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20m & 40m trapped vertical antenna


With the wire lengths shown and supported by my 9m squid pole, I got SWR less than 1.3:1 on 7.100 MHz and 14.200 MHz
post 08 Mar 2024
20m & 40m trapped vertical antenna

Antenna Vertical Links

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9 band vertical HF antenna
May be it sounds crazy, but this antenna realization is my former idea of using any random wire as HF multiband

27m Titanex vertical
The antenna tuning unit used with this 27m Titanex vertical was originally designed to operate on 40, 80 and 160m

A 60 foot Irrigation Tubing Mast/Vertical

Antenna verticale per 160 metri
Here are some photos of my workhorse 60 foot mast design, made from 3 inch aluminum irrigation tubing


Take off angle of horizontal antenna

Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane

Build a Three-Way Antenna Switch and Display

Build a Three-Way Antenna Switch and Displa To use a wireless relay to select one of two high current capacity power relays

5 element yagi antenna for 28.5 Mhz

5 element yagi antenna for 28.5 Mhz Gamma match will be made with a 1/2 "aluminum tube and a 75 cm coaxial piece of RG8 without sock and sheath inside the tube