VHF Radio Etiquette and Emergency Channels Explained
A VHF marine radio is one of the most important safety tools on board any yacht.
Whether you're hailing a marina, speaking to another boat, or calling for help — knowing how to use it properly matters.
This post breaks down the basics of VHF radio etiquette, key channels, and emergency procedures in a simple, easy-to-follow way.
📡 What Is a VHF Marine Radio?
Short-range communication system used at sea
Reliable, fast, and monitored 24/7 by coast guards
Required on most commercial and private vessels
📻 Key VHF Channels You Should Know
Channel 16 – Emergency, distress, and calling channel
Always monitored by coast guards
Only use for hailing or emergencies
After making contact, switch to a working channel
Channel 06 – Intership safety communications
Used for ship-to-ship safety messages
Channel 72 & 77 – Working channels for yachts and recreational boats
Great for private conversations or coordination
Channel 10 & 13 – Port operations and bridge-to-bridge (mostly commercial use)
Channel 70 – Digital Selective Calling (DSC)
Used for automated distress calls via DSC-capable radios
🗣 How to Make a Proper Call
Switch to Channel 16
Listen first – Make sure it’s clear before you speak
Call Format (example):
“MAYDAY, MAYDAY, MAYDAY
This is SAILING VESSEL BLUE WAVE, BLUE WAVE, BLUE WAVE
Position: 43°30'N 16°26'E
We are taking on water and require immediate assistance
4 persons on board
Over.”
For non-emergency calls:
“[Boat Name] [Boat Name] [Boat Name],
This is [Your Boat Name], over.”
Wait for reply. Then move to a working channel (like 72 or 77) to continue.
🚨 Emergency Call Types
Mayday – Life-threatening situation (fire, sinking, MOB)
Pan-Pan – Urgent but not life-threatening (engine failure, medical issue)
Sécurité – Safety message (navigational hazard, weather warning)
⚓ Basic Radio Etiquette Rules
Keep it short and clear
Don’t use slang or jokes
Always identify yourself
Don’t block Channel 16
Avoid long chats — use working channels
Speak slowly and clearly
Say “Over” when you're done talking
Say “Out” when the conversation is complete
🛠 Bonus Tips
Check your radio daily – volume, squelch, and channel
Use a handheld VHF as backup
Mount a VHF call sign or MMSI number onboard for guests to see
Train all crew in basic use