Whitepaper
Faster Spectrum Measurements for X-Series Signal Analyzers
This Keysight application note details methods for accelerating spectrum measurements using their X-Series signal analyzers (CXA, EXA, MXA, PXA, UXA). The paper focuses on software and hardware optimization techniques to reduce measurement time in automated test environments. Specific optimizations include disabling the display during automation (“DISP:ENAB OFF”), utilizing single sweep mode initiated with “INIT:CONT OFF”, minimizing SCPI transaction count by combining commands, avoiding unnecessary wait statements (*WAI, *OPC?), and reducing mechanical attenuator cycling. The document also highlights newer features like HiSLIP communication protocol for faster data transfer compared to VXI 11.3, as well as software improvements in areas such as EVM measurements (5G NR/Wireless LAN) and alignment procedures (“CAL:EXPIRED?”). Performance gains are illustrated with graphs showing time savings from display disabling, demonstrating potential reductions in overall test duration.