1、INTERNATIONAL IEC STANDARD 610979 Firstedition 199712 Globalmaritimedistressandsafety system(GMDSS) Part9: Shipbornetransmittersandreceiversforusein theMFandHFbandssuitablefortelephony, digitalselectivecalling(DSC)andnarrowband directprinting(NBDP)Operationaland performancerequirements,methodsoftest
2、ing andrequiredtestresults Systmemondialdedtresseetdescurit enmer(SMDSM) Partie9: Emetteursetrcepteursdeborddenaviresutilisablesdansles bandesdcamtriquesethectomtriquespourlatlphonie, lappelslectifnumrique(ASN)etlimpressiondirectebande troite(IDBE)Exigencesdexploitationetdefonctionnement, mthodesdes
3、saietrsultatsdessaiexigs Referencenumber IEC610979:1997(E)Numrosdespublications Depuisle1erjanvier1997,lespublicationsdelaCEI sontnumrotespartirde60000. Publicationsconsolides Lesversionsconsolidesdecertainespublicationsde laCEIincorporantlesamendementssontdisponibles. Parexemple,lesnumrosddition1.0
4、,1.1et1.2 indiquentrespectivementlapublicationdebase,la publicationdebaseincorporantlamendement1,etla publicationdebaseincorporantlesamendements1 et2. Validitdelaprsentepublication LecontenutechniquedespublicationsdelaCEIest constammentrevuparlaCEIafinquilreflteltat actueldelatechnique. Desrenseigne
5、mentsrelatifsladatede reconfirmationdelapublicationsontdisponiblesdans leCataloguedelaCEI. Lesrenseignementsrelatifscesrvisions,ltablis sementdesditionsrvisesetauxamendements peuventtreobtenusauprsdesComitsnationauxde laCEIetdanslesdocumentscidessous: BulletindelaCEI AnnuairedelaCEI Accsenligne* Cat
6、aloguedespublicationsdelaCEI Publiannuellementetmisjourrgulirement (Accsenligne)* Terminologie,symbolesgraphiques etlittraux Encequiconcernelaterminologiegnrale,lelecteur sereporteralaCEI60050: VocabulaireElectro techniqueInternational (VEI). Pourlessymbolesgraphiques,lessymboleslittraux etlessignes
7、dusagegnralapprouvsparlaCEI,le lecteurconsulteralaCEI60027: Symboleslittraux utiliserenlectrotechnique,laCEI60417:Symboles graphiquesutilisablessurlematriel.Index,relevet compilationdesfeuillesindividuelles, etlaCEI60617: Symbolesgraphiquespourschmas. PublicationsdelaCEItabliespar lemmecomitdtudes L
8、attentiondulecteurestattiresurleslistesfigurant lafindecettepublication,quinumrentles publicationsdelaCEIprparesparlecomit dtudesquiatablilaprsentepublication. * Voiradressesitewebsurlapagedetitre. Numbering Asfromthe1stJanuary1997allIECpublicationsare issuedwithadesignationinthe60000series. Consoli
9、datedpublications ConsolidatedversionsofsomeIECpublications includingamendmentsareavailable.Forexample, editionnumbers1.0,1.1and1.2refer,respectively,to thebasepublication,thebasepublication incorporatingamendment1andthebasepublication incorporatingamendments1and2. Validityofthispublication Thetechn
10、icalcontentofIECpublicationsiskeptunder constantreviewbytheIEC,thusensuringthatthe contentreflectscurrenttechnology. Informationrelatingtothedateofthereconfirmationof thepublicationisavailableintheIECcatalogue. Informationontherevisionwork,theissueofrevised editionsandamendmentsmaybeobtainedfrom IEC
11、 NationalCommitteesandfromthefollowing IECsources: IECBulletin IECYearbook Onlineaccess* CatalogueofIECpublications Publishedyearlywithregularupdates (Onlineaccess)* Terminology,graphicalandletter symbols Forgeneralterminology,readersarereferredto IEC60050:InternationalElectrotechnicalVocabulary (IE
12、V). Forgraphicalsymbols,andlettersymbolsandsigns approvedbytheIECforgeneraluse,readersare referredtopublicationsIEC60027: Lettersymbolsto beusedinelectricaltechnology ,IEC60417: Graphical symbolsforuseonequipment.Index,surveyand compilationofthesinglesheets andIEC60617: Graphicalsymbolsfordiagrams.
