Apologies for my ignorance, but is this a DPO (Digital Phosphor Oscilloscope) machine? I can see that it is labelled SPO (Super Phosphor Oscilloscope), which could be an indication or just a marketing exercise, whereas the virtually identical LeCroy T3DSO2000A oscilloscope is labelled DSO (Digital Storage Oscilloscope).
Based on what it can do, including the ability to spot transient occurrences within repetitive signals, as well as the 256 colour gradation, I am inclined to think that the Siglent model is indeed a DPO. But does it employ the typical parallel data processing architecture that is specific to DPOs, thus eliminating the dead time between triggering events in DSOs? If true, does it mean that it uses the colour gradation to display the z-axis information for the number of similar occurrences of a waveform?
Or, instead, it simply has the adjustment for trace persistence that most DSOs provide, and only serial data processing?