Hi, We are implementing a TDD system and using the TRX-A port in lab testing. To facilitate TX/RX switch, we built control logic to control the GPIO pin to flip SW1 on Page 7 of the published E310 daughter board schematics.
What we noticed are: 1. The RX ports cannot be cut off, so we must disconnect antenna if we want to use TRX port only. 2. The received signal power from TRX is about 22 dB less than that received from the RX port, given the same TX power and testing configuration. The above observations are consistent across multiple E310s between my company and our collaborators. So we have the following questions. (Q1) Is this by design, or we might have missed something in our setup? (Q2) If you think our design or setup may have problems, could you please offer some suggestions? Thanks, Arnold _______________________________________________ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com
