cross talk

[Rehammar]

Hi,

I am trying to figure out cross-talk data for the different USRPs. I have seen some figures in this forum of ca -30 dB between Tx and Rx. Is this correct? In principle I am mostly interested in the coupling from Rx to Tx and -30 dB would be acceptable for my application, but I would like to have this confirmed.

BR,

Robert

[cochenob]

This sounds in line with my experience.  This post may help too.

I've tried things like transmitting with one USRP, and receiving on another...but it's not like you turn the Tx1/Rx1 chain 'off' if you just want to receive on the Rx2 path.  So...you'll likely see the crosstalk anyway if you desire to transmit and receive on the same frequency.

[ErikL]

Exact cross talk levels have not been fully characterized, but it seems to be consistent around 30db or less. We typically recommend two devices if cross talk presents a challenge for a specific application.