THANK YOU!
https://fas.org/nuke/guide/usa/airdef/an-fps-118.htm
>OTH "over the horizon" defensive array– system for defense of missiles–operates without satellites
>AN/FPS-118 Over-The-Horizon-Backscatter (OTH-B) Radar
Hit the arrow on the left of the offending post, choose Global report and type explanation in the box. It will get zapped.