Circularly disposed antenna array: Difference between revisions

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[[File:Elmendorf AFB Alaska - 10sep2002.jpg|thumb|An overhead view of [[Elmendorf Air Force Base|Elmendorf AFB]], [[Alaska]], in late 2002. The antenna array is the large circle in the forested area, in the upper left, comparable in size to the adjacent [[airstrip]].]]
The Elmendorf array was decommissioned in May 2016<ref>[http://www.25af.af.mil/News/ArticleDisplay/tabid/6217/Article/779267/silencing-the-arctic-mammoth.aspx Silencing the Arctic Mammoth] {{Webarchive|url=https://web.archive.org/web/20161018233223/http://www.25af.af.mil/News/ArticleDisplay/tabid/6217/Article/779267/silencing-the-arctic-mammoth.aspx |date=2016-10-18 }}", ''25th Air Force website'', 23&nbsp;May 2016.</ref><ref>{{cite web|url=http://www.ktva.com/inside-a-classified-cold-war-era-antenna-site-now-shut-down-625/|title= A look inside a classified Cold War-era antenna site, now shut down|website=KTVA|date=25 May 2016|url-status=dead|archive-url=https://web.archive.org/web/20170501061010/http://www.ktva.com/inside-a-classified-cold-war-era-antenna-site-now-shut-down-625/|archive-date=May 1, 2017}}</ref> due to its age and unavailable repair parts.
 
The U.S.&nbsp;Army awarded a contract in 1968 to F&M&nbsp;Systems to build AN/FLR-9 systems for [[USASA Field Station Augsburg]], Germany, and Ramasun Station in [[Mueang Udon Thani District#Ramasun Station|Udon Thani]], Thailand ({{coord|17.2919|N|102.8682|E|scale:2000}}). Both were installed in 1970.<ref>The Army version has the same design as the Air Force version, but the design of the delay lines in the Beam Forming Networks inside the Central Building are different. The Army used what is called a "Lumped Constant" delay line design and the Air Force used a "Coaxial" delay line design.</ref> The Ramasun Station array was dismantled in 1975 following base closure.