Signals And Codes





1. GENERAL SERVICE CODE. (INTERNATIONAL MORSE CODE.)



Used for visual (except semaphore) and sound signaling, radio

telegraphy, on cables using siphon recorders, in communication with the

Navy, and in intra-field artillery buzzer communication.



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 - - - - -





PUNCTUATION



Period . . . . . .

Comma . - . - . -

Interrogation . . - - . .

Hyphen or dash - . . . . -

Parentheses

(before and after the words) - . - - . -

Quotation mark

(beginning and ending) . - . . - .

Exclamation - - . . - -

Apostrophe . - - - - .

Semicolon - . - . - .

Colon - - - . . .

Bar indicating fraction - . . - .

Underline (before and after

the word or words it is

wished to underline) . . - - . -

Double dash (between preamble and address,

between address and body of message, between

body of message and signature, and

immediately before a fraction) - . . . -

Cross . - . - .



Note.--Numerals and punctuations must be spelled out in the ardois, as

they require more than four elements, which is the limit of the ardois

keyboard.



The position is with the flag or other appliance held vertically, the

signalman directly facing station with which it is desired to

communicate. The dot is to the right of sender, embracing an arc of

90 deg., starting with the vertical and returning to it. The dash is a

similar motion to left. Front is downward directly in front and

instantly returned to vertical; it indicates a pause or conclusion.





For communication between the firing line and the reserve or commander

in rear, the subjoined signals (Signal Corps codes) are prescribed and

should be memorized. In transmission, their concealment from the enemy's

view should be insured. In the absence of signal flags, the head dress

or other substitute may be used.



Letter of If signaled from the If signaled from the

Alphabet rear to the firing line firing line to the rear



A M Ammunition going forward Ammunition required





C C C Charge (mandatory at all Am about to charge if no

times) instructions to the

contrary



C F Cease firing Cease firing



D T Double time or rush Double time or rush or

hurry



F Commence firing Commence firing



F L Artillery fire is causing Artillery fire is causing

us losses us losses



G Move forward Preparing to move forward



H H H Halt Halt



K Negative Negative



L T Left Left



O What is the (R. N., etc.?) What is the (R. N., etc.?)



(Ardois and Interrogatory Interrogatory

semaphore

only)



. . - - . . What is the (R. N., etc.?) What is the (R. N., etc.?)



(All methods Interrogatory Interrogatory

but ardois

and semaphore)



P Affirmative Affirmative



R Acknowledgment Acknowledgment



R N Range Range



R T Right Right



S S S Support going forward Support needed



T Target Target





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