Cobra Electronics MR F75-D Antenna Requirements Attachment, Antenna Requirements And Attachment

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Antenna Requirements

 

 

 

 

And Attachment

 

 

 

Installation And Start-Up

 

 

 

 

 

 

 

Antenna Requirements And Attachment

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Antenna Requirements

 

 

 

 

Your CobraMarine VHF radio requires an external marine antenna

to send signals into the air and to receive them. The radio is arranged to use any of the popular marine VHF antennas, but it is up to you to choose which antenna to use.

Since it represents the link between your radio and the outside world, Cobra® suggests you purchase the best quality antenna, coaxial cable, and connectors you can. This is best accomplished with the advice and guidance of a knowledgeable dealer who can assess the variables involved with your particular boat and preferences.

WARNING

Compliance with FCC requirements for Radio Frequency Exposure is the responsibility of both the antenna installer and the radio operator.

Safe Maximum Permissible Exposure (MPE) Radius

To avoid health hazards from excessive exposure to RF energy, FCC OET Bulletin 65 establishes an MPE radius of 10' (3 m) for the maximum power of your radio with an antenna having a maximum power gain of 9 dBi. This means that all persons must be at least 10' (3 m) away from the antenna when the radio is transmitting.

Installation Requirements

A)An omnidirectional antenna with a gain not greater than 9 dBi must be mounted at least 16.4' (5 m) above the highest deck where people may be during radio transmissions, measured vertically from the lowest point of the antenna. This provides the minimum separation distance to comply with RF exposure requirements and is based on the MPE radius of 10' (3 m) plus the 6.6' (2 m) height of an adult.

B)For vessels without structure to mount the antenna as described in A, it must be mounted as follows AND all persons must be outside the 10' (3 m) MPE radius during radio transmissions. The antenna must be mounted so that its lowest point is at least 3.3' (1 m) vertically above the heads of all persons during radio transmissions.

Antenna Requirements

And Attachment

Installation And Start-Up

Radio Operator Requirements

Do not transmit when anyone is within the MPE radius of the antenna unless that person or persons are shielded from the antenna by a grounded metallic barrier. This is especially important on vessels with antennas mounted as described in B where no one may be within 9' (2.8 m) horizontally from the base of the antenna during transmissions.

FAILURE TO OBSERVE THE ABOVE LIMITS MAY EXPOSE THOSE WITHIN THE MPE RADIUS TO RF ENERGY ABSORPTION IN EXCESS OF THE FCC MAXIMUM PERMISSIBLE EXPOSURE. IT IS THE RADIO OPERATOR’S RESPONSIBILITY TO INSURE THAT MPE LIMITS ARE HEEDED AND THAT NO ONE IS WITHIN THE MPE RADIUS DURING TRANSMISSIONS.

Coaxial Cable Socket

Antenna Lead Attachment

Once the antenna is installed, the Coaxial Cable Lead can be attached to the socket at the back of the transceiver.

CAUTION

Attempting to transmit without an antenna attached will damage your CobraMarine VHF radio.

 

 

 

 

20 English

Nothing Comes Close to a Cobra® 21

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Contents Class-D Fixed Mount VHF Radio Our Thanks To You Customer AssistanceCustomer Assistance For Assistance In The U.S.A For Assistance Outside The U.S.AMicrophone/Speaker Product Features Transceiver Controls Indicators And ConnectionsProduct Features Microphone/Speaker With Auxiliary ControlsTable Of Contents Important Safety Information Important Safety InformationSafety Training Information Always use only Cobra authorized accessoriesFCC Information Recommendations For Marine CommunicationVoice Calling VHF Marine Radio ProceduresMaritime Mobile Service Identity Mmsi Maritime Mobile Service Identity MmsiDigital Selective Calling DSC Digital Selective Calling DSCRadiotelephone Calls Emergency Messages Distress ProcedureRadiotelephone Calls Marine Distress Procedure DSC Marine Distress ProcedureTell where you are SayIncluded In This Package Accessories Order InfoFor Credit Card Orders To Order OnlineMounting And Powering The Radio Mounting Powering The RadioMounting To Connect To a Power Source Electrical Power ConnectionLength Wire Gauge Antenna Requirements Attachment Installation RequirementsAntenna Requirements And Attachment Safe Maximum Permissible Exposure MPE RadiusExternal Devices And Connections External Devices ConnectionsPower On-Off Tones And AlarmsVolume Getting StartedTo Receive Weaker Signals To Decrease The Volume You Can Choose One Of The FollowingStandby And Receive SquelchSet-Up Routines Set-Up Routines Settings MenuLCD Backlight LCD ContrastConfirmation Tone Confirmation tone setting on or OFFA./International/Canada Channel Maps Time OffsetVoice Transmission Transmit Power OutputVoice Transmission ChannelsPublic Address Weather Radio And AlertNoaa All Hazards/Weather Radio And Alert Weather Alert Set-UpAdvanced Operation Weather Alert SignalAdvanced Operation Tri-WatchMemory Scan Memory ChannelsDSC Set-Up Digital Select Calling DSC SetupUser Mmsi Number If You Incorrectly Enter Your Mmsi NumberGroup Mmsi Number If You Transfer Your Radio To a Different VesselDSC 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 Digital Select Calling 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 Position Request Sending a Group CallIf The Station You Called Chose Not To Reply To Exit The Position Request ModeIf You Receive a Position If The Station You Called Cannot Send Its PositionSending a Position Send Receiving a Position RequestReceiving a Position Send To Clear Messages From The Call Log Memory Call Log and Distress LogSpecifications Maintenance TroubleshootingMaintenance TroubleshootingEnglish Nothing Comes Close to a Cobra VHF Marine Channel Assignments 03A 01A04A 05A19A 18A20A 21A28B 25B61A 62A79A 78A80A 81AVHF Marine Channel Assignments English Weather Channel AssignmentsWorld City Time Zones WarrantyWorld City Time Zones For Products Purchased In the U.S.AFlush Mount Template / Plantilla para montaje empotrado Product Service

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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