:?: LOOKING FOR THOSE WITH AN INTREST IN VLF AND ULF RECEPTION...BEEN INTO HF AND VHF IN THE PAST AND NOW IS TIME TO TRY THE BASEMENT...EQUIPMENT AND ANTENNA DESIGN PLUS FILTERING NEEDED.......TNX DE WF0C JACK
Although you probably have done so already, try an Internet search for "lowfer" groups. They do exist. I have a copy of a LF "scrapbook" that was published back in the 1970's, but it's in storage and I can't get the title of it right now, but it's something like "The Low Frequency Scrapbook". There also have been several articles in hobbyist mags on the subject. I think that Don Carr also had a book out on the subject.