MORSE CODE
distress call SOS: g 10/10 28
phased out worldwide: g98 9/8 30; g97 8/8 29
successor: g99 8/8 29
usefulness despite replacements: g89 11/22 28
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MORSE CODE
distress call SOS: g 10/10 28
phased out worldwide: g98 9/8 30; g97 8/8 29
successor: g99 8/8 29
usefulness despite replacements: g89 11/22 28