Hams use three-letter Q signals on every mode and even in face-to-face conversation. Here are the Q signals most commonly used in day-to-day operation. Each signal can be a question or an answer, as shown in the Meaning column. A complete list of ham radio Q signals.
Is the frequency busy?
The frequency is busy. Please do not interfere.
Abbreviation for interference from other signals.
Abbreviation for interference from natural or human-made
Shall I increase power?
Shall I decrease power?
Shall I send faster?
Send faster (__words per minute [wpm]).
Shall I send more slowly?
Send more slowly (__wpm).
Shall I stop sending or transmitting?
Stop sending or transmitting.
Have you anything more for me?
I have nothing more for you.
Are you ready?
I am ready.
Who is calling me?
Abbreviation for signal fading.
Did you receive and understand?
Received and understood.
Abbreviation for a contact.
General call preceding a message addressed to all
I am listening on ___ kHz.
Change to transmission on another frequency (or to ___