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Doubla bazooka coaxil dipole antenna
A typical, dipole antenna has bandwidth of about 50 to 100 KHz
post 20 Mar 2024
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Double bazooka coaxial dipole broad-band, W5BGP
The inside sections, do not radiate, but act as quarter-wave shorted stubs which presents high resistive impedance to the feed point at resonance and tends to cancel reactance as frequence off resonant frequencies
Double Bazooka Dipole
consist of a half wavelength piece of coax RG58 with the shield split at the center and the feedline attached to the open ends
Antenne double-bazooka
The double-bazooka consists of 1/2 lambda of coaxial cable cut at its center or twice 1/4 lambda
Double bazooka Antennen
My measurements that I used successfully: Band: Coaxial length: 30m 9.77m 2.03m (30cm longer left to vote) 40m 13.99m 2.904m (30cm longer to vote) 80m 26.77m 5.41m
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The inside sections, do not radiate, but act as quarter-wave shorted stubs which presents high resistive impedance to the feed point at resonance and tends to cancel reactance as frequence off resonant frequencies
consist of a half wavelength piece of coax RG58 with the shield split at the center and the feedline attached to the open ends
The double-bazooka consists of 1/2 lambda of coaxial cable cut at its center or twice 1/4 lambda
My measurements that I used successfully: Band: Coaxial length: 30m 9.77m 2.03m (30cm longer left to vote) 40m 13.99m 2.904m (30cm longer to vote) 80m 26.77m 5.41m
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