ETSI EN 301 843-1 V1.3.1 (2012-08)

Harmonized European Standard
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 V1.3.1 (2012-08)

Reference
REN/ERM-EMC-273-1
Keywords
EMC, maritime, radio, regulation
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ETSI
3 ETSI EN 301 843-1 V1.3.1 (2012-08)
Contents
Intellectual Property Rights . 5
Foreword . 5
1 Scope . 7
2 References . 7
2.1 Normative references . 8
2.2 Informative references . 8
3 Definitions and abbreviations . 9
3.1 Definitions . 9
3.2 Abbreviations . 10
4 Test conditions . 10
4.1 General . 10
4.2 Arrangements for test signals . 11
4.2.1 Arrangements for test signals at the input of transmitters . 11
4.2.2 Arrangements for test signals at the output of transmitters . 11
4.2.3 Arrangements for test signals at the input of receivers . 11
4.2.4 Arrangements for test signals at the output of receivers . 12
4.2.5 Arrangements for testing transmitter and receiver together (as a system) . 12
4.3 RF exclusion band of radio communications equipment. 12
4.4 Narrow band responses of receivers or receivers which are part of transceivers . 13
4.5 Normal test modulation . 14
5 Performance assessment . 14
5.1 General . 14
5.2 Equipment which can provide a continuous communication link . 14
5.3 Equipment which does not provide a continuous communication link . 15
5.4 Ancillary equipment . 15
5.5 Equipment classification . 16
6 Performance criteria . 16
6.1 Performance criteria A for continuous phenomena applied to transmitters and receivers. 16
6.2 Performance criteria B for transient phenomena applied to transmitters and receivers . 17
6.3 Performance criteria C applied to power supply failure . 17
6.4 Performance check . 17
6.5 Performance criteria for equipment which does not provide a continuous communication link . 17
6.6 Performance criteria for ancillary equipment tested on a stand alone basis . 18
7 Applicability overview tables . 18
7.1 EMC emission . 18
7.2 Immunity . 19
8 Methods of measurement and limits for EMC emissions . 19
8.1 Test configuration. 19
8.2 Enclosure of ancillary equipment measured on a stand alone basis . 20
8.2.1 Definition . 20
8.2.2 Test method . 20
8.2.3 Limits . 21
8.3 DC power input/output ports . 21
8.3.1 Definition . 21
8.3.2 Test method . 21
8.3.3 Limits . 22
8.4 AC mains power input/output ports . 22
8.4.1 Definition . 22
8.4.2 Test method . 22
8.4.3 Limits . 23
9 Test methods and levels for immunity tests . 23
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4 ETSI EN 301 843-1 V1.3.1 (2012-08)
9.1 Test configuration. 23
9.2 Radio frequency electromagnetic field (80 MHz to 2 700 MHz) . 24
9.2.1 Definition . 24
9.2.2 Test method . 24
9.2.3 Performance criteria . 24
9.3 Electrostatic discharge . 24
9.3.1 Definition . 25
9.3.2 Test method . 25
9.3.3 Performance criteria . 25
9.4 Fast transients, differential and common mode . 25
9.4.1 Definition . 25
9.4.2 Test method . 26
9.4.3 Performance criteria . 26
9.5 Radio frequency, common mode . 26
9.5.1 Definition . 26
9.5.2 Test method . 26
9.5.3 Performance criteria . 27
9.6 Power supply variations . 27
9.6.1 Power supply short term variations . 27
9.6.1.1 Definition . 27
9.6.1.2 Test method . 27
9.6.1.3 Performance criteria . 28
9.6.2 Power supply failure . 28
9.6.2.1 Definition . 28
9.6.2.2 Test method . 28
9.6.2.3 Performance criteria . 28
9.7 Surges . 28
9.7.1 Definition . 28
9.7.2 Test method . 28
9.7.3 Performance criteria . 29
Annex A (normative): HS Requirements and conformance Test specifications Table (HS-
RTT) . 30
History . 32

