What does NAVTEX provide and on what frequency does it operate?

A. NAVTEX is a VHF system broadcasting on Ch 72 every 4 hours

B. Automatic broadcast of navigational warnings, weather forecasts, and SAR information on 518 kHz (international, English) and 490 kHz (national, local language) — received and printed/displayed by a dedicated NAVTEX receiver

C. NAVTEX requires a satellite uplink and is only available more than 200nm offshore

D. NAVTEX is used only by commercial vessels — leisure yachts use the Shipping Forecast instead

A. To operate the radar system remotely

B. To broadcast weather forecasts to other vessels

C. To make telephone calls from the vessel to shore

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

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

B. A GPS waypoint identifier used in coastal navigation

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

D. A vessel survey certificate number required by the MCA