The Collaborative International Dictionary
Signal \Sig"nal\, a. [From signal, n.: cf. F. signal['e].]
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Noticeable; distinguished from what is ordinary; eminent; remarkable; memorable; as, a signal exploit; a signal service; a signal act of benevolence.
As signal now in low, dejected state As erst in highest, behold him where he lies.
--Milton. -
Of or pertaining to signals, or the use of signals in conveying information; as, a signal flag or officer.
The signal service, a bureau of the government (in the United States connected with the War Department) organized to collect from the whole country simultaneous raports of local meteorological conditions, upon comparison of which at the central office, predictions concerning the weather are telegraphed to various sections, where they are made known by signals publicly displayed.
Signal station, the place where a signal is displayed; specifically, an observation office of the signal service.
Syn: Eminent; remarkable; memorable; extraordinary; notable; conspicuous.
Wikipedia
A signal station is a form of Aids to Navigation that is defined by the IHO simply as "A signal station is a place on shore from which signals are made to ships at sea". While this broad definition would include coastal radio stations and fog signal stations, the term is most often used for shore installation that use visual signals to communicate with ships at sea.
Usage examples of "signal station".
From the signal station they were ordered to go straight into Gladstone Dock.
For that matter he could almost feel a stirring within his skull as the ideas began to form, as he thought about the signal station on Petit Minou, as the germs of plans began to sprout.
But at least this concentration of the British strength to the north left the south unwatched, as the signal station of Petit Minou would report.
He was now doing forty driving backward down Signal Station Road on the Rock in the rain.
He still did not dare signal Station A-10 for fear of enemy monitoring, but his host could easily travel the distance.