Q code is a standardized set of three-letter codes used in radio communication to convey specific information quickly and efficiently. These codes help reduce misunderstandings and save time, especially in situations where clarity is crucial, such as in aviation or maritime communication. Each Q code represents a particular question or statement, making it easier for operators to exchange information. Originally developed for amateur radio operators, Q codes have been widely adopted across various communication fields. For example, the Q code "QTH" means "location," while "QRZ" indicates a call for someone to identify themselves. This system enhances communication effectiveness among users.