Every now and then I use my nanoVNA and I forget that after changing the display configuration and then choosing Config/Save, nothing seems to happen and I loose all the settings. I have to use Calibrate/Save/Save0 if I want to have it remember all the settings after a power cycle. So, it would make sense that Config/Save would do that since I am not changing the stimulus or the calibration just the configuration of the display (which traces do what, what the value/div, etc) it would be nice to have it return to those configurations when turned on next time.
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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What the heck does Config/Save do?
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