Ham Radio HF Homebrew Antenna
If you can't see the video, please insert this title URL into your browser search box:
This is post 2559 in a continuing series of simple ham radio antennas.
Thanks to Mike Hannah for this fascinating homemade HF vertical antenna made from PVC pipe and "slinky" toys.
According to Mike, this modified vertical helix antenna works from 80 meters through 6 meters.
Here are some comments from Mike: