Transmit and Receive Simultaneaous Problem (USRP N200)

[Mario Rölli]

Hello Everybody

It's the first time using this channel. I'm kind of new to the USRP and Gnu Radio thing and also at my limits with ideas. I have a USRP N200 with a SBX Daughterbaord. I am using the UHD Version 4.4 and on Windows 10. 

My Goal is to send a Testsignal with the Tx/Rx port and Receive it with the Rx2 Port. When I test sending and receiving separately, they work fine. But if I test both together, I get nothing but nonsense on the Rx2 port. What does not work together? How do I have to set it up, so that the Ports work fine?

I am currently at a loss and hope that someone can help me. 

Attached are 3 pictures, the individual elements and everything together.

P.S: If I am using this network incorrectly, please feel free to tell me^^

TheFullFlowgraph.png
Description: TheFullFlowgraph.png

TheReceiving.png
Description: TheReceiving.png

TheTransmitting.png
Description: TheTransmitting.png