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50MHz-Lambda/2-Vertical
The matching circuit is the same as above with the following components, C 1 = 20 - 110 pF, variabel Mica capacitor,C 2 = 2 - 15 pF, variabel foil capacitor
post 28 Jan 2024
Antenna 6 meter Links →
Portable UHF 4 elements Yagi Antenna
The antenna has 7.5 dBd (9.6 dBi) gain at 436 Mhz and the SWR varies from 1.3 at the lower edge, almoust to 1.05 to midband, and 1.9 at 440 Mhz
Magnetic Loop Antenne 70cm
The consequence: I'm mostly qrv on the vhf/uhf bands or on the higher hf bands - with easy to move self-made antennas and low power
Yagi LFA 5 el. per i 6m 50.000-50.150 MHz/
Progetto per la costruzione di un'antenna Yagi LFA Loop Fed Array per i 6m, con boom da 4.9m
3 element Yagi antenna
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The antenna has 7.5 dBd (9.6 dBi) gain at 436 Mhz and the SWR varies from 1.3 at the lower edge, almoust to 1.05 to midband, and 1.9 at 440 Mhz
The consequence: I'm mostly qrv on the vhf/uhf bands or on the higher hf bands - with easy to move self-made antennas and low power
Progetto per la costruzione di un'antenna Yagi LFA Loop Fed Array per i 6m, con boom da 4.9m
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