Below is a short list of commonly used Q Codes.
| QRL | Busy (Stand by) |
| QRM | Man made noise / adjacent channel interference |
| QRN | Static noise |
| QRO | Increase Power |
| QRP | Reduce Power (Or operating on low power such as under 10w) |
| QRT | Shut Down / Clear |
| QRZ | Who is calling me? |
| QSB | Receiving poorly / Signal fading |
| QSL | Confirmation (Often refers to confirmation cards exchanged by hams) |
| QSO | Your over (Conversation – not to be confused with ‘Over’ used at the end of each transmission) |
| QSX | Standing by on the other side. |
| QSY | Move to another frequency |
| QTH | Address / Location |
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