Page 243 - Electromechanical Devices and Components Illustrated Sourcebook
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Chapter 11 Acoustic Devices 205
Alphabet Numbers
A 0
B 1
C 2
D 3
E 4
F 5
G 6
H 7
I 8
J 9
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
1. A dash is equal to three dots.
2. The space between parts of the same letter is equal to one dot.
3. The space between two letters is equal to three dots.
4. The space between two words is equal to five dots.
Figure 11-47 Morse Code
Key Key
Line
Send/Receive Send/Receive
Switch Switch
Sounder Sounder
Battery
Earth Ground
Earth Ground
Figure 11-48 Basic Telegraph System