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5 ETSI EN 301 843-1 V1.3.1 (2012-08)
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://ipr.etsi.org).
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 Harmonized European Standard (EN) 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 Directive 98/34/EC [i.8] as amended by Directive 98/48/EC [i.10].
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") (2004/108/EC [i.3] as amended),
and Directive 1999/5/EC [i.4] 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" [i.4]).
Technical specifications relevant to the EMC Directive [i.3] and the R&TTE Directive [i.4] are given in annex A.
The present document is based upon the standard for marine navigational equipment EN 60945 [1], and other standards
where appropriate, to meet the essential requirements of Council Directives 2004/108/EC [i.3] and 1999/5/EC [i.4]
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 [i.3].
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 3: Void;
Part 4: "Specific conditions for Narrow-Band Direct-Printing (NBDP) NAVTEX receivers";
Part 5: "Specific conditions for MF/HF radiotelephone transmitters and receivers";
Part 6: "Specific conditions for Earth Stations on board Vessels operating in frequency bands above 3 GHz".

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6 ETSI EN 301 843-1 V1.3.1 (2012-08)
National transposition dates
Date of adoption of this EN: 2 August 2012
Date of latest announcement of this EN (doa): 30 November 2012
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 May 2013
Date of withdrawal of any conflicting National Standard (dow): 31 May 2014

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7 ETSI EN 301 843-1 V1.3.1 (2012-08)
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 [i.5]).
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 [1] for marine navigational equipment,
that means to the maritime environment.
Marine radio communications equipment meeting the EMC requirements set out in EN 60945 [1] is deemed to meet
also the EMC requirements for the residential, commercial and light industrial environment as defined in
EN 61000-6-3 [i.1] and EN 61000-6-1 [i.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.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
reference document (including any amendments) applies.
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.
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8 ETSI EN 301 843-1 V1.3.1 (2012-08)
2.1 Normative references
The following referenced documents are necessary for the application of the present document.
[1] IEC EN 60945 (2002) + Corrigendum 1 (2010): "Maritime navigation and radiocommunication
equipment and systems - General requirements - Methods of testing and required test results".
[2] CISPR 16-1-1 (2006): "Specification for radio disturbance and immunity measuring apparatus and
methods - Part 1: Radio disturbance and immunity measuring apparatus".
[3] IEC EN 61000-4-2 (2001): "Electromagnetic compatibility (EMC) - Part 4-2: Testing and
measurement techniques - Electrostatic discharge immunity test".
[4] IEC EN 61000-4-3 (2006): "Electromagnetic compatibility (EMC) - Part 4-3: Testing and
measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test".
[5] IEC EN 61000-4-4 (2004): "Electromagnetic compatibility (EMC) - Part 4-4: Testing and
measurement techniques - Electrical fast transient/burst immunity test".
[6] IEC EN 61000-4-5 (2005): "Electromagnetic compatibility (EMC) - Part 4-5: Testing and
measurement techniques - Surge immunity test".
[7] IEC EN 61000-4-6 (2006): "Electromagnetic compatibility (EMC) - Part 4-6: Testing and
measurement techniques - Immunity to conducted disturbances, induced by radio-frequency
fields".
2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] IEC EN 61000-6-3 (2007) + A1 (2011): "Electromagnetic compatibility (EMC) - Part 6-3: Generic
standards - Emission standard for residential, commercial and light-industrial environments".
[i.2] IEC EN 61000-6-1 (2007): "Electromagnetic compatibility (EMC) - Part 6-1: Generic standards -
Immunity for residential, commercial and light-industrial environments".
[i.3] Council Directive 2004/108/EC on the approximation of the laws of the Member States relating to
electromagnetic compatibility (EMC Directive).
[i.4] 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).
[i.5] Council Directive 96/98/EC of 20 December 1996 on marine equipment.
[i.6] IEC EN 60050-161 (1990): "International Electrotechnical Vocabulary. Chapter 161:
Electromagnetic compatibility".
[i.7] CEPT/ERC Recommendation 74-01 (2011): "Unwanted emissions in the spurious domain".
[i.8] 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.
[i.9] IMO Convention: "International Convention for the Safety of Life at Sea (SOLAS)".
[i.10] Directive 98/48/EC of the European Parliament and of the Council of 20 July 1998 amending
Directive 98/34/EC laying down a procedure for the provision of information in the field of
technical standards and regulations.
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9 ETSI EN 301 843-1 V1.3.1 (2012-08)
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: non-reactive, non-radiating dummy load equal to the nominal impedance of the antenna port
NOTE: For the purpose of EMC tests, the antenna port(s) of the Equipment Under Test (EUT) are 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 [i.6].
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 1).
Enclosure port
Antenna port
AC power port
Signal/control port
DC power port
APPARATUS
Earth port Telecommunication port

