RADIOTELEGRAPH OPERATING SIGNALS

SIGNAL MEANING

AA = All after
AB = All before
ABD = Repeat the figure in the abbreviated form
ADS = Address
AR = End of transmission
AS = Waiting period
BK = Signal used to interrupt a transmission in progress
BN = All between …to …
BQ = A reply to an RQ
C = Yes
CFM = Confirm
CL = I am closing my station
COL = Collate
CP = General call to two or more specified stations
CQ = General call to all stations
CS = Call signs (used to request to call sign)
DB = I cannot give you a bearing; you are not in the calibrated
sector of this station.
DC = the minimum of your signal is suitable for the bearing.
DE = Used to separate the call sign of the station called from
the call sign of the calling station.
DF = Your bearing at … (time) .. was … degrees, in the doubtful
sector of this station, with a possible error of … degrees.
DG = Please advise me if you note an error of the bearing given
DI = Bearing doubtful in consequence of the bad quality of your signal
DJ = Bearing doubtful. Ask for another bearing later
DP = Possible error of bearing any amount to … degrees
DS = Adjust your transmitter, the minimum of your signal is too
broad
DT = I cannot furnish you with a bearing; the minimum of
your signal is too broad
DY = This station is not able to determine the sense of the
bearing. What is your approximate direction relative to this
station?
DZ = Your bearing is reciprocal
ER = Here …
ETA = Estimated time of arrival
ITP = The punctuation counts.
JM = Make a series of dashes if I may transmit. Make a series of dots
To stop my transmission
K = Invitation to transmit
MN = Minute
MSG = Prefix indicating a message to air from the master of the ship
Concerning its operation or navigation
N = No
NIL = I have nothing to send you
NW = Now
OK = We agree (or it is correct)
P = Prefix indicating a private radio telegram
PTR = Used by a coast station to request the position an next
port of call or a mobile station
PBL = Preamble (used after a question mark to request a repetition
R = Received
REF = Reference to …
RPT = Repeat
RQ = Indication of a request
SIG = Signature
SOS = Distress signal
SS = Indicator preceding the name of a ship station
SVC = Prefix indicating a service telegram
SYS = Refer to your service telegram
TFC = Traffic
TR = Used a prefix to indicate reply to PTR
TTT = Safety signals
TU = Thank you
TXT = Text
VA = End of work
W = Words
WA = Word after
WB = Word before
XXX = Urgency signal