ETSI ETS 300 684 ed.1 (1997-01)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Radijska oprema in sistemi (RES) - Standard elektromagnetne združljivosti (EMC) komercialno dostopne amaterske radijske opremeRadio Equipment and Systems (RES); ElectroMagnetic Compatibility (EMC) standard for commercially available amateur radio equipment33.020Telekomunikacije na splošnoTelecommunications in generalICS:Ta slovenski standard je istoveten z:ETS 300 684 Edition 13SIST ETS 300 684:1998en01-oktober-19983SIST ETS 300 684:1998SLOVENSKI
STANDARD
EUROPEANETS 300 684TELECOMMUNICATIONJanuary 1997STANDARDSource: ETSI TC-RESReference: DE/RES-09016ICS:33.020Key words:Amateur, EMC, radio, testingRadio Equipment and Systems (RES);ElectroMagnetic Compatibility (EMC) standardfor commercially available amateur radio equipmentETSIEuropean Telecommunications Standards InstituteETSI SecretariatPostal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEX.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.frTel.: +33 4 92 94 42 00 - Fax: +33 4 93 65 47 16Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and theforegoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1997. All rights reserved.SIST ETS 300 684:1998

Page 2ETS 300 684: January 1997Whilst every care has been taken in the preparation and publication of this document, errors in content,typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to"ETSI Editing and Committee Support Dept." at the address shown on the title page.SIST ETS 300 684:1998

Page 3ETS 300 684: January 1997ContentsForeword.71Scope.92Normative references.93Definitions, abbreviations and symbols.103.1Definitions.103.2Abbreviations.123.3Symbols.124Test conditions.124.1Test conditions: general.124.1.1EUT test frequencies.134.2Test conditions: immunity testing.134.2.1Arrangements for wanted signals at the modulation input of thetransmitter.134.2.2Arrangements for monitoring the RF output of the transmitter.144.2.3Arrangements for wanted signals at the input of the receiver.144.2.4Arrangements for monitoring the output of the receiver.144.2.5Receiver: exclusion band for immunity testing.144.2.6Receiver: narrow band responses.154.2.7Transmitter: exclusion band for immunity testing.154.3Test conditions: emissions testing.154.3.1Transmitter: exclusion band for emissions testing.155Performance assessment.165.1General.165.2Equipment classification.166Performance criteria.166.1General performance criteria (primary user functions).176.2Particular performance criteria: (primary user functions) transmitters, receivers,transceivers, RF amplifiers and transverters.186.2.1Tests with phenomena of a continuous nature.186.2.2Tests with phenomena of a transient nature.186.2.3Tests with voltage dips.186.2.4Tests with power interruptions.186.3Particular performance criteria: ancillary equipment.186.4General performance criteria (secondary user functions).197Applicability overview tables.207.1Emissions testing.207.2Immunity testing.208Test methods and limits for emission tests.218.1Emission: antenna port.218.1.1Definitions.218.1.2Method of measurement.218.1.3Limits: antenna port in transmitter-active mode.228.1.4Limits: antenna port in standby mode.238.1.5Limits: antenna port in receive mode.238.2Emissions: enclosure port.238.2.1Definition.238.2.2EUT termination.23SIST ETS 300 684:1998

