Cobra Electronics MR F75-D Digital Select Calling DSC Operation, Sending Distress Calls

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Digital Select Calling (DSC)

Operation

Operating Your Radio

DSC Operation

•

 

Sending DSC calls is done from menus similar to the Settings menu. Whereas entering the Settings menu required a press and hold of the Call/Set button, the sending menus appear with a press of the Distress button.

All received DSC calls will sound one (1) or another of the alarms to alert you to them. See pages 24 through 25 for descriptions of the different alarms. Pressing any button will turn Off the alarm while maintaining the received call information on the LCD.

Sending Distress Calls

The ability to send and receive distress calls and their acknowledgements on Channel 70 can literally be a lifesaver for you or another mariner.

NOTE

The DSC call will:

■Sound the distress alarm at all receiving stations.

■Inform receiving stations of your identity (MMSI).

■Inform receiving stations of your position if you have a GPS device connected or you have manually entered your position.

It will not provide the receiving stations with other distress information such as the nature of your problem, number of persons aboard, injuries, or the like. For that, you will have to communicate by voice on Channel 16 with the station that acknowledges your DSC distress call.

Operating Your Radio

Distress Button

Manual

Position Entry Screen

Exit

Transmit USA High

Digital Select Calling (DSC) Operation

2.Choose one (1) of the following:

a.To Send An Automatic Distress Call:

1)Press and hold the Distress button.

b.To Send A Manual Distress Call:

1)Use the Up/Down buttons to move the arrow to MANUAL.

2)Press the Call/Set button to go to the position entry screen.

3)Use the Up/Down buttons to manually set the position of your vessel.

4)Press the Call/Set button to send the message.

5)Press and hold the Distress button.

c.To Abort The Distress Call Process:

If you pressed the Distress button by mistake or if you have not received an acknowledgement and want to discontinue the automatic resending of your distress message:

1)

Use the Up/Down buttons to move the arrow

 

to EXIT.

2)

Press the Call/Set button to return to

 

Standby mode.

Distress Button

Send/Manual/Exit

To Begin Sending A DSC Distress Call:

1.From Standby mode, lift the spring-loaded red door on the transceiver and press the Distress button under it. This will open the Distress menu with the arrow pointing to SEND. You will have three (3) choices:

■Send the distress call automatically with either no position information if a GPS is not connected or with the position provided by a connected GPS.

■Manually enter your position, then send the distress call.

■Abort the distress call process and return to Standby mode.

Distress Waiting

Distress Acknowledgement

The distress alarm will sound to let you know that the message is being sent. At the end of the transmission, the radio will maintain a watch on Channels 16 and Channel 70 for an acknowledgement. Press any button to turn Off the alarm and return to Standby mode.

If an acknowledgement is received, the distress alarm will sound again and the responding party’s MMSI number will show on the LCD.

If no acknowledgement is received, the radio will resend the message at approximately four (4) minute intervals until an acknowledgement is received or you abort the distress call.

 

 

 

 

