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| Siglent SDS1104X-E vs. Rigol DS1054Z Advice? |
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| nctnico:
--- Quote from: Fungus on August 24, 2018, 05:15:57 pm --- --- Quote from: nctnico on August 24, 2018, 04:46:49 pm ---the FFT on the GW Instek is 1Mpts versus 128k. --- End quote --- Yes, but the R&S is 10bit so it'll be better. Long buffers are used to compensate for lack of bits. :popcorn: --- End quote --- No. Short FFT reduces the ability to see both a sensible part of the signal and the frequency domain in a sensible way. Last year I worked on a project where my GW Instek GDS2000E (the version without digital channels) really helped me because of the input filtering and long FFT. It was just perfect for the job. |
| Fungus:
--- Quote from: KungFuJosh on August 24, 2018, 05:40:44 pm ---Haha, that's true. But I do like the idea of it. ;) More than that I like the idea of not being limited by the DS1054Z. If I ever need more, I have to replace the Rigol. With the Siglent, I might not need to add to it, but if I want to, I can. --- End quote --- Have you seen the price of the Siglent logic analyzer option? It costs nearly as much as the 'scope. You can buy an Analog Discovery 2 for much less than that 'upgrade'. An AD2 will do 16-channel logic analysis and be much, much better for Audio work (it has 14 bit ADC, AWG, can do Bode plots, etc.). In fact: For your stated needs you might want to forget the 'scope for a while and get an Analog discovery instead. https://store.digilentinc.com/analog-discovery-2-100msps-usb-oscilloscope-logic-analyzer-and-variable-power-supply/ |
| KungFuJosh:
--- Quote from: Fungus on August 24, 2018, 06:08:16 pm ---Have you seen the price of the Siglent logic analyzer option? It costs nearly as much as the 'scope. You can buy an Analog Discovery 2 for much less than that 'upgrade'. An AD2 will do 16-channel logic analysis and be much, much better for Audio work (it has 14 bit ADC, AWG, can do Bode plots, etc.). In fact: For your stated needs you might want to forget the 'scope for a while and get an Analog discovery instead. https://store.digilentinc.com/analog-discovery-2-100msps-usb-oscilloscope-logic-analyzer-and-variable-power-supply/ --- End quote --- I have no interest in the logic analyzer. I would probably go that AD2 route if I ever need it. Then I would have the Siglent plus the AD2, which still sounds like a better combo than the Rigol and the AD2... Wow, I'm looking at the specs on the AD2, my interest is certainly piqued. This might be useful regardless of what bench scope I stick with. It's certainly a bargain for what it does. |
| Fungus:
--- Quote from: KungFuJosh on August 24, 2018, 06:17:14 pm ---Wow, I'm looking at the specs on the AD2, my interest is certainly piqued. This might be useful regardless of what bench scope I stick with. It's certainly a bargain for what it does. --- End quote --- The supplied software is really good, too. :-+ (A lot of those sort of gadgets have good hardware but rubbish software. Not the AD2...) |
| rstofer:
For digital oriented projects, the Digilent Digital Discovery is another nice tool. I have both... If I just want to look at something, my DS1054Z is fine. But if I want to have nice printed results for documentation (or study material), the AD2 does a better job. Not necessarily more complete, the DS makes a LOT of measurements, but I tend to copy the AD2 screen image to the clipboard and then manipulate it with Paint. There's a lot to be said for the educational value of the AD2. Particularly in the early years when filters and response curves are being discussed. The AD2 Bode' plot is better than any scope version I have ever seen. And the image isn't cramped on my 27" monitor! |
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