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Slim jim jpole
this calculator can be used to design a slim jim or a j pole antenna. the slim jim, can be a great portable roll up antenna, if made out of 300? or 450? ladder line twin feeder. a slim jim for 2m 145mhz will be 1.5 metres long, and 70cm 433mhz will be 0.5 metres. alternatively, for permanent installations, the copper tube
post 03 May 2024
Antenna Calculator Links →
A Simple Seven Element Yagi Antenna
calculate the dimensions for a seven element Yagi-Uda Antenna. Simply enter the freqency in Megahertz
RF Balun Calculator
The formula/equation for this RF Balun calculator is also mentioned. The calculator is for RF LC balun type
Calcolo di antenne dipolo verticale loop
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calculate the dimensions for a seven element Yagi-Uda Antenna. Simply enter the freqency in Megahertz
The formula/equation for this RF Balun calculator is also mentioned. The calculator is for RF LC balun type
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
Amateur radio kits by Kanga US
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