Looking for someone that can teach

[Daniel Ging Wisotzkey]

Hi Everyone,

I am looking for someone who knows about Nano VNA's. I would like to have a program for our activity meeting that can show us what and how a VNA can be used. How you set-up some of the different functions and just make it easier to use.

Thank you, 73,

Dan, WY7DG 

[SCOTT SANDERS]

I am interested in this.

Scott

On Nov 4, 2025, at 7:24 AM, Daniel Ging Wisotzkey <dgwis...@gmail.com> wrote:



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[Don]

This is perfect timing, Dan! My NanoVNA simply sat on a shelf for the
past year. And now I intend to use it to verify the impedance of freshly
terminated LMR200 and RG8X coax cables from a Wouxun and Elecraft inside
my shack out to their antennas.

My metric may qualify as the simplest of all NanoVNA measurements. With
a 50 ohm load, a dot on the 50 ohm resistive axis of the NanoVNA's Smith
Chart indicates good coax. It's OK if the dot's slightly smeared.

I look forward to learning more about the NanoVNA from other people at
the activity meeting.

Thank you, 73, Don, KB7RPU

I am interested in this.

Scott

[Michael Leatherman]

I've signed up to lead this activity on the 19th.

Topics will be:

- book stuff (e.g., what is impedance)

- calibration

- measuring antenna impedance

- testing coax

- testing ferrite mixes

- using computer control

There will be some up front talking about the things a VNA can do and then it will be fairly hands on.  I have a few NanoVNAs that I'll bring, but if you have your own, you'll likely get more out of the activity.  The smaller versions are available on Amazon for about $50.  I have bought the AURSINC brand and have not had issues.  If you email me directly (mlea...@gmail.com), I can send you a link.

Thanks.

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Michael Leatherman
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[Charles]

This will be good for me to better understand. Thank you, sir. 

Regards,

Charles

And, just like that, the bands went away.

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[Daniel Ging Wisotzkey]

Mike, do you want us to bring anything for checking measuring, like antennas, coax and all?

Dan WY7DG

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[Michael Leatherman]

That's a great point, Dan.

I'll bring a number of examples, but participants should bring anything they want to test:

- antennas and dummy loads (anything that goes at the end of coax; smaller is better for this activity, just make sure it works within the frequency range of your VNA)

- attenuators, band pass filters, etc (anything that would be in line with coax)

- coax

- ferrites (there's a specific fixture that's needed that I'll bring)

- adapters to connect everything together to the connector on their VNA

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Michael Leatherman
mlea...@gmail.com