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Spiral antenna for RTLSDR


A Vivaldi antenna is wideband and directional and the design works well for frequencies above 800 MHz
post 25 Jan 2024
Spiral antenna for RTLSDR

Spiral antenna Links

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Petlowany Antenna Experiment
It is essentially a very short dipole with spiral-wound coils at each end

Spiral antenna for RTLSDR
A Vivaldi antenna is wideband and directional and the design works well for frequencies above 800 MHz


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