Michael Dickens

@ab-kbg Assuming this testing was on UHD 3.15.0.0 or 3.15.LTS ... yes? Please clarify. do you know if this is an issue with the recently tagged UHD4.0rc1? It's worth testing...

Tagging @michael-west ... since some Ettus body needs to know about this ... and can hopefully comment on / verify the issue.

> @michaelld I did test 4.0.0.0-rc1 (I had to update FPGA version also) just now. `linux; GNU C++ version 10.2.1 20200723 (Red Hat 10.2.1-1); Boost_106900; UHD_4.0.0.HEAD-0-g4c8ba577` > The behavior of...

> Can one do TX and RX on the same antenna port at the same time? Nope. Can do -either- TX -or- RX.

@NI-LAm I stand corrected: I am told that one -can- do -simultaneous- TX and RX on the same TX/RX port (at least on the X310; I'm checking for others). The...

See for example this [GRCon 2017 presentation](https://www.gnuradio.org/grcon/grcon17/presentations/full_duplex_radio/Adam-Parower-Full-Duplex-Radio.pdf) discussing the topic of how to do self-interference cancellation when using the same port for TX and RX.

@akhila-rao a couple thoughts: (1) UHD 4.2 has not been released; it is still in beta. Please use the latest 4.1 release instead and see if that works & if...

@bmagistro thanks for creating this public UHD issue. I've tagged it in our private / internal issues as you can see. I've also marked is as "escalated" since I think...

I'm working with the customer via Ettus Support email. I'll test things out on UHD 4.0 when I get a chance soon. We're slowly working on getting UHD4 build for...

@cclamb not resolved to the best of my knowledge ... maybe the OP can re-test & report back anything related to UHD 3.15 .. or UHD 4.0 even better?