46 English

Nothing Comes Close to a Cobra® 47

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Contents Customer Assistance For Assistance In The U.S.A Our Thanks To You Customer AssistanceClass-D Fixed Mount VHF Radio For Assistance Outside The U.S.AProduct Features Transceiver Controls Indicators And ConnectionsMicrophone/Speaker Product Features Microphone/Speaker With Auxiliary ControlsTable Of Contents Safety Training Information Important Safety InformationImportant Safety Information Always use only Cobra authorized accessoriesRecommendations For Marine Communication FCC InformationVHF Marine Radio Procedures Voice CallingDigital Selective Calling DSC Maritime Mobile Service Identity MmsiMaritime Mobile Service Identity Mmsi Digital Selective Calling DSCRadiotelephone Calls Emergency Messages Distress ProcedureRadiotelephone Calls Tell where you are Marine Distress ProcedureMarine Distress Procedure DSC SayFor Credit Card Orders Accessories Order InfoIncluded In This Package To Order OnlineMounting Mounting Powering The RadioMounting And Powering The Radio Length Wire Gauge Electrical Power ConnectionTo Connect To a Power Source Antenna Requirements And Attachment Installation RequirementsAntenna Requirements Attachment Safe Maximum Permissible Exposure MPE RadiusExternal Devices Connections External Devices And ConnectionsVolume Tones And AlarmsPower On-Off Getting StartedStandby And Receive To Decrease The Volume You Can Choose One Of The FollowingTo Receive Weaker Signals SquelchLCD Backlight Set-Up Routines Settings MenuSet-Up Routines LCD ContrastA./International/Canada Channel Maps Confirmation tone setting on or OFFConfirmation Tone Time OffsetVoice Transmission Transmit Power OutputVoice Transmission ChannelsNoaa All Hazards/Weather Radio And Alert Weather Radio And AlertPublic Address Weather Alert Set-UpAdvanced Operation Weather Alert SignalAdvanced Operation Tri-WatchMemory Channels Memory ScanUser Mmsi Number Digital Select Calling DSC SetupDSC Set-Up If You Incorrectly Enter Your Mmsi NumberDSC Scanning If You Transfer Your Radio To a Different VesselGroup Mmsi Number To Set The Position Request Reply Type Position Request Reply TypeIndividual Directory To Enter Or Edit Names And Mmsi Numbers In The DirectorySending Distress Calls Digital Select Calling DSC OperationDSC Operation Regarding Distress Relay Calls Receiving Distress CallsSending An All Ships Calls Receiving Distress Relay CallsSending a Geographical Call Receiving An All Ships CallSending An Individual Call Receiving a Geographical CallSending a Position Request Receiving An Individual CallReceiving a Group Call Sending a Group CallIf You Receive a Position To Exit The Position Request ModeIf The Station You Called Chose Not To Reply If The Station You Called Cannot Send Its PositionReceiving a Position Send Receiving a Position RequestSending a Position Send Call Log and Distress Log To Clear Messages From The Call Log MemoryMaintenance Maintenance TroubleshootingSpecifications TroubleshootingEnglish Nothing Comes Close to a Cobra VHF Marine Channel Assignments 04A 01A03A 05A20A 18A19A 21A61A 25B28B 62A80A 78A79A 81AWeather Channel Assignments VHF Marine Channel Assignments EnglishWorld City Time Zones WarrantyWorld City Time Zones For Products Purchased In the U.S.AProduct Service Flush Mount Template / Plantilla para montaje empotrado

MR F75-D specifications

Cobra Electronics has long been a name associated with reliable communication solutions, and the MR F75-D is no exception. This high-performance marine VHF radio is designed specifically for boaters, offering a blend of essential features, advanced technologies, and user-friendly characteristics that make it an excellent choice for both recreational and commercial marine applications.

One of the standout features of the MR F75-D is its Class D DSC (Digital Selective Calling) capability, which allows users to send distress calls and communicate with other vessels or coast guard stations at the push of a button. This increases safety on the water, as it provides an automated means to alert others in case of emergencies.

The radio operates seamlessly on the vital marine channels, ensuring that users have access to all the necessary frequencies for navigation and communication. With an impressive 25 watts of transmitting power, the MR F75-D provides extended range, ensuring that calls can be made even in challenging conditions.

The Cobra MR F75-D boasts an ergonomic design featuring a solid weather-resistant construction to withstand the harsh marine environment. Its large, easy-to-read backlit LCD display enhances readability in bright sunlight or low-light conditions, making it accessible under various circumstances.

Moreover, the radio includes a built-in NOAA weather radio with alerts. This feature keeps users informed about local weather conditions and forecasts, enabling them to make better decisions while out at sea. The option to scan channels and save favorites makes it easy to navigate through crowded frequencies to find the right communication line.

The MR F75-D is equipped with Dual Watch and Tri-Watch functions, allowing users to monitor two or three channels simultaneously. This increases the chances of receiving essential messages while on the water, providing greater peace of mind.

With a compact design, the MR F75-D can fit easily on most boats, while the intuitive controls enhance usability. The radio also supports external GPS connection, offering even better situational awareness.

In conclusion, the Cobra Electronics MR F75-D is a versatile, durable, and feature-rich marine VHF radio. With its DSC capabilities, NOAA weather notifications, and robust build, it proves to be an invaluable tool for safe and efficient marine communication, making it a top choice for any boating enthusiast.
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