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Beacons (Dcnspb)

Radio stations that broadcast a directional signal for navigational purposes. Or, towers with a light that give warning of shoals to passing ships. (Source: wordnetweb.princeton.edu)
Broader Term
Navigation devices (Dcnsp)
Narrower Terms
Highway beacons (Dcnspbg)
Obstruction beacons (Dcnspbj)
Radar beacons (Dcnspbp)
Radio beacons (Dcnspbs)
Related Terms (Hierarchical)
Compasses (Dcnspc)
Gyroscopes (Dcnspd)
Instrument displays (Dcnspe)
Flight recorders (Dcnspf)
Navigation computers (Dcnspg)
Navigation lights (Dcnspj)
Navigational satellites (Dcnspm)
Obstruction markers (Dcnspq)
Radar devices (Dcnsps)
Radio navigation devices (Dcnspt)