Hi John
The 900 MHz NanoVNA switches from using the oscillator fundamental to using
a harmonic at 300MHz. The trouble is that the oscillator chip isn't
specified to work up to 300MHz. Although most work ok, some cause a glitch
(particularly at high temperatures).
The software fix is to install the 800 MHz version of the firmware, which
switches to using a harmonic at a lower frequency (presumably around 267
MHz).
See the group wiki & files for advice on installing firmware.
Mike
toggle quoted message
Show quoted text
On Sun, 25 Aug 2019, 20:47 John Herleman, <jherleman@...> wrote:
Would it be possible to tell us - in layman's terms - how the spike at
300 MHZ can be corrected through software?
