Marine Radio Guide
VHF Communication for Boating Safety
Marine VHF radios are essential safety equipment for any boater. From calling the Coast Guard to coordinating with other vessels, VHF provides reliable communication where cell phones fail. Modern DSC-equipped radios can automatically transmit your position in emergencies.
Getting Started with Marine VHF
Essential boating communication
Best Marine VHF Radios 2026
Top picks for handheld marine VHF radios from Standard Horizon, Uniden, and more. DSC-equipped options for safety.
View GuideMarine Radio Licensing & MMSI
Understanding MMSI numbers, DSC registration, and when you need a marine radio license.
View GuideEmergency Prep Gear
Complete emergency communication setup including marine, weather, and scanner options.
View GuideWeather Alert Radios
NOAA weather alerts complement marine VHF for complete maritime safety coverage.
View GuideWhy VHF Marine Radio?
Cell phones aren't reliable offshore. Marine VHF is the global standard for maritime safety communication.
Coast Guard Direct
Channel 16 connects you directly to Coast Guard for emergencies, search and rescue, and distress calls.
DSC Position Alerts
Digital Selective Calling transmits your GPS position automatically with distress calls. One-button emergency.
Works Offshore
25 watts of power means 20+ mile range, far beyond where cell service ends. Essential for offshore trips.
Weather Updates
NOAA weather broadcasts on WX channels. Get marine forecasts, storm warnings, and sea conditions.
Key Marine VHF Channels
Know the essential frequencies
Channel 16 (156.8 MHz)
DISTRESS & CALLING
International distress, safety, and calling channel. All vessels must monitor. Call the Coast Guard here, then switch to a working channel.
Channel 22A (157.1 MHz)
COAST GUARD
Coast Guard liaison and marine safety broadcasts. After initial contact on 16, the Coast Guard may direct you here.
Channel 9 (156.45 MHz)
CALLING (ALTERNATE)
Secondary calling channel in some areas. Some boaters prefer this for non-emergency hailing to keep 16 clear.
WX Channels
NOAA WEATHER
Seven dedicated weather channels (WX1-WX7) broadcast continuous NOAA forecasts. Essential for planning and storm tracking.
Bridge-to-Bridge Channels
Channels 13 and 67 are used for navigation and maneuvering, especially near bridges, in narrow passages, and for communicating with large commercial vessels. Use 1-watt power on Channel 13.
Licensing Requirements
When you need a license for marine VHF
No License Required
- Recreational boaters in U.S. waters
- Domestic voyages (not international)
- Non-commercial vessels
- Still need MMSI for DSC features
License Required
- International voyages
- Commercial vessels
- Vessels required to carry radio
- Using SSB or satellite communications
MMSI Registration is Free
Even without a license, you should register for an MMSI (Maritime Mobile Service Identity) number. It's free for recreational boaters through BoatUS or Sea Tow, and it's required to use DSC emergency features. Learn how to get your MMSI.
Essential Safety Equipment
Marine VHF isn't just a convenience—it's critical safety equipment. When you're miles offshore and need help, VHF radio is your lifeline to the Coast Guard and nearby vessels.