DIY 4:1 Current Balun with FT240-31

By M0PZT

This blog post details the construction and usage of a 4:1 current balun, using two FT240-31 ferrite cores and 12 bifilar turns. It clarifies common misconceptions about using 4:1 baluns with G5RV antennas and ladder-line to coaxial cable connections. M0PZT emphasizes the importance of proper measurements and the limitations of internal baluns in manual antenna tuners. Detailed instructions and considerations for winding and deploying the balun are provided, along with advice on choosing suitable cores and wire for various power levels and frequency ranges.

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Antennas/Baluns/4 to 1 balun

The title of the main category is 4 to 1 Balun and it deals mainly with 4 to 1 Balun. The resource has been on our site since Sunday Jul 14 2024, and it has been viewed 83 times. So far no one has rated it yet. Be the first to rate it!
Last updated: 2024-07-14

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