the assessor of the equipment to record in the test report any observations regarding
the test sample becoming dangerous or unsafe as a result of the application of the tests called for in the present
document.
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10 ETSI EN 301 843-1 V1.2.1 (2004-06)
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 and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
[1] EN 61000-6-3 (2001): "Electromagnetic compatibility (EMC) - Part 6-3: Generic standards -
Emission standard for residential, commercial and light-industrial environments".
[2] EN 61000-6-1 (2001): "Electromagnetic compatibility (EMC) - Part 6-1: Generic standards -
Immunity for residential, commercial and light-industrial environments".
[3] EN 60945 (2002): "Maritime navigation and radiocommunication equipment and systems -
General requirements - Methods of testing and required test results".
[4] Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws of the Member
States relating to electromagnetic compatibility (EMC Directive).
[5] Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio
equipment and telecommunications terminal equipment and the mutual recognition of their
conformity (R&TTE Directive).
[6] Council Directive 96/98/EC of 20 December 1996 on marine equipment.
[7] CISPR 16-1 (2003): "Specification for radio disturbance and immunity measuring apparatus and
methods - Part 1: Radio disturbance and immunity measuring apparatus".
[8] EN 61000-4-2 (1995): "Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement
techniques - Electrostatic discharge immunity test".
[9] EN 61000-4-3 (1996): "Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement
techniques - Radiated, radio-frequency, electromagnetic field immunity test".
[10] EN 61000-4-4 (1995): "Electromagnetic compatibility (EMC) - Part 4-4: Testing and measurement
techniques - Electrical fast transient/burst immunity test".
[11] EN 61000-4-5 (1995): "Electromagnetic compatibility (EMC) - Part 4-5: Testing and measurement
techniques - Surge immunity test".
[12] EN 61000-4-6 (1996): "Electromagnetic compatibility (EMC) - Part 4-6: Testing and measurement
techniques - Immunity to conducted disturbances, induced by radio-frequency fields".
[13] IEC 60050-161 (1990): "International Electrotechnical Vocabulary. Chapter 161: Electromagnetic
compatibility".
[14] CEPT/ERC Recommendation 74-01 (1998): "Spurious emissions".
[15] Directive 98/34/EC of the European Parliament and of the Council of 22 June 1998 laying down a
procedure for the provision of information in the field of technical standards and regulations.
[16] Council Directive 73/23/EEC of 19 February 1973 on the harmonization of the laws of Member
States relating to electrical equipment designed for use within certain voltage limits
(LV Directive).
[17] IMO Convention: "International Convention for the Safety of Life at Sea (SOLAS)".
ETSI
11 ETSI EN 301 843-1 V1.2.1 (2004-06)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
ancillary equipment: equipment (apparatus), used in connection with a receiver, transmitter or transceiver is
considered as an ancillary equipment (apparatus) if:
- the equipment is intended for use in conjunction with a receiver or transmitter to provide additional operational
and/or control features to the radio equipment, (e.g. to extend control to another position or location); and
- the equipment cannot be used on a stand alone basis to provide user functions independently of a receiver or
transmitter; and
- the receiver or transmitter to which it is connected, is capable of providing some intended operation such as
transmitting and/or receiving without the ancillary equipment (i.e. it is not a sub-unit of the main equipment
essential to the main equipment basic functions).
artificial antenna: for the purpose of EMC tests, the antenna port(s) of the Equipment Under Test (EUT) shall be
terminated with a non-radiating 50 Ω termination (artificial antenna) unless there is a requirement to apply a Radio
Frequency (RF) input signal to the receiver antenna port
continuous phenomena (continuous disturbance): electromagnetic disturbance, the effects of which on a particular
device or equipment cannot be resolved into a succession of distinct effects
NOTE: See IEC 60050-161 [13].
enclosure port: physical boundary of the apparatus through which electromagnetic fields may radiate or impinge
NOTE: In the case of integral antenna equipment, this port is inseparable from the antenna port.
integral antenna: antenna designed to be connected directly to the equipment with or without the use of an external
connector and considered to be part of the equipment
NOTE: An integral antenna may be fitted internally or externally to the equipment. An antenna which may not be
removed during the tests, according to the manufacturer's statement.
manufacturer: manufacturer of the equipment, or his authorized representative, or an equipment supplier to the
European market
mobile equipment: marine receiver, transmitter or transmitter/receiver (transceiver) intended for installation and use
onboard ships
operating frequency range: range(s) of radio frequencies covered by the Equipment Under Test (EUT) without any
change of units
port: particular interface, of the specified equipment (apparatus), with the electromagnetic environment
NOTE: For example, any connection point on an equipment intended for connection of cables to or from that
equipment is considered as a port (see figure 3).
Enclosure port
Antenna port
AC power port
Signal/control port
DC power port
APPARATUS
Telecommunication port
Earth port
Figure 3: Examples of ports
portable equipment: marine radio and/or ancillary equipment intended for portable (e.g. handheld) operation onboard
ships, and powered by its own integral battery
ETSI
12 ETSI EN 301 843-1 V1.2.1 (2004-06)
radio communications equipment: marine communications equipment which includes one or more radio transmitters
and/or receivers and/or parts thereof for use in a mobile or portable application onboard ships
NOTE: It can be operated with ancillary equipment but if so, is not dependent on it for basic functionality.
removable antenna: antenna which may be removed for the test according to the manufacturer statement
spurious emission: emission on a frequency, or frequencies, which are outside the necessary bandwidth and the level of
which may be reduced without affecting the corresponding transmission of information
NOTE: Spurious emissions include harmonic emissions, parasitic emissions, intermodulation products and
frequency conversion products but exclude out of band emissions (CEPT/ERC Recommendation
74-01 [14]).
transient phenomena (transient disturbance): pertaining to or designating a phenomena or a quantity which varies
between two consecutive steady states during a time interval short compared with the time-scale of interest
NOTE: See IEC 60050-161 [13].
