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Morse operator closeup
Solve the Mystery of STENDEC
Tapping into Morse Code

Morse code is an international language for transmitting messages by wire or radio using signals whose tapped duration is short (dots) or long (dashes). It was invented in the mid-19th-century by the artist and inventor Samuel F.B. Morse (1791-1872) for use on another of his inventions, the telegraph. Dots and dashes are used to represent letters, numbers, and punctuation, as such:

Alphabet

Numbers

Miscellaneous
.-
A
.---
J
...
S
.----
1
--..--
comma
-...
B
-.-
K
-
T
..---
2
---...
colon
-.-.
C
.-..
L
..-
U
...--
3
-.-.-.
semicolon
-..
D
--
M
...-
V
....-
4
.-.-.-
period
.
E
-.
N
.--
W
.....
5
..--..
question
..-.
F
---
O
-..-
X
-....
6
........
error
--.
G
.--.
P
-.--
Y
--...
7



....
H
--.-
Q
--..
Z
---..
8



..
I
.-.
R




----.
9















-----
0




To see whatever you type in English translated into Morse code—or whatever you type in Morse code translated into English words—click here.

        STENDEC Theories
        Tapping into Morse Code
        1947 Official Accident Report
        Readers' Theories


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