Hits
Antena VHF yagi 5 elementos 144Mhz
Antena VHF yagi 5 elementos 144Mhz
post 02 Mar 2024
Antenna for UHF VHF Links →
Homebrew antenna VHF
You build a 1/4 wavelength groundplane antenna
L'antenne colineaire
All elements are connected to the boom directly NOT isolated from the boom, you may mount them on top of the boom or trough the boom
L'antenne Lindenblad
The Lindenblad antenna has ideal features for receiving transmissions from moving satellites during very low passes on the horizon.
Laptop Mini Wireless Antenna
The size was chosen so it could be housed inside the tube of an old pen, to provide rigidity and protection to the antenna
Log per. 144-1,2GHz
Log periodica 144-1,2 GHz ricavata da un'antenna televisiva Fracarro LP345HV
154
You build a 1/4 wavelength groundplane antenna
All elements are connected to the boom directly NOT isolated from the boom, you may mount them on top of the boom or trough the boom
The Lindenblad antenna has ideal features for receiving transmissions from moving satellites during very low passes on the horizon.
The size was chosen so it could be housed inside the tube of an old pen, to provide rigidity and protection to the antenna
Log periodica 144-1,2 GHz ricavata da un'antenna televisiva Fracarro LP345HV
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