Operating signals

Operating signals

Operating signals are one type of brevity code wherein the signals are designed and used primarily to support the communication of the communications (radio and telegraph) operators among themselves with respect to communications operations, instead of communicating abbreviated messages about non-communications related activities.

• 92 Code Western Union telegraph brevity codes
• Q code - initially developed for commercial radiotelegraph communication, and later adopted by other radio services, especially amateur radio. Used since circa 1909.
• R code - published by the British Post Office in 1908 for use only by British coastal wireless stations and ships licensed by the Postmaster General.
• S code - published by the British Post Office in 1908 for use only by British coastal wireless stations and ships licensed by the Postmaster General.
• X code - used by European military services as a wireless telegraphy code in the 1930s and 1940s
• Z code - also used in the early days of radiotelegraph communication.

See also

• Brevity code
• SINPO code - code used to describe the quality of radio transmissions, especially in reception reports written by shortwave listeners
• R-S-T system- information about the quality of a radio signal being received. Used by amateur radio operators, shortwave listeners.
• Morse code abbreviations
• Telegraphese

External links

• Nonsecret Code: An Overview of Early Telegraph Codes