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Coaxial Traps for Multiband Antennas
An analysis of an antenna trap where a coil is formed of a length of coax cable
post 04 Mar 2024
Antenna Multibands Links →
Windom Antenna
The peculiar aspect of the I7SWX windom is the balun,wound on a simple ferrite rod,instead of the commonly used toroid
Morgain per i 40 e gli 80 metri
This antenna has in its main characteristic, the fact that with only 20 mtof space occupied it works the 80 meters
The Homebrew Buddipole 17m/15m
I made the Buddistick first, then later made the Buddipole. Both are easy to make and work well
Doublet Antenna
The ATU design gives a reasonable 'Q' factor so you will have to tune it regularly. Eurotherm PID controllers and a stepper-motor can make a good auto-ATU
The Dipole antenna
The DIPOLE antenna, here some reference data, pointers and ideas that may help you
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The peculiar aspect of the I7SWX windom is the balun,wound on a simple ferrite rod,instead of the commonly used toroid
This antenna has in its main characteristic, the fact that with only 20 mtof space occupied it works the 80 meters
I made the Buddistick first, then later made the Buddipole. Both are easy to make and work well
The ATU design gives a reasonable 'Q' factor so you will have to tune it regularly. Eurotherm PID controllers and a stepper-motor can make a good auto-ATU
The DIPOLE antenna, here some reference data, pointers and ideas that may help you
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