The story of this top secret place is one of mystery and intrigue. Now abandoned, a rusting testament to man’s cold war hubris, almost all popular accounts on the web are seriously flawed – victims of deliberate disinformation. Where did it come from? What did it do? Did it transmit? Did it receive? Was it the first of three, or the third of two?
Keith Snyder, KI6BDR, has been busy reverse engineering to uncover truth before time erases history. Keith shows visible engineering clues that reveal the mission and to correct the history of the huge “Duga 3” antenna Array. Keith Snyder (KI6BDR) currently works at Northrop Grumman as an antenna engineer at the Space Division located in Dulles Virginia. Keith has a BSEE degree from Ohio State University and studied antennas and electromagnetics from a well known ham operator Dr. John Kraus (W8JK). He has been working in the field of antennas since 1980. He has used computer codes for antenna analysis and design through out his career and is currently an expert user of FEKO for antenna design and scattering analysis.
....
https://www.youtube.com/watch?v=3c4n0i3dr-M