Figure 1: Examples of ports
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10 ETSI EN 301 843-1 V1.3.1 (2012-08)
portable equipment: marine radio and/or ancillary equipment intended for portable (e.g. handheld) operation onboard
ships, and powered by its own integral battery
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 [i.7]).
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 [i.6].
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.
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11 ETSI EN 301 843-1 V1.3.1 (2012-08)
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.
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.
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12 ETSI EN 301 843-1 V1.3.1 (2012-08)
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.
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)
Transmitters and receivers may be tested for immunity as a system when combined as a transceiver or the combined
equipment is of a size which allows simultaneous testing. In this case the transceiver or transmitter and receiver shall be
located inside the test environment and shall be exposed simultaneously to the immunity test signals.
The normal test modulation shall be transmitted by the test system and looped back in the EUT. Further, the output of
the EUT shall be monitored by the test system.
For combined testing of transceivers or transmitters and receivers operating at the same frequency, two samples of the
EUT are required. The wanted RF output signal of the transmitter (sample A) may be used via a suitable attenuator and
applied to the input of the receiver (sample B) as the wanted RF input signal.
For transceivers or transmitters and receivers operating at different frequencies e.g. in duplex mode the arrangements
are defined in the product related part of the present document for the particular type of radio equipment.
4.3 RF exclusion band of radio communications equipment
For the purpose of EMC tests set up in the present document, the radio communications equipment is subject to an
exclusion band. This exclusion band is always product dependent and defined in the relevant part of the present
document dealing with the particular type of radio equipment.
The RF exclusion band applies to radio communications equipment intended for operation at designated frequencies up
to 2 GHz.
For equipment intended for operation at frequencies around 2 GHz the product related conditions for the exclusion band
may have to be taken into account in performing the EMC emission measurements and immunity tests. In case of doubt
an exact calculation of the resulting RF exclusion band shall be made. The exclusion band can be neglected if this
calculation proves that the resulting lower edge frequency of the exclusion band is above 2 GHz.
NOTE: Particular care is required for radio equipment intended for operation at designated frequencies less than
or equal to 30 MHz. Under these circumstances the RF exclusion band also applies to EMC emission
measurements for conducted disturbances at AC mains and/or DC power ports which are performed in the
frequency range up to 30 MHz.
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13 ETSI EN 301 843-1 V1.3.1 (2012-08)
No RF exclusion band applies to radio equipment intended for operation at designated frequencies above 2 GHz.
The following provisions apply to all types of radio equipment:
• transmitters:
- the RF exclusion band applies to EMC emission measurements in transmit mode of operation, and to
immunity tests. The exclusion band for transmitters does not apply to EMC emission measurements in
stand-by mode of operation, if appropriate.
• receivers:
- the RF exclusion band applies to immunity tests only.
• ancillary equipment:
- for ancillary equipment intended to be tested on a stand alone basis, an RF exclusion band does not
apply;
- for ancillary equipment intended to be tested in combination with radio equipment the relevant
provisions above for transmitters and/or receivers shall apply.
For detailed information see the relevant part of the present document dealing with the particular type of radio
equipment.
4.4 Narrow band responses of receivers or receivers which are
part of transceivers
Responses on receivers or the receiver part of (duplex) transceivers occurring during the immunity tests at discrete
frequencies which are narrow band responses (spurious responses), are identified by the following method:
If during the test the immunity RF test signal (see clauses 9.2 and 9.5) causes non-compliance of the receiver with the
specified performance criteria for continuous phenomena (see clause 6.1), it is necessary to establish whether this non
compliance is due to a narrow band response or a wideband phenomenon. Therefore, the frequency of the test signal is
increased by an amount equal to twice the nominal 6 dB bandwidth of the filter immediately preceding the demodulator
of the receiver, or if appropriate, the bandwidth over which the apparatus is intended to operate, as declared by the
manufacturer. The test is repeated with the frequency of the test signal decreased by the same amount.
If the receiver is then in either or both frequency offset cases in compliance with the specified performance criteria, the
response is considered as a narrow band response.
If the receiver still does not comply with the specified performance criteria, this may be due to the fact that the offset
has made the frequency of the unwanted signal correspond to the frequency of another narrow band response. Under
these circumstances the procedure is repeated with an increase and decrease of the frequency of the test signal adjusted
two and a half times the bandwidth referred to above.
If the receiver still does not comply with the specified performance criteria in either or both frequency offset cases, the
phenomena is considered wideband and therefore an EMC problem and the equipment fails the test.
For immunity tests, narrow band responses shall be disregarded.
Particular performance criteria typical for the relevant type of EUT and information about any product type dependent
nominal frequency offset to be used for the identification of narrowband responses can be found in the part of the
present document dealing with the particular type of radio equipment.
Where narrow band responses of receivers are not permitted, this shall be stated within the part of the present document
dealing with particular type of radio equipment.
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14 ETSI EN 301 843-1 V1.3.1 (2012-08)
4.5 Normal test modulation
For the purpose of EMC tests, the transmitter under test shall be modulated according to the normal test modulation
specified in the relevant part of the present document dealing with the particular type of radio equipment.
For the purpose of EMC tests, the receiver under test shall be provided with a wanted RF input signal modulated
according to the normal test modulation specified in the relevant part of the present document dealing with the
particular type of radio equipment.
5 Performance assessment
5.1 General
The manufacturer shall at the time of submission of the equipment for test, supply the following information to be
recorded in the test report:
- the primary functions of the radio equipment to be assessed during and after the EMC exposure;
- the intended functions of the radio equipment which shall be in accordance with the documentation
accompanying the equipment;
- the antenna type of the radio equipment (integral or removable antenna, for EMC test purposes);
- the user control functions and stored data that are required for normal operation and the method to be used to
assess whether these have been lost after the EMC exposure;
- the type of modulation, the characteristics of the transmission used for testing (random bit stream
...

