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.

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.

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.

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Some deliveries may take a little longer than usual due to regional shipping conditions.

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Reviews

G**N

Looks and works great.

This was very easy to install and is very easy to use. Be aware that you will need an antenna before using it. We didn't realize that a separate antenna was "required" and thought it may work for our needs without one. But the instructions say not to operate without an antenna. But the sales information on the page didn't mention that. I now think all of these style of radios are probably the same in that aspect and we simply didn't know. This is my first mounted VHF radio as I have only used hand held before this. Live and learn.

16.07.2025

R**S

worked

nice set should get the job done

2.02.2026

B**Y

Great quality and price

Purchased this VHS Marine Radio for our boat. Excellent quality, clear sound, easy to use. If you're in need of boat speakers, the Boss Marine Audio Systems speakers are a good find, quality and price as well. Happy with purchases.

30.09.2024

R**S

WORKS WELL

GREAT

20.08.2025

J**L

value for money

good product

12.08.2025

A**R

Perfect

Bought this as a gift for my hubby. Should have bought the antenna also.. it needs a certain kind. Nice quality easy to use. Good signal. Like the white color. Small which is perfect

3.06.2025

J**N

Quality

Installed at wheel in cockpit of my C30 sailboat ⛵️

7.06.2025

T**B

Good VHF radio with Distress and GPS Coordinates

***Update*** This radio turns out to be pretty good. I got all the connections figured out, registered the VHF MMSI number with Boat US and now my boat can transmit an emergency signal with coordinates if I get in a PAN,PAN,PAN or MAYDAY situation. I was also able to communicate with commercial shipping traffic on the Chesapeake Bay from my boat in my backyard (Dead of winter, test) about 15 miles away in VA Beach. I did a radio transmit test and got a loud and clear back...looking good now for putting the boat in the water now that it's Spring... **Old Section ** You know, I like the price, The look is cool, the function is cool. However the Panic hookup has proven to be a PITA. I also cannot quite get a good single from my house in Virginia Beach, haven't put the boat in the water since Christmas when I got this, but test in my backyard have proven fruitless. So far, I can just say this radio is ok.

26.01.2013

ASIN	B004HSND3M
Additional Features	External Speaker Jack, Illuminated Function Keys, LCD Screen, Signal Strength Meter, Submersible
Best Sellers Rank	#46,304 in Electronics ( See Top 100 in Electronics ) #27 in Marine Two-Way Radios
Brand	COBRA
Built-In Media	Bracket Mount Kit, GPS Interface Cable
Color	White
Compatible Devices	VHF-enabled marine devices
Connectivity Protocol	VHF
Customer Reviews	4.6 out of 5 stars 862 Reviews
Frequency Range	156-174 MHz
Global Trade Identification Number	00028377201486
Item Dimensions D x W x H	9.25"D x 12.21"W x 2.95"H
Item Type Name	VHF Marine Fixed Mount Radio
Item Weight	2.6 Pounds
Manufacturer	Cobra Electronics
Model Number	MR F45-D
Number of Channels	40
Special Feature	External Speaker Jack, Illuminated Function Keys, LCD Screen, Signal Strength Meter, Submersible
Talking Range Maximum	25 Mile
Tuner Type	VHF
UPC	155577227678 115970807204 001910002801 066510899299 028377201486 999993896779 887216920144 151903157404 053786306736 115970979048 168141275920 100177403656 731215381164 885417299281 168141302374 088020569622 780320067715 163121374860 782386086983 042035834328 731215043642 163120502516 115970770973 053786300543
Warranty Description	3 Year Limited Manufacturer
Water Resistance Level	Water Resistant
Waterproof Rating	IP67

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

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