On Mon, Aug 5, 2019 at 07:07 AM, <hugen@...> wrote:
Not every si5351 can be stably overclocked to 1200MHz. As the temperature
increases, the internal VCO operating limit frequency of the si5351 will
decrease. If you notice a significant spike(>0dB) in your nanoVNA at 300 MHz
or 900 MHz, I recommend that you use the 800MHz firmware.
You can check your hardware with this firmware:
/g/nanovna-users/message/5445It includes latest changes from @edy555, @hugen79, @qrp73 repositories and performs si5351 PLL check. If you see red PLL icon near battery icon, it means that your si5351 works unstable.
Also, this firmware supports @cho45 NanoVNA WebApp and has no freezes and errors. :)