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Electromagnetic compatibility and Radio spectrum Matters (ERM) - ElectroMagnetic Compatibility (EMC) standard for marine radio equipment and services - Part 1: Common technical requirements47.020.70Navigacijska in krmilna opremaNavigation and control equipment33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.20Sprejemna in oddajna opremaReceiving and transmitting equipmentICS:Ta slovenski standard je istoveten z:EN 301 843-1 Version 1.3.1SIST EN 301 843-1 V1.3.1:2012en01-september-2012SIST EN 301 843-1 V1.3.1:2012SLOVENSKI
STANDARD
Harmonized European Standard SIST EN 301 843-1 V1.3.1:2012

ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 2
Reference REN/ERM-EMC-273-1 Keywords EMC, maritime, radio, regulation ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp 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 2012. All rights reserved.
DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association. SIST EN 301 843-1 V1.3.1:2012

ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 3 Contents Intellectual Property Rights . 5 Foreword . 5 1 Scope . 7 2 References . 7 2.1 Normative references . 8 2.2 Informative references . 8 3 Definitions and abbreviations . 9 3.1 Definitions . 9 3.2 Abbreviations . 10 4 Test conditions . 10 4.1 General . 10 4.2 Arrangements for test signals . 11 4.2.1 Arrangements for test signals at the input of transmitters . 11 4.2.2 Arrangements for test signals at the output of transmitters . 11 4.2.3 Arrangements for test signals at the input of receivers . 11 4.2.4 Arrangements for test signals at the output of receivers . 12 4.2.5 Arrangements for testing transmitter and receiver together (as a system) . 12 4.3 RF exclusion band of radio communications equipment. 12 4.4 Narrow band responses of receivers or receivers which are part of transceivers . 13 4.5 Normal test modulation . 14 5 Performance assessment . 14 5.1 General . 14 5.2 Equipment which can provide a continuous communication link . 14 5.3 Equipment which does not provide a continuous communication link . 15 5.4 Ancillary equipment . 15 5.5 Equipment classification . 16 6 Performance criteria . 16 6.1 Performance criteria A for continuous phenomena applied to transmitters and receivers. 16 6.2 Performance criteria B for transient phenomena applied to transmitters and receivers . 17 6.3 Performance criteria C applied to power supply failure . 17 6.4 Performance check . 17 6.5 Performance criteria for equipment which does not provide a continuous communication link . 17 6.6 Performance criteria for ancillary equipment tested on a stand alone basis . 18 7 Applicability overview tables . 18 7.1 EMC emission . 18 7.2 Immunity . 19 8 Methods of measurement and limits for EMC emissions . 19 8.1 Test configuration. 19 8.2 Enclosure of ancillary equipment measured on a stand alone basis . 20 8.2.1 Definition . 20 8.2.2 Test method . 20 8.2.3 Limits . 21 8.3 DC power input/output ports . 21 8.3.1 Definition . 21 8.3.2 Test method . 21 8.3.3 Limits . 22 8.4 AC mains power input/output ports . 22 8.4.1 Definition . 22 8.4.2 Test method . 22 8.4.3 Limits . 23 9 Test methods and levels for immunity tests . 23 SIST EN 301 843-1 V1.3.1:2012

ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 4 9.1 Test configuration. 23 9.2 Radio frequency electromagnetic field (80 MHz to 2 700 MHz) . 24 9.2.1 Definition . 24 9.2.2 Test method . 24 9.2.3 Performance criteria . 24 9.3 Electrostatic discharge . 24 9.3.1 Definition . 25 9.3.2 Test method . 25 9.3.3 Performance criteria . 25 9.4 Fast transients, differential and common mode . 25 9.4.1 Definition . 25 9.4.2 Test method . 26 9.4.3 Performance criteria . 26 9.5 Radio frequency, common mode . 26 9.5.1 Definition . 26 9.5.2 Test method . 26 9.5.3 Performance criteria . 27 9.6 Power supply variations . 27 9.6.1 Power supply short term variations . 27 9.6.1.1 Definition . 27 9.6.1.2 Test method . 27 9.6.1.3 Performance criteria . 28 9.6.2 Power supply failure . 28 9.6.2.1 Definition . 28 9.6.2.2 Test method . 28 9.6.2.3 Performance criteria . 28 9.7 Surges . 28 9.7.1 Definition . 28 9.7.2 Test method . 28 9.7.3 Performance criteria . 29 Annex A (normative): HS Requirements and conformance Test specifications Table (HS-RTT) . 30 History . 32
ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 5 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://ipr.etsi.org). 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 Harmonized European Standard (EN) 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 Directive 98/34/EC [i.8] as amended by Directive 98/48/EC [i.10]. 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") (2004/108/EC [i.3] as amended), and Directive 1999/5/EC [i.4] 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" [i.4]). Technical specifications relevant to the EMC Directive [i.3] and the R&TTE Directive [i.4] are given in annex A. The present document is based upon the standard for marine navigational equipment EN 60945 [1], and other standards where appropriate, to meet the essential requirements of Council Directives 2004/108/EC [i.3] and 1999/5/EC [i.4] 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 [i.3]. 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 3: Void; Part 4: "Specific conditions for Narrow-Band Direct-Printing (NBDP) NAVTEX receivers"; Part 5: "Specific conditions for MF/HF radiotelephone transmitters and receivers"; Part 6: "Specific conditions for Earth Stations on board Vessels operating in frequency bands above 3 GHz".
ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 6 National transposition dates Date of adoption of this EN: 2 August 2012 Date of latest announcement of this EN (doa): 30 November 2012 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 May 2013 Date of withdrawal of any conflicting National Standard (dow): 31 May 2014
ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 7 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 [i.5]). 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 [1] for marine navigational equipment, that means to the maritime environment. Marine radio communications equipment meeting the EMC requirements set out in EN 60945 [1] is deemed to meet also the EMC requirements for the residential, commercial and light industrial environment as defined in EN 61000-6-3 [i.1] and EN 61000-6-1 [i.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. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. 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. SIST EN 301 843-1 V1.3.1:2012

ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 8 2.1 Normative references The following referenced documents are necessary for the application of the present document. [1] IEC EN 60945 (2002) + Corrigendum 1 (2010): "Maritime navigation and radiocommunication equipment and systems - General requirements - Methods of testing and required test results". [2] CISPR 16-1-1 (2006): "Specification for radio disturbance and immunity measuring apparatus and methods - Part 1: Radio disturbance and immunity measuring apparatus". [3] IEC EN 61000-4-2 (2001): "Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test". [4] IEC EN 61000-4-3 (2006): "Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test". [5] IEC EN 61000-4-4 (2004): "Electromagnetic compatibility (EMC) - Part 4-4: Testing and measurement techniques - Electrical fast transient/burst immunity test". [6] IEC EN 61000-4-5 (2005): "Electromagnetic compatibility (EMC) - Part 4-5: Testing and measurement techniques - Surge immunity test". [7] IEC EN 61000-4-6 (2006): "Electromagnetic compatibility (EMC) - Part 4-6: Testing and measurement techniques - Immunity to conducted disturbances, induced by radio-frequency fields". 2.2 Informative references The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. [i.1] IEC EN 61000-6-3 (2007) + A1 (2011): "Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission standard for residential, commercial and light-industrial environments". [i.2] IEC EN 61000-6-1 (2007): "Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity for residential, commercial and light-industrial environments". [i.3] Council Directive 2004/108/EC on the approximation of the laws of the Member States relating to electromagnetic compatibility (EMC Directive). [i.4] 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). [i.5] Council Directive 96/98/EC of 20 December 1996 on marine equipment. [i.6] IEC EN 60050-161 (1990): "International Electrotechnical Vocabulary. Chapter 161: Electromagnetic compatibility". [i.7] CEPT/ERC Recommendation 74-01 (2011): "Unwanted emissions in the spurious domain". [i.8] 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. [i.9] IMO Convention: "International Convention for the Safety of Life at Sea (SOLAS)". [i.10] Directive 98/48/EC of the European Parliament and of the Council of 20 July 1998 amending Directive 98/34/EC laying down a procedure for the provision of information in the field of technical standards and regulations. SIST EN 301 843-1 V1.3.1:2012

ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 9 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: non-reactive, non-radiating dummy load equal to the nominal impedance of the antenna port NOTE: For the purpose of EMC tests, the antenna port(s) of the Equipment Under Test (EUT) are 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 [i.6]. 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 1).
DC power port AC power port Enclosure port Antenna port Signal/control port APPARATUS Telecommunication port Earth port
Figure 1: Examples of ports SIST EN 301 843-1 V1.3.1:2012

ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 10 portable equipment: marine radio and/or ancillary equipment intended for portable (e.g. handheld) operation onboard ships, and powered by its own integral battery 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 [i.7]). 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 [i.6]. 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. SIST EN 301 843-1 V1.3.1:2012

ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 11 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. 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. SIST EN 301 843-1 V1.3.1:2012

ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 12 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. 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) Transmitters and receivers may be tested for immunity as a system when combined as a transceiver or the combined equipment is of a size which allows simultaneous testing. In this case the transceiver or transmitter and receiver shall be located inside the test environment and shall be exposed simultaneously to the immunity test signals. The normal test modulation shall be transmitted by the test system and looped back in the EUT. Further, the output of the EUT shall be monitored by the test system. For combined testing of transceivers or transmitters and receivers operating at the same frequency, two samples of the EUT are required. The wanted RF output signal of the transmitter (sample A) may be used via a suitable attenuator and applied to the input of the receiver (sample B) as the wanted RF input signal. For transceivers or transmitters and receivers operating at different frequencies e.g. in duplex mode the arrangements are defined in the product related part of the present document for the particular type of radio equipment. 4.3 RF exclusion band of radio communications equipment For the purpose of EMC tests set up in the present document, the radio communications equipment is subject to an exclusion band. This exclusion band is always product dependent and defined in the relevant part of the present document dealing with the particular type of radio equipment. The RF exclusion band applies to radio communications equipment intended for operation at designated frequencies up to 2 GHz.
For equipment intended for operation at frequencies around 2 GHz the product related conditions for the exclusion band may have to be taken into account in performing the EMC emission measurements and immunity tests. In case of doubt an exact calculation of the resulting RF exclusion band shall be made. The exclusion band can be neglected if this calculation proves that the resulting lower edge frequency of the exclusion band is above 2 GHz. NOTE: Particular care is required for radio equipment intended for operation at designated frequencies less than or equal to 30 MHz. Under these circumstances the RF exclusion band also applies to EMC emission measurements for conducted disturbances at AC mains and/or DC power ports which are performed in the frequency range up to 30 MHz. SIST EN 301 843-1 V1.3.1:2012

ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 13 No RF exclusion band applies to radio equipment intended for operation at designated frequencies above 2 GHz. The following provisions apply to all types of radio equipment: • transmitters: - the RF exclusion band applies to EMC emission measurements in transmit mode of operation, and to immunity tests. The exclusion band for transmitters does not apply to EMC emission measurements in stand-by mode of operation, if appropriate. • receivers: - the RF exclusion band applies to immunity tests only.
• ancillary equipment: - for ancillary equipment intended to be tested on a stand alone basis, an RF exclusion band does not apply; - for ancillary equipment intended to be tested in combination with radio equipment the relevant provisions above for transmitters and/or receivers shall apply. For detailed information see the relevant part of the present document dealing with the particular type of radio equipment. 4.4 Narrow band responses of receivers or receivers which are part of transceivers Responses on receivers or the receiver part of (duplex) transceivers occurring during the immunity tests at discrete frequencies which are narrow band responses (spurious responses), are identified by the following method: If during the test the immunity RF test signal (see clauses 9.2 and 9.5) causes non-compliance of the receiver with the specified performance criteria for continuous phenomena (see clause 6.1), it is necessary to establish whether this non compliance is due to a narrow band response or a wideband phenomenon. Therefore, the frequency of the test signal is increased by an amount equal to twice the nominal 6 dB bandwidth of the filter immediately preceding the demodulator of the receiver, or if appropriate, the bandwidth over which the apparatus is intended to operate, as declared by the manufacturer. The test is repeated with the frequency of the test signal decreased by the same amount. If the receiver is then in either or both frequency offset cases in compliance with the specified performance criteria, the response is considered as a narrow band response. If the receiver still does not comply with the specified performance criteria, this may be due to the fact that the offset has made the frequency of the unwanted signal correspond to the frequency of another narrow band response. Under these circumstances the procedure is repeated with an increase and decrease of the frequency of the test signal adjusted two and a half times the bandwidth referred to above. If the receiver still does not comply with the specified performance criteria in either or both frequency offset cases, the phenomena is considered wideband and therefore an EMC problem and the equipment fails the test. For immunity tests, narrow band responses shall be disregarded. Particular performance criteria typical for the relevant type of EUT and information about any product type dependent nominal frequency offset to be used for the identification of narrowband responses can be found in the part of the present document dealing with the particular type of radio equipment. Where narrow band responses of receivers are not permitted, this shall be stated within the part of the present document dealing with particular type of radio equipment. SIST EN 301 843-1 V1.3.1:2012

ETSI ETSI EN 301 843-1 V1.3.1 (2012-08) 14 4.5 Normal test modulation For the purpose of EMC tests, the transmitter under test shall be modulated according to the normal test modulation specified in the relevant part of the present document dealing with the particular type of radio equipment. For the purpose of EMC tests, the receiver under test shall be provided with a wanted RF input signal modulated according to the normal test modulation specified in the relevant part of the present document dealing with the particular type of radio equipment. 5 Performance assessment 5.1 General The manufacturer shall at the time of submission of the equipment for test, supply the following information to be recorded in the test report: - the primary functions of the radio equipment to be assessed during and after the EMC exposure; - the intended functions of the radio equipment which shall be in accordance with the documentation accompanying the equipment; - the antenna type of the radio equipment (integral or removable antenna, for EMC test purposes); - the user control functions and stored data that are required for normal operation and the method to be used to assess whether these have been lost after the EMC exposure; - the type of modulation, the characteristics of the transmission used for testing (random bit stream, message format, etc.) and the necessary test equipment delivered to enable the assessment of the EUT; - the maximum rated RF outp
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