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J-pole antenna line TV 300 to 600 ohm


J-pole antenna line TV 300 to 600 ohm

The antenna in "J", so called because of its shape, is generally used on 2m and 70cm, even 23 cm and 6m

post 14 Sep 2024
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Antenna jpole Links

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Vertical antenna Slim Jim
The slim jim has more bandwidth or a wider range of frequencies than the jpole

VHF End-Fed Half-Wave J-Pole
The Folded Dipole Antenna, with balsa wood strips and epoxy resin for strength and protection, and the dipole was made from 1/16" diameter

Verticale alimentee en J
All these dimensions can be extrapped to other frequencies,example for 70 CM 132/207 * 69 = 44 cm

Antena dual VHF-UHF tipo SLIM-JIM
Using 300 Ohms parallel cable, the Slim Jim has the following characteristics, bandwidth with 1.5: 1> 4MHz

The J-Pole Antenna
The J-Pole antenna is a common omni directional antenna used in amateur radio, particularly on the VHF and UHF bands


Antenna splitter per VHF-UHF per quattro ricevitori

Antenna splitter per VHF-UHF per quattro ricevitori Chi dispone di una sola antenna e vuole collegarvi più di un ricevitore necessità di uno splitter

Kits and Components

Amateur radio kits by Kanga US

50MHz to 28MHz RX Converter

50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal