PXI Let’s define the right system configuration for your project. Talk to an Expert Today! Request a Demo Channel Sounding Configurations (USRP can also be used for Channel Sounding) PXI + UD Box (Dual Channel) + BBox™ One + BBox™ Lite PXI + UD Box (Dual Channel) + BBox™ One + BBox™ Lite PXI + UD Box (Dual Channel) + BBox™ One (2) BBox series UD Box, Single and Dual