VOLTCRAFT DOV series - Page 1
Forum section: electronics / testgear

author: Aldo22
author_rank: Super Contributor
timestamp: June 02, 2025, 04:14:16 pm
content: Does anyone know what this is or who manufactures it? (Owon, Uni-T, Rigol...).The specs don't sound too bad:12-bit high resolution ADCReal-time sampling acquisition 50,000 wfms/s, Segment acquisition 700,000 wfms/sSampling rate: Single channel (1.25 GSa/s), Dual channel (625 MSa/s or 1.25 GSa/s), Full channel (625 MSa/s)17.78 cm (7 inch) multi-touch capacitive screen, supports gesture controlChannel memory depth: 50MPhttps://www.conrad.com/en/p/voltcraft-dov704-digital-70-mhz-4-channel-1-25-gs-s-50-mp-12-bit-digital-storage-dso-1-pc-s-3350782.html

author: tatel
author_rank: Frequent Contributor
timestamp: June 02, 2025, 04:35:03 pm
content: I would go for the similar siglent DSD804X HD to get 2 GSa/s and 500,000 waveforms/s for just a little bit more?https://www.siglenteu.com/digital-oscilloscopes/sds800x-hd-digital-storage-oscilloscope/

author: Aldo22
author_rank: Super Contributor
timestamp: June 02, 2025, 04:43:17 pm
content: Quote from: tatel on June 02, 2025, 04:35:03 pmThank you, but that was not my question.Besides, it's not that simple.The Voltcraft has a slightly better sampling rate in 4-Ch mode (4x625 MSa/s vs 4x500 MSa/s for the Siglent) and Dual Channel mode (2x1.25 GSa/s vs 2x1GSa/s).

author: tunk
author_rank: Super Contributor
timestamp: June 02, 2025, 04:52:51 pm
content: Owon ADS800A or ADS900A.

author: electr_peter
author_rank: Unknown
timestamp: June 02, 2025, 05:04:37 pm
content: Quote from: tunk on June 02, 2025, 04:52:51 pmYes. But why does it look very similar to Rigol DHO800 series? +/- same case molding with minor differences between Rigol and VoltCraft/Owon. It could becopyinspired design or same designer as Rigol.

author: Aldo22
author_rank: Super Contributor
timestamp: June 02, 2025, 05:07:52 pm
content: Quote from: tunk on June 02, 2025, 04:52:51 pmYes, these look similar.But the sampling rates don't quite fit.

author: kmoonwalker
author_rank: Frequent Contributor
timestamp: June 02, 2025, 05:16:33 pm
content: Quote from: Aldo22 on June 02, 2025, 04:43:17 pmit looks that it is Owon ADS800A seriesregarding parameters given by manufacturer I would strongly recommend to read carefully the description:"All digital DOV oscilloscopes from VOLTCRAFT operate at a maximum sampling rate of 1.25 GSa/s. Thereal-time recording is 50,000 WFM/sand the segment recording is 700,000 WFM/s"from that Conrad scope pageSiglent is on similar price level but faster real time wfm/s so you will see more often that erratic signal occurence straight on screen not just diggin into memory...Owon was never excelling in wfs/s rates (especially when you turn on a bit of things) and only interesing scope from current offer for me washttps://www.owontechnology.eu/product/1312929/owon-xds3104ae-100mhz-4-channel-1gs-s-oscilloscopeand his 200MHz variant (with a bit more wfm/s) but they are more expensive (thou I think that 3104ae is worth adding money to it if you wanna Owon - I used it a bit at friends company and it is non brainer reasonably simple to use scope which surprisingly works very nice and 14 bit seems to do some job.but Siglent offers more in capabilities of math and other details so all depends what you need it forlow models have "flashy specs" but reality later is a bit bitter usually and that price level on Conrad is not something special to say

author: tatel
author_rank: Frequent Contributor
timestamp: June 02, 2025, 05:20:46 pm
content: Quote from: Aldo22 on June 02, 2025, 04:43:17 pm4x625MHz=2.5GHz? Not sure about your math, or perhaps about Voltcraft missing the opportunity to provide us with some hype. Even if true, anyway I would feel much more comfortable putting my money into the Siglent. I would say, it's a much more tested device, from a much more reputable brand. For me, it would really be that simple. But, of course, those that don't explore, don't find any treasures.BTW, congratulations for that Hameg you got. These are nice scopes IMHO.

author: Aldo22
author_rank: Super Contributor
timestamp: June 02, 2025, 05:24:43 pm
content: Quote from: kmoonwalker on June 02, 2025, 05:16:33 pmYes, I have noticed that.But Rigol DHO800 has even less (30,000 wfms/s) if I read that correctly.

author: Aldo22
author_rank: Super Contributor
timestamp: June 02, 2025, 05:29:38 pm
content: Quote from: tatel on June 02, 2025, 05:20:46 pmI guess it's 1.25GSa/s for Ch1+2 and the same for Ch3+4.So if you use Ch1+3 you get 1.25GSa/s for each.But maybe the information is wrong.Quote from: tatel on June 02, 2025, 05:20:46 pmThanks!

author: kmoonwalker
author_rank: Frequent Contributor
timestamp: June 02, 2025, 05:34:42 pm
content: Quote from: Aldo22 on June 02, 2025, 05:24:43 pmFrom Rigol I have old 1054Z and it has same specs so I dunno what they actually thought not improving the basic parameter only adding 12 bits processing - rest of the World moved on - plus firmware on new models is not as good as it could be with lil more effort and testing before the release :/Such wfm/s was good (nice actually) back then when I got my 1054Z but nowadays if you wanna spend money and this is the scope you will use for next few years it is worth considering what are your real needs and what they will be in not distant future and if adding a bit more is an option or not.Oscilloscope for few hundred to +/-1500 euro will be your everyday workhorse and perhaps in future you will need something more advanced as second one (or that first good purchase will suit you for like next decade or longer - just spend time and choose wisely).

author: Aldo22
author_rank: Super Contributor
timestamp: June 02, 2025, 06:03:07 pm
content: Thanks!By the way, just to avoid any misunderstandings, I'm not looking for a new scope.I was just looking for something else on the Conrad website today and then stumbled across these scopes.I just thought: Huh? What is that?That's all.

author: kmoonwalker
author_rank: Frequent Contributor
timestamp: June 02, 2025, 06:09:28 pm
content: Voltcraft rebrands usually cheap things or not very pricey - but from time to time they have something not bad like Metex made DMMs - nayway I purchase there usually when they have good discount offer or so