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Antena for 40 and 80 meters type W3DZZ
I had a dipole for 40 meters in inverted V, with twice 10.25 meters of 2.5 mm2 copper wire in section. I decided to transform it into a W3DZZ to be able to work also in 80 meters
post 28 Mar 2024
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A Co-ax Trap Dipole For 40, 30 and 20 Meters
Another way to minimise the loss of an antenna using coax traps is to use the minimum length of coax needed to achieve resonance
Antena morgain 40/80M
This antenna reduced dimensions for 80 and 40 Meters
Antena dipolo Multibanda
This dipole antenna functions as a half wave dipole in the 40 and 20m bands. In the 80m band it is a shortened dipole and in the 15m band it is a 3/4 wave dipole when the 40m 7Mhz thread resonates at 15m 21MHz
Antenna tipo G5RV
L'antenna e' alimentabile anche con linea bifilare TV da 300 ohm, ma e' preferibile che l'alimentazione avvenga per il tramite uno stub in linea aperta
El Dipolo G5RV
The G5RV antenna is expected to be the most popular among fans. Maybe because of the characteristic of being able to work in different bands
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Another way to minimise the loss of an antenna using coax traps is to use the minimum length of coax needed to achieve resonance
This antenna reduced dimensions for 80 and 40 Meters
This dipole antenna functions as a half wave dipole in the 40 and 20m bands. In the 80m band it is a shortened dipole and in the 15m band it is a 3/4 wave dipole when the 40m 7Mhz thread resonates at 15m 21MHz
L'antenna e' alimentabile anche con linea bifilare TV da 300 ohm, ma e' preferibile che l'alimentazione avvenga per il tramite uno stub in linea aperta
The G5RV antenna is expected to be the most popular among fans. Maybe because of the characteristic of being able to work in different bands
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