The pattern you described consists of three short dots (s), three long dashes (—), and then three short dots again. In Morse code, this sequence translates to:
- Three short dots (•••) = "S"
- Three long dashes (---) = "O"
- Three short dots (•••) = "S"
So, the complete message "SOS" is being repeatedly sent. The SOS signal is an internationally recognized distress signal.