| Products > Test Equipment |
| Siglent SDS1104X-E vs. Rigol DS1054Z Advice? |
| << < (33/86) > >> |
| rf-loop:
--- Quote from: nctnico on August 27, 2018, 10:52:32 pm ---It doesn't matter whether you turn the BW limit on or off because the Rigol 1000Z is noisy like hell. The more recent oscilloscopes from GW Instek, MicSig and Siglent use a very low noise analog front-end and ADC (IIRC they all use the same so their performance when it comes to noise is comparable). --- End quote --- Yes, nearly all are better than this Rigol 1kZ if think its front end signal noise. Example Owon, GoodWill (GWI), Siglent, MicSiglent, etc... |
| Fungus:
--- Quote from: KungFuJosh on August 27, 2018, 09:02:02 pm --- --- Quote from: Fungus on August 27, 2018, 05:29:11 pm ---Turn on the bandwidth limiter, that's what it's for. --- End quote --- Do you think that's good to use in general for audio stuff? Is there any reason I would need to see anything above 20Mhz probing a tube amp? Is that a dumb question? ;) --- End quote --- With 10x probe it's not really needed. |
| Fungus:
--- Quote from: rf-loop on August 27, 2018, 08:14:47 pm ---Siglent what also can calculate RMS and it do it right. --- End quote --- 1) The Rigol measurement method isn't "unknown" as you claim. Just zoom in on the signal and you'll get a better (and much lower!) number. It's not difficult to do (in fact it's quite natural to do this when you're working with a signal - you tend to zoom in to look at it). The only thing 'suspicious' about those measurements was subtracting 3dB from the Siglent's noise level just because you felt like it. Noise is noise, the VPP of the noise is what people see on screen, not the RMS. The "apparent" noise also depends on the 'scope settings, display brightness, display persistance, sample rate, number of channels, etc. If you watch this video at around the 7:30 mark you can see Dave change the (apparent) noise levels by changing the memory depth: |
| tautech:
Different series, different processor, older model. Good to see you watching videos about Siglents. :-+ |
| Fungus:
--- Quote from: tautech on August 28, 2018, 08:54:57 am ---Different series, different processor, older model. --- End quote --- Still relevent to making claims about "noise" levels. --- Quote from: tautech on August 28, 2018, 08:54:57 am ---Good to see you watching videos about Siglents. --- End quote --- Rigol will soon have their new ASIC in a low-end model, so... meh. |
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