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Low cost Helical HF Portable Antenna
Here's an easily transportable vertical antenna for 20 meters collapsible to 4 feet
post 30 Dec 2024
Antenna 20mt 14 Mhz Links →
20 Meter Ground Plane Vertical Antenna
The portable 20m ground plan antenna is a basic wire arrangement with a wire radiator and three radials spaced 120 degrees apart
20m vertical aerial
About ten feet of 22mm copper pipe and about eight feet of 15mm copper pipe
20 meter Vertical with Balun
The balun is rather easy to make you need only a few items. This is a basic balun for a wire antenna, and it worked great for the flagpole
20m vertical antenna
Vertical antennas with a 1/4 or 1/2 wave sizing. Just a happy few build a 5/8 wave vertical antenna. This is remarkable, since the 5/8 has the lowest angle of radiation and has about 1dB more gain compared to 1/4 and 1/2 verticals
A cubical quad for 20 meter
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The portable 20m ground plan antenna is a basic wire arrangement with a wire radiator and three radials spaced 120 degrees apart
About ten feet of 22mm copper pipe and about eight feet of 15mm copper pipe
The balun is rather easy to make you need only a few items. This is a basic balun for a wire antenna, and it worked great for the flagpole
Vertical antennas with a 1/4 or 1/2 wave sizing. Just a happy few build a 5/8 wave vertical antenna. This is remarkable, since the 5/8 has the lowest angle of radiation and has about 1dB more gain compared to 1/4 and 1/2 verticals
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