SIST EN 301 721:2001
(Main)Satellite Earth Stations and Systems (SES); Harmonized EN for Mobile Earth Stations (MES) providing Low Bit Rate Data Communications (LBRDC) using Low Earth Orbiting (LEO) satellites operating below 1 GHz covering essential requirements under Article 3.2 of the R&TTE directive
- Abstract
This Harmonised Standard will specify the technical requirements that apply to Mobile Earth Stations (MESs) for compliance with article 3.2 of the R&TTE Directive 1999/5/EC. The Mobile Earth Stations (MESs) have the following characteristics: The MESs will operate in frequency ranges below 1 GHz, which are expected to be allocated to Mobile Satellite Data Services operating in bands below 1 GHz, the use of which is expected to be harmonised through implementation of ERC Decisions accordance with the ITU Radio Regulations to the Mobile Satellite Services; The MESs could be either a based MES (BMES), a vehicle mounted MES (VMES) or a portable MES (PMES); The MESs operate through satellites in Low Earth Orbit (LEO) as part of a network providing low bit rate data communications; The MESs are controlled and monitored by a Network Control Facility (NCF). The NCF is outside the scope of this Harmonised Standard. The requirements of this Harmonised Standard shall be selected to ensure an adequate level of compatibility with other radio services. This Harmonised Standard does not contain any requirement, recommendation or information about the installation of the MESs Compliance of a MES to the requirements of this Harmonised Standard does not imply that the MES may be used. In conformity with Article 3.2 of Directive 1999/5/EC, the use of such equipment may be subject to licensing terms in conformity with Community law.
- Status
- Published
- Publication Date
- 31-Aug-2001
- Technical Committee
- RES - Radio equipment and systems
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Sep-2001
- Due Date
- 01-Sep-2001
- Completion Date
- 01-Sep-2001
- Mandate
- M/284
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SIST EN 301 721:2001 is the SIST publication of an ETSI harmonized European standard for Satellite Earth Stations and Systems (SES) Mobile Earth Stations (MES) providing Low Bit Rate Data Communications (LBRDC) using Low Earth Orbiting (LEO) satellites below 1 GHz. It specifies technical requirements and test methods for MES intended to meet Article 3.2 of the R&TTE Directive, so manufacturers, applicants, test laboratories and network operators can assess spectrum use, unwanted emissions, control and monitoring behavior, and equipment identity.
What does SIST EN 301 721:2001 specify?
SIST EN 301 721:2001 applies to Mobile Earth Stations (MES) used for Low Bit Rate Data Communications (LBRDC) through LEO satellites in frequency bands below 1 GHz. It covers Base MES (BMES), Vehicle mounted MES (VMES) and Portable MES (PMES), and it is aimed at radio equipment that must avoid harmful interference while sharing spectrum with other services.
The scope notes that the MES are controlled and monitored by a Network Control Facility (NCF), but the NCF itself is outside the scope. The standard also states that it does not cover installation of the MES. Clause 1 defines the operating context, Clause 2 lists the references, Clause 3 gives definitions and abbreviations, Clause 4 sets the technical requirements, Clause 5 gives the test methods, and Annex A provides the EN Requirements Table (EN-RT).
Table 1 lists the transmit and receive frequency ranges for the MES service bands below 1 GHz. That matters because the requirement limits and test setups are tied to the bands the equipment is designed to use.
What are the key requirements of SIST EN 301 721:2001?
SIST EN 301 721:2001 concentrates on spectrum use, spurious emissions, control behavior and equipment identity. The most important requirements are in Clause 4, with test conditions and laboratory methods in Clause 5.
Environmental profile - Clause 4.1 and Clause 5.1
The MES must comply across the declared operating environment: temperature from -10 °C to +55 °C, the declared voltage range, and the vibration profile taken from IEC 68-2-36. In practice, the designer and tester must prove the radio still meets the limits at the operating extremes the product is meant to see.Unwanted emissions outside the operational bands - Clause 4.2.1
The MES must limit emissions outside the listed transmit bands to protect other terrestrial, space and radio astronomy services. The requirement is checked at minimum and maximum transmit frequencies, with carrier-on operation and defined measurement bandwidths, so the manufacturer has to show the transmitter stays clean at the edges of its band and beyond it.Unwanted emissions inside the operational bands but outside the nominated bandwidth - Clause 4.2.2
The standard sets limits for emissions that fall inside the transmit band but outside the nominated bandwidth. This matters because nearby users in the same band can still be affected even when the transmitter stays inside its allocated band.EIRP density in the operational band - Clause 4.2.3
The Equivalent Isotropically Radiated Power (EIRP) density in any 4 kHz band must stay within the stated limits for DS-SSMA and FDMA systems. In practice, this is the main check on how much power the MES can radiate in its intended operating band.Carrier-off state emissions - Clause 4.2.4
When the MES is powered on but not transmitting, its unwanted emissions must remain below the stated limit in any 100 kHz. This matters for standby behavior, because a silent terminal must stay radio-silent enough not to disturb other services.Control and Monitoring Functions (CMF) - Clause 4.2.5
The MES must monitor processor faults and transmit-frequency-generation faults, suppress transmission after the defined fault intervals, start in a controlled non-transmitting state after power-on, and obey network control authorization and disable/enable commands from the NCF. The carrier frequency must also be controlled so the entire nominated bandwidth remains inside the declared operational band.Equipment identity and Radio Astronomy Service (RAS) protection - Clauses 4.2.6 and 4.2.7
Each MES must have a unique MES Identification Code (MIC) that the user cannot change through normal access, and it must support transmission suppression to protect the Radio Astronomy Service in the adjacent protected bands.
Annex A turns these requirements into an EN-RT checklist for conformity assessment.
What terms does SIST EN 301 721:2001 define?
- Base MES (BMES) - An MES intended for a fixed location and powered by AC or DC supply.
- Carrier-off state - The MES is powered but not transmitting.
- Carrier-on state - The MES is transmitting, whether continuously or in bursts.
- Equivalent Isotropically Radiated Power (EIRP) - The transmitter power multiplied by antenna gain, expressed as if the signal came from an isotropic radiator.
- Network Control Facility (NCF) - The network-side facility that sends control information and commands to the MES.
- Special Test Equipment (STE) - Test equipment supplied by the applicant to simulate network control channel behavior and NCF commands.
- MES Identification Code (MIC) - The unique code used to identify an MES within its network.
- Portable MES (PMES) - An MES intended to be portable, battery powered and generally self-contained.
Who uses SIST EN 301 721:2001?
Manufacturers and their authorized representatives use SIST EN 301 721:2001 to design MES products and declare the operating band, antenna data, voltage range, fault shutdown behavior and test modes. Test laboratories use it to set up radiated and conducted measurements, including the STE and Laboratory Test Equipment (LTE) arrangements.
Quality and compliance teams use it to build the technical file for Article 3.2 assessment, while satellite network operators use it when they specify network control channel behavior, nominated bandwidth information and control messages. Buyers and integrators use it to check whether a MES is the right type for a fixed installation, vehicle installation or portable use case.
Which standards are used with SIST EN 301 721:2001?
- Directive 1999/5/EC - the R&TTE legal framework that the standard addresses under Article 3.2.
- IEC 68-2-1 - the cold environmental test basis used for the temperature profile.
- IEC 68-2-2 - the dry heat environmental test basis used for the temperature profile.
- IEC 68-2-36 - the random vibration test basis used for the vibration profile.
- Directive 98/34/EC - the procedure cited in the foreword for the European Commission mandate.
- EN 300 721 - the earlier ETSI standard on which this document is based.
What does the SIST EN 301 721:2001 document contain?
The document contains the service-band table, the environmental profile, the emission limit tables, and the CMF requirements and procedures. It also includes the test modes, STE description, measurement uncertainty limits, and the setup options for host-connected equipment and plug-in modules.
Figures 2 to 6 show the control-and-monitoring test arrangement and the radiated and conducted emission measurement setups. Clause 5 explains how to test under normal and extreme voltage conditions, how to position the MES, and how to record test reports.
Annex A provides the EN Requirements Table (EN-RT), which condenses the mandatory requirements into a conformity checklist. That is useful for design reviews, lab reports and compliance files.
Relations
- Effective Date
- 25-Jan-2010
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Frequently Asked Questions
SIST EN 301 721:2001 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Satellite Earth Stations and Systems (SES); Harmonized EN for Mobile Earth Stations (MES) providing Low Bit Rate Data Communications (LBRDC) using Low Earth Orbiting (LEO) satellites operating below 1 GHz covering essential requirements under Article 3.2 of the R&TTE directive". This standard covers: This Harmonised Standard will specify the technical requirements that apply to Mobile Earth Stations (MESs) for compliance with article 3.2 of the R&TTE Directive 1999/5/EC. The Mobile Earth Stations (MESs) have the following characteristics: The MESs will operate in frequency ranges below 1 GHz, which are expected to be allocated to Mobile Satellite Data Services operating in bands below 1 GHz, the use of which is expected to be harmonised through implementation of ERC Decisions accordance with the ITU Radio Regulations to the Mobile Satellite Services; The MESs could be either a based MES (BMES), a vehicle mounted MES (VMES) or a portable MES (PMES); The MESs operate through satellites in Low Earth Orbit (LEO) as part of a network providing low bit rate data communications; The MESs are controlled and monitored by a Network Control Facility (NCF). The NCF is outside the scope of this Harmonised Standard. The requirements of this Harmonised Standard shall be selected to ensure an adequate level of compatibility with other radio services. This Harmonised Standard does not contain any requirement, recommendation or information about the installation of the MESs Compliance of a MES to the requirements of this Harmonised Standard does not imply that the MES may be used. In conformity with Article 3.2 of Directive 1999/5/EC, the use of such equipment may be subject to licensing terms in conformity with Community law.
