GIS98AAntennaComponentMechanicalRequirementsSpecificationV117OCT05.docx
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GIS98AAntennaComponentMechanicalRequirementsSpecificationV117OCT05.docx
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GIS98AAntennaComponentMechanicalRequirementsSpecificationV117OCT05
GIS-98AAntennaComponentMechanicalRequirementsSpecification
DocumentOwnerInfo
Thisspecificationisownedby:
DougMartin
GMGlobalElectricalCenter
586-492-7284
doug.1.martin@
RevisionLog
Revision#
ROIN
Change
Author
Date
Created
D.Martin
23Sep05
1.1
All
FinalReleaseforRFQ
D.Martin
7Oct05
TableofContents
GIS-98AAntennaComponentMechanicalRequirementsSpecification1
DocumentOwnerInfo1
RevisionLog1
TableofContents1
ApplicableDocuments2
GIS-98A-100DocumentScope3
GIS-98A-101DocumentPriority3
GIS-98A-102DocumentDescription3
GIS-98A-103AntennaTypesDescribed3
GIS-98A-200AntennaAppearance3
GIS-98A-202WindNoisePerformance3
GIS-98A-203AntennaAppearance-PaintedColor4
GIS-98A-209AntennaAppearance-Black(Unpainted)4
GIS-98A-300DimensionsandCapabilities5
GIS-98A-301DimensionsofConnectors5
GIS-98A-302DimensionsofCoaxialLead-inCables5
GIS-98A-303DimensionsRelativetoAntennaAssemblyAttachment5
GIS-98A-304DimensionsofAntennaAssembly6
GIS-98A-305ComponentMass6
GIS-98A-400Mechanical6
GIS-98A-401ElectricalGrounding6
GIS-98A-402LocationofAntennaModuleforHiddenAntennas6
GIS-98A-403LocationofAntennaBaseforExteriorAntennas7
GIS-98A-404MechanicalMounting7
GIS-98A-405AntennaBaseMountingIntegrityforExteriorAntennas7
GIS-98A-406AntennaMastAttachmentandProperties7
GIS-98A-411DustandMoistureIntrusion8
GIS-98A-412Squeak/Rattle8
GIS-98A-500LabelRequirements8
GIS-98A-501Packaging8
GIS-98A-502PartNumberIdentification9
GIS-98A-503Trace-abilityCode9
GIS-98A-600Material9
Corrosion9
GalvanicCorrosion9
MarkingofRecyclableMaterials9
RequirementsforPlasticComponents9
RestrictedMaterials9
GIS-98A-700ManufacturingRequirements10
GIS-98A-701DesignGuidelines10
GIS-98A-800VehicleLevelEnvironmentalRequirements12
GIS-98A-801CarWash12
GIS-98A-802PowerWash12
GIS-98A-803UniversalWaterBooth12
ApplicableDocuments
Thefollowingdocumentsshallbeusedasdirectedinthisdocument.
▪GIS-96ARoofAntennaHoleInterfaceRequirementsSpecification
▪GM7451M
▪GM1737
▪GM1738
▪GM3172
▪GM9540P
▪SAEJ1344
▪GM502M
▪GM7400M
▪GMW3059M
▪GM9600P
▪GMUTSR2-15-33
▪GMN9736TP
GIS-98A-100DocumentScope
GIS-98A-101DocumentPriority
Thisdocumentshallbetheprimaryrequirementsfortheantennatypedescribedhere.TheserequirementsshallnotbeamendedwithoutapprovaloftheAntennaandReceptionsubSSLT.Inthiscase,aseparatedocumentshallbecreateddescribingtheapprovedchanges.
GIS-98A-102DocumentDescription
Thephysicalmountingrequirementsandotherrelatedrequirementsforexteriorandinteriormountedantennasandmodulesaredescribedinthisdocument.
GIS-98A-103AntennaTypesDescribed
Thisdocumentcontainsmountingrequirementsforthefollowingfamiliesofvehicleantennas:
1.Roofmountedantennas
a.Onepiece:
blackplasticcoverorradome
b.Onepiece:
paintedplasticcoverorradome
c.Twopiece:
blackplasticcoverorradomewithshortplasticantenna
d.Twopiece:
blackplasticcoverorradomewithflexiblemast
2.Interiormountedantennamodules
a.Modulesthatconnecttoantennaelement(s)locatedontheinsideglasslayer
i.AM/non-FMdiversitysingleelementsystem
ii.AM/FMdiversitymultipleelementsystemwithoptionalFMbufferamplifier
iii.DABsystem
iv.TVmultipleelementsystemwithmultipleamplifiers
b.Self-containedinteriormountedantennas
i.CellphoneandGPS“brick”antenna(TBD)
ii.Bluetooth(TBD)
GIS-98A-200AntennaAppearance
Therequiredphysicalcharacteristicsofthecomponentsoftheantennasystemaredetailedinthefollowingsections.
GIS-98A-202WindNoisePerformance
Theantennashallmeetvehiclelevelwindnoiserequirementswhenmountedintheproductionintentlocation.Featuresthatinhibitthegenerationofwindnoiseshallbeincorporatedintotheantenna.Forantennaswithamastfeature,themastshallbedesignedinsuchamannerastopreventanyaudibleresonance.Theremainingexteriorportionoftheantennashallbedesignedinsuchamannerastominimizewindrush.Thiscanbeachievedbyminimizingtheheightofanyverticalornearlyverticalsectionsoftheantenna’sexteriorsurface(non-mastfeatures)andbyeliminatingallsharpcornersfromtheexteriorshelldesign.