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AC Alternating Current
AM Amplitude Modulation
AMN Artificial Mains Network
B measurement Bandwidth
DC Direct Current
EM ElectroMagnetic
EMC ElectroMagnetic Compatibility
EUT Equipment Under Test
RF Radio Frequency
rms root mean square
4 Test conditions
4.1 General
The equipment shall be tested under normal test conditions according to the relevant product and basic standards or to
the information accompanying the equipment.
The test shall be carried out at a point within the specified normal operating environmental range of temperature and
humidity with the equipment connected to the normal power supply voltage. The normal temperature and humidity
conditions shall be a combination of temperature and humidity within the following ranges:
- temperature: +15°C to +35°C
- relative humidity: 25 % to 75 %
The normal test voltage for equipment to be connected to the AC mains, shall be the nominal (rated) mains voltage. The
frequency of the test voltage shall be 50 Hz ± 1 Hz.
The normal test voltage for equipment to be connected to a battery, shall be the nominal voltage of the battery (12 V,
24 V, etc.). For operation from other power sources, the normal test voltage shall be declared by the manufacturer.
The test conditions, configuration, and mode of operation shall represent the intended use and shall be recorded in the
test report.
For emission and immunity tests, specific product type related information on the test modulation, test conditions and
tests arrangements, etc., are found in the part of the present document dealing with the particular type of radio
equipment.
ETSI
13 ETSI EN 301 843-1 V1.2.1 (2004-06)
4.2 Arrangements for test signals
Adequate measures shall be taken to avoid the effect of immunity test signals on both the measuring equipment and the
signal sources for the wanted signals (the "test system") located outside the test environment.
4.2.1 Arrangements for test signals at the input of transmitters
The signal source providing the transmitter under test with the modulation signal for the normal test modulation shall be
located outside the test environment, unless the transmitter is modulated by its own internal source, see the relevant part
of the present document dealing with the particular type of radio equipment.
The transmitter shall be modulated with normal test modulation, by an internal or external signal source capable of
delivering the normal test modulation as specified in the relevant part of the present document dealing with the
particular type of radio equipment.
4.2.2 Arrangements for test signals at the output of transmitters
The measuring equipment for the wanted RF output signal from the transmitter under test shall be located outside the
test environment.
For transmitters with an integral antenna, the wanted RF output signal to establish a communication link shall be
delivered from the EUT to an antenna located within the test environment. This antenna shall be connected to the
external measuring equipment by a coaxial cable.
For transmitters with a removable antenna, the wanted RF output signal to establish a communication link shall be
delivered from the antenna connector to the external measuring equipment by a shielded transmission line, such as a
coaxial cable. Adequate measures shall be taken to minimize the effect of unwanted common mode currents on the
external conductor of the transmission line at the point of entry to the transmitter.
Unless otherwise specified in the part of the present document relevant for each type of radio equipment, the level of the
wanted RF output signal in transmit mode of operation shall be set to the maximum rated RF power for the EUT,
modulated with the normal test modulation.
4.2.3 Arrangements for test signals at the input of receivers
The signal source providing the receiver under test with the wanted RF input signal shall be located outside the test
environment.
The signal source shall be modulated with normal test modulation as specified in the relevant part of the present
document for the particular type of radio equipment.
For receivers with an integral antenna, the wanted RF input signal to establish a communication link shall be presented
to the EUT from an antenna located within the test environment. This antenna shall be connected to the external RF
signal source by a coaxial cable.
For receivers with a removable antenna, the wanted RF input signal to establish a communication link shall be
presented to the antenna connector of the EUT by a shielded transmission line, such as e.g. a coaxial cable. The
transmission line shall be connected to the external RF signal source. Adequate measures shall be taken to minimize the
effect of unwanted common mode currents on the external conductor of the shielded transmission line at the point of
entry to the receiver.
Adequate measures shall be taken to minimize the effect of unwanted common mode currents on the external conductor
of the shielded transmission line at the point of entry to the receiver.
Unless otherwise specified in the part of the present document relevant for the particular type of radio equipment, the
level of the wanted RF input signal shall be set to be approximately 40 dB above the minimum level necessary to
achieve a receiver performance which meets the relevant specified performance criteria, measured while the power
amplifiers generating the EM disturbance are switched on, but without excitation. This increased level of the wanted RF
input signal is expected to represent a normal operation signal level and should be sufficient to avoid the broadband
noise from the power amplifiers generating the EM disturbance from influencing the measurement.
ETSI
14 ETSI EN 301 843-1 V1.2.1 (2004-06)
4.2.4 Arrangements for test signals at the output of receivers
The measuring equipment for the output signal from the receiver under test shall be located outside the test
environment.
For receivers with an analogue speech output the audio output from the acoustic transducer should be coupled via an
electrically non-conductive acoustic tube to an external audio distortion meter or other appropriate measuring
equipment outside of the test environment. Where it is not practical to use an electrically non-conductive acoustic tube,
then other means of connecting the receiver output signal to the external audio distortion meter or other measuring
equipment shall be provided and recorded in the test report.
For receivers with a non-speech output the output signal shall be coupled via an electrically non-conductive means to
the external measuring equipment outside the test environment (e.g. a camera to read a display). If the receiver has an
output connector or port providing the wanted output signal, then this port shall be used via a cable, consistent with the
standard cable used in normal operation, connected to the external measuring equipment outside the test environment.
The measuring equipment may be supplied by the manufacturer.
Precautions shall be taken to ensure that any effect on the test due to the coupling means is minimized.
4.2.5 Arrangements for testing transmitter and receiver together
(as a system)
Transmi
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