This Harmonised Standard will specify the technical requirements that apply to Mobile Earth Stations (MESs) for compliance with article 3.2 of the R&TTE Directive 1999/5/EC. The Mobile Earth Stations (MESs) have the following characteristics: The MESs will operate in frequency ranges below 1 GHz, which are expected to be allocated to Mobile Satellite Data Services operating in bands below 1 GHz, the use of which is expected to be harmonised through implementation of ERC Decisions accordance with the ITU Radio Regulations to the Mobile Satellite Services; The MESs could be either a based MES (BMES), a vehicle mounted MES (VMES) or a portable MES (PMES); The MESs operate through satellites in Low Earth Orbit (LEO) as part of a network providing low bit rate data communications; The MESs are controlled and monitored by a Network Control Facility (NCF). The NCF is outside the scope of this Harmonised Standard. The requirements of this Harmonised Standard shall be selected to ensure an adequate level of compatibility with other radio services. This Harmonised Standard does not contain any requirement, recommendation or information about the installation of the MESs Compliance of a MES to the requirements of this Harmonised Standard does not imply that the MES may be used. In conformity with Article 3.2 of Directive 1999/5/EC, the use of such equipment may be subject to licensing terms in conformity with Community law.
SIST EN 301 721:2001 is classified under the following ICS (International Classification for Standards) categories: 33.070.40 - Satellite. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 301 721:2001 has the following relationships with other standards: It is inter standard links to SIST EN 301 721:2002. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 301 721:2001 is associated with the following European legislation: Standardization Mandates: M/284. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN 301 721:2001 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Satellite Earth Stations and Systems (SES); Harmonized EN for Mobile Earth Stations (MES) providing Low Bit Rate Data Communications (LBRDC) using Low Earth Orbiting (LEO) satellites operating below 1 GHz covering essential requirements under Article 3.2 of the R&TTE directive33.070.40SatelitSatelliteICS:Ta slovenski standard je istoveten z:EN 301 721 Version 1.1.136IST EN 301 721:2001en01-MXOLM-20013SIST EN 301 721:2001SLOVENSKI
STANDARD
ETSIEN301721V1.1.1(2000-05)CandidateHarmonizedEuropeanStandard(Telecommunicationsseries)SatelliteEarthStationsandSystems(SES);HarmonizedENforMobileEarthStations(MES)providingLowBitRateDataCommunications(LBRDC)usingLowEarthOrbiting(LEO)satellitesoperatingbelow1GHzcoveringessentialrequirementsunderArticle3.2oftheR&TTEdirectiveSIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)2ReferenceDEN/SES-00052Keywordssatellite,mobile,earthstation,MES,MSS,LEO,regulationETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)3ContentsIntellectualPropertyRights.6Foreword.6Introduction.61Scope.92References.93Definitionsandabbreviations.103.1Definitions.103.2Abbreviations.114Technicalrequirementsspecifications.124.1Environmentalprofile.124.1.1General.124.1.2Temperature.124.1.3Voltage.124.1.4Vibration.124.2Conformancerequirements.124.2.1Unwantedemissionoutsidethebands148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz.124.2.1.1Justification.124.2.1.2Technicalrequirements.134.2.1.3Conformancetest.134.2.1.4TestCondition.144.2.1.5Testrequirements.144.2.2Unwantedemissionwithinthebands148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz.154.2.2.1Justification.154.2.2.2Technicalrequirements.154.2.2.3Conformancetest.154.2.2.4Testcondition.164.2.2.5Testrequirements.164.2.3EIRPdensitywithintheoperationalband.164.2.3.1Justification.164.2.3.2Technicalrequirements.174.2.3.3Conformancetest.174.2.3.4Testcondition.174.2.3.5Testrequirements.184.2.4Unwantedemissionsincarrier-offstate.184.2.4.1Justification.184.2.4.2Technicalrequirements.184.2.4.3Conformancetest.184.2.4.4Testcondition.184.2.4.5Testrequirements.194.2.5MESControlandMonitoringFunctions(CMF).194.2.5.1Justification.194.2.5.2SpecialTestEquipment(STE).194.2.5.3Technicalrequirements.194.2.5.3.1Self-monitoringfunctions.194.2.5.3.1.1Processormonitoring.194.2.5.3.1.2Transmitfrequencygenerationsub-systemmonitoring.194.2.5.3.1.3Conformancetest.194.2.5.3.2Networkcontrolauthorizationandreception-Networkcontrolauthorization.204.2.5.3.2.1Requirements.204.2.5.3.2.2Conformancetest.20SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)44.2.5.3.2.3Testprocedureandrequirements.204.2.5.3.3Networkcontrolauthorizationandreception-Networkcontrolreception.204.2.5.3.3.1Transmissiondisable/enable.204.2.5.3.3.2Conformancetest.214.2.5.3.3.3Testprocedureandrequirements.214.2.5.3.4Transmitfrequencycontrol.214.2.5.3.4.1Requirements.214.2.5.3.4.2Conformancetest.214.2.5.3.4.3Testprocedureandrequirements.214.2.6Equipmentidentity.224.2.6.1Justification.224.2.6.2Technicalrequirements.224.2.6.3Conformancetest.224.2.6.4Testprocedure.224.2.6.5Testrequirements.224.2.7ProtectionoftheRadioAstronomyService(RAS)fromemissionsproducedbytheMESinthebands150,05MHzto153MHz,322MHzto328,6MHzand406,1MHzto410MHz.234.2.7.1Justification.234.2.7.2Technicalrequirements.234.2.7.3Conformancetest.234.2.7.4Testprocedure.234.2.7.5Testrequirement.235Testingforcompliancewithtechnicalrequirements.235.1Environmentalconditionsfortesting.235.1.1General.235.1.2Specificationoftheenvironmentaltestconditions.235.1.3Testsunderextremevoltageconditions.245.2Essentialradiotestsuites.245.2.1Presentationofequipmentfortestingpurposes.245.2.2Descriptionofequipment.245.2.3Host-connectedequipment.255.2.4Generaltestrequirements.255.2.4.1MEStestmodes.255.2.4.2SpecialTestEquipment(STE).255.2.4.2.1STEdescription.255.2.4.2.2UseofSTEforcontrolandmonitoringfunctionstests.265.2.4.2.3Testmodulatingsignal.265.2.4.3LaboratoryTestEquipment(LTE).265.2.4.4MethodsoftestforMESRFemissions.275.2.4.5Interpretationofthemeasurementresults.275.2.4.6Testreport.275.2.5Testingofhost-connectedequipmentandplug-inmodules.275.2.5.1Alternativeapproaches.275.2.5.2AlternativeA:combinedequipment.275.2.5.3AlternativeB:useofatestjig.285.2.6Proceduresformeasurementofradiatedemissions.285.2.6.1General.285.2.6.2Testsite.285.2.6.3TestsetupforradiatedemissionsoftheMES.285.2.6.4ReferencepositionoftheMES.295.2.6.5Measurementprocedureforradiatedemissions(average).295.2.6.5.1MeasurementprocedureforaverageradiatedemissionsoftheMES.295.2.6.5.2Measurementprocedureforaverageradiatedemissionsofthecabinet.315.2.7Proceduresformeasurementofconductedemissions.325.2.7.1General.325.2.7.2Testsite.325.2.7.3Testset-up.325.2.7.4Measurementprocedureforconductedemissions(average).32SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)5AnnexA(normative):TheENRequirementsTable(EN-RT).33Bibliography.35History.36SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)6IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinSR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinSR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisCandidateHarmonizedEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeSatelliteEarthStationsandSystems(SES).ThepresentdocumenthasbeenproducedbyETSIinresponsetoamandatefromtheEuropeanCommissionissuedunderCouncilDirective98/34/EC[5](asamended)layingdownaprocedurefortheprovisionofinformationinthefieldoftechnicalstandardsandregulations.ThepresentdocumentisintendedtobecomeaHarmonizedStandard,thereferenceofwhichwillbepublishedintheOfficialJournaloftheEuropeanCommunitiesreferencingtheDirective1999/5/EC[1]oftheEuropeanParliamentandoftheCouncilof9March1999onradioequipmentandtelecommunicationsterminalequipmentandthemutualrecognitionoftheirconformity("theR&TTEDirective").NationaltranspositiondatesDateofadoptionofthisEN:28April2000DateoflatestannouncementofthisEN(doa):31July2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31January2001DateofwithdrawalofanyconflictingNationalStandard(dow):31January2001IntroductionETSIhasdesignedamodularstructureforthestandards.Eachstandardisamoduleinthestructure.Themodularstructureisshowninfigure1.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)7NewstandardforHealthforradio(ifneeded)Useofspectrum*IfneededScopedbyequipmentclassortypeScopedbyfrequencyand/orequipmenttypeDisability*Privacy*Fraud*Noharmtothenetwork*Emergency*Inter-workingviathenetwork*Inter-workingwiththenetworkNon-radioRadio(RE)Non-TTETTE3.1b3.23.3c3.3b3.3a3.3d3.3e3.3fRadioProductEMCExistingEMCstandardstobereplacedbyanewsinglemulti-partstandardGenericandbasestandardsalsonotifiedunderEMCDirectiveStandardsalsonotifiedunderLVDDirective(inclacousticsafetyifneeded)3.1aNewradioharmonisedstandardsSpectrumEMCSafetyFigure1:ModularstructureforthevariousstandardsusedundertheR&TTEDirectiveThelefthandedgeofthefigureshowsthedifferentsubclausesofArticle3oftheDirective.Forarticle3.3varioushorizontalboxesareshown.TheirdottedlinesindicatethatnoessentialrequirementsintheseareashaveyetbeenadoptedbytheCommission.Ifsuchessentialrequirementsareadopted,theywillbeelaboratedinindividualstandardswhosescopeislikelytobespecifiedbyfunctionorinterfacetype.Theverticalboxesshowthestandardsunderarticle3.2fortheuseoftheradiospectrum.Thescopesofthesestandardsarespecifiedeitherbyfrequency(normallyinthecasewherefrequencybandsareharmonized)orbyradioequipmenttype.