Hits 

Antena Cubica Multibanda


This is the quad-cubic antenna for 2 elements. 14.25 MHz = 21 Mts 50 cm, 21.30 MHz = 14 Mts 38 cm, 28.60 MHz = 10 Mts 73 cm
post 24 Mar 2024
Antena Cubica Multibanda

Antenna Quad Links

27



A Homebrew Quad 3 bandes 14-21-28
All elements of the rod and arm are made of fiberglass. The idea is to rebuild this 5-band antenna

Build a Multiple-Polarization Quad
The feedline is connected to point A, which gives a horizontally polarized transmitted signal

Double Quad 13CM 23 CM
Here is a description of a 9 dBd double quad and its calculations


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

Rx antennas 4Square Rx Vertical Array

Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m

Calculo da Antena Bazooka

Calculo da Antena Bazooka A double bazooka antenna is a combination that has a complete coaxial wave multiplied by its velocity factor and a total end-to-end length of 1/4 wave for each side affected by another driver shortening facto