Lookup Q-Codes

ACP-131 Q Signals

Grouped by Aeronautical, Marine and General use.

Amateur Radio Q Signals

Q Signals adapted for use in the Amateur Radio Service

FSD-218 QN Signals

ARRL QN Signals For CW Net Use

The Q-code

A standardized collection of three-letter codes all of which start with the letter "Q". It is an operating signal initially developed for commercial radiotelegraph communication and later adopted by other radio services, especially amateur radio.