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)8Forarticle3.1(b),thediagramshowsthenewsinglemulti-partproductEMCstandardforradio,andtheexistingcollectionofgenericandbasestandardscurrentlyusedundertheEMCDirective.Thepartsofthisnewstandardwillbecomeavailableinthesecondhalfof2000,andtheexistingseparateEMCstandardswillbeuseduntilitisavailable.Forarticle3.1(a)thediagramshowstheexistingsafetystandardscurrentlyusedundertheLVDDirectiveandthepossibilityofanewstandardonhealthrelatingtoradioemissionsThebottomofthefigureshowstherelationshipofthestandardstoradioequipmentandtelecommunicationsterminalequipment.Aparticularequipmentmayberadioequipment,telecommunicationsterminalequipmentorboth.Themodularapproachhasbeentakenbecause:-itminimizesthenumberofstandardsneeded.Becauseequipmentmayhavemultipleinterfacesandfunctionsitisnotpracticabletoproduceasinglestandardforeachpossiblecombinationoffunctionsthatmayoccurinanequipment;-itprovidesscopeforstandardstobeadded:-underarticle3.2whennewfrequencybandsareagreed;or-underarticle3.3shouldtheCommissiontakethenecessarydecisions;withoutrequiringalterationofstandardsthatarealreadypublished.ThepresentdocumentisbasedonEN300721[6].Therequirementsofthepresentdocumenthavebeenselectedtoensureanadequatelevelofcompatibilitywithotherradioservices.Thepresentdocumentdoesnotcontainanyrequirement,recommendation,orinformationabouttheinstallationoftheMESs.Thedeterminationoftheparametersoftheuserearthstationsusingagivensatelliteconstellationfortheprotectionofthespectrumallocatedtothatsatelliteconstellation,isconsideredtobeundertheresponsibilityofthesatelliteoperatororthesatellitenetworkoperators.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)91ScopeThepresentdocumentappliestoMobileEarthStations(MES)providingLowBitRateDataCommunications(LBRDC)usingLowEarthOrbiting(LEO)satellitesandwhichhavethefollowingcharacteristics:-theMEScouldbeaBasedMES(BMES),aVehiclemountedMES(VMES),oraPortableMES(PMES);-theMESsoperatethroughsatellitesinLowEarthOrbit(LEO)aspartofanetworkprovidingLowBitRateDataCommunications(LBRDC);-theseradioequipmenttypesarecapableofoperatinginalloranypartofthefrequencybandsgivenintable1.Table1:FrequencyRangesMESTransmitfrequenciesandServiceallocations(MHz)MESReceivefrequenciesandServiceallocations(MHz)148to149,9MSS137to137,025MSS149,9to150,05LMSS137,025to137,175MSS235to322MSS137,175to137,825MSS335,4to399,9MSS137,825to138MSS399,9to400,05LMSS235to322MSS335,4to399,9MSS400,15to401MSSThepresentdocumentisintendedtocovertheprovisionsofArticle3.2,whichstatesthat"…radioequipmentshallbesoconstructedthatiteffectivelyusesthespectrumallocatedtoterrestrial/spaceradiocommunicationsandorbitalresourcessoastoavoidharmfulinterference."ofDirective1999/5/EC[1](R&TTEDirective).Inadditiontothepresentdocument,otherENsthatspecifytechnicalrequirementsinrespectofessentialrequirementsunderotherpartsofArticle3oftheR&TTEDirective[1]mayapplytoequipmentwithinthescopeofthepresentdocument.NOTE1:AlistofsuchENsisincludedontheETSIwebsite.NOTE2:TheMESsarecontrolledandmonitoredbyaNetworkControlFacility(NCF).TheNCFisoutsidethescopeofthepresentdocument.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]Directive1999/5/ECoftheEuropeanParliamentandoftheCouncilof9March1999onradioequipmentandtelecommunicationsequipmentandthemutualrecognitionoftheirconformity.[2]IECPublication68-2-1:"Environmentaltesting-Part2:Tests.TestsA:Cold".[3]IECPublication68-2-2:"Environmentaltesting-Part2:Tests.TestsB:Dryheat".SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)10[4]IECPublication68-2-36:"Environmentaltesting.Part2:Tests.TestFdb:Randomvibrationwideband-ReproducibilityMedium".[5]Directive98/34/ECoftheEuropeanParliamentandoftheCouncilof22June1998layingdownaprocedurefortheprovisionofinformationinthefieldoftechnicalstandardsandregulations.[6]EN300721:"SatelliteEarthStationsandSystems(SES);MobileEarthStations(MES)providingLowBitRateDataCommunications(LBRDC)usingLowEarthOrbiting(LEO)satellitesoperatingbelow1GHz".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thetermsanddefinitionsintheR&TTEDirective[1],andthefollowingtermsanddefinitionsapply:applicant:manufacturerorhisauthorizedrepresentativewithintheEuropeanCommunityorthepersonresponsibleforplacingtheapparatusonthemarket.BMES:MESintendedtobeinstalledinafixedlocation,andwhichispoweredeitherbyDCorACsupply.carrier-offstate:MESisinthisstatewhenitisnottransmittingasignal,i.e.notinthecarrier-onstate.carrier-onstate:MESisinthisstatewhenitistransmittingasignalinacontinuousornon-continuousmode.controlchannel:controlchannelmaybeeitheracommandtoaparticularMESorasignalfromthesatellitecontainingcontrolinformationtoappropriatelyenableordisabletransmissionsfromaMES.conductedmeasurement:measurementofemissionsfromanantennaportoftheMESmadebydirectwiredconnectiontotheport.environmentalprofile:rangeofenvironmentalconditionsunderwhichequipmentwithinthescopeofthepresentdocumentisrequiredtocomplywiththeprovisionsofthepresentdocument.EquivalentIsotropicallyRadiatedPower(EIRP):productoftransmitterpowerandantennagain,equivalenttoanisotropicsourceradiatinguniformlyinalldirections.host-connected:indicatesanMESforwhichconnectiontoorintegrationwithhostequipmentisnecessarytoofferfunctionality.hostequipment:isanyequipmentwhichhasacompleteuserfunctionalitywhennotconnectedtotheMES,andtowhichtheMESprovidesadditionalfunctionality,andtowhichconnectionisnecessaryfortheMEStoofferfunctionality.InstallableEquipment(IE),InternallyMountedEquipment(IME)AndExternallyMountedEquipment(EME):InstallableEquipment(IE)isanequipmentwhichisintendedtobeinstalledinavehicle.AnIEmayconsistofoneorseveralinterconnectedmodules.TheIEiscomposedofmodulesintendedtobeexternallymountedasdeclaredbytheapplicant,anddefinedasExternallyMountedEquipment(EME)andtheremainingmodules(s)asInternallyMountedEquipment(IME).LaboratoryTestEquipment(LTE):logicalgroupingthatcontainsthestandardtestequipment.MSSband:continuousrangeoffrequenciesallocatedbytheITUtotheMSS(MobileSatelliteService).narrow-bandsystem:narrow-bandsystemisoneinwhichthenominalcarrierfrequencyspacingforMESsintheEarth-to-spacedirectionislessthan300kHz.networkcontrolchannel:channelbywhichanMESreceivesgeneralcontrolinformationfromtheNCF.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)11NCFcontrolmessage:message,normallyoriginatingfromanetwork,toaspecifiedterminalorsetofterminalsofthenetworkwhichindicatestotheterminalorsetofterminalsthatit/theyshouldcarryoutsomespecificactionorshouldenterormaintainsomespecificstate.FortestpurposesNCFcontrolmessagesmayoriginatefromSpecialTestEquipment(STE).nominatedbandwidth:bandwidthoftheMESradiofrequencytransmissionisnominatedbytheapplicant.Thenominatedbandwidthiswideenoughtoencompassallspectralelementsofthetransmissionwhichhavealevelgreaterthanthespecifiedunwantedemissionslimits.Thenominatedbandwidthiswideenoughtotakeaccountofthetransmitcarrierfrequencystability.ThenominatedbandwidthiswithintheMSStransmitfrequencybandwithinwhichtheMESoperates.NOTE:ForFDMA/DCAAsystemstheNominatedBandwidthdoesnotexceed25kHz.PMES:MESintendedtobeportable,andwhichispoweredbyastandalonebattery,andgenerallyintendedtobeself-containedandfreestanding.APMESwouldnormallyconsistofasinglemodule,butmayconsistofseveralinterconnectedmodules.InsomecasesdifferentspecificationsapplytoPMESandthisisnotedintherelevanttextradiatedmeasurement:measurementofanactualradiatedfield.SpecialTestEquipment(STE):equipmentwhichpermitscontroloftheMESsothatthetestsrequiredbythepresentdocumentcanbeperformed.testload:testloadisasubstantiallynon-reactive,non-radiatingpowerattenuatorwhichiscapableofsafelydissipatingthepowerfromthetransmitter(s).unwantedemissions:unwantedemissionsarethosefallingoutsidethenominatedbandwidthinthecarrier-onstate,andthosegeneratedinthecarrier-offstate.VMES:MESintendedtobeinstalledonavehicle.wide-bandsystem:wide-bandsystemisoneinwhichthenominalcarrierfrequencyspacingforMESsintheEarth-to-spacedirectionisequaltoorgreaterthan300kHz.3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ACAlternatingCurrentASDAccelerationSpectralDensityBMESBaseMESCMFControlandMonitoringFunctionDCDirectCurrentDCAADynamicChannelActivityAssignmentDS-SSMADirectSequenceSpreadSpectrumMultipleAccessEIRPEquivalentIsotropicallyRadiatedPowerEMCElectro-MagneticCompatibilityEMEExternallyMountedEquipmentFDMAFrequencyDivisionMultipleAccessIEInstallableEquipmentIECInternationalElectrotechnicalCommission