Check this out. http://home.tiscali.ch/hb9abx/ant--abx-e.htm HB9ABX writes: One thing I can reveal here: This is not a Microvert and no EH-Antenna. I call it a "capacitive sky radiator". I Love the name, capacitive sky radiator. Oh well, it´s a strange world we live in!! 73 Jim SM2EKM