Listener's Guide

Miscellaneous Abbreviations and Signals

Used over HF radio circuits to assist mobile communications, a few have been adopted by radio amateurs.

Miscellaneous Abbreviations and Signals
AAAll after... (used after a question mark in radiotelegraphy or after RQ in radiotelephony (in case of language difficulties) or after RPT, to request a repetition).
ABAll before... (used after a question mark in radiotelegraphy or after RQ in radiotelephony (in case of language difficulties) or after RPT, to request a repetition).
ADSAddress (used after a question mark in radiotelegraphy or after RQ in radiotelephony (in case of language difficulties) or after RPT, to request a repetition).
AREnd of transmission.
ASWaiting period.
BKSignal used to interrupt a transmission in progress.
BNAll between... and... (used after a question mark in radiotelegraphy or after RQ in radiotelephony (in case of language difficulties) or after RPT, to request a repetition).
BQA reply to an RQ.
BTSignal to mark the separation between different parts of the same transmission.
CYes.
CFMConfirm (or I confirm).
CLI am closing my station.
COLCollate (or I collate).
CORRECTIONCancel my last word or group. The correct word or group follows (used in radiotelephony, spoken as KOR-REK-SHUN).
CPGeneral call to two or more specified stations.
CQGeneral call to all stations.
CSCall sign (used to request a call sign).
DEFrom... (used to precede the name or other identification of the calling station).
DFYour bearing at... hours was... degrees, in the doubtful sector of this station, with a possible error of... degrees.
DOBearing doubtful. Ask for another bearing later (or at... hours).
DSCDigital selective calling.
EEast (cardinal point).
ETAEstimated time of arrival.
INTERCOInternational Code of Signals groups follow (used in radiotelephony, spoken as IN-TER-CO).
KInvitation to transmit.
KAStarting signal.
KTSNautical miles per hour (knots).
MINMinute (or Minutes).
MSGPrefix indicating a message to or from the master of a ship concerning its operation or navigation.
MSIMaritime safety information.
NNorth (cardinal point).
NBDPNarrow-band direct-printing telegraphy.
NILI have nothing to send to you.
NONo (negative).
NWNow.
NXNotice to Mariners (or Notice to Mariners follows).
OKWe agree (or It is correct).
OLOcean letter.
PPrefix indicating a private radiotelegram.
PBLPreamble (used after a question mark in radiotelegraphy or after RQ in radiotelephony (in case of language difficulties) or after RPT, to request a repetition).
PSEPlease.
RReceived.
RCCRescue coordination centre.
REFReference to ? (or Refer to ?).
RPTRepeat (or I repeat) (or Repeat ?).
RQIndication of a request.
SSouth (cardinal point).
SARSearch and Rescue.
SIGSignature (used after a question mark in radiotelegraphy or after RQ in radiotelephony (in case of language difficulties) or after RPT, to request a repetition).
SLTRadiomaritime Letter.
SVCPrefix indicating a service telegram.
SYSRefer to your service telegram.
TFCTraffic.
TRUsed by a land station to request the position and next port of call of a mobile station; used also as a prefix to the reply.
TUThank you.
TXTText (used after a question mark in radiotelegraphy or after RQ in radiotelephony (in case of language difficulties) or after RPT, to request a repetition).
VAEnd of work.
WWest (cardinal point).
WAWord after... (used after a question mark in radiotelegraphy or after RQ in radiotelephony (in case of language difficulties) or after RPT, to request a repetition).
WBWord before... (used after a question mark in radiotelegraphy or after RQ in radiotelephony (in case of language difficulties) or after RPT, to request a repetition).
WDWord(s) or Group(s).
WXWeather report (or Weather report follows).
XQPrefix used to indicate the transmission of a service note.
YZThe words which follow are in plain language.

So now you know. Good to see a list with such a long history also reflects the latest technology.