On Sat, Jan 25, 2020 at 02:06 AM, Gyula Molnar wrote:
" is this problem even without USB connection?
Does it return a negative number even when there is no connection between your computer and nano? "
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Hi Gyula,
The NanoVNA-H4 has been working well, except for the center frequency above 1 GHz glitch. The lock-up occurs regardless of whether the NanoVNA-H4 is connected to a computer or not. The work around for now is to set the frequency limits using start and stop, rather than center frequency and span.
Ken Liao's release was developed on a Linux machine and there are some Windows related issues that he didn't foresee.
No hardware issues have been observed so far. The above firmware related issues are fixable. The 4" display is a welcome improvement over the 2.8" NanoVNA. I have noticed there are still some occasional display refresh artifacts, as on the NanoVNA-H, and may be something we just have to come to live with.
Hope your unit arrives soon.
- Herb
