SANTA ROSA, Calif.--(BUSINESS WIRE)--Keysight Technologies, Inc. (NYSE:KEYS) today announced the M9451A PXIe Measurement Accelerator, a high performance FPGA processing card, which speeds envelope tracking (ET), and digital pre-distortion (DPD) characterization for power amplifier test. With the M9451A, engineers can make closed/open loop DPD and envelope tracking measurements in tens of milliseconds for up to a 100 times speed improvement. The M9451A is now integrated with the RF PA/FEM Charac