/CommitteeIMEInternallyMountedEquipmentLBRDCLowBitRateDataCommunicationsLMSSLandMobileSatelliteServiceLTELaboratoryTestEquipmentMESMobileEarthStationMICMESIdentificationCodeMSSMobileSatelliteServiceNCFNetworkControlFacilityPMESPortableMESppmpartspermillionR&TTERadioandTelecommunicationsTerminalEquipmentRASRadioAstronomyServiceSIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)12RFRadioFrequencySTESpecialTestEquipmentVMESVehicleMountedMES4Technicalrequirementsspecifications4.1Environmentalprofile4.1.1GeneralThetechnicalrequirementsofthepresentdocumentapplyundertheenvironmentalprofilespecifiedbelowforoperationoftheequipment.Theequipmentshallcomplywithallthetechnicalrequirementsofthepresentdocumentatalltimeswhenoperatingwithintheboundarylimitsofthespecifiedoperationalenvironmentalprofile.4.1.2TemperatureTheMESshallfulfilalltherequirementsinthefulltemperaturerangesof:-10°Cto+55°C;takenfromIECpublications68-2-1[2]and68-2-2[3].ForMESsexpectedtooperateinanenvironmentoutsidethistemperaturerangetheapplicantwilltakethenecessaryactionstoensureproperoperation.4.1.3VoltageTheapplicantshalldeclarethenominal,lowerandthehigherextremevoltages.TheMESshallfulfilalltherequirementsinthefullvoltagerangebetweentheextremevoltages.4.1.4VibrationTheMESshallfulfilalltherequirementswhenvibratedatthefrequency/amplitudesgivenintable2.Table2:VibrationcharacteristicsFrequencyrangeASD(AccelerationSpectralDensity)randomvibration5Hzto20Hz0,96m2/s3(+0/-5%)20Hzto500Hz0,96m2/s3(+0/-5%)at20Hz,thereafter-3dB/Octave(+0/-5%)(takenfromIECPublication68-2-36[4])4.2Conformancerequirements4.2.1Unwantedemissionoutsidethebands148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz4.2.1.1JustificationToprotectotherterrestrialservices,spaceradiocommunicationsservicesandtheradioastronomyservicesfromemissionscausedbyMESsoutsidethebands148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)134.2.1.2TechnicalrequirementsTheunwantedemissionsfromtheMESoutsidetheuplinkbands148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz,withinwhichtheMESisdesignedtooperate,shallnotexceedthelimitsshownintables3,4and5.Table3:UnwantedemissionsforFDMAMESsoutsidetheoperationalband148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHzFrequencyMaximumEIRPdensity(dBpW)Measurement(MHz)FDMABandwidth0,1to14854100kHz150,05to23554100kHz322to335,454100kHz400,05to100054100kHz1000to1559601MHz1559to1626,5501MHz1626,5to12750601MHzTable4:UnwantedemissionsforDS-SSMAMESsoutsidetheoperationalband148MHzto150,05MHzFrequencyMaximumEIRPdensity(dBpW)Measurement(MHz)DS-SSMAbandwidth0,1to14654100kHz146to147,570100kHz147,5to14870-105(seenote)100kHz150,05to151,1570100kHz151,15to100054100kHz1000to1559601MHz1559to1626,5501MHz1626,5to12750601MHzNOTE:LinearlyinterpolatedindBpWvs.Frequency.Table5:UnwantedemissionsforDS-SSMAMESsoutsidetheoperationalbands235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHzFrequency(MHz)MaximumEIRPdensity(dBpW)Measuringbandwidth0,1to3054100kHz30to23554100kHz322to335,454100kHz400,05to100054100kHz1000to1559601MHz1559to1626,5501MHz1626,5to12750601MHzIntables3,4and5,wheneverachangeoflimitbetweenadjacentfrequencybandsoccurs,thelowerofthetwolimitsshallapplyatthetransitionfrequency.Thetechnicalrequirementsapplyforthefullrangeofenvironmentalconditionscorrespondingtothetypeofequipmentasspecifiedinsubclause5.1.2(seesubclause5.2.2).4.2.1.3ConformancetestThistestshallbecarriedoutfortwoMESfrequenciesifavailable,theminimumandthemaximumMEStransmitfrequenciesforwhichtheMESisdesignedtooperate,asspecifiedbytheapplicant.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)14Theenvironmentaltestconditionsaregiveninsubclause5.1.2.Foreachtest,theMESshallbesettotransmit(carrier-onstate)ononeofthespecifiedtransmittingfrequenciestobetestedatitsmaximumpowerforthattransmitfrequency,bymeansoftheSTEorbyanothertestfacilityprovidedbytheapplicant.IfthereisahandoverfunctionintheMES(toallowchangeoffrequencychannelduringatransmission),thisfunctionshallbedisabled.ThetransmittedcarriershallbemodulatedbyapseudorandombitsequencegeneratedbytheMESorbytheSTE.ForaMESoperationalinshortburstmode,thissequencewillbeoflengthcompatiblewiththemaximumburstlengthduration.Otherwisethetransmittedcarriershallbemodulatedbyatestsignalatmaximumrateasspecifiedinsubclause5.2.4.2.3.Inthetestequipment,thespectrumanalysernoisefloorshallbeatleast6dBbelowtheappropriatelimitsgivenintables3,4and5.Themeasurementsareperformedwiththeradiatedorwiththeconductedmethodaccordingtothecasesdefinedinsubclause5.2.4.4.Formeasurementsofradiatedunwantedemissions,subclause5.2.6applies.Formeasurementsofconductedunwantedemissions,subclause5.2.7applies.4.2.1.4TestConditionThespectrumanalyzershallbesetinsweepmodeandshallbeoperatedunderthefollowingconditions:frequencysweep:asrequiredforfrequencyrangetobeassessed;resolutionbandwidth:measurementbandwidthspecifiedintables3,4and5;displaybandwidth:equaltothemeasurementbandwidth;averaging:yes;peakhold:no.Themeasurementtimeshallbesuchthatthedifferenceofthemeasuredlevels,averagedoversubsequentmeasurementsamples,islessthan1dB,orameasurementtimeof100msmaybeusedifthemeasuredvaluescomplywiththeapplicablelimits.ForaMESoperatinginanon-continuouscarriermode,themeasurementshallbeperformedovertheactivepartofthetransmittedbursts.Thetotalsampletimeusedformeasurementshallbenotlessthan40%ofthedurationoftheactivepartofthetransmittedburst.Themeasurementshallbemadeovertherandompartoftheburst,excludinganypreamblesorsynchronizationsequences.ThesemeasurementsmaybeperformedwiththeMESoperatingincontinuousmodeiftheMESiscapableofsuchoperation.4.2.1.5TestrequirementsFormeasurementsofradiatedunwantedemissionsoftheMES,themeasuredvaluesshallnotexceedthelimitsgivenintables3,4and5,asapplicable.FormeasurementsofconductedunwantedemissionsoftheMES,themeasuredvaluesplusthedeclaredmaximumantennagain(orthedeclaredantennagainatthefrequencyofthemeasuredspuriousemission-inaccordancewithsubclause5.2.2)shallinnocaseexceedthelimitsgivenintables3,4and5.Verification:BymeasurementofunwantedemissionsgeneratedbyanoperatingMES.AllRFtestsinthissubclauseshallbecarriedoutatenvironmentalconditionsasspecifiedinsubclause5.1.2.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)15Alltestsinthecarrier-onstateshallbeundertakenwiththetransmitteroperatingatfullpowerandwiththemaximumtransmitburstratewhereapplicable.Toenabletheperformanceteststobecarriedout,theuseofSpecialTestEquipment(STE),suppliedbytheapplicant,maybenecessary.SincethisSTEwillbespecificfortheparticularsystem,itisnotpossibletoprovidedetailedspecificationsinthepresentdocument.However,thefollowingbaselineisprovided:-iftheMESrequirestoreceiveamodulatedcarrierfromthesatelliteinordertotransmit,thenspecialtestarrangementsarerequiredtosimulatethesatellitesignal,thusenablingtheMEStotransmitallowingmeasurementoftransmissionparameters;-anyspecificationofthesespecialtestarrangementswhichmayhavedirectorindirecteffectsonanyrequirementorrecommendationofthepresentdocumentshallbeclearlystatedbytheapplicant.4.2.2Unwantedemissionwithinthebands148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz4.2.2.1JustificationToprotectotherterrestrialandspaceradiocommunicationsservicesoperatingintheabovefrequencybands.4.2.2.2TechnicalrequirementsForeachtransmitband148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz,withinwhichtheMESisdesignedtooperate,theunwantedemissionsEIRPinany4kHzbandwithinthattransmitbandandoutsidethenominatedbandwidthshallinthecarrier-onstatenotexceedthelimitsgivenintable6.Table6:UnwantedemissionsEIRPwithintheoperationalbandsbutoutsidethenominatedbandwidthOffsetfromtheedgeofthenominatedbandwidthMaximumEIRPdensity(dBpW/4kHz)DS-SSMAFDMA0to50%ofthenominatedbandwidth90-56(note)7050%to250%ofthenominatedbandwidth5665>250%ofthenominatedbandwidthupto5MHz5665ifapplicable,totheedgeoftheoperationalband5665NOTE:LinearlyinterpolatedindBpWvs.Frequency.Thetechnicalrequirementsapplyforthefullrangeofenvironmentalconditionscorrespondingtothetypeofequipmentasspecifiedinsubclause5.1.2(seesubclause5.2.2).4.2.2.3ConformancetestThistestshallbecarriedoutfortwoMESfrequencies,ifavailable,theminimumandthemaximumtransmitfrequencyforwhichtheMESisdesignedtooperate,asspecifiedbytheapplicant.Twoadditionaltransmitfrequenciesshallbetestedifavailable.Thesefrequenciesshallbeequallyspacedbetweenthelowestandhighesttransmitfrequencies.Thetransmitfrequenciesusedforthetestshallbeenteredinthetestreport.Theenvironmentaltestconditionsaregiveninsubclause5.1.2.Foreachtest,theMESshallbesettotransmit(carrier-onstate)ononeofthespecifiedtransmitfrequenciestobetested,atitsmaximumpowerforthattransmitfrequency,bymeansoftheSTEorbyanothertestfacilityprovidedbytheapplicant.