| Products > Test Equipment |
| Siglent SDS1104X-E vs. Rigol DS1054Z Advice? |
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| JS:
--- Quote from: tautech on August 26, 2018, 02:07:54 pm ---Sure there are a few ways to measure floating potentials however there are times when you need the proper gear. Say a mains phase control high-side pair of reversed biased SCR's, gates elevated and driven by pulse xformers. Never did I think that my hobby of electronics would have me doing that stuff but once you have the gear and some knowledge it's not hard but it is dangerous and there must be no distractions. Careful work technique too, one hand in back pocket at all times when powered so to offer no electrical path across the body should you touch something hot. A UJT had failed and when replaced we had to adjust the set points so both SCR's were turning on at the same point in opposite curves of the mains sine wave so to share the load properly. Fun stuff and led me more into power electronics as my greatest interest coupled with simple digital control. :) --- End quote --- Sorry if I didn't explained my self clear enough, I'm saying a differential prpbes becomes necessary pretty fast, as you can only reject so much with a poors man one, which might be fine for a CM noise the same level of the NM signal. Once the CM becomes bigger than the NM you kind of need a differential probe and if the CM is much grater than the signal you want an isolation probe. JS |
| BillB:
--- Quote from: KungFuJosh on August 26, 2018, 05:27:30 pm ---I'm going to RMA the Rigol and try the Siglent out. If it's annoying or sucks, it also has a 30 day return policy. --- End quote --- :phew: I don't think I've ever deliberated as much for anything... school, career, spouse, that capital murder case I sat on a jury for... |
| Mr. Scram:
--- Quote from: BillB on August 26, 2018, 09:34:21 pm ---:phew: I don't think I've ever deliberated as much for anything... school, career, spouse, that capital murder case I sat on a jury for... --- End quote --- Oh my, you should see the stacks of research and documentation I've produced to decide on some things. |
| KungFuJosh:
--- Quote from: BillB on August 26, 2018, 09:34:21 pm ---:phew: I don't think I've ever deliberated as much for anything... school, career, spouse, that capital murder case I sat on a jury for... --- End quote --- :-DD Well, it was both entertaining and educational for me. The stupid thing is I had the SDS1202X-E on my wishlist on Amazon for about year, and I didn't buy it because 1. I had no idea if it was any good/good enough for my needs, and 2. the ad said "200 mhz" and I thought anybody selling an oscilloscope should know the difference between mHz and MHz. --- Quote from: Mr. Scram on August 26, 2018, 10:24:30 pm ---Oh my, you should see the stacks of research and documentation I've produced to decide on some things. --- End quote --- This is more public, but less involved than my recent hunt for camera lenses. I bought, tested, and returned a lot (nobody cares about quality anymore, even in the $1K price range)...finally settled on a couple nice ones. --- Quote from: nctnico on August 26, 2018, 08:26:32 pm ---I think the one Dave took apart is a pre-production model. In my GDS-2204E there is only one integrated board (without the add-on boards shown in Dave's video). --- End quote --- That's interesting about the updates, but I'm guessing the difference between your scope and the one in Dave's video is that your scope costs twice as much. I'm not looking to be anywhere near that price range. If I was spending that much I'd probably get stuck buying an R&S just because they're sexy. ;) |
| bitseeker:
--- Quote from: KungFuJosh on August 26, 2018, 05:27:30 pm ---I'm going to RMA the Rigol and try the Siglent out. If it's annoying or sucks, it also has a 30 day return policy. --- End quote --- Looking forward to reading your comparison after you've had a little time with the Siglent. --- Quote ---I hate to ask this because they're fugly and over-sized, but does anybody really believe the Instek scopes are more reliable for some reason than Rigol or Siglent? From watching Dave's tear-down videos I got the opposite impression, but I saw a comment that said otherwise so I thought I should ask. The only thing I do like about the comparable Instek is the individual vertical controls. --- End quote --- I've heard both sides on that one — no surprise, huh. There's no perfect scope (nor anything else, practically). I also like the individual vertical controls (very much), but I had already gotten the 1054Z before that Instek was available. I don't regret my purchase, but still enjoy seeing the new things coming out. |
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