Products > Test Equipment
Siglent - 11/20 - New SDS1104X-U, 4 channel 100MHz, 1Gsa/s economy oscilloscope
Fungus:
--- Quote from: drussell on January 26, 2021, 06:47:04 pm ---
--- Quote from: Fungus on January 26, 2021, 06:18:03 pm ---Rigol also has some features that the Siglent doesn't, eg, plot a rolling graph of measurements over time.
--- End quote ---
What? There's no "roll mode" or whatever they call it?
--- End quote ---
There's a standard "roll mode" for the channel waveforms but the Rigol can overlay a rolling graph of the measurements (eg. RMS, VPP, etc). I believe Siglents can't do that.
(and I'm sure I'll be quickly slapped down by the Siglent police if I'm wrong).
Fungus:
--- Quote from: drussell on January 26, 2021, 06:49:08 pm ---I would rather get the ubiquitous Rigol if all other things are equal, even simply due to track record and number sold alone, so any contender needs to be way better bang for the buck by somehow either being far less expensive or way more capable in some ways that would make it more useful to me, hence my interest in the SDS1104X-U vs DS1054Z specifically, as I think I already basically understand where the SDS1104X-E vs DS1054Z divide ends up.
--- End quote ---
Yep. There's nothing wrong with the Rigol. It works, it shows wiggly lines on screen, it's very reliable and solidly built.
tautech:
--- Quote from: drussell on January 26, 2021, 06:49:08 pm ---
--- Quote from: Fungus on January 26, 2021, 06:18:03 pm ---Rigol also has some features that the Siglent doesn't, eg, plot a rolling graph of measurements over time.
--- End quote ---
What? There's no "roll mode" or whatever they call it?
--- End quote ---
SDS****X-* models all have 2 roll modes, an automatic one when the timebase is slowed beyond 50ms/div and a dedicated roll mode.
Auto waits for the memory buffer to be completely filled before displaying anything while the dedicated roll mode displays the waveform in RT.
The Roll button lets you enter and exit the dedicated roll mode.
Saelig has the SDS1104X-U as do I in NZ and as an EEVblog member you can ask for their EEVblog discount in their discount thread:
http://www.saelig.com/sds1000x-u-series/sds1104x-u.htm
drussell:
--- Quote from: tautech on January 26, 2021, 08:18:33 pm ---SDS****X-* models all have 2 roll modes, an automatic one when the timebase is slowed beyond 50ms/div and a dedicated roll mode.
Auto waits for the memory buffer to be completely filled before displaying anything while the dedicated roll mode displays the waveform in RT.
The Roll button lets you enter and exit the dedicated roll mode
--- End quote ---
What is the maximum time limit on the rolling mode, how does it handle that or how slow of a timebase can you set? Do you happen know if it is internally running all the time in roll mode or does it always try to sample after a trigger threshold is crossed. I suppose I really need to read up on how the various trigger options even normally works on these modern DSOs... :-\
I haven't downloaded any of the Siglent manuals yet, still working my way through the DS1054Z book. I wish there were online emulators for the UI on these things, it is rather tricky to understand the various nuances without having the actual instrument in front of you, but especially in these days of extra virus annoyance doing any of the usually easy, proper in-person evaluations is likely to be a particularly arduous to downright impossible task.
tautech:
--- Quote from: drussell on January 26, 2021, 08:39:10 pm ---
--- Quote from: tautech on January 26, 2021, 08:18:33 pm ---SDS****X-* models all have 2 roll modes, an automatic one when the timebase is slowed beyond 50ms/div and a dedicated roll mode.
Auto waits for the memory buffer to be completely filled before displaying anything while the dedicated roll mode displays the waveform in RT.
The Roll button lets you enter and exit the dedicated roll mode
--- End quote ---
What is the maximum time limit on the rolling mode, how does it handle that or how slow of a timebase can you set? Do you happen know if it is internally running all the time in roll mode or does it always try to sample after a trigger threshold is crossed.
--- End quote ---
Timebase range is listed in datasheets. X-U = 2 ns/div-100 s/div
Sort of running continually and it's called History mode.
Everything about the modern DSO is trigger related. ;)
https://siglentna.com/wp-content/uploads/dlm_uploads/2020/11/SDS1000X-U_DataSheet_DS010AH-E01A.pdf
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