Products > Test Equipment
Siglent SDS1104X-E vs. Rigol DS1054Z Advice?
<< < (25/86) > >>
tautech:

--- Quote from: KungFuJosh on August 25, 2018, 11:13:07 pm ---
--- Quote from: Fungus on August 25, 2018, 10:59:30 pm ---High voltage.

--- End quote ---

Most of my circuits peak around 350VDC. With my current probes (Pico TA131), the x10 covers 600V, so I think I'm okay there. Is there any reason I should be concerned in that scenario?

I'm planning on getting some fixed x100 Cal Test CT2707 probes that do 1200V.

................and I also have some differential probes bookmarked. I really don't want to bother with them though if they're not going benefit me in my simple(ish) tube circuits.

--- End quote ---
There will be times when you can't place a probe reference (gnd) lead where you want so don't discount needing a differential probe at some stage.
KungFuJosh:

--- Quote from: tautech on August 25, 2018, 11:37:36 pm ---There will be times when you can't place a probe reference (gnd) lead where you want so don't discount needing a differential probe at some stage.

--- End quote ---

I definitely hear that, that's why it's bookmarked. But my builds usually have ground points with good access, and 90% of the testing is probably off the output jack anyway.

I gotta say one other point for the Siglent is the front panel design. I hate the appearance of the Rigol; it looks sloppy by comparison. Aesthetic matters, my day job is design. ;)
JS:

--- Quote from: KungFuJosh on August 26, 2018, 12:37:20 am ---
--- Quote from: tautech on August 25, 2018, 11:37:36 pm ---There will be times when you can't place a probe reference (gnd) lead where you want so don't discount needing a differential probe at some stage.

--- End quote ---

I definitely hear that, that's why it's bookmarked. But my builds usually have ground points with good access, and 90% of the testing is probably off the output jack anyway.

I gotta say one other point for the Siglent is the front panel design. I hate the appearance of the Rigol; it looks sloppy by comparison. Aesthetic matters, my day job is design. ;)

--- End quote ---
It's not about having access to a ground, is about needing to know the voltage between two points where neither of them is ground, like if you want to measure the voltage across a cathode and the grid of a cathode follower, to look at the bias while the signal is present. If you probe both in reference to ground which are swinging 20V at 100V from ground and you try to measure that signal for the time you subtracted them both in the math (AKA poors man differential probe) you are left with very little signal, you wanted to look for, as it was a small signal on top of a big common mode signal.

JS
JS:

--- Quote from: tautech on August 25, 2018, 07:09:10 am ---
--- Quote from: JS on August 25, 2018, 05:04:09 am ---<snipped>
  About FFT length, as I had said many times, I pick the data from the PC and run the processing there, I can run a FFT with the full memory depth, so for me being able to capture 24M points with 1GSa/s with some advanced trigger options is the most important feature. I wouldn't go with cheaper with low memory depth, but more expensive with more processing power wouldn't make a big difference for me. Math function limitations are in all the scopes and a bit more in some particular case doesn't make or brake the deal for me. The refresh sending the data to the PC won't be as fast but I can live with that, the times for me catching a rare event aren't that often. Once I had a fast, once in a few month event but I wouldn't trust the Siglent to catch it either, troubleshooting that wasn't easy... Also, 200kwf/s using deep memory isn't a thing anyway.

--- End quote ---
WRT capturing data for PC processing.
I'll leave this for those that aren't aware of it:
https://www.eevblog.com/forum/testgear/open-source-lxi-tools-and-liblxi-v1-0-released-for-gnulinux/msg1394796/#msg1394796

--- End quote ---

I tried to post a response to that but tapatalk wouldn't let me do it... not in the last few days.

The main thing on the answer was that seems obvious that more people is working on automated tests, as LXI brings a cheap and easy way even for every home lab to have some gear capable of running on that. Some people is leaving it pass by and I don't know why, because they are likely to be able to learn how and the ROI for that time will be pretty fast as a few measurements go by. Thermal profiles are often logged by hand in some experiments in my university, as the effect is slow enough that with a thermometer, a stop watch, paper and pencil you pretty much have your data 'logger' (sitting in a bench looking at the damn thing for way too long)

JS
Mr. Scram:
Can a Siglent 100 MHz now be hacked to 200 MHz? I can't seem to find much about that.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod