If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=4W5FFX3movg
Here's a nicely done multiband vertical antenna suitable for radio amateurs living in deed-restricted properties (HOAs/CC&Rs) or lacking space to erect a full 1/2 wavelength horizontal dipole. All you need is some creativity, a few spare parts, and a good radial system.
In this video, the antenna consists of a MFJ-1979 (1/4 wave 20-meter telescoping mast) a RadioWavz "Patriot 80: adjustable loading coil, a Hustler mast, and a MFJ-909 capacitive meter. The key to making this homebrew vertical antenna is using a decent radial system and loss loss coaxial cable feed line. An antenna transmatch (i.e. "tuner") could also be added to keep SWR losses low. Such a system could also be employed for portable use during the ARRL Field Day, SOTA expeditions, or just casual operations in a public park.
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Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).