Cobra Electronics MRF45 owner manual 64A U.S. Government Only Canada Commercial Fishing

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			VHF Marine
			Channel Assignments
	VHF Marine Radio Protocols

	Channel	Channel Map		Frequency	Power
	Number	USA Int’l Canada Transmit Receive			Limits

VHF Marine Radio Protocols

Channel Use

VHF Marine

Channel Assignments

63		•		156.175	160.775
63A	•			156.175	156.175
64		•	•	156.225	160.825
64A	•		•	156.225	156.225
65		•		156.275	160.875
65A	•	•	•	156.275	156.275
66		•		156.325	160.925
66A	•	•	•	156.325	156.325	1 Watt CAN
67	•	•	•	156.375	156.375	1 Watt USA

68	•	•	•	156.425	156.425
69	•	•	•	156.475	156.475

70	•	•	•	RX only	156.525
71	•	•	•	156.575	156.575

72	•	•	•	156.625	156.625
73	•	•	•	156.675	156.675

74	•	•	•	156.725	156.725

75		•		156.775	156.775	1 Watt INT

76		•		156.825	156.825	1 Watt INT

77	•	•	•	156.875	156.875	1 Watt CAN

63Public Correspondence (Marine Operator), Port Operations, Ship Movement

63A Port Operations and Commercial, VTS in selected areas

64Public Correspondence (Marine Operator), Port Operations, Ship Movement

64A U.S. (Government Only); Canada (Commercial Fishing)

65Public Correspondence (Marine Operator), Port Operations, Ship Movement

65A Port Operations

66Public Correspondence (Marine Operator), Port Operations, Ship Movement

66A Port Operations

67U.S. (Commercial). Used for bridge-to-bridge communications in lower Mississippi River (Intership Only); Canada (Commercial Fishing), S&R

68Non-Commercial (Recreational)

69U.S. (Non-Commercial, Recreational); Canada (Commercial Fishing Only); International (Intership, Port Operations, Ship Movement)

70Digital Selective Calling (Voice communications not allowed)

71U.S. and Canada (Non-Commercial, Recreational); International (Port Operations, Ship Movement)

72Non-Commercial (Intership Only)

73U.S. (Port Operations); Canada (Commercial Fishing Only); International (Intership, Port Operations, Ship Movement)

74U.S. (Port Operations); Canada (Commercial Fishing Only); International (Intership, Port Operations, Ship Movement)

75U.S. Port Operations (Intership Only)

76U.S. Port Operations (Intership Only)

77Port Operations (Intership only). Restricted to communications with pilots for movement and docking of ships.


20 English		Nothing Comes Close to a Cobra® 21

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Contents Customer Assistance For Assistance In The U.S.A Our Thanks ToYouFor Assistance Outside The U.S.A Product Features Microphone Product FeaturesMicrophone With Auxiliary Controls Table Of Contents Important Safety Information Important Safety InformationSafety Training Information Always use only Cobra authorized accessoriesRecommendations For Marine Communication FCC Licensing InformationVHF Marine Radio Procedures Maintain Your Watch VHF Marine Radio ProceduresVoice Calling Voice CallingMaritime Mobile Service Identity Mmsi Maritime Mobile Service Identity MmsiDigital Selective Calling DSC Digital Selective Calling DSCEmergency Messages And Distress Procedure Emergency Messages Distress ProcedureRadiotelephone Calls Radiotelephone CallsMarine Distress Procedure DSC Marine Distress ProcedureTell where you are SayVHF Marine Channel Assignments VHF Marine Channel Assignments156.700 Rx Only 156.750 International Distress, Safety and Calling156.800 156.850 03A Government Only21A U.S. Government Only Canada Coast Guard Only 20A Port Operations Port Operations, Ship Movement23A Government Only Digital Selective Calling Voice communications not allowed 64A U.S. Government Only Canada Commercial Fishing81A U.S. Government Only Environmental Protection Operations Noaa Weather Channels Alert World City Time ZonesWorld City Time Zones Noaa Weather Channels And AlertMounting And Powering The Radio Mounting Powering The RadioIncluded In This Package Included In This PackageMicrophone Bracket Electrical Power ConnectionFlush Mount Kit Not Included Antenna Requirements And Attachment Installation RequirementsRadio Operator Requirements Safe Maximum Permissible Exposure MPE RadiusExternal Devices And Connections External Devices ConnectionsGlobal Positioning System GPS Device Not Included Microphone AttachmentPower On-Off Tones And AlarmsGetting Started Getting StartedStandby And Receive VolumeSquelch Set-Up Routines Set-Up Routines Settings MenuLCD Backlight LCD ContrastA./International/Canada Channel Maps To Set Your Radio For The Area In Which You Will Be Using ItVoice Transmission Transmit Power OutputVoice Transmission ChannelsAdvanced Operation Weather Radio And AlertNoaa All Hazards/Weather Radio And Alert Advanced OperationScan Dual-WatchDSC Set-Up DSC Set-UpUser Mmsi Number If You Incorrectly Enter Your Mmsi NumberGroup Mmsi Number IfYou TransferYourRadioTo a DifferentVesselDSC Scanning Individual Directory Position Request Reply TypeTo Set The Position Request Reply Type To Enter Or Edit Names And Mmsi Numbers In The DirectoryDSC Operation DSC OperationSending Distress Calls Sending An All Ships Calls Receiving Distress CallsRegarding Distress Relay Calls Receiving Distress Relay CallsSending An Individual Call Receiving An All Ships CallSending a Geographical Call Receiving a Geographical CallReceiving a Group Call Receiving An Individual CallSending a Group Call Sending a Position RequestIf You Receive a Position To Exit The Position Request ModeIf The Station You Called Cannot Send Its Position If The Station You Called Chose Not To ReplySending a Position Send Receiving a Position RequestReceiving a Position Send Specifications Maintenance TroubleshootingMaintenance TroubleshootingProduct Service Optional Accessories Accessories Order Info