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)16IfthereisahandoverfunctionintheMES(toallowchangeoffrequencychannelduringatransmission),thisfunctionshallbedisabled.Thetransmittedcarriershallbemodulatedbyatestsignalatmaximumrateasspecifiedinsubclause5.2.4.2.3.Inthetestequipment,thespectrumanalyzernoisefloorshallbeatleast6dBbelowtheappropriatelimitsgivenintable6asapplicable.Themeasurementsareperformedwiththeradiatedorwiththeconductedmethodaccordingtothecasesdefinedinsubclause5.2.4.4.Formeasurementsofradiatedunwantedemissions,subclause5.2.6applies.Formeasurementsofconductedunwantedemissions,subclause5.2.7applies.4.2.2.4TestconditionThespectrumanalyzershallbesetinsweepmodeandshallbeoperatedunderthefollowingconditions:frequencysweep:asrequiredforfrequencyrangetobeassessed;resolutionbandwidth:measurementbandwidthspecifiedinsubclause4.2.2.2;displaybandwidth:equaltothemeasurementbandwidth;averaging:yes;peakhold:no.Themeasurementtimeshallbesuchthatthedifferenceofthemeasuredlevels,averagedoversubsequentmeasurementsamples,islessthan1dB,orameasurementtimeof100msmaybeusedifthemeasuredvaluescomplywiththeapplicablelimits.ForaMESoperatinginanon-continuouscarriermode,themeasurementshallbeperformedovertheactivepartofthetransmittedbursts.Thetotalsampletimeusedformeasurementshallbenotlessthan40%ofthedurationoftheactivepartofthetransmittedburst.Themeasurementshallbemadeovertherandompartoftheburst,excludinganypreamblesorsynchronizationsequences.4.2.2.5TestrequirementsFormeasurementsofradiatedunwantedemissionsoftheMES,themeasuredvaluesshallinnocaseexceedthelimitsgivenintable6asapplicable.Formeasurementsofconductedunwantedemissions,themeasuredvaluesplusthemaximumantennagain,shallinnocaseexceedthelimitsgivenintable6asapplicable.4.2.3EIRPdensitywithintheoperationalband4.2.3.1JustificationToprotectotherserviceswhichusethesamefrequencyband.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)174.2.3.2TechnicalrequirementsTheEIRPdensityinany4kHzbandradiatedfromtheMESshallnotexceedthelimitsintable7.Table7:EIRPLimitsDS-SSMAFDMA106dBpW130dBpWTheserequirementsapplytoalltypesofMES,foreverytransmitchanneloftheMESinitsoperationalband.Thetechnicalrequirementsapplyforthefullrangeofenvironmentalconditionscorrespondingtothetypeofequipmentasdescribedinsubclause5.1.2(seesubclause5.2.2).4.2.3.3ConformancetestIfavailableminimumtwoMEStransmitfrequenciesshallbeusedforthistest.ThesefrequenciesshallbetheminimumandthemaximumfrequenciesofthebandforwhichtheMESisdesignedtooperate,asspecifiedbytheapplicant.Whereavailable,theEIRPdensityshallalsobetestedattwoadditionaltransmitfrequencies.Thesefrequenciesshallbeequallyspacedbetweentheminimumandmaximumfrequencies.ThemeasuredEIRPdensitiesandthecorrespondingtransmitfrequenciesusedforthetestshallbeenteredinthetestreport.Theenvironmentaltestconditionsaregiveninsubclause5.1.2.Foreachtest,theMESshallbesettotransmit(carrier-onstate)atitsmaximumpower-onthespecifiedtransmittingfrequencytobetested,bymeansoftheSTEorbyanothertestfacilityprovidedbytheapplicant.IfthereisahandoverfunctionintheMES(toallowchangeoffrequencychannelduringatransmission),thisfunctionshallbedisabled.Thetransmittedcarriershallbemodulatedbyatestsignalatmaximumrateasspecifiedinsubclause5.2.4.2.3.Inthetestequipment,thespectrumanalyzernoisefloorshallbeatleast6dBbelowtheappropriatevaluestobemeasured.Themeasurementsareperformedwiththeconductedorwiththeradiatedmethodaccordingtothecasesdefinedinsubclause5.2.4.4.ForradiatedmeasurementsoftransmittedEIRPdensity,subclause5.2.6applies.ForassessmentoftransmittedEIRPdensitybyconductedmeasurements,subclause5.2.7applies.4.2.3.4TestconditionThespectrumanalyzershallbesetinsweepmodeandshallbeoperatedunderthefollowingconditions:frequencysweep:fromthelowertotheupperlimitsofthenominatedbandwidthofthetransmitchannelundertest;resolutionbandwidth:measurementbandwidthspecifiedinsubclause4.2.3.2displaybandwidth:equaltothemeasurementbandwidth;averaging:yes;peakhold:no.Themeasurementtimeshallbesuchthatthedifferenceofthemeasuredlevels,averagedoversubsequentmeasurementsamples,islessthan1dB,orameasurementtimeof100msmaybeusedifthemeasuredvaluescomplywiththeapplicablelimits.ThesemeasurementsmaybeperformedwiththeMESoperatingincontinuosmodeiftheMESiscapableofsuchoperation.Alternatively,apowermetermaybeusedwithacorrectionfactortoaccountforthedutycycle.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)184.2.3.5TestrequirementsFormeasurementsofradiatedEIRP,themeasuredvaluesshallnotexceedtheappropriatevaluesgiveninsubclause4.2.3.2,foreachspecificfrequencysub-bandandoperatingconditionforwhichthelimitapplies,asspecifiedbytheapplicant.ForassessmentofEIRPbyconductedmeasurement,themeasuredvaluesplusthemaximumantennagain,shallnotexceedtheappropriatevaluesgiveninsubclause4.2.3.2,foreachspecificfrequencybandandoperatingconditionforwhichthelimitapplies,asspecifiedbytheapplicant.4.2.4Unwantedemissionsincarrier-offstate4.2.4.1JustificationToprotectotherradioservicesandsystemsfromunwantedemissionscausedbyMESsinthecarrier-offstate.4.2.4.2TechnicalrequirementsThemaximumEIRPoftheunwantedemissionsfromtheMESsinthecarrier-offstateshallnotexceed33dBpWinany100kHz.Thetechnicalrequirementsapplyforthefullrangeofenvironmentalconditionscorrespondingtothetypeofequipmentasspecifiedinsubclause5.1.2(seesubclause5.2.2).4.2.4.3ConformancetestTheMESshallbeinthepower-onstateandsetinanon-transmitting(carrier-offstate)mode.Ifthereisaperiodicautomatictransmissionofbursts(e.g.forlocationupdating),theSTEshallprovideameanstoinhibitit,ortotriggerthemeasurementinordertoanalyseonlythenon-transmittingperiods.Theenvironmentaltestconditionsaregiveninsubclause5.1.2.Inthetestequipme
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Satellite Earth Stations and Systems (SES); Harmonized EN for Mobile Earth Stations (MES) providing Low Bit Rate Data Communications (LBRDC) using Low Earth Orbiting (LEO) satellites operating below 1 GHz covering essential requirements under Article 3.2 of the R&TTE directive33.070.40SatelitSatelliteICS:Ta slovenski standard je istoveten z:EN 301 721 Version 1.1.1SIST EN 301 721:2001en01-september-2001SIST EN 301 721:2001SLOVENSKI
STANDARD
ETSIEN301721V1.1.1(2000-05)CandidateHarmonizedEuropeanStandard(Telecommunicationsseries)SatelliteEarthStationsandSystems(SES);HarmonizedENforMobileEarthStations(MES)providingLowBitRateDataCommunications(LBRDC)usingLowEarthOrbiting(LEO)satellitesoperatingbelow1GHzcoveringessentialrequirementsunderArticle3.2oftheR&TTEdirectiveSIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)2ReferenceDEN/SES-00052Keywordssatellite,mobile,earthstation,MES,MSS,LEO,regulationETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)3ContentsIntellectualPropertyRights.6Foreword.6Introduction.61Scope.92References.93Definitionsandabbreviations.103.1Definitions.103.2Abbreviations.114Technicalrequirementsspecifications.124.1Environmentalprofile.124.1.1General.124.1.2Temperature.124.1.3Voltage.124.1.4Vibration.124.2Conformancerequirements.124.2.1Unwantedemissionoutsidethebands148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz.124.2.1.1Justification.124.2.1.2Technicalrequirements.134.2.1.3Conformancetest.134.2.1.4TestCondition.144.2.1.5Testrequirements.144.2.2Unwantedemissionwithinthebands148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz.154.2.2.1Justification.154.2.2.2Technicalrequirements.154.2.2.3Conformancetest.154.2.2.4Testcondition.164.2.2.5Testrequirements.164.2.3EIRPdensitywithintheoperationalband.164.2.3.1Justification.164.2.3.2Technicalrequirements.174.2.3.3Conformancetest.174.2.3.4Testcondition.174.2.3.5Testrequirements.184.2.4Unwantedemissionsincarrier-offstate.184.2.4.1Justification.184.2.4.2Technicalrequirements.184.2.4.3Conformancetest.184.2.4.4Testcondition.184.2.4.5Testrequirements.194.2.5MESControlandMonitoringFunctions(CMF).194.2.5.1Justification.194.2.5.2SpecialTestEquipment(STE).194.2.5.3Technicalrequirements.194.2.5.3.1Self-monitoringfunctions.194.2.5.3.1.1Processormonitoring.194.2.5.3.1.2Transmitfrequencygenerationsub-systemmonitoring.194.2.5.3.1.3Conformancetest.194.2.5.3.2Networkcontrolauthorizationandreception-Networkcontrolauthorization.204.2.5.3.2.1Requirements.204.2.5.3.2.2Conformancetest.20SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)44.2.5.3.2.3Testprocedureandrequirements.204.2.5.3.3Networkcontrolauthorizationandreception-Networkcontrolreception.204.2.5.3.3.1Transmissiondisable/enable.204.2.5.3.3.2Conformancetest.214.2.5.3.3.3Testprocedureandrequirements.214.2.5.3.4Transmitfrequencycontrol.214.2.5.3.4.1Requirements.214.2.5.3.4.2Conformancetest.214.2.5.3.4.3Testprocedureandrequirements.214.2.6Equipmentidentity.224.2.6.1Justification.224.2.6.2Technicalrequirements.224.2.6.3Conformancetest.224.2.6.4Testprocedure.224.2.6.5Testrequirements.224.2.7ProtectionoftheRadioAstronomyService(RAS)fromemissionsproducedbytheMESinthebands150,05MHzto153MHz,322MHzto328,6MHzand406,1MHzto410MHz.234.2.7.1Justification.234.2.7.2Technicalrequirements.234.2.7.3Conformancetest.234.2.7.4Testprocedure.234.2.7.5Testrequirement.235Testingforcompliancewithtechnicalrequirements.235.1Environmentalconditionsfortesting.235.1