English Dictionary

call sign

noun

(broadcasting) A combination of letters and numbers used to identify a radio or television station.

The pilot used his call sign to identify himself to air traffic control.

意味（1）

(broadcasting) A combination of letters and numbers used to identify a radio or television station.

意味（2）

(military) Any combination of characters or pronounceable words, which identifies a communication facility, a command, an authority, an activity, or a unit; used primarily for establishing and maintaining communications. Also called CS.