13、IECpublicationspreparedbythesame technicalcommittee Theattentionofreadersisdrawntotheendpagesof thispublicationwhichlisttheIECpublicationsissued bythetechnicalcommitteewhichhaspreparedthe presentpublication. * Seewebsiteaddressontitlepage.INTERNATIONAL IEC STANDARD 610979 Firstedition 199712 Globalm
14、aritimedistressandsafety system(GMDSS) Part9: Shipbornetransmittersandreceiversforusein theMFandHFbandssuitablefortelephony, digitalselectivecalling(DSC)andnarrowband directprinting(NBDP)Operationaland performancerequirements,methodsoftesting andrequiredtestresults Systmemondialdedtresseetdescurit e
15、nmer(SMDSM) Partie9: Emetteursetrcepteursdeborddenaviresutilisablesdansles bandesdcamtriquesethectomtriquespourlatlphonie, lappelslectifnumrique(ASN)etlimpressiondirectebande troite(IDBE)Exigencesdexploitationetdefonctionnement, mthodesdessaietrsultatsdessaiexigs CommissionElectrotechniqueInternatio
16、nale InternationalElectrotechnicalCommission Forprice,seecurrentcatalogue IEC1997Copyrightallrightsreserved Nopartofthispublicationmaybereproducedorut ilizedinanyformorbyanym eans,electronicormechanical,including photocopyingandmicrofilm,withoutpermissioninwritingfromthepublisher. InternationalElect
17、rotechnicalCommission 3,ruedeVarembGeneva,Switzerland Telefax:+41229190300 email:inmailiec.ch IECwebsitehttp:/www.iec.ch PRICECODE U2 610979IEC:1997(E) CONTENTS Page FOREWORD. 5 Clause 1 Scope . 6 2 Normativereferences 7 3 Performancerequirements 8 3.1 Introduction . 8 3.2 Powersupplies 9 3.3 Contro
18、l 9 3.4 Interfaces 9 3.5 Frequencyindication 9 3.6 Distresscontrols 9 3.7 Controlpanelpriority . 10 3.8 Labels . 10 3.9 Safetyprecautions. 11 3.10 Classesofemission 11 3.11 Frequencybands. 11 3.12 Warmingupperiod 11 4 Transmitter . 11 4.1 Frequenciesandclassesofemission. 11 4.2 Frequencyaccuracyands
19、tability . 12 4.3 Outputpower. 12 4.4 Transmitterinput . 13 4.5 Permissiblewarmingupperiod 13 4.6 Continuousoperation. 13 4.7 Controlsandindicators 13 4.8 Safetyprecautions. 14 4.9 Powersupply. 14 4.10 Synthesizerlock 14 4.11 Channelswitching . 14 4.12 NBDPtransmitandreceivetiming 14 5 Receiver . 14
20、 5.1 Frequenciesandclassesofemission. 14 5.2 Frequencystabilityandaccuracy . 15 5.3 Usablesensitivity. 15 5.4 Receiveroutput . 15 5.5 Permissiblewarmingupperiod 15 5.6 Immunitytointerference 15 5.7 Controls 15610979IEC:1997(E) 3 Clause Page 5.8 Powersupply. 16 5.9 Antennastaticprotection . 16 5.10 L
21、oudspeakerswitching 16 5.11 Noisereducer 16 5.12 Audiogaincontrolandautomaticgaincontrol(AGC) 16 5.13 NBDPtransmitandreceivetiming 16 6 Radiotelephonealarmsignalgenerator 16 6.1 Introduction . 16 6.2 General. 16 6.3 Frequencyanddurationoftones 17 6.4 Modulation 17 6.5 Controls 17 6.6 Durationofalarm
22、signal. 17 6.7 Alarmsignalrepeat . 17 6.8 Activationoftheradiotelephonetransmitter 17 6.9 Auralmonitoring 17 7 Methodsoftestingandrequiredtestresults 17 7.1 Testconditions 18 7.2 Performancecheck 18 7.3 Environmentaltests. 19 7.4 Electromagneticcompatibility(EMC) 19 7.5 Immunity . 19 7.6 Acousticnoi
