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2 Element Yagi HB9CV for the 11 m
The HB9CV antenna is smaler than a 3el. conventional Yagi but you get the same gain and caracteristics
post 28 Jan 2024
Antenna CB 27 MHz Links →
Quad hf 5 elements 27.500 mhz
Accord 27.500 MHZ, impedance 50 ohm SWR 1.2
Realisation d'un doublet 27 MHz
It is not always easy to fix a doublet between two high points in a clear place. One solution is to hang the center of the doublet as high as possible and anchor both ends
Skypper spiderbeam 4 elem. 11 meter
Spiderbeam was founded in 2000 by DF4SA, animated by its passion for the portable business
Skypper spiderbeam Mono bande 11 meter
It is an antenna that comes in the form of a spiderweb a bit like a large umbrella type dryer and is remarkably effective. It has a gain of 5 dB and an av - ar ratio of 25 to 30 dB
Antenna Delta Loop a 2 elementi per 11m
I due lati obliqui sono invece fatti con del semplice filo di rame dal diametro uguale a 1.5 mm
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Accord 27.500 MHZ, impedance 50 ohm SWR 1.2
It is not always easy to fix a doublet between two high points in a clear place. One solution is to hang the center of the doublet as high as possible and anchor both ends
Spiderbeam was founded in 2000 by DF4SA, animated by its passion for the portable business
It is an antenna that comes in the form of a spiderweb a bit like a large umbrella type dryer and is remarkably effective. It has a gain of 5 dB and an av - ar ratio of 25 to 30 dB
I due lati obliqui sono invece fatti con del semplice filo di rame dal diametro uguale a 1.5 mm
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