אות O בקוד מורס
A cikin Lambar Sadarwa ta Morse, harafin "O" yana wakiltar jeri --- Wannan yana nufin:
Dogayen dogo guda uku (---).
A cikin kalmomi masu sauƙi, yana ƙunshe da dogayen siginar guda uku (dogo). Wannan haɗin yana wakiltar harafin "O" a cikin Lambar Sadarwa ta Morse a cikin tafiye-tafiye da sadarwar rediyo.