Page 4ETS 300 684: January 19978.2.3Test sites and general arrangements for measurements involving the useof radiated fields.238.2.3.1Outdoor test site.238.2.3.2Method of measurement.248.2.3.3Optional indoor test site.268.2.3.4Further alternative test site using a fully anechoic RFchamber.268.2.4Limits: transmitter active mode.278.2.5Limits: standby mode.278.2.6Limits: receive mode.278.3Emission: DC power input/output port.278.3.1Definition.278.3.2Method of measurement.278.3.3Limits: transmitter active mode.288.3.4Limits: standby mode.298.3.5Limits: receive mode.298.4Emission: AC mains power input/output port.298.4.1Definition.298.4.2Method of measurement:.298.4.3Limits: transmit active mode.308.4.4Limits: standby mode.308.4.5Limits: receive mode.319Test methods and levels for immunity tests.319.1Test configuration.319.1.1Arrangement for test signals in receive mode.319.2Immunity: antenna port, RF conducted.329.2.1Definition.329.2.2Method of measurement: transmitter active mode.329.2.3Receive mode.329.2.3.1Method of measurement.329.2.3.2Arrangement for test signals.339.2.3.3Levels: RF conducted differential mode.339.3Immunity: enclosure port.339.3.1Definition.339.3.2Transmitter active mode.349.3.2.1Method of measurements: RF immunity.349.3.2.2Levels: RF immunity.349.3.2.3Method of measurement: electrostatic discharge.349.3.2.4Levels: electrostatic discharge.349.3.3Standby and receive mode.349.3.3.1Method of measurement: RF immunity.349.3.3.2Levels: RF immunity.349.3.3.3Method of measurement: electrostatic discharge.349.3.3.4Levels: electrostatic discharge.359.4Immunity: DC power input/output port.359.4.1Definition.359.4.2Transmitter active mode.359.4.2.1Method of measurement: RF immunity, common mode,0,15 MHz - 80 MHz.359.4.2.2Levels: RF immunity, common mode, 0,15 MHz - 80 MHz.359.4.2.3Method of measurement: fast transients common mode.359.4.2.4Levels: fast transients common mode.369.4.3Standby and receive mode.369.4.3.1Method of measurement: RF immunity, common mode,0,15 MHz - 80 MHz.369.4.3.2Levels: RF immunity, common mode, 0,15 MHz - 80 MHz.369.4.3.3Method of measurement: fast transients common mode.369.4.3.4Levels: fast transients common mode.379.5Immunity: AC power input/output port.379.5.1Definition.379.5.2Transmitter active mode.37SIST ETS 300 684:1998

Page 5ETS 300 684: January 19979.5.2.1Method of measurement: RF electromagnetic disturbancecommon mode, 0,15 - 80 MHz.379.5.2.2Levels: RF immunity common mode, 0,15 - 80 MHz.379.5.2.3Method of measurement: fast transients common mode.389.5.2.4Levels: fast transients common mode.389.5.2.5Method of measurement: surges common and differentialmode.389.5.2.6Levels: surges common and differential mode.389.5.2.7Method of measurement: voltage dips and powerinterruptions.389.5.2.8Levels: voltage dips and power interruptions.399.5.3Standby mode.399.5.3.1Method of measurement: RF immunity common mode,0,15 - 80 MHz.399.5.3.2Levels: RF immunity common mode, 0,15 - 80 MHz.399.5.3.3Method of measurement: fast transients common mode.399.5.3.4Levels: fast transients common mode.399.5.3.5Method of measurement: surges common and differentialmode.399.5.3.6Levels: surges common and differential mode.409.5.3.7Method of measurement: voltage dips and powerinterruptions.409.5.3.8Levels: voltage dips and power interruptions.409.5.4Receive mode.409.5.4.1Method of measurement: RF immunity common mode,0,15 - 80 MHz.409.5.4.2Levels: RF immunity common mode, 0,15 - 80 MHz.419.5.4.3Method of measurement: fast transients common mode.419.5.4.4Levels: fast transients common mode.419.5.4.5Method of measurement: surges common and differentialmode.419.5.4.6Levels: surges common and differential mode.419.5.4.7Method of measurement: voltage dips and powerinterruptions.419.5.4.8Levels: voltage dips and power interruptions.429.6Immunity: signal/control input/output port.429.6.1Definition.429.6.2Transmitter active mode.429.6.2.1Method of measurement: RF electromagnetic disturbancecommon mode, 0,15 - 80 MHz.429.6.2.2Levels: RF immunity common mode, 0,15 - 80 MHz.429.6.2.3Method of measurement: fast transients common mode.439.6.2.4Levels: fast transients common mode.439.6.3Standby mode.439.6.3.1Method of measurement: RF immunity common mode,0,15 - 80 MHz.439.6.3.2Levels: RF immunity common mode, 0,15 - 80 MHz.439.6.3.3Method of measurement: fast transients common mode.439.6.3.4Levels: fast transients common mode.449.6.4Receive mode.449.6.4.1Method of measurement: RF immunity common mode,0,15 - 80 MHz.449.6.4.2Levels: RF immunity common mode, 0,15 - 80 MHz.449.6.4.3Method of measurement: fast transients common mode.449.6.4.4Levels: fast transients common mode.459.7Immunity: vehicle DC power interface port.459.7.1Definition.459.7.2Method of measurement.459.7.3Immunity levels: 12 V DC powered equipment.459.7.4Immunity levels: 24 V DC powered equipment.4610Interpretation of the measurement results.46SIST ETS 300 684:1998

