Classic Bullseye
The AN/FRD-10 Circularly Disposed Antenna Array (CDAA) is a United States Navy circular "Wullenweber" antenna (electronics), antenna array, built at a number of locations during the cold war for high frequency radio direction finding (High-frequency direction finding, HF/DF) and signals intelligence. In the Joint Electronics Type Designation System, FRD stands for ''fixed ground, radio, direction'' finding. 14 sites were originally constructed as a part of the "Classic Bullseye" program. Two AN/FRD-10 systems were later installed in Canada. AN/FRD-10 systems were originally constructed in the early 1960s, but after the dissolution of the Soviet Union, the systems began to be shut down and demolished. The Naval Security Group operated and maintained the U.S. Navy AN/FRD-10 systems. The system had several nicknames including ''Fred-10'' and ''Elephant'' or ''Dinosaur cages''. As of 2015, none of the US Navy AN/FRD-10 sites are extant, but the two Canadian sites remain in service. Th ...
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Overview Of Facility 314, View Facing Northwest - U
Overview may refer to: * Overview article, an artícle that summarizes the current state of understanding on a topic * Overview map, generalised view of a geographic area See also * Summary (other) * Outline (list) * ''A Brief Overview'' * Overview and Scrutiny * Overview effect The overview effect is a cognitive shift reported by some astronauts while viewing the Earth from space. Researchers have characterized the effect as "a state of awe with self-transcendent qualities, precipitated by a particularly striking visu ...