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2-element Parasitic Vertical Array for 80
Monopole is 20.2 meters long and 50 mm diameter aluminum, fed at the bottommost wire segment. The chosen diameter is an average value assuming a tapering schedule for telescoping aluminum tubes
post 28 Jan 2024
![2-element Parasitic Vertical Array for 80](http://1.bp.blogspot.com/-JyUvIojFfbQ/VQnXaRoN7xI/AAAAAAAABUo/OniuHojF6co/s1600/80m_2el_vert_parasitic_overlapping_radials16_currents.png)
Antenna 80 meter Links →
Antenne double-bazooka
The double-bazooka consists of 1/2 lambda of coaxial cable cut in the center or twice 1/4 of lambda
Antena doble Bazooka para 80 metros
The antenna called double bazooka was designed to be used in radar by the staff of M.I.T.
1/4 Vertical bazooka antenna for the 40m
I needed a omnidirectional antenna for the 40m here is the schema of the antenna
Coaxial Antennas
I constructed a simple horizontal dipole with each half comprising RG58 coaxial cable about 35 inches 900mm long
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The double-bazooka consists of 1/2 lambda of coaxial cable cut in the center or twice 1/4 of lambda
The antenna called double bazooka was designed to be used in radar by the staff of M.I.T.
I needed a omnidirectional antenna for the 40m here is the schema of the antenna
I constructed a simple horizontal dipole with each half comprising RG58 coaxial cable about 35 inches 900mm long
![Linear-loaded-short-dipole-21mhz](/../antype/ch18/images/linear-loaded-short-dipole-21mhz.jpg)
Linear loaded short dipole 21Mhz For my amateur radio activities on the HF bands I only have a 3.6 m wide balcony available for antennas. After some study I decided to experiment with a shortened dipole for the 15 m band