SDS3104X HD - Are there any promotions in sight? - Page 1
Forum section: electronics / testgear

author: joseangel
author_rank: Contributor
timestamp: May 31, 2025, 11:54:51 am
content: Hi all, I am about to purchase a Siglent SDS3104X HD oscilloscope. It is huge money for me, even being a professional hardware designer, but I am expecting some higher speed designs soon where I will need to measure jitter with some accuracy (low tenths of ps).Are you aware of any commercial promotion in sight for this scope in Europe?Best regards,JoseP.S.: I am not sure if this is the right place to post this.

author: KungFuJosh
author_rank: Super Contributor
timestamp: May 31, 2025, 03:13:49 pm
content: I dunno how long you want to wait, they'll have somethingeventually.You're best bet is to contact batronix.com and ask them if they can get you a good deal.

author: kmoonwalker
author_rank: Frequent Contributor
timestamp: May 31, 2025, 05:17:38 pm
content: Quote from: joseangel on May 31, 2025, 11:54:51 amHD are new models so I do not suppose that happening anytime soon - if you want to get something in good price older 2000x plus and 5000x series are very well priced as resellers are clearing stocks and I've seen some offers with fully enabled (or with lot of options) scopes.

author: joseangel
author_rank: Contributor
timestamp: May 31, 2025, 06:23:46 pm
content: Thanks for the useful tips. I currently have a SDS2354X Plus, now I'm aiming for the real thing (1 GHz BW, cannot afford more).

author: kmoonwalker
author_rank: Frequent Contributor
timestamp: May 31, 2025, 06:30:02 pm
content: new Siglents 5000x HD series will come out soon in EU so you may get some better deal on older 5000x cause rn they are similar price point to 3000x HD series for 1 GHz models

author: Martin72
author_rank: Super Contributor
timestamp: May 31, 2025, 06:59:04 pm
content: The Siglent promotions I had seen up to that point rarely, if ever, included a price reduction; instead, you tended to get free options.However, sometimes there were also bandwidth upgrades to the next higher bandwidth, so one could hope and wait.However, I would not want to buy anewSDX5000X anymore; I would rather go for the 3104X HD.

author: joseangel
author_rank: Contributor
timestamp: May 31, 2025, 07:38:12 pm
content: Absolutely agree! True 12-bit plus 1GHz is the real deal for me.Time interpolation is key for low error jitter measurements (important use case for my projects).If the included firmware functionality is not enough, I plan to use ngsclientscope,https://www.ngscopeclient.org/P.S.: The new 5000X HD looks great wrt the bigger screen but it is way out of my budget.P.P.S.: I have enjoyed in the past the bandwidth upgrade promotions with previous Siglent models.It was very generous both from the community and Siglent side

author: Conrad Hoffman
author_rank: Super Contributor
timestamp: May 31, 2025, 09:14:47 pm
content: Predictions are difficult, especially when they concern the future! My general advice is, never buy equipment until the actual contract is signed and in hand. Siglent products seem to be readily available, without long lead times. Unless you know all the specifics right now, you might decide the budget has to be increased and a higher model purchased.

author: hpw
author_rank: Frequent Contributor
timestamp: June 02, 2025, 07:43:38 am
content: Quote from: joseangel on May 31, 2025, 11:54:51 amThe question to measure jitter requires a related gear. This means also an accurate based DSO clock. This means LeCroy or Keysight with required loaded Jitter SW.It depends whether your signal frequency is as a MCK or not. While a sampling DSO may help ashttps://sjl-instruments.com(has a thread on this forum).Best to test any gear before purchase, whether they are able to provide your requirements.my 2 centsHp

author: joseangel
author_rank: Contributor
timestamp: June 02, 2025, 08:04:44 am
content: Quote from: hpw on June 02, 2025, 07:43:38 amThanks for your your feedback!One of the "secrets" best kept by T&M equipment manufacturers is that you DON'T need special gear to measure jitterThe real answer of course is that it depends on the sort of jitter measurements you need. You will definitely have to pay some important money to get a good eye analysis, purchase the high-end scopes and specific add-ons. For sure.But if you "only" need to evaluate C2C jitter and related statistics you can perfectly do with a mid, sometimes even entry level Digital Storage Oscilloscope. Very important is that the DSO has a good/stable master clock oscillator (as you indicate). I have been very successfully measuring jitter well under 60-50 ps RMS with my trusty SDS2354X+ (at a fraction of the price) with similar results than measurements done with higher end DSOs (the R&S 50k EUR gear we have at work).You can also simply capture the waveforms and throw the raw data to a jitter analysis off-line application (there are a few in the wild). Or use ngclientscope (free, Open Source Software, real time, customizable, great tool!)Another low cost approach is explained in detail in the article below. Even tough the author is working with audio signals, the technique is exactly the same we use with gamma detectors with rate of events in the range 100k-10 MHz.https://clk.works/2020/05/jitter-spectrum-measurement-with-a-dso/Siglent usually does NOT specify in detail the jitter you can expect from its gear (specially in the low/mid end), but I found that it is usually very low indeed, very capable. In the case of the SDS3000X HD series, the datasheet indicates < 10 ps rms (typical) for all internal channels (internal sync). With <10ps or additive jitter and time interpolation of 12-bit vertical data I bet I can match the performance of the R&S DSO. Lets see...

author: 2N3055
author_rank: Super Contributor
timestamp: June 02, 2025, 09:39:42 am
content: Quote from: joseangel on June 02, 2025, 08:04:44 amEven SDS800xHD actually has Cycle to Cycle measurement.Inherent jitter on 3000xHD is better than 4ps (more like 2-3ps) with well defined fast edges on the signal. (measured on 1GHz version)

author: joseangel
author_rank: Contributor
timestamp: June 02, 2025, 09:42:52 am
content: Quote from: 2N3055 on June 02, 2025, 09:39:42 amThat's awesome!

author: hpw
author_rank: Frequent Contributor
timestamp: June 03, 2025, 11:23:41 am
content: Quote from: 2N3055 on June 02, 2025, 09:39:42 amAnd only if one man is satisfied with the given figures. Professional gear as LeCroy SDA60xx (20/200Gs) any newer, using the jitter analysis JTA2 delivers more & detailed figures but cost some more

author: joseangel
author_rank: Contributor
timestamp: June 03, 2025, 11:53:06 am
content: Quote from: hpw on June 03, 2025, 11:23:41 amOh my gosh!You now a piece of gear is reaaally expensive when you cannot even find the price online