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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
200
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
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
Radioassistance Radioassistance E Kenwood Dealer, vendita ricetrasmittenti, antenne, parti di ricambio, elettronica
Conrad Electronic Electronic components online shop in German and Italian