The Q-code system

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The Q-code system is an internationally agreed system of abbreviations. The more common abbreviations used in amateur radio are listed here. Knowledge of meaning of these codes is not part of the test although you will be expected to copy them if they do occur. If a Q-code is followed by a question mark then the abbreviation should be regarded as a question.

 

Example:

QTH is station location.

QTH? Means what is your station location.

 

QRA

Callsign of station

QRG

station frequency

QRK

readability on a scale of 1 to 5

QRM

interference on a scale of 1 to 5

QRN

impulsive interference on a scale of 1 to 5

QRO

higher power

QRP

lower power

QRQ

please send faster

QRS

please send slower

QRT

close down

QRX

please call me again

QRZ

please repeat your callsign

QSB

signal fading

QSL

acknowledgement of message receipt

QSO

a communication

QSY

change frequency

QTH

station location