radio beacon

English Thesaurus

1. a radio station that broadcasts a directional signal for navigational purposes (noun.artifact)

hypernym	:	radio station,
definition	:	station for the production and transmission of AM or FM radio broadcasts (noun.artifact)

2. a characteristic signal emitted by a transmitter used for navigation (noun.communication)

hypernym	:	sign, signal, signaling,
definition	:	any nonverbal action or gesture that encodes a message (noun.communication)