Thanks for the link, it clearly reveals that the original HAARP installation, in Alaska has been expanded and likely refined over the prototype, the document lists the current installations, as follows:

The Project was aimed at experimentally investigating the possibility of exciting the ionospheric interlayer duct channel using powerful radiation from the heaters HAARP Alaska, USA and EISCAT Troms , Norway, as well as from HF broadcasting stations RWM Moscow, Russia and CHU Ottawa, Canada.