On Mon, Nov 11, 2019 at 04:34 PM, Sam Reaves wrote:
1. Spur on display around 300MHz. This appears to change and amplitude but is
always there.
2. Spurious data on displayed in the smith chart green trace. This comes and
goes.
Did you tried NanoVNA-Q firmware? It should fix that.
I also working on further improvement, but don't know if I will complete it because si5351 has complicated behavior when you trying to use it up to 300 MHz