In order to increase the safety of life at sea, all stations must observe a 'silence period' to maintain a watch for distress calls on the international distress frequencies, 2182 kHz on S.S.B. and channel 16 on V.H.F. radio-telephone.
Ukuze wandise ukhuseleko lobomi elwandle, zonke izitishi mazijongwe okanye ziqwalaselwe ngexesha elithe cwaka ukugcina ujonge izimemezo ezihluphayo kwiqhagamshelwamo lwelizwe oluhluphayo, 2182 kHz ku- S.S.B.kwaye isitishi seshumi elinesithandathu kuV.H.F.unomathotholo wemfono-mfono.