| Abbreviation | Definition |
|---|---|
| QOF | What is the commercial quality of my signals? |
| QOG? | How many tapes have you to send? |
| QOH | Shall I send a phasing signal for .... seconds? |
| QOI? | Shall I send my tape? |
| QOK | Have you received the signals of an emergency position-indicating radiobeacon on ... kHz (or MHz)? |
| QOM | On what frequencies can your vessel be reached by a selective call? |
| QON | Can you send on any working frequency? |
| QPM | Is my signal purr modulated? |
| QRA | What is the name of your station? |
| QRC | Are you a rag chewer? |
| QRG | Will you tell me my exact frequency (or that of ________)? |
| QRH | Does my frequency vary? |
| QRI | How is the tone of my transmission? |
| QRK | Question: How do you read my radio signal? |
| QRK? | What is the intelligibility of my signals? |
| QRK2 | The intelligibility of your signals is Poor |
| QRK3 | The intelligibility of your signals is Fair |
| QRK4 | The intelligibility of your signals is Good |
| QRK5 | The intelligibility of your signals is Excellent |
| QRM | Is my transmission being interfered with? |