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| Is Rigol DS1054Z still a good option in 2019? |
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| ebastler:
--- Quote from: memed on January 23, 2024, 03:27:04 pm ---How much was black friday deal for this model(DHO1074) that time? What problem you had with that oscilloscope? --- End quote --- The Black Friday discount on the DHO1074 was very tempting -- 40% off list price, which meant 720 Euro incl. our 19% VAT. I realize that I will have to pay quite a bit more for the SDS1000X HD when it eventually arrives in Europe. I did not find any showstopper bugs, but increasingly got the impression that Rigol just doesn't care. Some examples: * The FFT is just as rudimentary as in my 9-year-old DS1054Z (no Averaging & Peak mode), and has the same bugs (messed-up window functions causing distortions of the peaks). * Setting parameters via the dual Flexknobs was less useful than I thought: They operate at odd increments and without acceleration, so I found myself using the on-screen keyboard much more often than I liked. The knobs also got confused occasionally as to which parameter they were controlling, indicating a horizontal adjustment but changing vertical scale instead etc. * Acquisition rates in Recording mode were painfully slow; less than one shot every 5 ms. And the indicated time stamps did not seem real, they did not match stop-watch time. * Trigger coupling in AC or low-frequency rejection mode is useless, it has a massive jitter. Looks like nobody at Rigol ever tried this. * The memory upgrade key which was included in the deal took three reminders to Rigol before it arrived, and then did not work at all. (Even though I had the proper instructions, courtesy of the hacking thread. With the non-documentation which Rigol includes, there's no chance in hell you could make even a functional key work.)Combine that with the fact that I had doubts regarding the longer-term future of this model: The Black Friday deal felt like a closeout sale, and the scope has not received the same firmware improvements which the DHO800/900 got. I sent it back within Amazon's generous "no questions asked" return window. If you are considering the DHO800/900 series, I would strongly encourage you to wait for the SDS800X HD from Siglent. It's a much more capable scope, although with a slightly lower-resolution screen. Not shipping in Europe yet, but Performa01 (who is a beta tester) has just started to publish an in-depth review series: https://www.eevblog.com/forum/testgear/sds800x-hd-review-demonstration-thread/ |
| Martin72:
Hi, --- Quote ---It's a much more capable scope, although with a slightly lower-resolution screen. --- End quote --- Resulution is the same (DHO800 1024x600, SDS800 1024x600). |
| ebastler:
--- Quote from: Martin72 on January 23, 2024, 05:21:05 pm ---Resulution is the same (DHO800 1024x600, SDS800 1024x600). --- End quote --- Oops, I was thinking of the DHO1000 with its higher resolution screen (while the Siglent counterpart, SDS1000X HD, also has 1024 * 600). You are right, the competing smaller models have the same screen size and resolution. Text on the DHO800 nevertheless looks smoother than on the SDS800X HD since it is rendered using anti-aliasing. But the control and display areas also take up more room and leave less for the trace display. |
| Fungus:
--- Quote from: ebastler on January 23, 2024, 04:34:35 pm ---The FFT is just as rudimentary as in my 9-year-old DS1054Z --- End quote --- But it's much more detailed, has much faster update rate, much lower noise floor, it's much easier to move the trace around and rescale it (touch screen!), and (most importantly) it has a table showing frequencies and amplitudes of the peaks. --- Quote from: ebastler on January 23, 2024, 04:34:35 pm ---Acquisition rates in Recording mode were painfully slow; less than one shot every 5 ms. --- End quote --- That's going to depend totally on your configuration and memory size. There are slow cases and fast cases, just like on every other oscilloscope. --- Quote from: ebastler on January 23, 2024, 04:34:35 pm ---Trigger coupling in AC or low-frequency rejection mode is useless, it has a massive jitter. Looks like nobody at Rigol ever tried this. --- End quote --- Can't say I've ever used that in 10 years of oscilloscope usage (I had to look up what it did when it was reported) and, given how long it took for it to be reported, I suspect hardly anybody else uses it either, including the people at Rigol. I've always triggered from what's visible on screen because it's visual and you can see what you're doing. IOW it's almost a non-bug in reality. --- Quote from: Veteran68 on January 23, 2024, 04:00:03 pm ---That said, it does indeed have a beautiful screen --- End quote --- Yep. --- Quote from: Veteran68 on January 23, 2024, 04:00:03 pm ---and honestly the bugs haven't (yet) hindered my use. But I'm a hobbyist, and not a sophisticated user. --- End quote --- Exactly. If you're a "sophisticated user" then get a Siglent SDS2000. This 'scope isn't aimed at you. (and neither is the SDS800 when it finally arrives) |
| Martin72:
--- Quote ---(and neither is the SDS800 when it finally arrives) --- End quote --- It will arrive and relatively soon. And it will be a direct competitor in terms of price, at least at the 70Mhz level, but not in terms of performance, where it is superior to the Rigol, as you can see in Performa01's new thread. I didn't expect this clear superiority. |
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