With new beta FW for the SDS2000 series there will be additional memory depth available as an option and will Siglent enable an additional memory depth option for the SDS1000X series too?
It wouldn't surprise me at all if they did.
I don't think we'll see that on the SDS1000X. On the SDS2000 it seems they replaced the original firmware (v1) which was a bug fest they were incapable of fixing with a port of the firmware for their new SDS1000X scopes (v2), and in the process were probably able to free up some memory which they can now offer as another option (which quite frankly should have been a free upgrade for all SDS2000, considering how long their users had to live with the shitty firmware!). It's certainly not something they designed into the scope from the start. The SDS1000X was designed with the firmware it runs on, so there won't be any similar memory savings.
I guess we'll see when the teardowns arrive, which should be able to establish how much memory there is in these things.
Did you note one major change. (and it is Same in SDS1000X !)
Rev 1.0 there was history as fast segmented memory together.
I do not put my old table about speeds and memory here.
Rev2.0 have all different just in this place.
History "mode" is not anymore at all this fast segmented memory acquiring.
History mode is now always on bacround and it is still up to 80000 acquisitions but now it works like history FIFO and you stop scope and you can see what have happend in last times and you can search waveforms (how much, depending memory and speed settings) But it works now in bacround and speed is just what is current normal visible wfm/s speed. Not anymore max up to ~400kwfm/s (measured).
If we calculate how much there is memory needes in best (worst) case it is much and this memory need also be available quite fast.
Rev 2.0 have separate fast "segmented" memory acquisition. (even faster than Rev1.0)
It can up to 500kwfm/s (segments) speed, depending memory and timebase settings.
But now maximum amount of segments is 1024. (Previously up to 80000)
This, same, is also in SDS1000X.
It also have same max 1024 segments in segmented (sequence as it read in upper menu) and also in SDS1000X its max "up to" speed is 500kwfm/s
(but limited 1024 segments) Perhaps this change in SDS2k affect something in memory side what is now available for this option?
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Other things related to video
on the video it looks like Dave measure burst speed when he measure normal wfm/s update rate. He did not measure average wfm/s speed what is bit lower and perhaps more recommended for claim wfm/s speed if we do not tell we are talking highest short burst speeds, and this is in SDS1000X over 70kwfm/s. (average speed need include display refresh cycle or other system time gaps in acquisition and it include in "up to" 60kwfm/s speed. It is continuing average even if measure every trig events over second or hour.)
FFT cursors.
Just select cursors source math or channels.. and both tracking cursors may have separate source.
FFT there can use splitted or not splitted window but also there can me YT- splitted for YT zoom (this zoom have not relation to FFT, FFT use fixed samples.
Edit: segments max count is up to 80000 in SDS1000X after new FW 1.1.2.1.1