The Advanced Debug Toolkit’s History Mode lets users scroll back in time to isolate signal anomalies and quickly determine the source. History Mode is always running and available for use. At any time, users may scroll through previous acquisitions using the Adjust knob or by selecting a specific application from the table on the touch screen. The History Navigation section of the History Mode dialog allows automatic scrolling through the waveform. History Mode recalls actual waveforms, not simply screenshots from previous acquisitions. Once waveforms are recalled, they may be analyzed with measurements, math functions, zooms, and serial decoding.