Operating on both DPO70000SX 70 GHz real time and DSA8300 equivalent time oscilloscopes, PAM4 Analysis Tools enable oscilloscopes to characterize PAM4 signals from 13–56 GBaud while supporting both optical and electrical domains. Features in toolset include ability to analyze full waveforms or correlated waveforms, reference level settings for pass/fail analysis of multi-level thresholds, numerical rise/fall times for every LSB, MSB level, and built-in clock recovery using PAM-specific PLL models.