I got a Nano-VNA-H off eBay for Christmas. It has a black plastic case with a Q-code on the label that just seems to contain nanovna.com according to my iPhone. The label also has a serial number 19110234. The label lists 3 frequency ranges covering 50KHz-1.5GHz .
When powered up CAL->Version gives the firmware version as 0.2.3-3-g8ac9166 and build time October 18 2019
None of this seems to tell me which hardware version I have received. I've trawled the messages on here and can't see how to find it. I would like to know because I want to update to later firmware and there are comments in the release notes about 1N4148 or schottky diodes in different hardware versions needing battery voltage calibration commands. Do I really need to pull the hardware to bits and examine the PCB?
Thanks, Alan G3XAQ
