Hits
9:1 balun
Primary winding 30 turns,secondary winding 10 turns,after checking for proper solder joints, you may pot all components in epoxy
post 03 Mar 2024
Toroid & balun Links →
How to Build an UNUN
If you want to built your own UNUN, up F114-67 ferrite core, a few feet of #14 enameled copper wire enough for 9, bifilar turns
Homebrew
A universal matching transformer giving 1:1; 4:1 balanced and 9:1 unbalanced
il balun balanced - unbalanced
1:1 presenta al connettore una linea sbilanciata, avendo in ingresso un'antenna bilanciata
Les baluns sur tores en ferrite
It is necessary to consider the average power to be transmitted, not only the maximum power. Core saturation only occurs during power peaks
Toroid T200 for long wire antenna
Balun unun to feed a long wire antenna ideally without a tuner a 9:1 voltage unun design using a T200-2 Toroid core was selected
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If you want to built your own UNUN, up F114-67 ferrite core, a few feet of #14 enameled copper wire enough for 9, bifilar turns
A universal matching transformer giving 1:1; 4:1 balanced and 9:1 unbalanced
1:1 presenta al connettore una linea sbilanciata, avendo in ingresso un'antenna bilanciata
It is necessary to consider the average power to be transmitted, not only the maximum power. Core saturation only occurs during power peaks
Balun unun to feed a long wire antenna ideally without a tuner a 9:1 voltage unun design using a T200-2 Toroid core was selected
Linear loaded short dipole 21Mhz For my amateur radio activities on the HF bands I only have a 3.6 m wide balcony available for antennas. After some study I decided to experiment with a shortened dipole for the 15 m band
Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m
A simple SWR Meter is to be used at HF An SWR meter provides information about how well matched is your antenna with the transmitter and how well power is being radiated