Page 6ETS 300 684: January 1997Annex A (normative):Clauses and/or subclauses of this ETS relevant for compliance with theessential requirements of EC Council Directives.47History.48SIST ETS 300 684:1998

Page 7ETS 300 684: January 1997ForewordThis European Telecommunication Standard (ETS) has been produced by the Radio Equipment andSystems (RES) Technical Committee of the European Telecommunications Standards Institute (ETSI) inresponse to European Commission mandate [BC-T-353].This ETS is intended to become a Harmonized EMC Standard, the reference of which is intended to bepublished in the Official Journal of the European Commission referencing the EMC Directive, 89/336/EEC.Conformity to the Harmonized Standard will confer presumption of compliance with the essentialrequirements of the EMC Directive.The technical specifications, which are relevant to the EMC Directive are listed in annex A.This ETS is based upon the Generic Standards EN 50081-1 [1] and EN 50082-1 [2], and other standardswhere appropriate, to meet the essential requirements of the Council Directive 89/336/EEC [3].Transposition datesDate of adoption20 December 1996Date of latest announcement of this ETS (doa):30 April 1997Date of latest publication of new National Standardor endorsement of this ETS (dop/e):31 October 1997Date of withdrawal of any conflicting National Standard (dow):31 October 1997SIST ETS 300 684:1998

Page 8ETS 300 684: January 1997Blank pageSIST ETS 300 684:1998

Page 9ETS 300 684: January 19971ScopeThis European Telecommunications Standard (ETS) covers the assessment of radio communication andancillary equipment in respect of ElectroMagnetic Compatibility (EMC).This ETS specifies the applicable EMC tests, the methods of measurement, the limits and the minimumperformance criteria for radio equipment intended to be used by radio amateurs within the meaning ofarticle 1, definition 53 of the Radio Regulations in the International Telecommunications Convention andwhich is available commercially.This ETS applies to amateur radio equipment either manufactured commercially as ready-to-useequipment or as modules or as components having an intrinsic functionality.The environment classifications used in this ETS refers to the environment classification used in thegeneric standards EN 50081-1 [1], EN 50082-1 [2], except the vehicular environment class which refers toISO 7637 [13], [14].The EMC requirements have been selected to ensure an adequate level of compatibility for apparatus inresidential, commercial, light industrial and vehicular environments. The levels however, do not coverextreme cases which may occur in any location but with a low probability of occurrence.This ETS may not cover those cases where a potential source of interference which is producingindividually repeated transient phenomena or a continuous phenomena is permanently present, e.g. aradar or broadcast site in the near vicinity. In such a case it may be necessary to use special protectionapplied to either the source of interference or the interfered part or both.Compliance of radio equipment with the requirements of this ETS does not signify compliance to anyrequirements related to the use of the equipment (for example, licensing requirements).Compliance to this ETS does not signify compliance to any safety requirements. However, it is theresponsibility of the assessor of the equipment that any observation regarding the equipment becomingdangerous or unsafe as a result of the application of the tests of this ETS, should be properlydocumented.2Normative referencesThis ETS incorporates by dated and undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publicationsapply to this ETS only when incorporated in it by amendment or revision. For undated references, thelatest edition of the publication referred to applies.[1]EN 50081-1: "Electromagnetic compatibility - Generic emission standard -Part 1: Residential, commercial and light industry".[2]EN 50082-1: "Electromagnetic compatibility - Generic immunity standard -Part 1: Residential, commercial and light industry".[3]89/336/EEC: "Council Directive on the approximation of the laws of the MemberStates relating to electromagnetic compatibility".[4]ITU Radio Regulations 1 - 18.[5]EN 55022: "Limits and methods of measurement of radio disturbancecharacteristics of information technology equipment".[6]CISPR 16-1: "Specification for radio disturbance and immunity measuringapparatus and methods - Part 1: Radio disturbance and immunity measuringapparatus".[7]ENV 50140: "Electromagnetic Compatibility - Basic immunity standard -Radiated, radio-frequency electromagnetic field. Immunity test".SIST ETS 300 684:1998

