call sign
UNIQUE DESIGNATION FOR A TRANSMITTING STATION
Television call sign; Call letters; Radio call sign; Call signs; Callsign (radio); Call Letters; Amateur call letters; Call letter; Australian callsigns; W (call sign); Ham prefix; Broadcast call sign; Call Sign; Callsigns; Call-sign; International call sign; International call signs; Call signal; International callsign; Call name (call letters); Callsign
(also call signal)
¦ noun a message, code, or tune that is broadcast by radio to identify the broadcaster or transmitter.