Take it out of the case you've mounted it in and see if something is intermittently pressing on the touchscreen. If it works as you originally received it with no housing, you can go from there.?
On Fri, 7 Aug 2020 at 7:15 PM, Steve Haber<haber.steve@...> wrote: My nana VNA it seems to be doing very weird things. The first picture is the current firmware loaded version. The second picture is what the screen looks like when I first power it on. The third picture is after calibration. Can't seem to get it to stabilize. Any ideas? I wonder if I got a crappy one?
