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Check Six: The Elephant Cage

April 29, 2020

From the Images of Old Hawaii website

It doesn’t exist anymore (and was relatively short-lived,) and contrary to its nickname, it didn’t house pachyderms. It was actually an antenna array, constructed near Wahiawā, O‘ahu, and used during the Cold War.

More formally known as the AN/FRD-10 Circularly Disposed Antenna Array (CDAA) at Naval Computer & Telecommunications Area Master Station (NCTAMS) (Facility 314,) it was a part of the efforts to gather foreign intelligence information.

Along with fourteen other FRD-10 CDAAs worldwide, it was a part of the Naval Security Group’s Classic Bullseye network, a program for strategic signals intelligence (SIGINT) collection and transmitter locating.

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From → History

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