phase noise PXI signal analyzer RF phase noise vector signal analyzer RF testing offset frequency analysis PXIe VSA noise floor

Introduction Phase noise is one of the most critical specifications in RF and wireless testing — especially in systems where signal purity, spectral integrity, and jitter are crucial. PXI-based vector signal analyzers (VSAs) offer compact, high-performance phase-noise analysis, but understanding their datasheets can be tricky. This guide explains how to read phase-noise specs accurately, interpret offset frequency […]