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Remember to fill in the North point on your sketch, as it is useless without it. Leave a margin of about an inch all round your sketch and state the scale that you have made your sketch, _e. g._, two inches to the mile.
[Ill.u.s.tration: CONVENTIONAL SIGNS ETC]
SIGNALLING
CONTINENTAL
Used on Submarine Cables, Wireless and in Foreign Countries
A .- B -...
C -.-.
D -..
E .
F ..-.
G --.
H ....
I ..
J .--- K -.- L .-..
M -- N -.
O --- P .--.
Q --.- R .-.
S ...
T - U ..- V ...- W .-- X -..- Y -.-- Z --..
1 .---- 2 ..--- 3 ...-- 4 ....- 5 .....
6 -....
7 --...
8 ---..
9 ----.
0 -----
Period ......
Comma .-.-.- Interrogation ..--..
Colon ---...
Semi-colon -.-.-.
Quotation Marks .-..-.
The letter A is used for the word "Error"
" " K " " " " " "Negative"
" " L " " " " " "Preparatory"
" " N " " " " " "Annulling"
" " O " " " " " "Interrogatory"
" " P " " " " " "Affirmative"
" " R " " " " " "Acknowledgment"
The Morse Code of Signals is not hard to learn but it requires much practice to "receive" even when the message is sent slowly. The old-fas.h.i.+oned instruments were fitted with a ribbon on which the dots and dashes were recorded, but all modern operators depend on the ear.
The code is as follows:
[Ill.u.s.tration: The American Morse Telegraph Alphabet]
A .- B -...
C ...
D -..
E .
F .-.
G --.
H ....
I ..
J -.-.
K -.- L - M -- N -.
O . .
P .....
Q ..-.
R ...
S ...
T - U ..- V ...- W .-- X .-..
Y .. ..
Z ... .
NUMERALS
1.--.
2..-..
3...-.
4....- 5 --- 6......
7 --..
8 -....
9 -..- 0 -- [1 long dash, not 2 regular dashes]
[Ill.u.s.tration: NUMERALS]
_Punctuation_
Comma, . --. -- Semi-colon, Si Colon, Ko Period, .. -- --..
Interrogation, --.. --.
Quotation, Qn Paragraph, -- -- -- -- Exclamation, -- -- -- Parenthesis, Pn Brackets, Bn Dollar mark, Sx Dash, Dx Hyphen, Hx Underline, Ux
_Signals_
4. Start me.
5. Have you anything for me?
9. Train order (or important military message)--give away.
13. Do you understand?