Page 10ETS 300 684: January 1997[8]IEC 1000-4-2: "Electromagnetic Compatibility (EMC); Part 4: Testing andmeasurements techniques - Section 2: Electrostatic discharge immunity test.Basic EMC publication".[9]IEC 1000-4-4: "Electromagnetic Compatibility (EMC); Part 4: Testing andmeasurements techniques - Section 4: Electrical fast transient/burst immunitytest. Basic EMC publication".[10]EN 61000-4-6: "Electromagnetic Compatibility (EMC); Part 4: Testing andmeasurements techniques - Section 6: Immunity to conducted disturbances,induced by radio-frequency fields".[11]EN 61000-4-11: "Electromagnetic Compatibility (EMC); Part 4: Testing andmeasurements techniques - Section 11: Voltage dips, short interruptions andvoltage variations immunity tests - Basic EMC publication".[12]ENV 50142: "Electromagnetic Compatibility - Basic immunity standard. Surgeimmunity test".[13]ISO 7637: "Road vehicles - Electrical disturbance by conducting and coupling -Part 1: Passenger cars and light commercial vehicles with nominal 12 V supplyvoltage - Electrical transient conduction along supply lines only".[14]ISO 7637: "Road vehicles - Electrical disturbance by conducting and coupling -Part 2: Commercial vehicles with nominal 24 V supply voltage - Electricaltransient conduction along supply lines only".[15]EN 50147: "Anechoic chambers - Part 2: Alternative test site suitability withrespect to site attenuation".3Definitions, abbreviations and symbols3.1DefinitionsFor the purposes of this ETS, the following definitions apply:base station equipment: Used to describe amateur radio equipment which is powered from the publicAC power network, either directly or indirectly to an AC/DC converter.integral antenna: An antenna designed to be connected to the equipment without the use of an externalconnector and considered to be part of the equipment. An integral antenna may be fitted internally orexternally to the equipment.Manufacturer (SUPPLIER):
The legal entity responsible under the terms of the Council Directive89/336/EEC [3], for placing the product on the market in an EU member state.maximum usable sensitivity: Minimum receiver Radio Frequency (RF) input signal level to produce aspecified analogue SINAD ratio or Bit Error Ratio (BER), or other specified output quality measure, whichis input signal level related.mobile equipment: Used to describe all amateur radio equipment powered by a vehicular power supply.spurious emissions: Emissions on a frequency or frequencies which are outside the necessarybandwidth and the level of which may be reduced without affecting the corresponding transmission ofinformation. Spurious emissions include harmonic emissions, parasitic emissions, intermodulationproducts and frequency conversion products, but exclude out-of-band emissions.out-of-band emissions: Emissions on a frequency or frequencies immediately outside the necessarybandwidth which results from the modulation process, but excluding spurious emissions.unwanted emission: Consists of spurious emissions and out-of-band emissions.SIST ETS 300 684:1998

