Koodhka Morse, xarafka "J" waxaa lagu matalaa taxanaha .--- Tani waxay u tarjuntay:
Sida kale, waxaa ku jira calaamad gaaban (dhibic) oo raacday saddex calaamadood dheer (xariiq). Isku-darkaasi waxa loo isticmaalaa Koodhka Morse si loo matalo xarafka "J" ee labadaba telegraphy iyo isgaarsiinta raadiyaha.