23、se. 19 7.7 Compasssafedistance . 20 7.8 Safetyprecautions. 20 7.9 Generalconditionsofmeasurement. 20 8 Transmitter . 22 8.1 General. 22 8.2 Frequencyerror. 22 8.3 Outputpowerandintermodulationproducts . 23 8.4 Unwantedfrequencymodulation 24 8.5 Sensitivityofthemicrophone . 25 8.6 Sensitivityofthe600
24、 W lineinputforSSBtelephony 25 8.7 Automaticlevelcontroland/orlimiterforSSBtelephony. 26 8.8 AudiofrequencyresponseusingSSBtelephony. 26 8.9 PowerofoutofbandemissionsusingSSBtelephony 27 8.10 PowerofconductedspuriousemissionsofSSBtelephony . 28 8.11 Residualhumandnoisepowerusingtelephony . 28 8.12 R
25、esidualfrequencymodulationonDSCandNBDP 29 8.13 Carriersuppression . 29 8.14 Continuousoperation. 30 8.15 Protectionofthetransmitter. 30 8.16 ResidualRFnoisepower. 31 8.17 SwitchingtimeforNBDP 314 610979IEC:1997(E) Clause Page 9 Receiver . 32 9.1 Audiofrequencyoutputlevels 32 9.2 Frequencyerror. 32 9
26、.3 Unwantedfrequencymodulation 33 9.4 Audiofrequencypassband 34 9.5 Maximumusablesensitivity . 35 9.6 Harmoniccontentinoutput 36 9.7 Adjacentchannelselectivity. 36 9.8 Blocking 38 9.9 Crossmodulation 39 9.10 Intermodulation . 39 9.11 Spuriousresponserejectionratio. 40 9.12 Audiofrequencyintermodulat
27、ion 42 9.13 Conductedspuriousemissionsintotheantenna. 43 9.14 Internallygeneratedspurioussignals . 43 9.15 ImprovementinsignaltonoiseratiowithAGC. 43 9.16 AGCrange 44 9.17 AGCtimeconstants(attackandrecoverytime) 44 9.18 SwitchingtimeforNBDP 45 9.19 Reciprocalmixing 45 9.20 Protectionofinputcircuits
28、. 46 Figures 1Limitsforunwantedemission(MF/HFtransmitter) 47 2Limitsforautomaticlevelcontrol 48 3Limitsforaudiofrequencyresponse. 49 Annexes ARelationshipbetweenbiterrorrate(BER)inputandsymbolerrorrate(SER)output . 50 BBibliography 5 4 CDelaysinequipmentanditseffectonnarrowbanddirectprintingcommunic
29、ation intheGMDSSusingtheprotocolinRecommendationITURM.625. 55610979IEC:1997(E) 5 INTERNATIONALELECTROTECHNICALCOMMISSION _ GLOBALMARITIMEDISTRESSANDSAFETYSYSTEM(GMDSS) Part9:ShipbornetransmittersandreceiversforuseintheMFandHF bandssuitablefortelephony,digitalselectivecalling(DSC)and narrowbanddirect
30、printing(NBDP) Operationalandperformancerequirements, methodsoftestingandrequiredtestresults FOREWORD 1) TheIEC(InternationalElectrotechnicalCommission)isaworldwideorganizationforstandardizationcomprising allnationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectoftheIECistopromote inter
31、nationalcooperationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.To thisendandinadditiontootheractivities,theIECpublishesInternationalStandards.Theirpreparationis entrustedtotechnicalcommittees;anyIECNationalCommitteeinterestedinthesubjectdealtwithmay participateinthispre
32、paratorywork.International,governmentalandnongovernmentalorganizationsliaising withtheIECalsoparticipateinthispreparation.TheIECcollaboratescloselywiththeInternationalOrganization forStandardization(ISO)inaccordancewithconditionsdeterminedbyagreementbetweenthetwo organizations. 2) Theformaldecisions
33、oragreementsoftheIEContechnicalmattersexpress,asnearlyaspossible,an internationalconsensusofopinionontherelevantsubjectssinceeachtechnicalcommitteehasrepresentation fromallinterestedNationalCommittees. 3) Thedocumentsproducedhavetheformofrecommendationsforinternationaluseandarepublishedintheform ofs