Page 11ETS 300 684: January 1997port: A particular interface of the specified apparatus with the external electromagnetic environment. Anyconnection point to an equipment intended for connection of cables to or from that equipment isconsidered as a port (see figure 1).APPARATUSEnclosure portAC power portDC power portEarth portSignal/control portAntenna portFigure 1: Examples of portsenclosure port: The physical boundary of the apparatus through which electromagnetic fields mayradiate or impinge.portable equipment: Used to describe all portable amateur radio equipment powered by an internal(and/or) external battery.NOTE 1:More than one of the equipment classifications may apply to certain equipment asdescribed in subclause 5.2 depending upon the manufacturer's declaration of normalintended use.ancillary equipment: Equipment (apparatus), used in connection with a receiver, transmitter ortransceiver is considered as an ancillary equipment (apparatus) if:-the equipment is intended for use in conjunction with a receiver, transmitter or transceiver toprovide additional operational and/or control features to the radio equipment (e.g. to extend controlto another position or location); and-the equipment cannot be used on a stand alone basis to provide user functions independently of areceiver, transmitter or transceiver; and-the receiver, transmitter or transceiver to which it is connected, is capable of providing someintended operation such as transmitting and/or receiving without the ancillary equipment. (i.e. it isnot a sub unit of the main equipment essential to the main equipment’s basic functions).support equipment: This is equipment that can be used with the EUT, but which has functionality whenused alone. Modems and/or PC connections are also to be regarded as support equipment, and not asancillary equipment.NOTE 2: The philosophy depends on the manufacturer. It is up to him to declare, for example,his power supply unit as an integral part of his radio equipment or as a stand-aloneitem which would be declared compliant separately. Typical examples of ancillaryequipment include: microphones, loudspeakers, morse keys (manual orautomatic/electronic), desktop 'drop-in' battery chargers for hand-held portables.Remote front-panels may be considered as ancillary equipment only if the radio has anintegral, permanent front panel as well. Otherwise, demountable front-panels shouldbe considered as an integral part of the EUT. Embedded PCB assemblies sold asoptions, which increase or change the EUT functionality, are regarded as integral tothe EUT and not as ancillary equipment. Snap-on battery packs are also integral partsof the EUT and not ancillary equipment. Plug-in or screw-on whip antennas areregarded as integral parts of the EUT and not ancillary equipment, even if the interfaceis a 50 W connector.SIST ETS 300 684:1998

Page 12ETS 300 684: January 19973.2AbbreviationsFor the purposes of this ETS, the following abbreviations apply:BERBit Error RatioDSB-SCDouble SideBand Suppressed CarrierEMCElectroMagnetic Compatibilityemfelectromotive forceESDElectroStatic DischargeEUTEquipment Under TestLISNLine Impedance Stabilizing NetworkPEPPeak Envelope PowerRFRadio FrequencySSBSingle SideBand3.3SymbolsFor the purposes of this ETS, the following symbols apply:Fbskirt bandwidthFccentre frequency of the transmitter necessary bandwidthFnnecessary bandwidthHFHigh FrequencySINADRatio of Signal + Noise + Distortion to Noise + DistortionVHFVery High FrequencyUHFUltra High Frequency4Test conditions4.1Test conditions: generalThis subclause defines the requirements for the general test configuration and are as follows:-the equipment shall be tested under conditions which are within the manufacturer's declared rangeof humidity, temperature and supply voltage;-the test configuration shall be as close as possible to normal intended use;-where portable (handheld) equipment is provided with a detachable integral antenna, it shall betested with the antenna fitted in a manner typical of normal intended use, unless specified otherwisein this ETS;-if the equipment with an integral antenna provides an internal antenna connector for testingpurposes, the tests can be made via the terminal;-if the equipment is part of a system, or can be connected to ancillary equipment, then it shall beacceptable to test the equipment while connected to the minimum configuration of ancillaryequipment necessary to exercise the ports;-ports, which in normal operation are connected, shall be connected to an ancillary equipment or to arepresentative piece of cable correctly terminated to simulate the impedance of the ancillaryequipment. RF input/output ports shall be correctly terminated;-if the equipment has a large number of ports, then a sufficient number shall be selected to simulatethe actual operating conditions and to ensure that all different types of termination are tested;-ports which are not connected to cables during normal intended operation, e.g. service connectors,programming connectors, temporary connectors etc. shall not be connected to any cables for thepurpose of EMC testing. Where cables have to be connected to these ports, or interconnectingcables have to be extended in length in order to exercise the EUT, precautions shall be taken toensure that the evaluation of the EUT is not affected by the addition or extension of these cables;SIST ETS 300 684:1998

