An early version of 4.2, that's probably why you do not have the
SD slot. You can solder one yourself ...
AFAIK the N variety was only made with NanoVNA V2, a different platform.
Only difference from the regular V2 is the metal case and the SMA to N
adaptors.
A few people made the same modification on their own, but it is a bit of a
hassle as you would
need to get N calibration loads ...
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On Tue, 11 Jan 2022 at 03:18, Howard Waxman, WZ4K <wz4k@...> wrote:
Thank you. Bought from R&L on 4/9/2020 and since updated to V 1.0.39;
Kernel 4.0.0. STM32F303xC
I'm interested in the N-connector variant and wonder are they really more
robust? No complaints with what I have.
HW
