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4:1 balun for 160 to 10 meters
Stack two t-80-2 powdered iron toroid cores together. use super glue
post 25 Jul 2024
Toroid & balun Links →
A simple broadband 4:1 Balun Transformer
10 bifilar turns are mount on an Amidon FT-240-61 ferrite core
Balun 4:1 Para varios tipos de antenas
The balun performs this function! that is, it overcomes this inequality and improves signal transfer
UN-UN for longwire antenna
The photo above shows the winding of about 70 turns and of 0.5 mm covered wire
The Dual-Ferrite-Bead 4:1 HF Balun
Ruthroff voltage balun design using a T200-2 Toroid core was selected
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
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10 bifilar turns are mount on an Amidon FT-240-61 ferrite core
The balun performs this function! that is, it overcomes this inequality and improves signal transfer
The photo above shows the winding of about 70 turns and of 0.5 mm covered wire
Ruthroff voltage balun design using a T200-2 Toroid core was selected
There are lots of good designs for matching transformers for receiving antennas. it's cheap and easy, and very high performance
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