You must have 18 years old and own a boating license or a valid professional certificate. This license it’s valid for Portugal.
The preparation course for the VHF-A exam includes the practice of the simulator including simulation calls of Mayday, PanPan, Securité and routine as well as the use of the DSC for mayday and routine (individual) calls).
The program includes.
Licenses and certificates;
Types of equipment;
How to use a VHF Radio;
Communications: Mayday, urgency and safety (Mayday, PanPan and Securité);
GMDSS and basic knowledge on how to use the DSC (not covered in the exam);
Exercises and practice of the simulator