Hi Luca Coelho,
the available documentation [1] [2] on the Intel Wireless-AC 9260
doesn't explicitly state that operating it with just one antenna is
impossible, just that it would be necessary for optimal performance.
Operating that module with wifi-only and just one antenna connected
seems to work somewhat ok, but we had some deauth issues, which could be
unrelated.
Operating both wifi+bt with just one antenna, makes wifi loose packages
while bt is active. I hard-coded the `valid_{t,r}x_ant` to `1` in the
nvm parser code, which seem to improve this issue somewhat, but bt
pairing seems to be unstable.
But the general question is: Is that module even designed to operate
with just one antenna connected and are wifi and bt issues to be
expected in that case? Bt would not be strictly required in our use-case.
If it should work with just one antenna, do you know of any available
tools to create those nvm image files or overwrite the nvm with the
correct antenna configuration? Or is there another way for this to be
configured?
Thanks a lot and kind regards,
Claudius Heine
[1]
https://www.intel.com/content/www/us/en/support/articles/000031221/wireless.html
[2]
https://www.intel.com/content/dam/support/us/en/documents/network-and-i-o/wireless-networking/intel-wifi-adapter-information-guide.pdf