All you have to do is wind a 1/2 wavelength helix on a 33-foot (10.82 meters) fiberglass mast, add some loss loss coaxial cable for a feedline, and establish a good counterpoise or ground radial system.
In this video from "Engineering Subjects the Easy Way", we get a complete tutorial on the design, construction, testing, and use of this easily-made vertical antenna.
I've used vertical helix antennas for many years when I lived on small urban lots. Despite a restricted bandwidth, vertical helix antennas work well, provided you have a decent ground radial system beneath the antenna.
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=A4JDhllCPQo.
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Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).
