Hi all,
I am interested in checking the MIMO (well, actually it's SIMO for now) work mode for my LimeSDR with GNURadio (v.3.8.3.1). Getting into the MIMO mode was simple by setting RxChannel = A+B, but I got stuck just after this...
In the attached screenshots you can see the spectrum and constellations I got for QPSK. As you can see, one of the channels offers terrible performance :( Have you encountered something similar? This is strange to me, I didn't expect such a major difference between the 2 channels performance. Maybe I'm doing something wrong...
Also, can you advise on some blocks I can use for 2 antenas detection to improve performance or point me to some documentation or examples for using this mode?
Thank you,
Evgeny
Screenshot from 2021-10-28 15-35-28.png
Screenshot from 2021-10-28 15-35-45.png