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Biquad for PMR 446MHz


Antenna BiQuad for 446 Mhz
post 29 Feb 2024
Biquad for PMR 446MHz Biquad for PMR 446MHz

Antenna for 446 MHz Links

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Antena rx Slim Jim PMR 446 Mhz
This easy construction antenna has a good gain and an advantage, the vertical radiation angle is only 15

Antena Slim Jim PMR 446 de J.Colmenar
Simple quarter wave ground plane antenna for 446Mhz, all elements measure 15.8cm.

Antenna Yagi 14 elementi autocostruita per PMR446
Here is the first Yagi antenna still operating for my PMR 446 MHz radios, 14 elements, 2.5 meters long, with a gain of 13.6 dB compared to the dipole

A dual 446 MHz bazooka
A homebrew antenna for 446 MHz bazooka

The normal-mode helix antenna
This page shows a 7 element, Yagi beam antenna built out of spare parts for the 70 CM band


Take off angle of horizontal antenna

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

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

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