The Omni VII rx easily hears ELF and VLF stations down to near it's lower limit, 1000 cycles per second! I'm definitely hearing stations at around 8, 10, and 12kc. http://w5jgv.com/downloads/Worldwide%20ELF%20VLF%20Guide.pdf Mike K4QET --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus