Proctor!
In the United States, there have been two related ionospheric heating facilities: the HIPAS, near Fairbanks, Alaska, which was dismantled in 2009, and one at the Arecibo Observatory[38] in Puerto Rico, which collapsed in 2020. The European Incoherent Scatter Scientific Association (EISCAT) operates an ionospheric heating facility capable of transmitting over 1 GW effective radiated power (ERP), near Tromsø, Norway.[39] The Sura Ionospheric Heating Facility, in Vasilsursk, Russia, near Nizhniy Novgorod, is capable of transmitting 190 MW ERP.