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Antenna quadrifilare per la ricezione dei satelliti meteo polari
L'antenna puo' venir corredata da due riflettori incrociati.E' consigliato un preamplificatore in prossimita' dell'antenna
post 04 Apr 2024
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The Lindenblad antenna
the Lindenblad antenna consists of four half wave folded dipoles slanted 30 degrees to the horizon, oriented 90 degrees to each other in azimuth, spaced 0.3 wavelength apart
The Quadrifilar Helix Receiving Weather Satellite
Types of Coax
you are going to need some coax to run to your antennas. we will talk about coax
UHF Yagi 10 element for AO-40
successful communication via "AO-40" by using the UHF UpLink, a Power of 150-200 Watts ERP was necessary ERP is a combination of Rig power output, Coaxial loss, and antenna gain
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the Lindenblad antenna consists of four half wave folded dipoles slanted 30 degrees to the horizon, oriented 90 degrees to each other in azimuth, spaced 0.3 wavelength apart
you are going to need some coax to run to your antennas. we will talk about coax
successful communication via "AO-40" by using the UHF UpLink, a Power of 150-200 Watts ERP was necessary ERP is a combination of Rig power output, Coaxial loss, and antenna gain
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