Wheninstalledonthevehicleintheproduction-intentlocation,thepresenceoftheantennashallnotproducemorethana4dB(SPL)peakabovethebackgroundspectranoragreaterthana0.3dBincrementforbroadbandrush.ReferencetheGMNVICWindNoiseDesignGuideforfurtherdetailsonthisrequirement.
GIS-98A-203AntennaAppearance-PaintedColor
GIS-98A-204Finish
Forthisoptionalappearancefeature,thehardplasticshellorradomeoftheexteriorantennashallbepainted.Therearetwopaintcolorselectionstrategiesdependingontheapplication.Unlessspecificallystated,thefirststrategyshallapply.
▪Thepaintedcolorshallbethebodycolorsofthevehiclethattheantennawillbeinstalledon.
▪Specificcolors,definedbyGM,shallbeusedforspecialtrimpackagesorotherpurposes.
Init’sinstalledposition,asdefinedbyGM7451M(section3.9),anyexposedsurfaceoftheantennaassemblyshallhaveapaintedfinish,withnoexposedfasteners,holes,sharpedges,burrs,flash,splayorsinkmarksontheexposedoutersurfaces.GMNAEngineeringmustapprovethelocationofgates,partinglines,andknockoutpins.
GIS-98A-205Color
TheexposedportionsoftheantennasystemcomponentsshallbepaintedfromacolormatrixtobedefinedbyGeneralMotors.
ThehardplasticpartsoftheSharkfintypeofantennashallbepainted.
AntennabaseswithremovalmastsshallNOTbepainted.
FlexiblepartssuchastheAM/FMantennamast,shallNOTbepaintedorcoloredandshallbeblack.
ThecoloredpaintshallONLYbeappliedbyaGMapprovedpaintshop.
Theinitialassumptionforthecolormatrixshallbe8colorspervehicleandnameplateperyear.Eachyear,3colorswillbereplaced.
GIS-98A-207Grain
Thepaintedantennabaseradomeshallhaveasmoothfinish.
GIS-98A-208Shape
Theexposedportionoftheantennasystemshallhaveanaestheticallypleasingappearance,andshallbejointlydevelopedbyGMDesignStaffandthesupplier.Mock-upsofvariousdesignconsiderationswillbereviewedduringtheinitialproductdevelopmentstages,withtheintentofprovidingfinaldesigndetailspriortotheBetaphaseoftheassociatedvehicleprogram(s).
Forpaintedantennas,theantenna-to-vehiclesealfeatureshallbenotbevisible.Thesealshallbeenconcealedbytheusingazeroclearanceradomedesignthatnearlytouchesthevehiclesheetmetal.TheallowablegapandallowablegapvariationshallbeTBD.
FinalapprovaloftheappearanceofthecompleteddesignwillcomefromGMDesignStaffandGMEngineering.
GIS-98A-209AntennaAppearance-Black(Unpainted)
GIS-98A-209Finish
Init’sinstalledposition,asdefinedbyGM7451M(section3.9),anyexposedsurfaceoftheantennaassemblyshallhaveanunpaintedfinish,withnoexposedfasteners,holes,sharpedges,burrs,flash,splayorsinkmarksontheexposedoutersurfaces.GMNAEngineeringmustapprovethelocationofgates,partinglines,andknockoutpins.
GIS-98A-210Color
TheexposedportionsoftheantennasystemcomponentsshallhaveacolorofWA848Black,asdefinedbyGM.
GIS-98A-211Gloss
Theantennabaseradomeshallhaveaglosslevelof20,asdefinedbyGM.
GIS-98A-212Grain
TheantennabaseradomeshallhaveagrainofGMCP640,FineStipple,asdefinedbyGM.
GIS-98A-213Shape
Theexposedportionoftheantennasystemshallhaveanaestheticallypleasingappearance,andshallbejointlydevelopedbyGMDesignStaffandthesupplier.Mock-upsofvariousdesignconsiderationswillbereviewedduringtheinitialproductdevelopmentstages,withtheintentofprovidingfinaldesigndetailspriortotheBetaphaseoftheassociatedvehicleprogram(s).
Thevisibleportionoftheantenna-to-vehiclesealfeatureshallbeminimizedwhentheantennaisinstalledonthevehicle.Visibleswellingordeformationofthesealshallbeminimizedwhiletheantennaassemblyisfullycompressedagainstthevehiclesheetmetalsurface.
FinalapprovaloftheappearanceofthecompleteddesignwillcomefromGMDesignStaffandGMEngineering.
GIS-98A-300DimensionsandCapabilities
Moduleand/orassemblysizeshallbeagreedtobetweenthesupplierandGeneralMotors.
Allreleasedproductdrawingsfortheantennaassemblydesignshallcontainallcomponentdimensions.
GIS-98A-301DimensionsofConnectors
Themaximumcross-sectionaldimensionsofthecoaxialconnectorshallbeincompliancewiththeappropriateUSCARconnectorspecification.
GIS-98A-302DimensionsofCoaxialLead-inCables
Theentirelead-insection,includingconnectors,shallbeabletopassthroughthemountinghole.TheGMDEshallspecifythespecificlead-inlengthsforthecorrespondingvehicleprograms.Thecoaxiallead-inlengthsareKPCs;thefinalizedlengthsshallbenotedontheproductdrawings.
GIS-98A-303DimensionsRelativetoAntennaAssemblyAttachment
Forroofmountapplications,theantennawillbeattachedtothevehiclesheetmetalsurfacethroughamountinghole.Thenominaldimensionsofthemountingholewillbe16mm(square);latersectionsofthisdocumentspecifythetolerancesapplicabletothisapplication.ThismountedholeisdescribedinGIS-96A.
GIS-98A-304DimensionsofAntennaAssembly
ThemaximumexteriorbasedimensionsshallnotexceedthosespecifiedbytheGMDE/LeadEngineer.Themaximumexteriordi
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