.1General.235.1.2Specificationoftheenvironmentaltestconditions.235.1.3Testsunderextremevoltageconditions.245.2Essentialradiotestsuites.245.2.1Presentationofequipmentfortestingpurposes.245.2.2Descriptionofequipment.245.2.3Host-connectedequipment.255.2.4Generaltestrequirements.255.2.4.1MEStestmodes.255.2.4.2SpecialTestEquipment(STE).255.2.4.2.1STEdescription.255.2.4.2.2UseofSTEforcontrolandmonitoringfunctionstests.265.2.4.2.3Testmodulatingsignal.265.2.4.3LaboratoryTestEquipment(LTE).265.2.4.4MethodsoftestforMESRFemissions.275.2.4.5Interpretationofthemeasurementresults.275.2.4.6Testreport.275.2.5Testingofhost-connectedequipmentandplug-inmodules.275.2.5.1Alternativeapproaches.275.2.5.2AlternativeA:combinedequipment.275.2.5.3AlternativeB:useofatestjig.285.2.6Proceduresformeasurementofradiatedemissions.285.2.6.1General.285.2.6.2Testsite.285.2.6.3TestsetupforradiatedemissionsoftheMES.285.2.6.4ReferencepositionoftheMES.295.2.6.5Measurementprocedureforradiatedemissions(average).295.2.6.5.1MeasurementprocedureforaverageradiatedemissionsoftheMES.295.2.6.5.2Measurementprocedureforaverageradiatedemissionsofthecabinet.315.2.7Proceduresformeasurementofconductedemissions.325.2.7.1General.325.2.7.2Testsite.325.2.7.3Testset-up.325.2.7.4Measurementprocedureforconductedemissions(average).32SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)5AnnexA(normative):TheENRequirementsTable(EN-RT).33Bibliography.35History.36SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)6IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinSR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinSR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisCandidateHarmonizedEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeSatelliteEarthStationsandSystems(SES).ThepresentdocumenthasbeenproducedbyETSIinresponsetoamandatefromtheEuropeanCommissionissuedunderCouncilDirective98/34/EC[5](asamended)layingdownaprocedurefortheprovisionofinformationinthefieldoftechnicalstandardsandregulations.ThepresentdocumentisintendedtobecomeaHarmonizedStandard,thereferenceofwhichwillbepublishedintheOfficialJournaloftheEuropeanCommunitiesreferencingtheDirective1999/5/EC[1]oftheEuropeanParliamentandoftheCouncilof9March1999onradioequipmentandtelecommunicationsterminalequipmentandthemutualrecognitionoftheirconformity("theR&TTEDirective").NationaltranspositiondatesDateofadoptionofthisEN:28April2000DateoflatestannouncementofthisEN(doa):31July2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31January2001DateofwithdrawalofanyconflictingNationalStandard(dow):31January2001IntroductionETSIhasdesignedamodularstructureforthestandards.Eachstandardisamoduleinthestructure.Themodularstructureisshowninfigure1.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)7NewstandardforHealthforradio(ifneeded)Useofspectrum*IfneededScopedbyequipmentclassortypeScopedbyfrequencyand/orequipmenttypeDisability*Privacy*Fraud*Noharmtothenetwork*Emergency*Inter-workingviathenetwork*Inter-workingwiththenetworkNon-radioRadio(RE)Non-TTETTE3.1b3.23.3c3.3b3.3a3.3d3.3e3.3fRadioProductEMCExistingEMCstandardstobereplacedbyanewsinglemulti-partstandardGenericandbasestandardsalsonotifiedunderEMCDirectiveStandardsalsonotifiedunderLVDDirective(inclacousticsafetyifneeded)3.1aNewradioharmonisedstandardsSpectrumEMCSafetyFigure1:ModularstructureforthevariousstandardsusedundertheR&TTEDirectiveThelefthandedgeofthefigureshowsthedifferentsubclausesofArticle3oftheDirective.Forarticle3.3varioushorizontalboxesareshown.TheirdottedlinesindicatethatnoessentialrequirementsintheseareashaveyetbeenadoptedbytheCommission.Ifsuchessentialrequirementsareadopted,theywillbeelaboratedinindividualstandardswhosescopeislikelytobespecifiedbyfunctionorinterfacetype.Theverticalboxesshowthestandardsunderarticle3.2fortheuseoftheradiospectrum.Thescopesofthesestandardsarespecifiedeitherbyfrequency(normallyinthecasewherefrequencybandsareharmonized)orbyradioequipmenttype.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)8Forarticle3.1(b),thediagramshowsthenewsinglemulti-partproductEMCstandardforradio,andtheexistingcollectionofgenericandbasestandardscurrentlyusedundertheEMCDirective.Thepartsofthisnewstandardwillbecomeavailableinthesecondhalfof2000,andtheexistingseparateEMCstandardswillbeuseduntilitisavailable.Forarticle3.1(a)thediagramshowstheexistingsafetystandardscurrentlyusedundertheLVDDirectiveandthepossibilityofanewstandardonhealthrelatingtoradioemissionsThebottomofthefigureshowstherelationshipofthestandardstoradioequipmentandtelecommunicationsterminalequipment.Aparticularequipmentmayberadioequipment,telecommunicationsterminalequipmentorboth.Themodularapproachhasbeentakenbecause:-itminimizesthenumberofstandardsneeded.Becauseequipmentmayhavemultipleinterfacesandfunctionsitisnotpracticabletoproduceasinglestandardforeachpossiblecombinationoffunctionsthatmayoccurinanequipment;-itprovidesscopeforstandardstobeadded:-underarticle3.2whennewfrequencybandsareagreed;or-underarticle3.3shouldtheCommissiontakethenecessarydecisions;withoutrequiringalterationofstandardsthatarealreadypublished.ThepresentdocumentisbasedonEN300721[6].Therequirementsofthepresentdocumenthavebeenselectedtoensureanadequatelevelofcompatibilitywithotherradioservices.Thepresentdocumentdoesnotcontainanyrequirement,recommendation,orinformationabouttheinstallationoftheMESs.Thedeterminationoftheparametersoftheuserearthstationsusingagivensatelliteconstellationfortheprotectionofthespectrumallocatedtothatsatelliteconstellation,isconsideredtobeundertheresponsibilityofthesatelliteoperatororthesatellitenetworkoperators.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)91ScopeThepresentdocumentappliestoMobileEarthStations(MES)providingLowBitRateDataCommunications(LBRDC)usingLowEarthOrbiting(LEO)satellitesandwhichhavethefollowingcharacteristics:-theMEScouldbeaBasedMES(BMES),aVehiclemountedMES(VMES),oraPortableMES(PMES);-theMESsoperatethroughsatellitesinLowEarthOrbit(LEO)aspartofanetworkprovidingLowBitRateDataCommunications(LBRDC);-theseradioequipmenttypesarecapableofoperatinginalloranypartofthefrequencybandsgivenintable1.Table1:FrequencyRangesMESTransmitfrequenciesandServiceallocations(MHz)MESReceivefrequenciesandServiceallocations(MHz)148to149,9MSS137to137,025MSS149,9to150,05LMSS137,025to137,175MSS235to322MSS137,175to137,825MSS335,4to399,9MSS137,825to138MSS399,9to400,05LMSS235to322MSS335,4to399,9MSS400,15to401MSSThepresentdocumentisintendedtocovertheprovisionsofArticle3.2,whichstatesthat"…radioequipmentshallbesoconstructedthatiteffectivelyusesthespectrumallocatedtoterrestrial/spaceradiocommunicationsandorbitalresourcessoastoavoidharmfulinterference."ofDirective1999/5/EC[1](R&TTEDirective).Inadditiontothepresentdocument,otherENsthatspecifytechnicalrequirementsinrespectofessentialrequirementsunderotherpartsofArticle3oftheR&TTEDirective[1]mayapplytoequipmentwithinthescopeofthepresentdocument.NOTE1:AlistofsuchENsisincludedontheETSIwebsite.NOTE2:TheMESsarecontrolledandmonitoredbyaNetworkControlFacility(NCF).TheNCFisoutsidethescopeofthepresentdocument.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]Directive1999/5/ECoftheEuropeanParliamentandoftheCouncilof9March1999onradioequipmentandtelecommunicationsequipmentandthemutualrecognitionoftheirconformity.[2]IECPublication68-2-1:"Environmentaltesting-Part2:Tests.TestsA:Cold".[3]IECPublication68-2-2:"Environmentaltesting-Part2:Tests.TestsB:Dryheat".SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)10[4]IECPublication68-2-36:"Environmentaltesting.Part2:Tests.TestFdb:Randomvibrationwideband-ReproducibilityMedium".[5]Directive98/34/ECoftheEuropeanParliamentandoftheCouncilof22June1998layingdownaprocedurefortheprovisionofinformationinthefieldoftechnicalstandardsandregulations.[6]EN300721:"SatelliteEarthStationsandSystems(SES);MobileEarthStations(MES)providingLowBitRateDataCommunications(LBRDC)usingLowEarthOrbiting(LEO)satellitesoperatingbelow1GHz".