Page 13ETS 300 684: January 1997-the tests shall be carried out at a point within the specified normal operating environmental range atthe rated supply voltage for the equipment;-the test conditions, test configurations modes of operation and the test methods used shall beproperly documented.The manufacturer shall recommend a power supply for use with the equipment under test (EUT), toensure satisfactory operation of the combination during EMC testing. In the event that a range of powersupply units can be used with several of that manufacturer's radios, then each power supply unit shall betested with the radio having the highest RF output Peak Envelope Power (PEP). These power supply unitsshall then be listed as preferred items for future generations of that manufacturer's radios.4.1.1EUT test frequenciesTesting shall be performed with the EUT set to frequencies as follows:-single-band equipment: test at the centre of the band;-double-band equipment: test at the centre of both bands;-HF multi-band equipment or VHF/UHF multi-band equipment: test at the centre of the lowest, thecentre of the middle, and the centre of the highest band;-HF/VHF, HF/UHF or HF/VHF/UHF combined equipment: test at the centre of the lowest HF band,the centre of the middle HF band, the centre of the highest HF band, the centre of the lowestVHF/UHF band, the centre of the middle VHF/UHF band, and the centre of the highest VHF/UHFband.4.2Test conditions: immunity testingIn the case of receivers operating, or capable of operating on a number of frequencies over a widefrequency band, immunity tests shall be made over a selected number of wanted signal test frequencies.For the selected wanted signal test frequencies, see subclause 4.1.1.A communications link shall be established at the start of the test and maintained during the test. The testmodulation, test arrangement etc., as specified in this ETS, subclauses 4.2.1, 4.2.2, 4.2.3, 4.2.4 and 4.2.5shall apply and the conditions shall be as follows:-for transmitter immunity testing under active conditions, in the case of transmitters designed to emittransmissions with a non constant envelope, the power setting may be reduced to -6 dB withrespect to maximum PEP RF output. In the case of transmitters designed to emit transmissionswith a constant envelope, the EUT may be operated at maximum PEP RF output, or at a level up to6 dB lower than this in the event of declared thermal limitations;-for stand alone receivers or receivers of transceivers operating in the simplex mode, the wanted RFinput signal, coupled to the receiver, shall be modulated with a suitable test signal (seesubclause 4.2.3);-for duplex transceivers, the wanted RF input signal, coupled to the receiver, shall be modulated witha suitable test signal (see subclause 4.2.3). The transmitter shall be operated at its maximum PEPRF output, modulated with the test signal, coupled to the transmitter from the output of the receiver(repeater mode).4.2.1Arrangements for wanted signals at the modulation input of the transmitterThe transmitter should be modulated with a suitable signal, from an internal or external signal source. If itis not appropriate to provide a modulated signal from the transmitter, the test may be performed using anunmodulated carrier. It shall be possible to verify that a communications link is established andmaintained.SIST ETS 300 684:1998

