On Sun, Aug 13, 2023 at 11:57 AM, David McGuire wrote:
Hello Shirley. I am very confused. I feel I need to update my NANOVNA-H 4.
Current version is 1.1.01, build time Dec 20 2021.
The unit has a flickering blue line at the top of its screen. I am hoping an
upgrade will help.
Back to this original statement of the problem:
For SWR measurement, the 1.1.01 software build should work fine, so you may not need to upgrade. There are lots of new features in the newer versions, but nothing that should affect SWR traces.
What is the nature of the 'blue flickering line"? Could it be the blue trace line (at the top of the graphing area)? A trace line could appear to flicker if it is set for data that is not present.
If so, maybe all you need to do is disable the blue trace. On the menu go to Display -> Trace and click on any traces you are not using to disable them. For SWR, you probably want trace 1 enabled, and its format set to SWR.
