Yes NanoVNA can measure resistance and reactance as well as a Smith chart.
Resonance is the frequency at which the antenna is purely resistive, and no
reactance.
You seem to be already aware that the "frequency of minimum swr" is not
necessarily the "resonant frequency." But, it can be. Read the ARRL
Handbook or ARRL Antenna Book for clarification.
Bill K2TNO
On Sun, Jan 19, 2025, 2:14?PM Peter Jones via groups.io <jonesypeter=
hotmail.com@groups.io> wrote:
Greetings,
I've recently completed the construction of my first 'home brew' antenna
(1/4 wave vertical). A radio friend of mine suggests I should look at
resonance as well as SWR.
SWR is fine, but I can't see anything online about an R/X chart (similar
to that available on the RigExpert).
Can I do this on the NanoVNA V4?
Thanks
Peter M0LMG
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