Is this antenna good or bad, and for which frequency is it useful? A question I am often asked. Because a lousy antenna reduces the range of a device considerably. Or another question: Did the supplier cheat on this filter? At the end of this video, you will be able to answer these questions with confidence. And you know everything you always wanted to know about how to properly use a NanoVNA and the Smith Chart.
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Links:
Affordable NanoVNA: s.click.aliexpress.com/e/_DEqNUaV or amzn.to/4gKjDrp
LiteVNA 4" (new "nanoVNA"): s.click.aliexpress.com/e/_A6jaWD or amzn.to/3Y0Z56B
LibreVNA (2 ports): s.click.aliexpress.com/e/_DmOOZDX or amzn.to/3Bp3XtD
2.8" SMA LiteVNA: s.click.aliexpress.com/e/_DeopqG1
4" Type N NanoVNA V2: s.click.aliexpress.com/e/_DluAil7 or amzn.to/4gCJTUJ
RF Demo Kit: s.click.aliexpress.com/e/_AnJR0X
nanoVNA Kit PCB: s.click.aliexpress.com/e/_98dlH7

Forum (Lots of info, up-to-date): nanorfe.com/
VNA_QT Software: github.com/nanovna/NanoVNA-QT/releases
NanoVNA-Saver: github.com/NanoVNA-Saver/nanovna-saver
W2AEW Channel:    / @w2aew  

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