| Signal | Used As a Question | Used As a Statement |
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| QRG | What is my (his) frequency? | Your (His) frequency is ------ |
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| QRH | Does my frequency vary? | Your frequency varies |
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| QRI | How is the tone of my transmission? | Your tone is 1 (good) 2 (variable) 3 (bad) |
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| QRJ | Are you receiving me badly? Are my signals weak? | I cannot receive you. I receive you badly |
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| QRK | What is the readability of my (his) signals? | Your (His) readability is (1)unreadable to (5)perfect |
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| QRL | Is this frequency busy? | This frequency is in use |
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| QRM | Are you being interfered with? | I am interfered with |
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| QRN | Are you troubled by static? | I am being troubled with static |
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| QRO | Must I increase power? | I increase power |
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| QRP | Can I decrease power? | I decrease power |
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| QRQ | Shall I send faster? | Send faster ------- WPM |
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| QRS | Shall I send slower? | Send slower ------- WPM |
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| QRT | Shall I stop sending? | Stop sending |
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| QRU | Have you anything for me? | I have nothing for you |
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| QRV | Are you ready? | I am ready |
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| QRX | When will you call me again? | I will call you again at ------ |
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| QRZ | Who is calling me? | You are being called by ---- |
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| QSA | What is the strength of my (his) signals? | Your (His) strength is (1)barely perceptible - (5)very good |
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| QSB | Are my signals fading? | Your signals are fading |
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| QSL | Can you acknowledge receipt? | I acknowledge receipt |
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| QSO | Can you communicate with -------? | I can communicate with ------- |
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| QSP | Will you relay to -------? | I will relay to ------- |
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| QST | | Calling all radio amateurs |
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| QSV | Shall I send a series of V's? | Send a series of V's |
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| QSX | Will you listen to ------- on --------- kHz? | I am listening to ------- on ----------- |
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| QSY | Shall I change frequency? | Change frequency to ---------- |
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| QSZ | Shall I send each word twice? | Send each word twice |
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| QTH | What is your location? | My location is ----- |
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| QTR | What is the time? | The time is --------- |
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