The pattern of call procedure is the same calls to Coastal Radio Station (CRS).
In general, Coastguard should be called on Channel 16. And then you need to follow the instruction from coastguard.
You can do a radio check with any station that is prepared to co-operate!
Identify called station – say it up to 3 times,
This is
Say your callsign – say it up to 3 time,
Radio check, please,
Over.
If the VHF call is intended for you, but you can’t get the name of calling station – substitute the name in answer and use instead: Station calling + you callsign.
Station calling + [you callsign],
this is
[you callsign],
Over.
This is a type of DSC call in case, you want to contact with all vessels in one flotilla. The group call is the Routine call send on MMSI Group.
After broadcasting the Group call on VHF radio Channel 70, voice communication continues on selected working channel.