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thetermsanddefinitionsintheR&TTEDirective[1],andthefollowingtermsanddefinitionsapply:applicant:manufacturerorhisauthorizedrepresentativewithintheEuropeanCommunityorthepersonresponsibleforplacingtheapparatusonthemarket.BMES:MESintendedtobeinstalledinafixedlocation,andwhichispoweredeitherbyDCorACsupply.carrier-offstate:MESisinthisstatewhenitisnottransmittingasignal,i.e.notinthecarrier-onstate.carrier-onstate:MESisinthisstatewhenitistransmittingasignalinacontinuousornon-continuousmode.controlchannel:controlchannelmaybeeitheracommandtoaparticularMESorasignalfromthesatellitecontainingcontrolinformationtoappropriatelyenableordisabletransmissionsfromaMES.conductedmeasurement:measurementofemissionsfromanantennaportoftheMESmadebydirectwiredconnectiontotheport.environmentalprofile:rangeofenvironmentalconditionsunderwhichequipmentwithinthescopeofthepresentdocumentisrequiredtocomplywiththeprovisionsofthepresentdocument.EquivalentIsotropicallyRadiatedPower(EIRP):productoftransmitterpowerandantennagain,equivalenttoanisotropicsourceradiatinguniformlyinalldirections.host-connected:indicatesanMESforwhichconnectiontoorintegrationwithhostequipmentisnecessarytoofferfunctionality.hostequipment:isanyequipmentwhichhasacompleteuserfunctionalitywhennotconnectedtotheMES,andtowhichtheMESprovidesadditionalfunctionality,andtowhichconnectionisnecessaryfortheMEStoofferfunctionality.InstallableEquipment(IE),InternallyMountedEquipment(IME)AndExternallyMountedEquipment(EME):InstallableEquipment(IE)isanequipmentwhichisintendedtobeinstalledinavehicle.AnIEmayconsistofoneorseveralinterconnectedmodules.TheIEiscomposedofmodulesintendedtobeexternallymountedasdeclaredbytheapplicant,anddefinedasExternallyMountedEquipment(EME)andtheremainingmodules(s)asInternallyMountedEquipment(IME).LaboratoryTestEquipment(LTE):logicalgroupingthatcontainsthestandardtestequipment.MSSband:continuousrangeoffrequenciesallocatedbytheITUtotheMSS(MobileSatelliteService).narrow-bandsystem:narrow-bandsystemisoneinwhichthenominalcarrierfrequencyspacingforMESsintheEarth-to-spacedirectionislessthan300kHz.networkcontrolchannel:channelbywhichanMESreceivesgeneralcontrolinformationfromtheNCF.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)11NCFcontrolmessage:message,normallyoriginatingfromanetwork,toaspecifiedterminalorsetofterminalsofthenetworkwhichindicatestotheterminalorsetofterminalsthatit/theyshouldcarryoutsomespecificactionorshouldenterormaintainsomespecificstate.FortestpurposesNCFcontrolmessagesmayoriginatefromSpecialTestEquipment(STE).nominatedbandwidth:bandwidthoftheMESradiofrequencytransmissionisnominatedbytheapplicant.Thenominatedbandwidthiswideenoughtoencompassallspectralelementsofthetransmissionwhichhavealevelgreaterthanthespecifiedunwantedemissionslimits.Thenominatedbandwidthiswideenoughtotakeaccountofthetransmitcarrierfrequencystability.ThenominatedbandwidthiswithintheMSStransmitfrequencybandwithinwhichtheMESoperates.NOTE:ForFDMA/DCAAsystemstheNominatedBandwidthdoesnotexceed25kHz.PMES:MESintendedtobeportable,andwhichispoweredbyastandalonebattery,andgenerallyintendedtobeself-containedandfreestanding.APMESwouldnormallyconsistofasinglemodule,butmayconsistofseveralinterconnectedmodules.InsomecasesdifferentspecificationsapplytoPMESandthisisnotedintherelevanttextradiatedmeasurement:measurementofanactualradiatedfield.SpecialTestEquipment(STE):equipmentwhichpermitscontroloftheMESsothatthetestsrequiredbythepresentdocumentcanbeperformed.testload:testloadisasubstantiallynon-reactive,non-radiatingpowerattenuatorwhichiscapableofsafelydissipatingthepowerfromthetransmitter(s).unwantedemissions:unwantedemissionsarethosefallingoutsidethenominatedbandwidthinthecarrier-onstate,andthosegeneratedinthecarrier-offstate.VMES:MESintendedtobeinstalledonavehicle.wide-bandsystem:wide-bandsystemisoneinwhichthenominalcarrierfrequencyspacingforMESsintheEarth-to-spacedirectionisequaltoorgreaterthan300kHz.3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ACAlternatingCurrentASDAccelerationSpectralDensityBMESBaseMESCMFControlandMonitoringFunctionDCDirectCurrentDCAADynamicChannelActivityAssignmentDS-SSMADirectSequenceSpreadSpectrumMultipleAccessEIRPEquivalentIsotropicallyRadiatedPowerEMCElectro-MagneticCompatibilityEMEExternallyMountedEquipmentFDMAFrequencyDivisionMultipleAccessIEInstallableEquipmentIECInternationalElectrotechnicalCommission/CommitteeIMEInternallyMountedEquipmentLBRDCLowBitRateDataCommunicationsLMSSLandMobileSatelliteServiceLTELaboratoryTestEquipmentMESMobileEarthStationMICMESIdentificationCodeMSSMobileSatelliteServiceNCFNetworkControlFacilityPMESPortableMESppmpartspermillionR&TTERadioandTelecommunicationsTerminalEquipmentRASRadioAstronomyServiceSIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)12RFRadioFrequencySTESpecialTestEquipmentVMESVehicleMountedMES4Technicalrequirementsspecifications4.1Environmentalprofile4.1.1GeneralThetechnicalrequirementsofthepresentdocumentapplyundertheenvironmentalprofilespecifiedbelowforoperationoftheequipment.Theequipmentshallcomplywithallthetechnicalrequirementsofthepresentdocumentatalltimeswhenoperatingwithintheboundarylimitsofthespecifiedoperationalenvironmentalprofile.4.1.2TemperatureTheMESshallfulfilalltherequirementsinthefulltemperaturerangesof:-10°Cto+55°C;takenfromIECpublications68-2-1[2]and68-2-2[3].ForMESsexpectedtooperateinanenvironmentoutsidethistemperaturerangetheapplicantwilltakethenecessaryactionstoensureproperoperation.4.1.3VoltageTheapplicantshalldeclarethenominal,lowerandthehigherextremevoltages.TheMESshallfulfilalltherequirementsinthefullvoltagerangebetweentheextremevoltages.4.1.4VibrationTheMESshallfulfilalltherequirementswhenvibratedatthefrequency/amplitudesgivenintable2.Table2:VibrationcharacteristicsFrequencyrangeASD(AccelerationSpectralDensity)randomvibration5Hzto20Hz0,96m2/s3(+0/-5%)20Hzto500Hz0,96m2/s3(+0/-5%)at20Hz,thereafter-3dB/Octave(+0/-5%)(takenfromIECPublication68-2-36[4])4.2Conformancerequirements4.2.1Unwantedemissionoutsidethebands148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz4.2.1.1JustificationToprotectotherterrestrialservices,spaceradiocommunicationsservicesandtheradioastronomyservicesfromemissionscausedbyMESsoutsidethebands148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)134.2.1.2TechnicalrequirementsTheunwantedemissionsfromtheMESoutsidetheuplinkbands148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz,withinwhichtheMESisdesignedtooperate,shallnotexceedthelimitsshownintables3,4and5.Table3:UnwantedemissionsforFDMAMESsoutsidetheoperationalband148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHzFrequencyMaximumEIRPdensity(dBpW)Measurement(MHz)FDMABandwidth0,1to14854100kHz150,05to23554100kHz322to335,454100kHz400,05to100054100kHz1000to1559601MHz1559to1626,5501MHz1626,5to12750601MHzTable4:UnwantedemissionsforDS-SSMAMESsoutsidetheoperationalband148MHzto150,05MHzFrequencyMaximumEIRPdensity(dBpW)Measurement(MHz)DS-SSMAbandwidth0,1to14654100kHz146to147,570100kHz147,5to14870-105(seenote)100kHz150,05to151,1570100kHz151,15to100054100kHz1000to1559601MHz1559to1626,5501MHz1626,5to12750601MHzNOTE:LinearlyinterpolatedindBpWvs.Frequency.Table5:UnwantedemissionsforDS-SSMAMESsoutsidetheoperationalbands235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHzFrequency(MHz)MaximumEIRPdensity(dBpW)Measuringbandwidth0,1to3054100kHz30to23554100kHz322to335,454100kHz400,05to100054100kHz1000to1559601MHz1559to1626,5501MHz1626,5to12750601MHzIntables3,4and5,wheneverachangeoflimitbetweenadjacentfrequencybandsoccurs,thelowerofthetwolimitsshallapplyatthetransitionfrequency.Thetechnicalrequirementsapplyforthefullrangeofenvironmentalconditionscorrespondingtothetypeofequipmentasspecifiedinsubclause5.1.2(seesubclause5.2.2).4.2.1.3ConformancetestThistestshallbecarriedoutfortwoMESfrequenciesifavailable,theminimumandthemaximumMEStransmitfrequenciesforwhichtheMESisdesignedtooperate,asspecifiedbytheapplicant.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)14Theenvironmentaltestconditionsaregiveninsubclause5.1.2.Foreachtest,theMESshallbesettotransmit(carrier-onstate)ononeofthespecifiedtransmittingfrequenciestobetestedatitsmaximumpowerforthattransmitfrequency,bymeansoftheSTEorbyanothertestfacilityprovidedbytheapplicant.IfthereisahandoverfunctionintheMES(toallowchangeoffrequencychannelduringatransmission),thisfunctionshallbedisabled.ThetransmittedcarriershallbemodulatedbyapseudorandombitsequencegeneratedbytheMESorbytheSTE.ForaMESoperationalinshortburstmode,thissequencewillbeoflengthcompatiblewiththemaximumburstlengthduration.Otherwisethetransmittedcarriershallbemodulatedbyatestsignalatmaximumrateasspecifiedinsubclause5.2.4.2.3.Inthetestequipment,thespectrumanalysernoisefloorshallbeatleast6dBbelowtheappropriatelimitsgivenintables3,4and5.Themeasurementsareperformedwiththeradiatedorwiththeconductedmethodaccordingtothecasesdefinedinsubclause5.2.4.4.Formeasurementsofradiatedunwantedemissions,subclause5.2.6applies.Formeasurementsofconductedunwantedemissions,subclause5.2.7applies.4.2.1.4TestConditionThespectrumanalyzershallbesetinsweepmodeandshallbeoperatedunderthefollowingconditions:frequencysweep:asrequiredforfrequencyrangetobeassessed;resolutionbandwidth:measurementbandwidthspecifiedintables3,4and5;displaybandwidth:equaltothemeasurementbandwidth;averaging:yes;peakhold:no.Themeasurementtimeshallbesuchthatthedifferenceofthemeasuredlevels,averagedoversubsequentmeasurementsamples,islessthan1dB,orameasurementtimeof100msmaybeusedifthemeasuredvaluescomplywiththeapplicablelimits.ForaMESoperatinginanon-continuouscarriermode,themeasurementshallbeperformedovertheactivepartofthetransmittedbursts.Thetotalsampletimeusedformeasurementshallbenotlessthan40%ofthedurationoftheactivepartofthetransmittedburst.Themeasurementshallbemadeovertherandompartoftheburst,excludinganypreamblesorsynchronizationsequences.ThesemeasurementsmaybeperformedwiththeMESoperatingincontinuousmodeiftheMESiscapableofsuchoperation.4.2.1.5TestrequirementsFormeasurementsofradiatedunwantedemissionsoftheMES,themeasuredvaluesshallnotexceedthelimitsgivenintables3,4and5,asapplicable.FormeasurementsofconductedunwantedemissionsoftheMES,themeasuredvaluesplusthedeclaredmaximumantennagain(orthedeclaredantennagainatthefrequencyofthemeasuredspuriousemission-inaccordancewithsubclause5.2.2)shallinnocaseexceedthelimitsgivenintables3,4and5.Verification:BymeasurementofunwantedemissionsgeneratedbyanoperatingMES.AllRFtestsinthissubclauseshallbecarriedoutatenvironmentalconditionsasspecifiedinsubclause5.1.2.