VLF, Something must have happened, there is an extreme enhancement of the VLF signal levels, starting arround 11:15 UTC. Who knows what happened? http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_V
Stefan, also on 100 kHz, where Saudi Arabian and Caucasian Loran-C signals showed a significant peak: http://www.alice-dsl.net/df6nm/LoranView/LoranGrabber.htm Best 73, Markus (DF6NM) --Ursprüngliche