Morse code abbreviations

Raffaello Tesi

These abbreviations are typically used when transmitting in Morse code in order to diminish the number of characters sent. Some of them are in use also in normal amateur radio speech.

AA All after (used after question mark to request a repetition) OO Official observer
AB All before (similarly) OP Operator
ARRL American Radio Relay League OT Old timer
ABT About OTC Old timers club
ADR Address OOTC Old old timers club
AGN Again PSE Please
ANT Antenna PWR Power
ARND Around PX Prefix
BCI Broadcast interference QCWA Quarter Century Wireless Association
BK Break (to pause transmission of a message, say) R Are; received as transmitted (origin of “Roger”), or decimal point (depending on context)
BN All between RCVR Receiver (radio)
BTR Better RFI Radio Frequency Interference
BUG Semiautomatic mechanical key RIG Radio apparatus
B4 Before RPT Repeat or report (depending on context)
C Yes; correct RPRT Report
CBA Callbook address RST Signal report format (Readability-Signal Strength-Tone)
CFM Confirm RTTY Radioteletype
CK Check RX Receiver
CL Clear (I am closing my station) SAE Self-addressed envelope
CLG Calling SASE Self-addressed, stamped envelope
CQ Calling any station SED Said
CQD Original International Distress Call SEZ Says
CS Callsign SFR So far (proword)
CTL Control SIG Signal or signature
CUD Could SIGS Signals
CUL See you later SK Out (proword)
CUZ Because SKED Schedule
CW Continuous wave (i.e., radiotelgraph) SMS Short message service
CX Conditions SN Soon
DE From (or “this is”) SNR Signal-to-noise ratio
DN Down SRI Sorry
DR Dear SSB Single sideband
DSW Goodbye (Russian: до свидания [Do svidanya]) STN Station
DX Distance (sometimes refers to long distance contact), foreign countries T Zero
EMRG Emergency TEMP Temperature
ENUF Enough TFC Traffic
ES And TKS Thanks
FB Fine business (Analogous to “OK”) TMW Tomorrow
FCC Federal Communications Commission TNX Thanks
FER For TT That
FM From TU Thank you
FREQ Frequency TVI Television interference
FWD Forward TX Transmit, transmitter
GA Good afternoon or Go ahead (depending on context) TXT Text
GE Good evening U You
GG Going UR Your or You’re (depending on context)
GM Good morning URS Yours
GN Good night VX Voice; phone
GND Ground (ground potential) VY Very
GUD Good W Watts
GX Ground WA Word after
HI Laughter WB Word before
HR Here, hear WC Wilco
HV Have WDS Words
HW How WID With
II I say again WKD Worked
IMP Impedance WKG Working
KN Over WL Will
LID Poor operator WUD Would
MILS Milliamperes WTC Whats the craic? (Irish Language: [Conas atá tú?])
MNI Many WX Weather
MSG Message XCVR Transceiver
N No; nine XMTR Transmitter
NIL Nothing XYL Wife
NR Number YF Wife
NW Now YL Young lady (used for any female)
NX Noise; noisy ZX Zero beat
OB Old boy 73 Best regards
OC Old chap 88 Love and kisses
OM Old man (any male amateur radio operator is an OM)


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