Products > Test Equipment
Siglent SDS1104X-E vs. Rigol DS1054Z Advice?
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Fungus:

--- Quote from: KungFuJosh on August 24, 2018, 08:34:50 pm ---
--- Quote from: Fungus on August 24, 2018, 08:04:15 pm ---Don't miss the Siglent UI apologetic thread above  :popcorn:

--- End quote ---

 :-DD Between the two of you I can't decide which way to go, but at least it's entertaining.

--- End quote ---

I'm just saying that I wouldn't trade a better response in the vertical controls for the row of buttons down the left side of my Rigol. I know which is more useful and which will waste more of my time.


--- Quote from: KungFuJosh on August 24, 2018, 08:34:50 pm ---Question: If YOU were running 3 or 4 channels at 100Mhz or better, would you really be satisfied with 250M per channel? I know I'm generally not doing that, but this is a theoretical question. ;)

--- End quote ---

It depends on what you're looking at. If you're actually looking at four signals with 100MHz base frequencies then, no it's not enough.

Then again, a 100Mhz oscilloscope isn't suitable for doing that - you'll see four 100Mhz sine waves on screen but nothing much in the way of harmonics. In that scenario you should be looking at 300MHz+ oscilloscopes, maybe 500Mhz for real signal fidelity.

Back in real life: I know I'm only going to look at signals in the tens of MHz range on my DS1054Z, maybe 50MHz tops. In that scenario 250M per channel is enough for me (it's 5 times the Nyquist limit, plenty for signal reconstruction).

If we apply the same criteria to the Siglent then I don't believe the extra sample rate will make much real difference.

5x Nyquist vs. 10x Nyquist? Not much difference, maybe a pixel here and there.

(nb. I'm willing to look at some screenshots if anybody can demonstrate otherwise...)

OTOH: If you're going to hack the Siglent to 200MHz and look at four simultaneous signals with 100MHz base frequencies then it will come into play (though maybe not as much as you might think - Nyquist theory works, bitches!)
KungFuJosh:

--- Quote from: Fungus on August 24, 2018, 09:14:48 pm ---OTOH: If you're going to hack the Siglent to 200MHz and look at four simultaneous signals with 100MHz base frequencies then it will come into play (though maybe not as much as you might think - Nyquist theory works, bitches!)

--- End quote ---

You crack me up man. Reading the Siglent thread I see two big plusses in the Rigol's favor:

1. the side buttons like you mentioned
2. firmware update simplicity

In the Rigol you just dump the file on the USB and poop it in. The Siglent sounds like extra work for every update.

That leaves me here:

Rigol Pros:
Physical side buttons/UI simplicity
Price
Firmware update simplicity
Laziness *(already on my bench)

Siglent Pros:
Higher multi-channel sampling
1M FFT
400VDC input (vs 300VDC) (yes, I know it doesn't matter, but a plus is a plus)
Optional extras that aren't worth the money especially thanks to toys like the AD2


I'll have to test the Windows remote software for the Rigol and see if I hate it or not. If it's okay I suppose that neutralizes the web server on the Siglent...not that I think I'd use either too much.
ttelectronic:

--- Quote from: KungFuJosh on August 24, 2018, 09:31:05 pm ---I'll have to test the Windows remote software for the Rigol and see if I hate it or not. If it's okay I suppose that neutralizes the web server on the Siglent...not that I think I'd use either too much.

--- End quote ---
DSRemote is Linux based, but I find it a lot faster and more useful than the Windows tools by Rigol. Especially when exporting large amounts of data from the scope. I use a virtual box of linux to run it. https://www.teuniz.net/DSRemote/
Fungus:

--- Quote from: ttelectronic on August 24, 2018, 09:41:14 pm ---
--- Quote from: KungFuJosh on August 24, 2018, 09:31:05 pm ---I'll have to test the Windows remote software for the Rigol and see if I hate it or not. If it's okay I suppose that neutralizes the web server on the Siglent...not that I think I'd use either too much.

--- End quote ---
DSRemote is Linux based, but I find it a lot faster and more useful than the Windows tools by Rigol. Especially when exporting large amounts of data from the scope. I use a virtual box of linux to run it. https://www.teuniz.net/DSRemote/

--- End quote ---

Yeah, the official Rigol software is 1Gb of garbage.
Fungus:

--- Quote from: KungFuJosh on August 24, 2018, 09:31:05 pm ---Siglent Pros:
Higher multi-channel sampling
...

--- End quote ---

For the reasons (I tried to explain) above, I wouldn't get too hung up on that number if you're not planning on hacking it to 200MHz.
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