Q Code Master
Q Code Master is the fastest, easiest-to-use Q Code reference ever designed.
What are Q Codes?
Q Codes are special codes used by amateur radio operators to convey complex information as quickly as possible.
Each code is made up of three letters and always starts with the letter 'Q'.
For example, when transmitted in the form of a question, QRL means "Are you busy?", QRN means "Are you troubled by static?" and QSS means "What working frequency will you use?"