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Antenna CobWebb 20m 17m 15m 12m 10m
Balun di corrente su toroide Amidon T200 avvolgere 8 spire sul toroide da un lato ed altre 8 spire dall'altro lato
post 13 Feb 2024
Antenna Cobweb Links →
Antenna CobWebb 20m 17m 15m 12m 10m
Balun di corrente su toroide ( Amidon T200) avvolgere 8 spire sul toroide da un lato ed altre 8 spire dall'altro lato
Antenna project cobweb
After the success of my first cobweb antenna I decided to build a rigid version for my home QTH
Antenna Homemade SP3L CobWeb
My first Cobwebb was the design from G3TPW. And work very well, the only limitation was the small bandwith. After a year I was very happy with this kind of antenna and decided to make a definitive cobweb. This time i built the SP3L variant with an inproved bandwith
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Balun di corrente su toroide ( Amidon T200) avvolgere 8 spire sul toroide da un lato ed altre 8 spire dall'altro lato
After the success of my first cobweb antenna I decided to build a rigid version for my home QTH
My first Cobwebb was the design from G3TPW. And work very well, the only limitation was the small bandwith. After a year I was very happy with this kind of antenna and decided to make a definitive cobweb. This time i built the SP3L variant with an inproved bandwith
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 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 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