You don't often see Smith charts at audio frequencies because transmission-line techniques are less common, as is complex impedance matching in general. No reason why they couldn't be supported, of course.
The QuantAsylum QA403 is very nice, hardware-wise, for those who aren't content with sound cards. More expensive than a NanoVNA but still well under four digits.
-- john, KE5FX
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-----Original Message-----
From:
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[email protected]> On Behalf Of Neil Preston W0NRP via groups.io
Sent: Monday, November 11, 2024 8:11 AM
To:
[email protected]Subject: [nanovna-users] Audio frequency version of a NanoVNA
Is there any practical way to make a VNA that provides the same measurements over the frequency range of ~10 Hz to maybe 1 MHz?
