call sign(Noun)

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

call sign(Noun)

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. (JP 1-02 Department of Defense Dictionary of Military and Associated Terms.)

call sign

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. See also collective call sign; indefinite call sign; international call sign; net call sign; tactical call sign; visual call sign; voice call sign.