Ham Radio - An end fed half wave antenna with built in counterpoise. (Ex...
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=MKUZsC9BZmY. Experimenting with antennas is one of the great joys of ham radio. In this video from Kevin Loughin (KB9RLW), we go back in time to one of the "classic" HF antennas from the 1920s and 1930's. Kevin's end fed half wave with built-in counterpoise is based on an original 1909 design by German engineer Hans Beggerow, who later used the antenna on Zeppelin Air Ships. Along with other comments, Steve Ellington fills us in on Beggerow's original concept: REPLY Steve Ellington 1 day ago Hans Beggerow's antenna didn't have a counterpoise. That ladder line section was 1/4 wavelength long and acted as a transmission line transformer which transformed the high impedance antenna to a low impedance thus moving the high voltage point far away from the hydrogen filled balloon. It was simpl...