I got hold of a Ettus Research prototype board (USRP 230) that I am looking for help with. It has a XiLinx XC7A100T FPGA and an Analog Devices AD9361 transceiver chip. Two SFP+ ports, SMA ports for PPS, GPS, 10Mhz ref signal, multiple RX/TX. There are three ports/connectors that I cannot...