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Binocular ferrite 9:1 balun rx transformer
There are lots of good designs for matching transformers for receiving antennas. it's cheap and easy, and very high performance
post 28 Jan 2024
Toroid & balun Links →
Transformateur adaptation pour antenne 9:1 balun
To best use a long-wire antenna, the 9: 1 transformer toroid T200-2 red or T200-6 yellow
A 9:1 Balun For Your End Fed Antenna
End-Fed antenna it is wired as a so-called unun transformer unbalanced to unbalanced
Balun 9:1 su toroide
Each antenna has a characteristic impedance that, often, does not fit with that of the drop cables and the inputs of the equipment
One balun for 40-80-160 meter, OE7OPJ
Amidon FT 140-77 for 40/80/160m, and amidon FT140-43 for 20-6m - multi trasformer 4:1 - 9:1 - 16:1
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To best use a long-wire antenna, the 9: 1 transformer toroid T200-2 red or T200-6 yellow
End-Fed antenna it is wired as a so-called unun transformer unbalanced to unbalanced
Each antenna has a characteristic impedance that, often, does not fit with that of the drop cables and the inputs of the equipment
Amidon FT 140-77 for 40/80/160m, and amidon FT140-43 for 20-6m - multi trasformer 4:1 - 9:1 - 16:1
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