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Marine Communication

A VHF-FM marine radio is the first line of communication between you and ports, marinas, and other boaters, and is recommended by the US Coast Guard as your primary means of distress signaling. Get familiar with this essential electronic, radio frequencies, and the proper protocol for receiving and transmitting messages.
Cell Phone vs. VHF-FM Marine Radio
When it comes to relaying a distress call to the Coast Guard, a cell phone call to 911 works in a pinch, but the Coast Guard prefers mariners use Channel 16 on a VHF-FM marine radio.
VHF-FM Marine Radio – Your Lifeline in an Emergency
Calling for help on VHF Channel 16 should be your primary means of making a maritime distress call. If you don't own a VHF-FM marine radio, find out compelling reasons why you should.
Boat U.S. DSC Radio Registration
Boat U.S. is giving free Mobile Maritime Service Identity (MMSI) ID numbers to boaters with radios equipped with Digitial Selective Calling (DSC). The site offers a DSC radio tutorial.
Digital Selective Calling Overview
Not sure what DSC VHF radios do? Here's a run-down of what they will, and will not do for you.
Coast Guard Rescue 21
The Coast Guard Rescue 21 system is "quantum leap forward" in distress call response, and hinges upon properly equipped and registered DSC VHF marine radios. Find out more about Rescue 21 and it's impact on all mariners.

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