@tve,
I am wondering if the new signal strength feature would help me understand this effect. It is touted as a Boron feature but it works for the electron as well. As you can see from the screenshot below, I can now see the connection technology, quality and signal strength.
So, as I test this antenna against others, I think I need to look at both the strength and quality metrics. This information could be of interest to you as well. Happy to share the code for this if needed.
Thanks, Chip