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Re: READING L AN C VALUES USING THE NANOVNAs and the SMITH CHART


 

QUOTE:
Good overview. I think it is worth to add a little bit more to point 2
of the recommendations.
Because in case one is measuring a reactive component at a frequency
range of interest, which coincidentally is around the self resonant
frequency.
Maybe selecting a low frequency range first.
UNQUOTE

You're right, Kees. When I wrote the second "RECOMMENDATION", I seriously
considered including a caution to first do a wide sweep which may include
the self resonant frequency. I decided not to include that and keep the
thread focused on the task at hand to keep it simple for those unfamiliar
with these types of measurement. I did seriously consider adding your
suggestion. Thank you. Maybe after more comments, I'll go back and
incorporate additional information based on feedback.

Dave - W?LEV

On Fri, May 16, 2025 at 10:18?AM PE0CWK via groups.io <pe0cwk=
[email protected]> wrote:

Dave,

Good overview. I think it is worth to add a little bit more to point 2
of the recommendations.
Because in case one is measuring a reactive component at a frequency
range of interest, which coincidentally is around the self resonant
frequency.
Maybe selecting a low frequency range first.

73,
Kees PE0CWK


Op 16-5-2025 om 01:18 schreef W0LEV via groups.io:
I've had several requests on reading the values of inductors and
capacitors
using the NANOVNAs. I've put that together in the attachment to this
email. If you want to learn how it's done using the NANOVNA's and the
Smith Chart presentation, the attachment should be of interest to you.
For
the write-up, I've used the H4 version of the NANOVNA, but everything
should be applicable to any version of the NANOs or professional VNAs.
So,
don't belabor the point that .....waaahhhh....waaahhhh......I don't have
the H4. The technique is applicable to any vector network analyzer.

So, if interested, have a read of the attachment.

Dave - W?LEV






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*Dave - W?LEV*


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Dave - W?LEV

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