The composition of the radio equipment of vessels:
- For the area A1 (. Within the range of the on-phone at least one VHF coast station in which continuous for distress alert using DSC) of the ship radio equipment should include: VHF with DSC, NAVTEX receiver, EPIRB, Radar Transpoder, handheld (portable) VHF radio.
- For the area A2 (excluding sea area A1, within the range of the on-phone at least one MF coast station in which continuous distress alert using DSC (range of 100-150 miles)) of the ship radio equipment should include: VHF with DSC, MF radio telephone with DSC, NAVTEX receiver, receiver EGC or HF IBM, EPIRB, Radar Transpoder, handheld (portable) VHF radio.
- For A3 area (excluding sea areas A1 and A2, within the limits of the zone of geostationary satellites INMARSAT) of the ship radio equipment should include: VHF with DSC, MF radio telephone with DSC, NAVTEX receiver EGC or HF receiver IBM, Inmarsat- C or A / B, EPIRB, SART, handheld (portable) VHF radio,
or: VHF with DSC, MF / HF radio telephone with DSC and telex, NAVTEX receiver, receiver HF IBM, EPIRB, SART, VHF Handheld (portable) radio station.
-For A4 District (outside sea areas A1, A2 and A3) of the mandatory ship radio equipment includes: VHF radio with DSC, MF / HF radio telephone with DSC and telex, receiver NAVTEX receiver HF IBM, EPIRB, SART, Handheld ( portable), VHF radio.
