Cobra Electronics MRF45 Voice Transmission, Transmit Power Output, Channels, Transmit a Message

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Voice Transmission

Operating Your Radio

Voice Transmission

•

Transmit mode gives you the ability to communicate with safety services, other vessels, and shore stations. When you use this capability, be sure to follow the procedures and to observe the courtesies that govern its use so everyone benefits. (The tables on pages 14 through 23 will help you select the proper channels.)

Before pressing the Talk button to transmit a message, you should select the

Voice Transmission

Operating Your Radio

Transmit Power Output

Your radio can Transmit selectively at 1 or 25 watts of power. Cobra suggests you maintain the low power setting for short-range communications and to avoid overpowering nearby stations with your signal. Use the high power setting for long-range communications or when you do not receive a response

to a signal sent at 1 watt.

appropriate channel and transmit power output.

Channels

You can transmit voice messages on most VHF Channels. Refer to the VHF marine channel assignments on pages 14 through 23 to select a channel according to the type of message you are going to send.

High/Low Power Button

High/Low Power

To Toggle Between The High And Low Power Modes:

Press the High/Low Power button.

The LCD will show which mode is in effect.

Some channels are restricted to use at a maximum of one (1) watt. Your radio will automatically set the power to Low Power mode when you select those channels.

Up/Down Buttons

Channel 16/9 Buttons

To Change The Channel You Can Choose

From One (1) Of The Following:

■Press the Up/Down buttons. This will take you to the next higher or lower VHF channel. (When on Channel 88A, the next higher channel is Channel 1 and vice versa.) For rapid advance, press and hold the Up or Down buttons. (The confirmation tone will sound only for each button press, not during rapid advance.)

■Press the Channel 16/9 button. This will take you to Channel 16 with one (1) press and to Channel 9 with a second press. Additional presses will toggle between Channel 16 and Channel 9. Press and hold the Channel 16/9 button to return to Standby mode.

Low Power Setting

Two (2) Inches

[Five (5) cm] From Mouth

Talk Button

Transmit Icon

While using the U.S.A. channel map, if, in an emergency, you need to increase the output power on Channel 13 and Channel 67 for your signal to be heard, you can override the Low Power mode by pressing and holding the High/ Low Power button.

Transmit A Message

To Transmit A Message:

1.Check to see that your unit is set to a proper channel for the type of message you plan to send.

2.Toggle to the low power setting.

3.With the microphone about two (2) inches [five (5) cm] from your mouth, press and hold the Talk button and speak into the microphone. Transmit will be indicated on the LCD.

4.Release the Talk button when you are finished speaking. Your unit can only operate in either the Transmit or the Receive mode at any given time. You will not hear the response to your message unless the Talkbutton is released.

NOTE

If the Talk button is held down for five (5) minutes, the radio will automatically cease transmitting to prevent unwanted signal generation. As soon as the Talk button is released, it can be pressed again to resume transmission.

42 English

Nothing Comes Close to a Cobra® 43

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Contents Our Thanks ToYou Customer Assistance For Assistance In The U.S.AFor Assistance Outside The U.S.A Microphone Product Features Product FeaturesMicrophone With Auxiliary Controls Table Of Contents Important Safety Information Important Safety InformationSafety Training Information Always use only Cobra authorized accessoriesFCC Licensing Information Recommendations For Marine CommunicationVHF Marine Radio Procedures VHF Marine Radio Procedures Maintain Your WatchVoice Calling Voice CallingMaritime Mobile Service Identity Mmsi Maritime Mobile Service Identity MmsiDigital Selective Calling DSC Digital Selective Calling DSCEmergency Messages Distress Procedure Emergency Messages And Distress ProcedureRadiotelephone Calls Radiotelephone CallsMarine Distress Procedure Marine Distress Procedure DSCTell where you are SayVHF Marine Channel Assignments VHF Marine Channel AssignmentsInternational Distress, Safety and Calling 156.700 Rx Only 156.750156.800 156.850 03A Government Only20A Port Operations Port Operations, Ship Movement 21A U.S. Government Only Canada Coast Guard Only23A Government Only 64A U.S. Government Only Canada Commercial Fishing Digital Selective Calling Voice communications not allowed81A U.S. Government Only Environmental Protection Operations World City Time Zones Noaa Weather Channels AlertWorld City Time Zones Noaa Weather Channels And AlertMounting Powering The Radio Mounting And Powering The RadioIncluded In This Package Included In This PackageElectrical Power Connection Microphone BracketFlush Mount Kit Not Included Installation Requirements Antenna Requirements And AttachmentRadio Operator Requirements Safe Maximum Permissible Exposure MPE RadiusExternal Devices Connections External Devices And ConnectionsGlobal Positioning System GPS Device Not Included Microphone AttachmentTones And Alarms Power On-OffGetting Started Getting Started Volume Standby And Receive Squelch Set-Up Routines Settings Menu Set-Up RoutinesLCD Backlight LCD ContrastTo Set Your Radio For The Area In Which You Will Be Using It A./International/Canada Channel MapsTransmit Power Output Voice TransmissionVoice Transmission ChannelsWeather Radio And Alert Advanced OperationNoaa All Hazards/Weather Radio And Alert Advanced OperationDual-Watch ScanDSC Set-Up DSC Set-UpUser Mmsi Number If You Incorrectly Enter Your Mmsi NumberIfYou TransferYourRadioTo a DifferentVessel Group Mmsi NumberDSC Scanning Position Request Reply Type Individual DirectoryTo Set The Position Request Reply Type To Enter Or Edit Names And Mmsi Numbers In The DirectoryDSC Operation DSC OperationSending Distress Calls Receiving Distress Calls Sending An All Ships CallsRegarding Distress Relay Calls Receiving Distress Relay CallsReceiving An All Ships Call Sending An Individual CallSending a Geographical Call Receiving a Geographical CallReceiving An Individual Call Receiving a Group CallSending a Group Call Sending a Position RequestTo Exit The Position Request Mode If You Receive a PositionIf The Station You Called Cannot Send Its Position If The Station You Called Chose Not To ReplyReceiving a Position Request Sending a Position SendReceiving a Position Send Maintenance Troubleshooting SpecificationsMaintenance TroubleshootingProduct Service Accessories Order Info Optional Accessories
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