| CW Q-Codes |
| CQ = General Call QRG = Tell me exact frequency QRH = Does frequency vary? QRI = How is tone of transmission QRK = Readability of signal is QRL = Are you busy? I am busy QRM = Manmade interference QRN = Static QRO = Increase power QRP = Decrease power QRQ = Send faster QRS = Send slower QRT = Stop sending QRU = Do you have anything for me? QRV = Are you ready? I am ready QRW = I am calling on ... frequency QRX = What is the next schedule? QRZ = Who is calling? |
| QSA = What is the signal strength? QSB = Are my signals fading? QSD = Is my keying defective? QSG = Send ... message at one time QSL = Acknowledge receipt QSM = Repeat last message QSO = Communicate direct or via relay QSP = Will you relay to ... QSV = Send series of V's QSW = Will you send on this frequency? QSX = Shall I switch to another frequency? QSY = Switching frequencies QSZ = Send each group twice QTA = Cancel message QTB = Do you agree with number of words? QTC = How many messages do you have to send? QTH = Location QTR = Exact time |