What is GMDSS Sea Area A1 and what radio equipment is required in it?

A. A1 applies only to commercial vessels over 300 GT — leisure craft are exempt

B. A1 is the area beyond 200nm from any coast — requires full GMDSS including MF/HF and satellite

C. Sea Area A1 is defined as within 3nm of the coast — the inshore zone

D. Sea Area A1 covers VHF coverage of at least one Coastguard DSC station — within approximately 20-50nm of shore. Equipment: VHF DSC radio with Ch 70 controller and Ch 16 watch, plus either an EPIRB or means of locating distress

A. To send a digitally coded distress alert containing the vessel's MMSI and position automatically to all DSC-equipped stations and the Coastguard

B. To broadcast weather forecasts to other vessels

C. To make telephone calls from the vessel to shore

D. To operate the radar system remotely

A. A GPS waypoint identifier used in coastal navigation

B. Maritime Mobile Service Identity — a unique 9-digit number identifying the vessel; without it a DSC distress alert cannot identify the vessel to rescuers

C. A VHF channel number allocated by Ofcom for distress use only

D. A vessel survey certificate number required by the MCA