Both category A and D radios can send and receive digitally encoded distress calls on channel 70, which is reserved exclusively for digital communications. Category A radios, however have two separate receivers, with one constantly tuned to channel 70. Category A radios are therefore more flexible and capable of delivering advanced communication capabilities.With the press of a button, all DSC equipped VHF radios can send a distress call in digital form on channel 70. The call, sent in much less than one second, includes your unique identification number (MMSI) and if the radio is connected to a GPS or Loran C, the precise location of your boat. The distress call will continue to be sent until it is answered by another station. The station hearing the call will likely call your radio on channel 16 or, in the case of the Coast Guard on 22A and begin the process of bringing you the help you need. Having a highly automatic way of making your need for assistance known has obvious advantages.

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Cobra Electronics MR F45-D Class-D Fixed Mount VHF Radio

Cobra Electronics MR F45-D Class-D Fixed Mount VHF Radio

Q: How do i activate my radio

Go to https://www.boatus.com/MMSI/MMSI/Home and register for an MMSI number. Once the MMSI number has been obtained it must be entered into the radio. Push the "CALL/SET" to enter the DSC menu then look for the MMSI entry option. Follow the prompts.

Q: Is this radio waterproof/water resistant? It doesn't say anything in the product description.

resistant, I have hit it with a hose while cleaning, seems like a good buy. I use it 30 miles off shore salt water.

4.6/5

Product ID: 229906864

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Details

Brand
Cobra
Color
White
Number of Channels
40
Special Feature
External Jack
Frequency Range
156-174 MHz
Talking Range Maximum
25 Mile

Frequently Bought Together

Cobra MR F45-D Fixed Mount VHF Marine Radio – 25 Watt VHF, Submersible, LCD Display, Noise Cancelling Microphone, NOAA Weather Channels, Signal Strength Meter, Scan Channels, White

UAYESOK VHF Marine Base Antenna 48 Inch Fiberglass Waterproof Boat Antenna W/7m RG-58U Cable Adjustable Ratchet Fixed Mount

Description

Cobra Electronics MR F45-D Class-D Fixed Mount VHF Radio

Specifications

Brand	COBRA ELECTRONICS
Manufacturer	COBRA ELECTRONICS
Model	MR F45-D
Model Year	2011
Product Dimensions	31.01 x 23.5 x 7.49 cm; 1.18 Kilograms
Item model number	MR F45-D
Tuner Technology	VHF
Standing screen display size	5 Inches
Colour Screen	Yes
Wattage	25 Watts
Batteries Included	No
Batteries Required	No
Does it contain liquid?	No
Includes Rechargeable Battery	No
Manufacturer	COBRA ELECTRONICS
Item Weight	1 kg 180 g

Have a Question? See What Others Asked

WHAT IS CLASS-D

I have a cobra marine radio f57b. Can I use the radio without requesting a mmsi #?

How do i activate my radio

Is this radio waterproof/water resistant? It doesn't say anything in the product description.

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