SA Measurement Issues - Optimizing dynamic range for Distortion Measurements
A review of techniques and analyzer adjustments to optimize the dynamic range without significant contribution from the analyzers internal distortion is covered.
About this course
A fundamental factor in spectrum analysis is, dynamic range, the ability of an instrument to distinguish a small signal in the presence of a large one. When measuring the combination of a signal and distortion, the level at the input mixer dictates the dynamic range. The ideal mixer level can be determined from three specifications: second harmonic distortion (SHD), third order intermodulation (TOI) distortion, and DANL. A review of techniques and analyzer adjustments to optimize the dynamic range and measure DUT distortion without significant contribution from the analyzers internal distortion is covered.