Hello Andy, you wrote: Also, what looks like data at 80Hz - could that be a ULF submarine transmission? I have forwarded the question to Renato, and indeed the 82 Hz signal is from a Russian transmit
Hi Andy I never remember hearing anyone detecting a resonance that high. the first is about 7.8Hz (from memory) and there are "harmonics" at approx 8Hz intervals....only they are not exact multiples,
Fascinating - just had to go and look-up Schumann resonances in Wikipedia. The article there says that the waveguide has a harmonic response at 59.4Hz, and gets excited by the US power grid. In which
Andy, There's info on submarine transmissions on the vlf.it web site: http://www.vlf.it/submarine/sbmarine.html The U.S. closed down its ELF facility in Clam Lake Wisconsin in 2004. It's interesting
Greetings all, Not LF or MF, but this may be interesting for some group members: Renato (IK1QFK) has set up a new automated ULF / ELF monitoring station : http://www.vlf.it/livedata.html It measures
