Morse Code

What do all those dots and dashes mean? The invention of the telegraph was followed by the invention of the Morse code. Referred to in the Navy as the dot-dash system, each letter and number is represented by a particular arrangement of dots and dashes. Morse code is usable in sound signaling (radio, sound and whistle) and visual signaling (lights and flags).

Letter Code Letter Code Number Code
A .-         N -.          0 -----
B -...       O ---        1 .----
C -.-.       P .--.       2 ..---
D -..        Q --.-       3 ...--
E .           R .-.        4 ....-
F ..-.       S ...         5 .....
G --.        T -           6 -....
H ....       U ..-        7 --...
I ..           V ...-       8 ---..
J .---       W .--        9 ----.
K -.-        X -..-
L .-..       Y -.--
M --         Z --..