Testing My Sawbird with a Nano VNA

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Conrad Cardano

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Feb 25, 2026, 2:35:32 PM (2 days ago) Feb 25
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I have seen others do this in Google Groups.  Somehow, I'm not getting this right.

I have a 20db attenuator attached to the end of Port S11.
I have set my range from 1GHz to 1.5 GHz.
I did calibrate it.

What did I do wrong?

Thanks for reading this.

Conrad

My-Nano-VNA.jpg

Alex P

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Feb 25, 2026, 2:47:33 PM (2 days ago) Feb 25
to Society of Amateur Radio Astronomers
You need to set the LogMag display plot Channel to CH1 Through  ( S2 )

Conrad Cardano

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Feb 25, 2026, 2:49:55 PM (2 days ago) Feb 25
to Society of Amateur Radio Astronomers
Thank You, Alex.

It's working well now.

b alex pettit jr

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Feb 25, 2026, 3:02:10 PM (2 days ago) Feb 25
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Jan Lustrup

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Feb 25, 2026, 4:56:24 PM (2 days ago) Feb 25
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I use 40 dB attenuator on port S11 for Sawbird+H1 lna’s.

Jan

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