View attachment 11973
This radar used to be on beacon hill, brookie was literally under the radar.
It was the symbol of my alma mater, beacon hill high.
https://amp.dailytelegraph.com.au/n...y/news-story/d09d1ae4c23c69c0afd03503a40c9eb6
The radar at Beacon Hill was vital for the defence of Sydney
July 3, 2015 5:43am
John MorcombeManly Daily
Halfway up the ridge between the Brookvale and Dee Why valleys, the rocky knoll called Beacon Hill commands expansive views of the coastline.
With such a commanding aspect over the approaches to Sydney, it was probably inevitable that Beacon Hill would one day by used for military purposes.
The hill takes its name from the trigonometrical beacon, called Manly Trig Station, that was established on its crown by the Lands Department in 1881.
The first military use of Beacon Hill was in the early days of World War II.
An observation post was established as part of Sydney
Fortress, the city’s coastal defence system on which work had begun in the mid-1930s in response to the rising tide of Japanese militarism.
The fortress was based around batteries of 9.2-inch guns at North Head and Cape Banks, along with six-inch batteries at Middle Head, South Head and Signal Hill.
To detect and track enemy shipping observation, posts needed to be fitted with telescopic position finders, so posts were established at Beacon Hill, Dover Heights and North Head.
The information from the observation posts was transmitted to plotting rooms and data was then transmitted to the guns.
But darkness or bad weather made for poor observation, so the newly invented radar was introduced as soon as it became available.
....
But technology and defence policy were changing rapidly and the Beacon Hill radars were eventually superseded by mobile radars of the same type and subsequently by better radars.
With its equipment becoming increasingly obsolete, the radar establishment at Beacon Hill was finally
closed in October 1973.
But its presence had ensured no tall buildings were built nearby because they would have interfered with the radars’ ability to operate to their optimal capacity.
Undeveloped land near the radar dishes at Beacon Hill. 1973
The radars were removed in February 1974. The area was handed over to Warringah Council 1977 and used as headquarters by the local State Emergency Service, Volunteer Coastal Patrol and Manly-Warringah Radio Club.
The council sold the land in 1982 to the Australian Fixed Company, which already owned surrounding industrial land.
The volunteer groups that were based at Beacon Hill moved to Terrey Hills, along with the Warringah Shire Bush Fire Brigade.
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So interesting that Brookie was under an actual radar and it was part of a virtual fortress