1) Yes, measure the frequency where the phase shifts from +180 to -180
degrees.
2) Using the definition of resonance: Measure the frequency where the
complex portion of the impedance goes to zero.
In reality, both methods are measuring the same parameter, just presented
in different formats.
If you view this on the Smith Chart, either measurement would yield the
frequency where the measurement goes between the top and the bottom of the
chart across the single horizontal line on the chart. That horizontal
represents resistance only, no reactance.
Dave - W?LEV
On Mon, Aug 24, 2020 at 4:37 PM Bob Albert via groups.io <bob91343=
[email protected]> wrote:
You can measure resonance with the nano by observing the phase. When the
phase switches from 180 degrees to -180 degrees you have resonance. But
minimum SWR is usually a good enough indicator if it's fairly low, say less
than 2:1.
Bob K6DDX
On Monday, August 24, 2020, 02:58:45 AM PDT, <ea3iji@...> wrote:
Thanks David, that's basically what I did, except that I was only checing
the minimum SWR, How should I do to find the resonance freq with nanovna??
--
*Dave - W?LEV*
*Just Let Darwin Work*
