RYA VHF/SRC Marine radio: pre-course learning

VHF Channels

Channel Number Use Channel Number Use
6 Ship to Ship 67 HM Coastguard Small Craft Safety
8 Ship to Ship 70 DSC Reserved Channel. No Voice Communications
10 MSI / Pollution Control (back up) 72 Ship to Ship
12 Port Operations 77 Ship to Ship
13 Bridge to Bridge  80 Port Operations (UK Marinas/Harbours)
16 International Distress, Safety & Calling    
62, 63, 64 HM Coastguard Maritime Safety Information     

Phonetic alphabet:

A ALPHA J JULIET S SIERRA
BRAVO  K KILO T TANGO
C CHARLIE L LIMA U UNIFOR
D DELTA M MIKE V VICTOR
E ECHO N NOVEMBER W WHISKEY
F FOXTROT O OSCAR X X-RAY
G GOLF P PAPA Y YANKEE
H HOTEL Q QUEBEC Z ZULU
I INDIA R ROMEO    

VHF Procedure Words (Pro Words)

Over An invitation to reply Mayday Distress = Grave & Imminent Danger
Out  This is said by each station at the end of working communications  PanPan  Urgency
This is From a station whose name or call sign immediately follows Securite Safety
I say again I am repeating what i have just said Mayday Relay  
Station calling Used when a station receives a call which is intended for it but is uncertain the ID of the calling station Seelonce Mayday Imposing radio silence
Read Back Please read back the message i have sent you Seelonce Feenee End of radio silence
Wrong Reply to a message that has just been 'read back' but is in error     
Correct Reply to a message that has been read back for check    
Correction Spoken when a mistake has been made. The correct words follows    
Received  Your message is received and understood    
Wait If a station is unable to accept traffic immediately.     
I spell I shall spell the next word    
All after Used after the pro-words 'say again' to request repetition of a section of the message    
All before Used after the pro-words 'say again' to request repetition of a section of the message    
Repeat Used if any part of a message is considered important to need emphasising     

Mayday call procedure:

Acronym: MIRPDANIO

 

M - MAYDAY X 3

I - IDENTIFICATION 

R - REPEAT

P - POSITION

D - NATURE OF DISTRESS

A - ASSISTANCE REQUIRED

N - NUMBER OF PERSONS ONBOARD

I - INFORMATION

O - OVER

EXAMPLE MAYDAY CALL: 

 

Mayday, Mayday, Mayday

This is: Powerboat Erebus, Erebus, Erebus, Callsign ZZBA, MMSI 234001234

Mayday Powerboat Erebus, Callsign ZZBA, MMSI 234001234

My Position is 50 degrees, 46 minutes N, 001 degrees 17 minutes W

Swamped in a rough sea and sinking

I require immediate assistance 

Four people onboard

Abandoning to liferaft

Over


Other useful info:

EPIRB - Emergency Postion Indicating Radio Beacon

SART - Search And Rescue Transponder 

VHF - Very High Frequency

DSC - Digital Selective Calling