Hi
I have now upgraded my NanoVAN with the NanoVNA-H__800_ch_20190924.dfu firmware. However, as the attached picture show there is not much real change except that the abnormality has moved down in frequency. Is it the right firmware I have loaded since I can set a stop frequency to 900 MHz. I didn't expect that.
Thanks Warren for clarifying the use of the harmonics in the NanoVNA. I don't know the NanoVNA anatomy as well as I know the RFzero. They are indeed nice devices.
Bo