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Vertical Collinear for VHF and UHF
An omnidirectional collinear, is capable of surviving harsh environments. It's a good choice for repeater installations and can be top, or side mounted to the tower
post 29 Jan 2024
Antenna for UHF VHF Links →
Loop per i 144 mhz
L'antenna si compone di un normale connettore da pannello, saldato al cerchietto di rame argentato ai cui estremi andra' saldato un compensatore Philips
Magnetic Loop for the 2m band
This loop copper is made of 50cm of 4mm soft tubing. The capacitor of two 1mm circular plates with about 3cm diameter torch-brazed to the loop conductor
PMR 446 by Sigmund
Questo tipo d'antenna e' mutuato direttamante da una Yagi col vantaggio del minore ingombro e della maggiore robustezza meccanica
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L'antenna si compone di un normale connettore da pannello, saldato al cerchietto di rame argentato ai cui estremi andra' saldato un compensatore Philips
This loop copper is made of 50cm of 4mm soft tubing. The capacitor of two 1mm circular plates with about 3cm diameter torch-brazed to the loop conductor
Questo tipo d'antenna e' mutuato direttamante da una Yagi col vantaggio del minore ingombro e della maggiore robustezza meccanica
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