- - - . . .
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 . - . - .

Visual Signaling in General.

21. Methods of visual signaling are divided as follows:

(a) By flag, torch, hand lantern, or beam of searchlight (without
shutter). (General Service Code).

(b) By heliograph, flash lantern, or searchlight (with shutter).
(General Service Code).

(c) By Ardois. (General Service Code).

(d) By hand flags or by stationary semaphore. (Two-arm semaphore
Code.)

(e) By preconcerted signals with Coston lights, rockets, bombs,
Very pistols, small arms, guns, etc.

(f) By flag signals by permanent hoists. (International Code.)

22. The following conventional signals, with exceptions noted,
will be used in the first four classes.

_Exceptions_
Ardois and semaphore.
End of word. Interval.
End of sentence. Double interval.
End of message. Triple interval.
Signal separating
preamble from
address; address
from text; text
from signature. - . . . - Double interval,
signature preceded
also by "Sig."
Interval.
Acknowledgement. R.
Error. . . . . . . . . A.
Negative. K.
Preparatory. L.
Annulling. N.
Affirmative. P.
Interrogatory. . . - - . . O.
Repeat after word. Interrogatory. A
(word).
Repeat last message. Interrogatory
three times
Send faster. QRQ
Send slower. QRS
Cease sending QRT
Wait a moment . - . . . None.
Execute. IX, IX
Move to your right. MR
Move to your left. ML
Move up. MU
Move down. MD
Finished . . . - . - None.

Visual Signaling: By Flag (Wig-Wag), Torch, Hand Lanter