Joey and I have been using this wiring (TX1_2 and RX1_H) for a couple of months and it has been working okay.
I am experimenting with the LimeSuite API (LMS_* functions) this week and found an interesting thing: lte-softmodem is listening to RX1_L rather than RX1_H. That’s what LMS_GetAntenna says (returns 2, which is the index to RX1_L).
I moved the uplink antenna to RX1_L (the second port in the bottom row), and SpeedTest upload went up to about 8 Mbps from 1 Mbps. Disconnecting the antenna still gets about 1 Mbps, so basically we have lived without an unlink antenna for two months (!)
ARCH/LMSSDR/…/lms_lib.cpp has a commented line that forces to use RX1_H, but uncommenting it crashes lte-softmodem.
Has anyone seen this, or is this just happening to us?