43 or 31 material are appropriate for HF applications. 43 is better for
20-meters upward and 31 material is best for 160 through 40 meters. If you
are sure you have 43 material, there really is no reason to test the
toroids.
Dave - W0LEV
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On Wed, Jun 21, 2023 at 12:48?PM Kurt Heernaert <on4cgw@...> wrote:
Dears,
FT240-43 Torroid, Can I use my NanoVNA to meassure my several torroids to
be sure that I have the correct ones for HF UNUN?
any info is welcome
73,
Kurt
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*Dave - W?LEV*
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Dave - W?LEV
