I am using the ADRV-DPD1/PCBZ Reference Design platform. This is the standard 3 card evaluation setup - Radio Card, FMC Interposer Card and the Xilinx ZC706 platform. When communicating with the AD9375 TES GUI (version 0.3.8), I can successfully control Tx 1 (I can see a tone on a spectrum analyzer, control the attenuation, etc.) However when I exit the GUI and switch to the AD9375 Embedded DPD Interface GUI (v 3.000), I can connect, load waveform but cannot turn on the Tx - i.e. I dont see anything on the spectrum analyzer. I have tried to follow the step-by-step instructions in the AD9375 SUG but no success. Any idea as to what I am doing wrong??