See also the FLR-9 "Elephant Cage" antenna arrays used for direction finding during the cold war. https://www.af.mil/News/Article-Display/Article/518691/iconic

See also the FLR-9 "Elephant Cage" antenna arrays used for direction finding during the cold war. https://www.af.mil/News/Article-Display/Article/518691/iconic-elephant-cage-laid-to-rest/ https://www.af.mil/News/Article-Display/Article/518691/iconi... https://fas.org/irp/program/collect/an-flr-9.htm https://fas.org/irp/program/collect/an-flr-9.htm