Seems to be a lot of chatter about these
Over the Horizon HF Radars which are currently splattering across both Amateur and Broadcast Bands on HF. I can hear a few of them and for the WEB SDR site at Utwente it's lifting his receiver off the bench by the look of it.
They have a large bandwidth and presumably a huge amount of power. The Russians appear to be getting the blame for it. This is not the
'Woodpecker' we all knew (and loved ?) back in the day. They certainly don't seem to care where they use it on the spectrum and just transmit where they please, presumably depending on propagation conditions.
Some info about them here:
http://www.southgatearc.org/news/201...0#.XHe74dN2t9B