QSL. QRM. QRZ. DX. 73. “Ham.” You use these terms on the amateur bands. Do you know their origins? Before they became part of everyday amateur radio practice, Q codes were standardized for international radiotelegraph procedure, maritime coordination, and spectrum discipline. Numerical telegraph shorthand such as 73 evolved along a separate path. Even the word “ham” began as criticism before it became a badge of operator identity. Origins of Ham Radio Language: The History of Q Codes and Amateur Radio Terminology examines how selected Q codes, telegraph abbreviations, and operating jargon moved from institutional regulation into voluntary ham radio culture. This is not an exhaustive catalog of every term ever used. It is a focused study of the Q codes and operating vocabulary that shaped major technical, regulatory, and cultural developments in amateur radio history. Inside: • The international standardization of the Q-code system • Why some Q codes endured while others disappeared • The telegraph roots of 73 and related number shorthand • The transformation of “ham” from insult to identity • The rise of DX terminology, contest language, and traffic procedures • How amateur radio terminology reflects structural change in radio If you speak this language, this is its history. A concise historical reference for serious operators, collectors, and students of amateur radio. A professional addition to any well-equipped ham shack library.