34、tandards,technicalreportsorguidesandtheyareacceptedbytheNationalCommitteesinthatsense. 4) Inordertopromoteinternationalunification,IECNationalCommitteesundertaketoapplyIECInternational Standardstransparentlytothemaximumextentpossibleintheirnationalandregionalstandards.Any divergencebetweentheIECStan
35、dardandthecorrespondingnationalorregionalstandardshallbeclearly indicatedinthelatter. 5) TheIECprovidesnomarkingproceduretoindicateitsapprovalandcannotberenderedresponsibleforany equipmentdeclaredtobeinconformitywithoneofitsstandards. 6) AttentionisdrawntothepossibilitythatsomeoftheelementsofthisInt
36、ernationalStandardmaybethesubject ofpatentrights.TheIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardIEC610979hasbeenpreparedbyIECtechnicalcommittee80: Maritimenavigationandradiocommunicationequipmentandsystems. Thetextofthisstandardisbasedonthefollowingdocume
37、nts: FDIS Reportonvoting 80/147/FDIS 80/164/RVD Fullinformationonthevotingfortheapprovalofthisstandardcanbefoundinthereporton votingindicatedintheabovetable. AnnexesA,BandCareforinformationonly. Thebilingualversionofthisstandardwillbeissuedlater.6 610979IEC:1997(E) GLOBALMARITIMEDISTRESSANDSAFETYSYS
38、TEM(GMDSS) Part9:ShipbornetransmittersandreceiversforuseintheMFandHF bandssuitablefortelephony,digitalselectivecalling(DSC)and narrowbanddirectprinting(NBDP) Operationalandperformancerequirements, methodsoftestingandrequiredtestresults 1Scope ThispartofIEC61097specifiestheminimumoperationalandperfor
39、mancerequirementsand methodsoftestingwithrequiredtestresultsfortransmittersandreceiverscapableofvoice communication,digitalselectivecallingandnarrowbanddirectprintingtelegraphyforthe GMDSSoperatingineitherthemediumfrequencybandonlyorinmediumandhighfrequency bandsallocatedintheITURadioRegulationstoth
40、eMaritimeMobileService,asrequiredby ChapterIVofSOLAS1974asamendedin1988andwhichisassociatedwithIEC60945. WhenarequirementinthisstandardisdifferentfromIEC60945,therequirementofthis standardshalltakeprecedence. Thisstandardreferstoequipmentfor: singlesideband(SSB)transmissionandreceptionforradioteleph
41、ony; frequencyshiftkeyingorsinglesidebandtransmissionandreceptionfordigitalselective callingsignals(DSC)accordingtoRecommendationITURM.4937;and frequencyshiftkeyingorsinglesidebandtransmissionandreceptionfornarrowbanddirect printingtelegraphy(NBDP)accordingtoRecommendationITURM.6253; asapplicable. T
42、hisstandardreferstoradioequipment,whichisnotintegratedwithDSCencodersor decoders,orNBDPmodems,butdefinestheinterfaceswith,andtheRFcharacteristicsof, suchequipment. NOTETherequirementsforintegratedDSCencodersordecodersmaybefoundinIEC610973andfor integratedNBDPmodemsinthefutureIEC6109711. Theserequire
43、mentsincludetherelevantprovisionsoftheRadioRegulationsandoftheIMO ResolutionsA.334(IX),A.421(XI),A.694(17),A.804(19),andA.806(19)andSOLAS. NOTETherequirementfortwotonegenerators(A.421(XI)isonlyapplicableuntil1February1999. Iftheequipment,orpartsofit,isdesignedinsuchamannerthatitcanbeusedforother categoriesofmaritimeradiocommunicationservices(e.g.radiodataorfacsimiletransmission), thosepartsoftheequipmentshallfulfiltherelevantrequirementsoftheappropriatestandards forthe
