In compliance with SOLAS Ch IV, Regulation 12 Every Ship While at sea maintain a continuous watch (GMDSS): 1. Ships complying with regulations under area A1 : on VHF DSC channel 70 2. Ships complying with regulations under area A2 and A3 : on the distress and safety DSC frequency 2,187.5 kHz 3. Ships complying with regulations under area A3 and A4 : on the distress and safety DSC frequencies 2,187.5 kHz and 8,414.5 kHz and also on at least one  of the distress and safety DSC frequencies 4,207.5 kHz, 6,312 kHz, 12,577 kHz or 16,804.5 kHz. 4.  Ships complying with regulations under … [Read more...]