As a follow-up to some of the Q&A in this thread regarding architectural similarities and differences that have evolved among Siglent oscilloscopes I happened to trip across various threads in the decade? long zoom-in zoom out discussions. Among the threads I forced myself to read post by post in an effort to understand what everyone was trying to communicate was this ~23 page ~2.5 year thread:
https://www.eevblog.com/forum/testgear/oscilloscope-zoom-out-quirk/msg3055600/#msg3055600By about page 23 this thread seems to have arrived at some conclusions, summarized (admittedly very simplistically) as:
1. On some scopes using some settings what you get is what’s on the display.
2. On some scopes using some settings what you get is what’s on the display plus more if you are willing and know how to look for it.
3. On some scopes what you can see and find is substantially according to that particular scope’s default setting.
4. On some scopes what you can see and find is substantially according to that particular scope’s default setting - BUT that setting can be overridden to some extent, ie to the extent the scope provides “memory management”.
5. For years (a decade?) the zoom-in zoom out discussions continued (and maybe still continue) but by about page 22 in the linked thread it seems that Siglent decided to adopt/introduce a new(er) type of user configurable memory management.
Among the reasons/benefits for the new memory management functionality is an enhanced capability to view and navigate waveforms and data that might have otherwise been off the display. It seems (I could be wrong about this) that the new/newer/enhanced user memory management capability didn’t make it into the 2000X Plus but did make it into the 2000X HD. Probably best to ask tautech et al which other Siglent models have the latest and greatest memory management, and if there are further distinctions in functionality among those that do.
Just putting these history bread crumbs out there for anyone else that would like to shorten some of the history lesson without becoming an oscilloscope archaeologist.
PS, It’s possible I’m either wrong about some of this or missing some important facts and nuances, so bring it on. No try, no learn