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)15Alltestsinthecarrier-onstateshallbeundertakenwiththetransmitteroperatingatfullpowerandwiththemaximumtransmitburstratewhereapplicable.Toenabletheperformanceteststobecarriedout,theuseofSpecialTestEquipment(STE),suppliedbytheapplicant,maybenecessary.SincethisSTEwillbespecificfortheparticularsystem,itisnotpossibletoprovidedetailedspecificationsinthepresentdocument.However,thefollowingbaselineisprovided:-iftheMESrequirestoreceiveamodulatedcarrierfromthesatelliteinordertotransmit,thenspecialtestarrangementsarerequiredtosimulatethesatellitesignal,thusenablingtheMEStotransmitallowingmeasurementoftransmissionparameters;-anyspecificationofthesespecialtestarrangementswhichmayhavedirectorindirecteffectsonanyrequirementorrecommendationofthepresentdocumentshallbeclearlystatedbytheapplicant.4.2.2Unwantedemissionwithinthebands148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz4.2.2.1JustificationToprotectotherterrestrialandspaceradiocommunicationsservicesoperatingintheabovefrequencybands.4.2.2.2TechnicalrequirementsForeachtransmitband148MHzto150,05MHz,235MHzto322MHz,335,4MHzto399,9MHzand399,9MHzto400,05MHz,withinwhichtheMESisdesignedtooperate,theunwantedemissionsEIRPinany4kHzbandwithinthattransmitbandandoutsidethenominatedbandwidthshallinthecarrier-onstatenotexceedthelimitsgivenintable6.Table6:UnwantedemissionsEIRPwithintheoperationalbandsbutoutsidethenominatedbandwidthOffsetfromtheedgeofthenominatedbandwidthMaximumEIRPdensity(dBpW/4kHz)DS-SSMAFDMA0to50%ofthenominatedbandwidth90-56(note)7050%to250%ofthenominatedbandwidth5665>250%ofthenominatedbandwidthupto5MHz5665ifapplicable,totheedgeoftheoperationalband5665NOTE:LinearlyinterpolatedindBpWvs.Frequency.Thetechnicalrequirementsapplyforthefullrangeofenvironmentalconditionscorrespondingtothetypeofequipmentasspecifiedinsubclause5.1.2(seesubclause5.2.2).4.2.2.3ConformancetestThistestshallbecarriedoutfortwoMESfrequencies,ifavailable,theminimumandthemaximumtransmitfrequencyforwhichtheMESisdesignedtooperate,asspecifiedbytheapplicant.Twoadditionaltransmitfrequenciesshallbetestedifavailable.Thesefrequenciesshallbeequallyspacedbetweenthelowestandhighesttransmitfrequencies.Thetransmitfrequenciesusedforthetestshallbeenteredinthetestreport.Theenvironmentaltestconditionsaregiveninsubclause5.1.2.Foreachtest,theMESshallbesettotransmit(carrier-onstate)ononeofthespecifiedtransmitfrequenciestobetested,atitsmaximumpowerforthattransmitfrequency,bymeansoftheSTEorbyanothertestfacilityprovidedbytheapplicant.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)16IfthereisahandoverfunctionintheMES(toallowchangeoffrequencychannelduringatransmission),thisfunctionshallbedisabled.Thetransmittedcarriershallbemodulatedbyatestsignalatmaximumrateasspecifiedinsubclause5.2.4.2.3.Inthetestequipment,thespectrumanalyzernoisefloorshallbeatleast6dBbelowtheappropriatelimitsgivenintable6asapplicable.Themeasurementsareperformedwiththeradiatedorwiththeconductedmethodaccordingtothecasesdefinedinsubclause5.2.4.4.Formeasurementsofradiatedunwantedemissions,subclause5.2.6applies.Formeasurementsofconductedunwantedemissions,subclause5.2.7applies.4.2.2.4TestconditionThespectrumanalyzershallbesetinsweepmodeandshallbeoperatedunderthefollowingconditions:frequencysweep:asrequiredforfrequencyrangetobeassessed;resolutionbandwidth:measurementbandwidthspecifiedinsubclause4.2.2.2;displaybandwidth:equaltothemeasurementbandwidth;averaging:yes;peakhold:no.Themeasurementtimeshallbesuchthatthedifferenceofthemeasuredlevels,averagedoversubsequentmeasurementsamples,islessthan1dB,orameasurementtimeof100msmaybeusedifthemeasuredvaluescomplywiththeapplicablelimits.ForaMESoperatinginanon-continuouscarriermode,themeasurementshallbeperformedovertheactivepartofthetransmittedbursts.Thetotalsampletimeusedformeasurementshallbenotlessthan40%ofthedurationoftheactivepartofthetransmittedburst.Themeasurementshallbemadeovertherandompartoftheburst,excludinganypreamblesorsynchronizationsequences.4.2.2.5TestrequirementsFormeasurementsofradiatedunwantedemissionsoftheMES,themeasuredvaluesshallinnocaseexceedthelimitsgivenintable6asapplicable.Formeasurementsofconductedunwantedemissions,themeasuredvaluesplusthemaximumantennagain,shallinnocaseexceedthelimitsgivenintable6asapplicable.4.2.3EIRPdensitywithintheoperationalband4.2.3.1JustificationToprotectotherserviceswhichusethesamefrequencyband.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)174.2.3.2TechnicalrequirementsTheEIRPdensityinany4kHzbandradiatedfromtheMESshallnotexceedthelimitsintable7.Table7:EIRPLimitsDS-SSMAFDMA106dBpW130dBpWTheserequirementsapplytoalltypesofMES,foreverytransmitchanneloftheMESinitsoperationalband.Thetechnicalrequirementsapplyforthefullrangeofenvironmentalconditionscorrespondingtothetypeofequipmentasdescribedinsubclause5.1.2(seesubclause5.2.2).4.2.3.3ConformancetestIfavailableminimumtwoMEStransmitfrequenciesshallbeusedforthistest.ThesefrequenciesshallbetheminimumandthemaximumfrequenciesofthebandforwhichtheMESisdesignedtooperate,asspecifiedbytheapplicant.Whereavailable,theEIRPdensityshallalsobetestedattwoadditionaltransmitfrequencies.Thesefrequenciesshallbeequallyspacedbetweentheminimumandmaximumfrequencies.ThemeasuredEIRPdensitiesandthecorrespondingtransmitfrequenciesusedforthetestshallbeenteredinthetestreport.Theenvironmentaltestconditionsaregiveninsubclause5.1.2.Foreachtest,theMESshallbesettotransmit(carrier-onstate)atitsmaximumpower-onthespecifiedtransmittingfrequencytobetested,bymeansoftheSTEorbyanothertestfacilityprovidedbytheapplicant.IfthereisahandoverfunctionintheMES(toallowchangeoffrequencychannelduringatransmission),thisfunctionshallbedisabled.Thetransmittedcarriershallbemodulatedbyatestsignalatmaximumrateasspecifiedinsubclause5.2.4.2.3.Inthetestequipment,thespectrumanalyzernoisefloorshallbeatleast6dBbelowtheappropriatevaluestobemeasured.Themeasurementsareperformedwiththeconductedorwiththeradiatedmethodaccordingtothecasesdefinedinsubclause5.2.4.4.ForradiatedmeasurementsoftransmittedEIRPdensity,subclause5.2.6applies.ForassessmentoftransmittedEIRPdensitybyconductedmeasurements,subclause5.2.7applies.4.2.3.4TestconditionThespectrumanalyzershallbesetinsweepmodeandshallbeoperatedunderthefollowingconditions:frequencysweep:fromthelowertotheupperlimitsofthenominatedbandwidthofthetransmitchannelundertest;resolutionbandwidth:measurementbandwidthspecifiedinsubclause4.2.3.2displaybandwidth:equaltothemeasurementbandwidth;averaging:yes;peakhold:no.Themeasurementtimeshallbesuchthatthedifferenceofthemeasuredlevels,averagedoversubsequentmeasurementsamples,islessthan1dB,orameasurementtimeof100msmaybeusedifthemeasuredvaluescomplywiththeapplicablelimits.ThesemeasurementsmaybeperformedwiththeMESoperatingincontinuosmodeiftheMESiscapableofsuchoperation.Alternatively,apowermetermaybeusedwithacorrectionfactortoaccountforthedutycycle.SIST EN 301 721:2001
ETSIETSIEN301721V1.1.1(2000-05)184.2.3.5TestrequirementsFormeasurementsofradiatedEIRP,themeasuredvaluesshallnotexceedtheappropriatevaluesgiveninsubclause4.2.3.2,foreachspecificfrequencysub-bandandoperatingconditionforwhichthelimitapplies,asspecifiedbytheapplicant.ForassessmentofEIRPbyconductedmeasurement,themeasuredvaluesplusthemaximumantennagain,shallnotexceedtheappropriatevaluesgiveninsubclause4.2.3.2,foreachspecificfrequencybandandoperatingconditionforwhichthelimitapplies,asspecifiedbytheapplicant.4.2.4Unwantedemissionsincarrier-offstate4.2.4.1JustificationToprotectotherradioservicesandsystemsfromunwantedemissionscausedbyMESsinthecarrier-offstate.4.2.4.2TechnicalrequirementsThemaximumEIRPoftheunwantedemissionsfromtheMESsinthecarrier-offstateshallnotexceed33dBpWinany100kHz.Thetechnicalrequirementsapplyforthefullrangeofenvironmentalconditionscorrespondingtothetypeofequipmentasspecifiedinsubclause5.1.2(seesubclause5.2.2).4.2.4.3ConformancetestTheMESshallbeinthepower-onstateandsetinanon-transmitting(carrier-offstate)mode.Ifthereisaperiodicautomatictransmissionofbursts(e.g.forlocationupdating),theSTEshallprovideameanstoinhibitit,ortotriggerthemeasurementinordertoanalyseonlythenon-transmittingperiods.Theenvironmentaltestconditionsaregiveninsubclause5.1.2.Inthetestequip
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