Amateur Radio operators use a subset of the full international Q-Code and they use it extensively even today. In many countries, learning this code is Mandatory to obtain a ham radio license. The exact subset used for Ham Radio may slightly vary from country to country. The most common codes given Below.
| QCodes | Question | Answer |
|---|---|---|
| QRA | What is the name (or call sign) of your station? | The name (or call sign) of my station is ... |
| QRB | How far are you from my station? | The distance between our stations is ... nautical miles (or km). |
| QRG | Will you tell me my exact frequency (or that of ...)? | Your exact frequency (or that of ... ) is ... KHz (or MHz). |
| QRH | Does my frequency vary? | Your frequency varies. |
| QRI | How is the tone of my transmission? | The tone of your transmission is (1: good, 2: variable 3: bad) |
| QRK | What is the readability of my signals (or those of ...)? | The readability of your signals (or those of ...) is ... (1: bad .. 5: excellent). |
| QRL | Are you busy? | I am busy. (or I am busy with ... ) Please do not interfere. |
| QRM | Do you have interference? | I have interference. |
| QRN | Are you troubled by static noise? | I am troubled by static noise. |
| QRO | Shall I increase transmit power? | Please increase transmit power. |
| QRP | Shall I decrease transmit power? | Please decrease transmit power. |
| QRQ | Shall I send faster? | Please send faster (... words per minute). |
| QRS | Shall I send more slowly? | Please send more slowly (... words per minute). |
| QRT | Shall I cease or suspend operation? | I am suspending operation. |
| QRU | Have you anything for me? | I have nothing for you. |
| QRV | Are you ready? | I am ready. |
| QRX | Shall I standby? / When will you call me again? | Please standby. / I will call you again at ... (hours) on ... KHz (or MHz). |
| QRZ | Who is calling me? | You are being called by ... (on ... KHz (or MHz)). |
| QSA | What is the strength of my signals (or those of ... )? | The strength of your signals (or those of ...) is ... (1: very weak .. 5: very strong). |
| QSB | Are my signals fading? | Your signals are fading. |
| QSD | Is my keying defective? | Your keying is defective. |
| QSK | Can you hear me between your signals (while transmitting), and if so can I break in on your transmission? | I can hear you between my signals (while transmitting); break in on my transmission. |
| QSL | Can you acknowledge receipt? | I am acknowledging receipt. |
| QSM | Shall I repeat the last telegram (message) which I sent you, or some previous telegram (message)? | Repeat the last telegram (message) which you sent me (or telegram(s) (message(s)) numbers(s) ...). |
| QSN | Did you hear me (or ...) on ... KHz (or MHz)? | I did hear you (or ...) on ... KHz (or MHz). |
| QSO | Can you communicate with ... direct or by relay? | I can communicate with ... direct (or by relay through ...). |
| QSP | Will you relay a message to ...? | I will relay a message to ... . |
| QSS | What working frequency will you use? | I will use ... kHz (or MHz). |
| QSU | Shall I send or reply on this frequency (or on ... KHz (or MHz))? | Please send or reply on this frequency (or on ... kHz (or MHz)). |
| QSV | Shall I send a series of "V" on this frequency (or on ... KHz (or MHz))? | Please send a series of "V" on this frequency (or on ... kHz (or MHz)). |
| QSX | Will you listen to ... on ... kHz (or MHz)? | I am listening to ... on ... KHz (or MHz). |
| QSY | Shall I change transmission frequency (to ... KHz (or MHz))? | Please change transmission frequency (to ... KHz (or MHz)). |
| QSZ | Shall I send each word or group more than once? | Send each word or group twice (or ... times). |
| QTC | How many telegrams (messages) have you to send? | I have ... telegrams (messages) for you (or for ...). |
| QTH | What is your position in latitude and longitude (or according to any other indication)? | My position is ... latitude, ... longitude. |
| QTR | What is the correct time? | The correct time is ... hours. |