Fair-Rite has several excellent videos on measuring the yr of unknown
toroids. Search their www site for videos. They are excellent.
Dave - W0LEV
On Fri, Jun 23, 2023 at 3:58?PM Roger Need via groups.io <sailtamarack=
[email protected]> wrote:
On Wed, Jun 21, 2023 at 12:48 PM, Kurt Heernaert wrote:
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?
Measuring toroids has been discussed many times in this group over the
last few years. There is a wealth of information provided by many
knowledgeable group members. If you do a group message search on "toroid"
you will find lots on information on how to measure toroids and
identify/verify them using the NanoVNA. You can also take a look at this
groups wiki for links to relevant posts. How to use the S11 and S21
methods of impedance measurement and NanoVNA limitations with the S21
technique are discussed in depth. There is a wealth of information
provided by many knowledgeable group members.
Roger
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*Dave - W?LEV*
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Dave - W?LEV
