plural of rotating beacon

A lightship.

plural of floating beacon

plural of marker beacon

(aviation) A type of VHF radiobeacon which radiates in a tight cone pattern extending vertically from the transmitter; now generally only used to mark specific points along an ILS or IGS approach path, but formerly also commonly used to mark reporting points along en route airways.

(communication) an emergency location radio beacon

plural of personal locator beacon

(communication, nautical) an emergency location radio beacon, used on ships

plural of emergency position indicating radio beacon

Resembling or characteristic of a beacon.