These regulations introduced three new PERSON@1 code sequences , including the SOS distress signal : PERSON@2 -LRB- `` Cease-sending signal '' -RRB- , consisting of six dahs -LRB- -- -- -- -- -- -- -RRB- , sent by shore stations to tell other local stations to stop transmitting .

They introduced three new PERSON@1 code sequences , including the SOS distress signal : PERSON@2 -LRB- `` Cease-sending signal '' -RRB- , consisting of six dahs -LRB- -- -- -- -- -- -- -RRB- . The signal was sent by shore stations to tell other local stations to stop transmitting .
