AA - All after
AB - All before
ABT - About
ADR - Address
AGN - Again
AM - Amplitude Modulation
ANT - Antenna
BCI - Broadcast Interference
BCL - Broadcast Listener
BK - Break, Break in
BN - All between; Been
BT - (=)  (break)
BUG - Semi-Automatic key
B4 - Before
C - Yes
CFM - Confirm; I confirm
CK - Ckeck
CL - Clear. I am not taking any more calls.
CLD - Called
CLG - Calling
CQ - Calling any station
CUD - Could
CUL - See You later
CW - Continuous wave
DE - From
DLD - Delivered
DLVD - Delivered
DN - Down
DR - Dear
DX - Distance, foreign countries
ES - And
FB - Fine business, excellent
FER - For
FM - Frequency Modulation
GA - Go ahead (or resume sending)
GB - Good by
GBA - Give better address
GE - Good Evening
GG - Going
GM - Good morning
GN - Good night
GND - Ground
GUD - Good
HH - Error in sending
HI - The telegraphic laugh; High
HQ - Headquarters
HR - Here; Hear
HV - Have
HW - How
LID - A poor operator
LTR - Lette
MA - Millamperes
MILS - Millamperes
MSG - Message; Prefix to radiogram
N - No
NCS - Net Control Station
ND - Nothing Doing
NIL - Nothing;
I have nothing for you
NM - No more
NR - Number
NW - Now; I resume transmission
OB - Old boy
OC - Old chap
OM - Old man
OP - Operator
OPR - Operator
OT - Old timer; Old top

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