[SOLVED] Need help deciding between SDS804X HD and SDS814x HD osilloscope. - Page 1
Forum section: electronics / testgear

author: AmeliaBuns
author_rank: Regular Contributor
timestamp: March 04, 2024, 10:33:02 pm
content: Hi, I'm mainly a software engineer and a newbie to electronics.I'm looking to buy an oscilloscope for embed dev + designing circuits like scales/sensors. Right now I'm designing something with the AD7190. I also want to use it to analyze my power supply designs (DC-DC and low wattage usually).I was going to buy the SDS814X but a friend of mine told me I could just easily hack the SDS804x HD to 200mhz with a keygen. As a newbie, I'm not even fully sure how these things work so I'm getting a second opinion, especially as the 814x costs a ton of money!the SDS804x HD is 150CADcheaper (that's a nice hot air I also need!) and even if I fail to use keygen, surely 70mhz is enough for my use case still right? my worry is that even if I do make the keygen work the circuit or the calibration is different on the units.- Thanks

author: tautech
author_rank: Super Contributor
timestamp: March 05, 2024, 08:51:10 am
content: Welcome to the forum Amelia.SDS800X HD models also offer a Power Analysis option, perfect for detailed analysis of switching supplies where you are unlikely to ever challenge the stated 70 MHz BW of the 804 model.All/any option provides for 30 free trial uses before permanent licensing is required.I have heard whispers 804's actual -3dB BW is closer to 115 MHz and I have tested my 814 to ~155 MHz so a 804 will serve you well and there's probably no need you'll ever require a higher BW model.

author: AmeliaBuns
author_rank: Regular Contributor
timestamp: March 05, 2024, 06:35:29 pm
content: Thank you for saving me 150CADDo you know anything about the possible hacks either?I'm going to place my pre-orderVery excited... this is my first oscilloscope and I dreamt of buying one since I was a kid!

author: Martin72
author_rank: Super Contributor
timestamp: March 05, 2024, 06:39:15 pm
content: QuotePlease read the corresponding SDS 800X HD thread, where your initial question would also have fitted.

author: AmeliaBuns
author_rank: Regular Contributor
timestamp: March 05, 2024, 06:44:04 pm
content: Quote from: Martin72 on March 05, 2024, 06:39:15 pmI did! However, the hacks are on early models and not the release ones.There's a very small chance they sent the same hardware for the testing but changed them for the release or something?

author: AmeliaBuns
author_rank: Regular Contributor
timestamp: March 05, 2024, 11:32:02 pm
content: Quote from: ebastler on March 05, 2024, 06:49:30 pmThank you! I'm not sure what the difference is but i'll take a look, very expensive still (700CAD with 60CAD shipping and taxes...) but words cannot describe how excited I am for this!Although I just used all of my budget for this month in the first 4 days

author: Harrow
author_rank: Regular Contributor
timestamp: March 06, 2024, 01:24:16 am
content: Quote from: AmeliaBuns on March 05, 2024, 11:32:02 pmIf they're in stock for you, can you get two and send one to Australia. I don't really want to wait until Xmas for mine. I'll even send you a packet of Tim Tams.

author: AmeliaBuns
author_rank: Regular Contributor
timestamp: March 06, 2024, 04:46:58 am
content: Quote from: Harrow on March 06, 2024, 01:24:16 amThey were just in back order and I'm stupid and impatient!

author: AmeliaBuns
author_rank: Regular Contributor
timestamp: March 11, 2024, 05:00:31 am
content: Quote from: ebastler on March 05, 2024, 06:49:30 pmI just realized, Does the 200mhz upgrade require me to buy new probes too? because they look to be 50CAD each. at that point I might get the 814x instead. 50CAD x 4 = 200CAD, the upgrade is 150CADalthough the benefit of the 804x hd is that i can do it later when I can afford it

author: tautech
author_rank: Super Contributor
timestamp: March 11, 2024, 06:31:42 am
content: Quote from: AmeliaBuns on March 11, 2024, 05:00:31 amNo unless you feel the need to pursue higher frequencies.Have a look at Probe Bandwidth tests here:https://www.eevblog.com/forum/testgear/sds800x-hd-review-demonstration-thread/msg5293756/#msg5293756However only PP510 and PP215 were tested as that was all to hand.QuoteYep and likely only a couple would meets your future needs.

author: myf
author_rank: Regular Contributor
timestamp: March 11, 2024, 05:46:14 pm
content: Hello Tautech, hello everybody,Tautech talks about "SDS800X HD models also offer a Power Analysis option".I find no information about what it is but it seems there is and an hardware device (df2001-a) and a software licence (sds800xhd-pa) without details onhttps://www.siglenteu.com/digital-oscilloscopes/sds800x-hd-digital-storage-oscilloscopeat the very bottom of this page.Does it replace differential probe x100 and/or an ac-clamp probe for scope for mains as Hantek proposes ?But with theses (almost) standard probes I don't need any software...Thanks a lot for your explains.Have a nice day !F., which makes amateur electronics in France

author: tautech
author_rank: Super Contributor
timestamp: March 11, 2024, 07:35:22 pm
content: Quote from: myf on March 11, 2024, 05:46:14 pmPA is an optional feature also found in the more expensive Siglent models and as in those you have 30 trial uses of PA without the need for licensing.PA is a dedicated special mode of operation, much like Bode plot and takes a second or 2 to launch and return to normal scope use.QuoteNo.Probes needed to make full use of PA are:Std voltage probesDifferential probesCurrent probes.In each of the 12 PA measurement types there is a Connection guide to guide correct usage.Screenshots below display an indication of menus and how to use PA.

author: AmeliaBuns
author_rank: Regular Contributor
timestamp: March 12, 2024, 06:23:40 pm
content: Quote from: tautech on March 11, 2024, 06:31:42 amGreat! I guess I'm just too nervous as it's a lot of money, and I'm impatiently waiting for mine to be shipped