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Double Extended Zepp NVIS Antenna Calculator
The measurements below are for building a Double Extended Zepp Near Vertical Incident Skywave NVIS Antenna
post 05 Dec 2024
Antenna Calculator Links →
Return Loss Calculator
Calculates the absolute load impedance, reflection coefficient, VSWR, return loss and mismatch loss of a load
Single Layer Air Core Inductor Design
Round wire coil with dimensions and current-sheet approximation
Sophisticated Helix Antenna Design
With matching Coax to 50 ohm<
The Quarter-wave stub
The Quarter-wave stub can be used for many purposes. If it is left with an open end it can be used as a notch filter to attenuate certain frequencies
RF-Calkulator
Wavelength calculator,resonance calculator,the ohm's law,air condensers calculator,coils calculator
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Calculates the absolute load impedance, reflection coefficient, VSWR, return loss and mismatch loss of a load
Round wire coil with dimensions and current-sheet approximation
With matching Coax to 50 ohm<
The Quarter-wave stub can be used for many purposes. If it is left with an open end it can be used as a notch filter to attenuate certain frequencies
Wavelength calculator,resonance calculator,the ohm's law,air condensers calculator,coils calculator
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