CONVENTIONAL SIGNALS.
End of wordsee instructions.
End of messagesee instructions.
Errorsee instructions.
Repeat last wordC, 'end of word', once.
Repeat last messageC, 'end of word', 3 times.
Use paper and pencil P, 'end of word', twice.
ABBREVIATIONS.
A"endofword"after
B"""before
C"""can
H"""have
N"""not
R"""are
T"""the
U"""you
UR"""your
W"""word
WI"""with
Y"""yes
PG"""permission granted
NG"""permission not granted
XX"""numerals follow

SUMMARY OF SIGNALS, ARMY AND NAVY ALPHABET.