Hi, I am interested in implementing a pulsed CW radar using a single channel (X310/UBX) via the TX/RX antenna port.
My initial implementation works, but not that well. In this implementation, I continuously stream the receiver with antenna set to TX/RX and I simultaneously send timed transmit bursts for each pulse. The USRP automatically switches the T/R switch to transmit during the transmit bursts and then back to receive when the transmit burst completes. The switch time seems good enough for my application. However, the transmit pulse doesn't look as expected at the beginning - likely due to start up filtering in the DUC. I am considering a different implementation such that transmit and receive both run continuously and I just manually "hot-switch" the T/R switch between transmit and receive using timed commands. I have 2 questions: 1) is there a problem with this approach (e.g., possibility of damaging the device)? 2) how do I manually control the T/R switch? (I am expecting I need to use the GPIO registers, but I can't find the relevant info in the manual). Rob
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