Page 14ETS 300 684: January 19974.2.2Arrangements for monitoring the RF output of the transmitterThe measuring equipment used to monitor the output signal of the transmitter shall be located outside ofthe test environment. Adequate measures shall be taken to protect the measuring equipment from theeffect of all interference, (e.g. radiated fields and conducted interference).The output signal of the transmitter shall be coupled to the receiving measuring equipment via a shieldedtransmission line, such as a coaxial cable, to enable a communications link to be established andmaintained.In the case of an integral antenna equipment not provided with an external RF antenna connector, theoutput signal of the transmitter shall be coupled to another antenna located within the test environmentenabling a communications link to be established and maintained. This antenna shall be coupled to thereceiving measuring equipment.4.2.3Arrangements for wanted signals at the input of the receiverThe wanted input signal to the receiver should be modulated with a suitable test signal. If it is notappropriate to provide a modulated signal to the receiver, the test may be performed using anunmodulated wanted input signal. It shall be possible to verify that a communications link is establishedand maintained.The wanted input signal, to establish a communications link shall be presented to the antenna connectorby a coaxial cable. The source of the wanted input signal shall be located outside of the test environmentand shall be at a nominal value of 60 dB (or a lower value as declared by the manufacturer) above themaximum usable sensitivity of the EUT as declared by the manufacturer in the product documentation.4.2.4Arrangements for monitoring the output of the receiverThe output of the receiver under test shall be coupled via a suitable coupling device in order todemonstrate that the link is maintained.The equipment used for monitoring the maintenance of the link shall be located outside of theenvironment.Adequate measures shall be taken to protect the measuring equipment from the effects of all interference(e.g. radiated fields and conducted interference).4.2.5Receiver: exclusion band for immunity testingSmall frequency bands centred around the radio frequency to which the radio is tuned are excluded fromimmunity tests with either radiated or conducted signals. These RF test exclusions are referred to as"exclusion bands".The exclusion band for a receiver and the receiver of a transceiver is determined by the characteristics ofthe equipment.In the case of receivers operating on a fixed single frequency, the exclusion band extends from minus 5 %to plus 5 % of the fixed single frequency.In the case of receivers operating, or capable of operating, on a number of spot frequencies in a narrowoperating frequency band which is less than 20 % of the centre frequency of the operating band, theexclusion band extends from minus 5 % of the lowest frequency of the narrow operating frequency bandto plus 5 % of the highest frequency of that band.In the case of receivers operating, or capable of operating on a number of spot frequencies over a widefrequency band, the exclusion band for each of the wanted signal test frequencies shall extend fromminus 5 % to plus 5 % of each wanted signal test frequency.SIST ETS 300 684:1998

Page 15ETS 300 684: January 19974.2.6Receiver: narrow band responsesResponses on receivers, or receivers of transceivers, occurring during the test at discrete frequencieswhich are narrow band responses (spurious responses) are identified by the method described in thissubclause.If, during the test, an unwanted signal causes degradation of performance of the output resulting from thewanted signal, it is necessary to establish whether the degradation of performance is due to a narrowband response or to a wide band phenomena. Therefore, the unwanted signal frequency shall beincreased by an amount equal to twice the bandwidth of the bandwidth defining filter as declared by themanufacturer. The test shall be repeated with the frequency of the unwanted signal decreased by thesame amount.If the degradation of performance disappears, then the response is considered as a narrow bandresponse.If the degradation of performance does not disappear, this may be due to the fact that the offset has madethe frequency of the unwanted signal correspond to the frequency of another narrow band response.Under these circumstances, the method above is repeated with the increase and decrease of thefrequency of the unwanted signal adjusted to two and a half times the bandwidth referred to. If thedegradation does not now disappear, the phenomenon is considered wide band and therefore an EMCproblem, and the equipment fails the test.Narrow band responses are disregarded.4.2.7Transmitter: exclusion band for immunity testingThe exclusion band for transmitters for immunity testing extends plus and minus twice the maximumoccupied bandwidth allowed for the type of service for which the equipment is intended to operate, centredaround the occupied bandwidth.4.3Test conditions: emissions testing4.3.1Transmitter: exclusion band for emissions testingThe exclusion band for transmitters for emission testing shall be determined by the class of emissioncharacteristics of the EUT. For measurement purposes, the exclusion bandwidth shall additionally allowfor the skirt bandwidth (Fb) of the measuring instrumentation, as shown in table 1.Table 1: Transmitter exclusion band for emissionsNecessary bandwidthof emissionExclusion bandExclusion band centreFn < 0,05 Fc3 Fn + FbFcFn > 0,05 Fc1,1 Fn + FbFcWhere:-Fn = Necessary bandwidth of the wanted class of emission as defined in ITU RR 1-18clause 146 [4];-Fb = 200 kHz in the frequency range below 30 MHz;-Fb = 2 MHz in the frequency range above 30 MHz;-Fc = Centre frequency of the transmitter necessary bandwidth.SIST ETS 300 684:1998

