A Roman signal station would make a lot of sense here as there is known to be one at nearby blackdown (roughly the Hardy monument) which can be plainly seen from here. The blackdown site is also known to be part of a chain of "beacons". Also the coastal placing of the hillfort would make a very good place to put an emergency signal station. There's no evidence for the hillforts themselves having been used in the Iron / bronze ages for sending signals to one another, but I can't see any reason why not.
A hillfort and a Roman signal tower?. Triangular in plan, its defences encloses 4 and half acres. On the N.S. and E. the earthworks comprise 2 banks with a ditch between them. At the S.E. level ground has caused the building of four ramparts with ditches outside them.
Maybe Roman bit; At the S.W. earthworks have been altered at some later stage so that an almost square earthwork has been constructed in the angle of the inner bank.
Within the hill-fort to S.E. are a group of about 9 circular depressions could represent site of huts B/A? south west of them is the mound of a bronze age bowl barrow.. Presumed Date; 250-50 bc.
Taken from A Guide to Prehistoric England - Nicholas Thomas 1960.