ChannelNumberShipTransmitMHzShipReceiveMHzUse01A156.050156.050PortOperationsandCommercial,VTS.AvailableonlyinNewOrleans/LowerMississippiarea.05A156.250156.250PortOperationsorVTSintheHouston,NewOrleansandSeattleareas.06156.300156.300IntershipSafety07A156.350156.350Commercial08156.400156.400Commercial(Intershiponly)09156.450156.450BoaterCalling.CommercialandNon-Commercial.10156.500156.500Commercial11156.550156.550Commercial.VTSinselectedareas.12156.600156.600PortOperations.VTSinselectedareas.IntershipNavigationSafety(Bridge-to-bridge).Ships>20m13156.650156.650lengthmaintainalisteningwatchonthischannelinUSwaters.14156.700156.700PortOperations.VTSinselectedareas.15一一156.750Environmental(Receiveonly).UsedbyClassCEPIRBs.InternationalDistress,SafetyandCalling.Shipsrequiredto16156.800156.800carryradio,USCG,andmostcoaststationsmaintainalisteningwatchonthischannel.17156.850156.850StateControl18A156.900156.900Commercial19A156.950156.950Commercial20157.000161.600PortOperations(duplex)20A157.000157.000PortOperations21A157.050157.050U.S.CoastGuardonly22A157.100157.100CoastGuardLiaisonandMaritimeSafetyInformationBroadcasts.Broadcastsannouncedonchannel16.23A157.150157.150U.S.CoastGuardonly24157.200161.800PublicCorrespondence(MarineOperator)25157.250161.850PublicCorrespondence(MarineOperator)26157.300161.900PublicCorrespondence(MarineOperator)27157.350161.950PublicCorrespondence(MarineOperator)28157.400162.000PublicCorrespondence(MarineOperator)63A156.175156.175PortOperationsandCommercial,VTS.AvailableonlyinNewOrleans/LowerMississippiarea.65A156.275156.275PortOperations66A156.325156.325PortOperations67156.375156.375Commercial.UsedforBridge-to-bridgecommunicationsinlowerMississippiRiver.Intershiponly.68156.425156.425Non-Commercial69156.475156.475Non-Commercial70156.525156.525DigitalSelectiveCalling(voicecommunicationsnotallowed)71156.575156.575Non-Commercial72156.625156.625Non-Commercial(Intershiponly)73156.675156.675PortOperations74156.725156.725PortOperations77156.875156.875PortOperations(Intershiponly)78A156.925156.925Non-Commercial79A156.975156.975Commercial.Non-CommercialinGreatLakesonly80A157.025157.025Commercial.Non-CommercialinGreatLakesonly81A157.075157.075U.S.Governmentonly-Environmentalprotectionoperations.82A157.125157.125U.S.Governmentonly83A157.175157.175U.S.CoastGuardonly84157.225161.825PublicCorrespondence(MarineOperator)85157.275161.875PublicCorrespondence(MarineOperator)86157.325161.925PublicCorrespondence(MarineOperator)87157.375157.375PublicCorrespondence(MarineOperator)88A157.425157.425Commercial,Intershiponly.AIS1161.975161.975AutomaticIdentificationSystem(AIS)AIS2162.025162.025AutomaticIdentificationSystem(AIS)(ThischartisalsoavailableintextorExcelversions)VHFMaritimeSpectrumChartNOAAWeatherRadioFrequenciesChannelFrequency(MHz)WX1162.550WX2162.400WX3162.475WX4162.425WX5162.450WX6162.500WX7162.525SeetheNOAAWeatherRadioHomepageformoreinformation.AdditionalInformation,Frequencies,&ChartsFrequenciesareinMHz.Modulationis16KF3Eor16KG3E.Notethattheletter"A"indicatessimplexuseoftheshipstationtransmitsideofaninternationalduplexchannel,andthatoperationsaredifferentthaninternationaloperationsonthatchannel.SomeVHFtransceiversareequippedwithan"International-U.S."switchforthatpurpose."A"channelsaregenerallyonlyusedintheUnitedStates,anduseisnormallynotrecognizedorallowedoutsidetheU.S.Theletter"B"indicatessimplexuseofthecoaststationtransmitsideofaninternationalduplexchannel.TheU.S.doesnotcurrentlyuse"B"channelsforsimplexcommunicationsinthisband.BoatersshouldnormallyusechannelslistedasNon-Commercial.Channel16isusedforcallingotherstationsorfordistressalerting.Channel13shouldbeusedtocontactashipwhenthereisdangerofcollision.Allshipsoflength20morgreaterarerequiredtoguardVHFchannel13,inadditiontoVHFchannel16,whenoperatingwithinU.S.territorialwaters.UsersmaybefinedbytheFCCforimproperuseofthesechannels.SeeMarineRadioWatchRequirementsforfurtherinformation.SeetheFederalCommunicationsCommission'sMarineVHFRadioChannelspage.TheFCCpagedoesnotincludefrequencyinformation,buthasmorecompleteinformationontheuseofthechannels.Ifyounoticeanydiscrepancybetweenthesetwolists,pleasenotifyusat.AlsoavailableareInternationalVHFMaritimeRadioChannelsandFrequencies,NarrowbandVHFMaritimeChannelsandFrequencies,RadioInformationforBoaters,andU.S.CoastGuardVHFDistressandSafetyCoverage
