We were just discussing “The Russian Woodpecker” detection system on another thread. It was located right near Chernobyl.
https://www.youtube.com/watch?v=Nft0jVleW78
I remember this vididly when I listened on shortwave.
Side note. IIRC, that antenna array is HUGE and it actually was used (with some CGI supplementation) in one of those stupid movies with Shalene Woodley (Divergent, Allegiant, Insurgent) that was supposed to be some kind of force-field/image projector.