Q codes
Three letters that replace a whole sentence in telegraphy. With a question mark they are a question, without one a statement. The most common ones are used in voice operation too.
- QRA
- name of my station
- QRB
- distance between two stations
- QRG
- exact frequency
- QRL
- I am busy, the frequency is in use
- QRM
- interference from other transmitters
- QRN
- atmospheric noise, static crashes
- QRO
- increase power, high power
- QRP
- reduce power, operating with low power
- QRQ
- send faster
- QRS
- send more slowly
- QRT
- stop operating, closing down
- QRU
- I have nothing for you
- QRV
- I am ready
- QRX
- please wait
- QRZ
- Who is calling me?
- QSA
- signal strength, scale 1 to 5
- QSB
- varying signal strength, fading
- QSL
- acknowledge receipt, also the confirmation card
- QSO
- radio contact
- QSP
- relay a message
- QSY
- change frequency
- QTC
- I have a message
- QTH
- Location
- QTR
- exact time
Related
More sections in the glossary
Q codes Abbreviations in telegraphy RST report Phonetic alphabet Callsigns in Germany Law and administration Regulation and radio policy DARC, DOK and awards Portable programmes Repeater operation Modes Propagation Shack technology