I measured the impedance on rf ports and I found no impedance (0 Ohm) in main port and 1.3 Ohm on aux port. This seems strange, anybody could verify please if his board has same values?
I’m not sure if you have read this document yet: 4116238 AirPrime MC7455 Product Technical Specification r14.pdf (1.9 MB) .
I observe that the impedance on RF ports is mentioned in section 4.RF Specifications. Hope this information will be helpful for you.
Yes I already read it but it speaks only about antenna impedence, different thing…
I found a command to set AUX as primary antenna but now I can’t find it, do you know it?
You can use the command !RXDEN in document “4117727 AirPrime EM-MC74xx AT Command Reference r4.pdf” in page 63 section 4.Diagnostic Commands (4117727 AirPrime EM-MC74xx AT Command Reference r4.pdf (1.4 MB) ).