3A5 B
 A vessel is on a coastwise voyage that results in a distance off shore of 10 to 40 nm and therefore:
A. The vessel  must be able to communicate with a coast station on Ch-16 to be within Sea Area A-1.
B. To be within Sea Area A-1 the vessel must continuously be within range of a coast station with VHF-DSC capability.
C. The vessel will always be in Sea Area A-1because all coastal voyages have A-1 DSC coverage.
D. To be within Sea Area A-1 the vessel must continuously be within range of a coast station with MF-DSC capability.
