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, including those used on nets and repeaters, is available from AC6V.
||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 static.
||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 amateurs.
||I am listening on ___ kHz.
||Change to transmission on another frequency (or to ___ kHz).
||What is your location?
My location is ____.