Marine Operations

Radiotelephony General Operators Certificate (GOC) (GMDSS)

Duration:  9 days (including exam)
Per Delegate:  £1,535.00

Practical Content


Theoretical Content


There are no prerequisites for this course. 

Key Learning Outcomes

  • Develop the skills and knowledge to operate and identify Global Maritime Distress and Safety System (GMDSS) equipment
  • Understand VHF/HF/MF, satellite, radiotelephony and telex procedures and operational procedures of GMDSS.
  • Understand and the detailed practical operation of all sub-systems and equipment.

Course Content

  • Safety of life at sea
  • GMDSS communication procedures and regulations
  • Operation of VHF/MF/HF radio equipment
  • Operation of digital selective calling, Navtex equipment and Inmarsatc
  • Emergency Position Indicating Radio Beacons (EPIRBs) and Search and Rescue Transponders (SARTs)


Delegates will undertake a written examination paper, radio communication exercise and operational performance test to demonstrate they have achieved the key learning outcomes detailed above. These are assessed by an external AMERC (Association of Marine Electronic and Radio Colleges) examiner and the exam papers are then sent to AMERC for verification.

PPE Requirements

PPE not required.

Further Information

This classroom based course is delivered using a live and integrated Transas computer based satellite communication simulator

This certificate is the highest level of radio operator’s licence available to professional seafarers. It meets all STCW conditions; is a requirement for unlimited MCA Certificates of Competence; and provides a licence to operate as required by the Wireless Telegraphy Act 2006 for persons transmitting on Marine frequencies.

Target Audience
Target Audience

Offshore radio operators and other personnel who are required to operate transmitters on Maritime Frequencies (within any Sea Area/beyond GMDSS Sea Area A1).


GMDSS General Operators Certificate (GOC) is issued by AMERC following verification of the examination papers.

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