Take your GMDSS Course Online! GMDSS (Global Maritime Distress and Safety System) is an international system that uses advanced terrestrial and satellite technology and ship-board radio systems. This online course contains virtual simulations, developed by HALO°, for all necessary equipment including VHF radio, MF/HF radio, Inmarsat-C System, NAVTEX, EPIRB, SART and more. These simulations are threaded throughout the course to make learning simple and easy. GMDSS Certification is required for al

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How important is it to test the MF/HF GMDSS radio? Testing the MF/HF GMDSS radio is not optional it’s critical. This equipment is your last line of communication when VHF range is gone and emergencies happen far from shore. Regular testing ensures the radio can transmit distress alerts, reach RCCs, and maintain contact during real life-or-death situations. A radio that is not tested is a radio you cannot trust when it matters most. At sea, preparedness is not about compliance it’s about survival