If a vessel is engaged in local trade and at no point in its voyage travels outside the range of a VHF shore station with continuous DSC alerting then the vessel is operating in what area?
• GMDSS sea areas definitions under SOLAS • What defines Sea area A1 specifically (hint: coverage of at least one VHF coast station with continuous DSC alerting) • Difference between a specific GMDSS sea area label and more general terms like 'coastal' or 'inland'
• Which option directly corresponds to a formally defined GMDSS sea area, rather than a descriptive phrase? • If the key factor is staying within range of a VHF shore station that continuously watches DSC, which GMDSS sea area is defined that way? • Do any of the answer choices combine more than one sea area, and does the question mention more than one type of coverage?
• Verify the formal IMO/SOLAS definition of Sea area A1 and how it mentions VHF and DSC coverage • Check whether options B and C are recognized GMDSS sea area terms or just general descriptions • Confirm whether Sea area A2 requires MF (medium frequency) DSC coverage beyond VHF, and see if that matches the situation in the question
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