Page 16ETS 300 684: January 19975Performance assessment5.1GeneralThe manufacturer shall declare, or properly document the following information which shall be inaccordance with the information contained in the (user) instructions accompanying the equipment:-the primary functions of the radio equipment to be evaluated during and after the EMC testing;-the intended functions of the EUT which shall be in accordance with the documentationaccompanying the equipment;-the ancillary equipment to be combined with the radio equipment for testing;-the method to be used to verify that a communications link is established and maintained;-the modulation type to be used including where applicable, the modulating test data sequenceand/or the applicable frequency deviation or modulation depth;-the maximum duty cycle and the maximum transmit time for each mode of transmission where theEUT is incapable of continuous transmission;-the user-control functions and stored data that are required for normal operation and the method tobe used to assess whether these have been lost during and after immunity testing;-an exhaustive list of ports, classified as either power or signal/control. Power ports shall further beclassified as AC or DC power;-the operating mode which produces the maximum unwanted emission for multimode equipment;-the bandwidth of the bandwidth-defining filter used in each mode, in the case of multi-modeequipment. The antenna port immunity test (RF immunity, differential mode) shall be performedusing the mode with the widest defined bandwidth;-the nominal antenna load impedance for transmitters and the applicable tolerance;-the nominal antenna source impedance for receivers and the applicable tolerance.5.2Equipment classificationAmateur radio equipment and/or combinations of equipment shall be considered as either base station,and/or mobile equipment and/or portable equipment by declaration of the manufacturer.Equipment intended for use in more than one EMC environment, shall be tested with each type ofdeclared power source under conditions simulating each declared EMC environment. For example,portable equipment declared as capable of being powered for intended use by the main battery of avehicle, shall additionally be considered as equipment for vehicular use.6Performance criteriaAmateur radio equipment may contain user functions which are of primary relevance from the point ofview of conveying information or configure the equipment to allow the exchange of information.In addition, other user functions may be included in the equipment which do not have a functionalrelationship with the primary function.From the perspective of developing intrinsic immunity specifications (minimum performance criteria), theexample below illustrates what are considered as primary or secondary functions.SIST ETS 300 684:1998

Page 17ETS 300 684: January 1997EXAMPLE:A paging receiver also containing an alarm clock:-primary functions are the reception of a call, the call alert and the storageof a call, if provided;-secondary functions are all functions related to the alarm clock.Primary user functions:-the EUT shall meet the minimum particular performance criteria as specified in subclauses 6.1and/or 6.2 and/or 6.3, as appropriate.Secondary user functions:-for secondary user functions, the equipment shall meet the general performance criteria asspecified in subclause 6.4.6.1General performance criteria (primary user functions)Table 2: General performance criteriaCriteriaDuring testAfter testADegradation of performance (note 1)No loss of functionOperate as intended (no loss of link)No unintended RF transmissionNo loss of user control functions or storedconfiguration dataOperate as intendedNo degradation of performance (note 2)No loss of functionNo loss of stored dataBLoss of function (one or more)No unint
...