NanoVNA V2 - lower frequency limit

Beware of cheap underperforming clones

As of 2022 there are many badly performing clones on the market. V2/3GHz NanoVNA uses parts like ADF4350 and AD8342 which are costly and clones have been cutting costs by using salvaged or reject parts.

See official store and look for V2 Plus4/V2 Plus4 Pro versions only to avoid getting a bad clone. We have stopped selling V2.2 versions since October 2020, so all V2 hardware that are not Plus or Plus4 are not made by us and we can not guarantee performance.

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NanoVNA V2 - lower frequency limit

Dirk 2021/08/24 02:26

Since firmware version 20200525:
https://github.com/nanovna-v2/NanoVNA2-firmware/releases/tag/20200525
... the lower frequency limit seems to be 10 kHz.

VNA-QT allows only 100 kHz (also for calibrating).
In NanoVNA-saver 10 kHz (and even lower) can be set.

Do you know, why VNA-QT doesn't allow 10 kHz or at least 50 kHz?
Is there a special reason for this limitation?
I'm asking, because I sometimes measure in the VLF range.

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