K4JWM
Mobile

Amateur Radio


Q-Codes - Amateur Radio
Command Description Usage
QRG Exact frequency HE TX ON QRG 14205 kHz
QRI Tone (T in the RST code) UR QRI 9
QRK Intelligibility (R in the RST code) UR QRK 5
QRL This frequency is busy. QRL? Used almost exclusively with Morse code, usually before transmitting on a new frequency
QRM Man-made interference PSE AGN HR QRM
QRN Natural interference, e.g. static crashes BAND NOISY TODAY LOTS OF QRN
QRO Increase power NEED QRO WHEN PROP POOR
QRP decrease power QRP TO 5 W
QRQ Send faster TIME SHORT PSE QRQ
QRR temporarily unavailable/away, please wait WILL BE QRR 30 MIN = THAT STN IS QRR NW
QRRR Distress Distress call recommended by ARRL
QRS Send slower PSE QRS NEW TO CW
QRT Stop sending ENJOYED TALKING 2 U = MUST QRT FER DINNER NW
QRU Have you anything for me? QRU? ABOUT TO QRT
QRV I am ready WL U BE QRV IN UPCOMING CONTEST?
QRX will call you again QRX 5 MIN
QRZ You are being called by ____. QRZ? (Only someone who has previously called should reply)
QSA Signal strength UR QSA 5
QSB Fading of signal THERE IS QSB ON UR SIG
QSD Your keying is defective QSD CK YR TX
QSK Break-in CQ DE W1AW W1AW QSK CQ DE (W1AW signalizing that callers can break in at any time)
QSL I Acknowledge receipt QSL UR LAST TX = PSE QSL VIA BURO (i.e. please send me a card confirming this contact).
QSM Repeat last message QRM DROWNED UR LAST MSG OUT = PSE QSM
QSN I heard you QSN YESTERDAY ON 7005 kHz
QSO A conversation TNX QSO 73
QSP Relay PSE QSP THIS MSG TO MY FRIEND
QST General call to all stations QST: QRG ALLOCS HV CHGD
QSX I am listening on … frequency QSX 14200 TO 14210 kHz
QSY Shift to transmit on PSE QSY UP 5 kHz
QTA Disregard last message QTA, DID NOT MEAN THAT
QTC Traffic STN WID EMRG QTC PSE GA
QTH Location QTH SOUTH PARK CO
QTR Exact time QTR 2000Z


Q-Codes - 1912
Code Description Usage
QRA What ship or coast station is that? This is __.
QRB What is your distance? My distance is __.
QRC What is your true bearing? My true bearing is __ degrees.
QRD Where are you bound for? I am bound for __.
QRF Where are you bound from? I am bound from __.
QRG What line do you belong to? I belong to the __ Line.
QRH What is your wave length in meters? My wave length is __ meters.
QRJ How many words have you to send? I have __ words to send.
QRK How do you receive me? I am receiving well.
QRL Are you receiving badly? Shall I send 20 for adjustment? I am receiving badly. Send 20 for adjustment.
QRM Are you being interfered with? I am being interfered with.
QRN Are the atmospherics strong? Atmospherics are very strong.

First Twelve Q Codes Listed in the 1912 International Radiotelegraph Convention Regulations




Aviation



Q-Codes - Altimeter Settings
Code Description Usage
QFE Atmospheric pressure at airfield elevation Runway in use 22 Left, QFE 990
QNE Atmospheric pressure at sea level in the International Standard Atmosphere (1013.25 mbar)
QNH Atmospheric pressure at mean sea level Request QNH


Q-Codes - Radio Navigation
Code Description Usage
QDM Magnetic bearing to a station QDM QDM QDM (callsign) request QDM
QDR Magnetic bearing from a station
QFU Runway in use Runway 22 in use, QFU 22
QTE True bearing from a station
QUJ True bearing to a station


Q-Codes - Radio Procedures
Code Description Usage
QSY Free-call another frequency (not anymore official part of the standard phraseology, but still regularly heard) Golf Alpha Bravo QSY Doncaster 126.225

Although the majority of the Q codes have slipped out of common use, several remain part of the standard ICAO radiotelephony phraseology in aviation.

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