New Siglent AWG: SDG3000X - Page 1
Forum section: electronics / testgear

author: newbrain
author_rank: Super Contributor
timestamp: February 20, 2025, 09:57:29 pm
content: Spotted on the Chinese website:https://www.siglent.com/products-overview/sdg3000x/Seems to be a modernized heir of the SDG2000X series?Small SDS-like shape, large screen (for an AWG), 40 M sample memory, 16-bit.Sampling rate 1.2 GS/S, probably interpolated from 600 MS/s (max for AWG, IIUC).About 6000 Yuan for the entry 80 MHz model.Chinese datasheet translated by Deepl is attached. Google makes a dog's breakfast of the tables.

author: Martin72
author_rank: Super Contributor
timestamp: February 20, 2025, 10:09:49 pm
content: It looks like it's the long-awaited “missing link” between SDG2000X and SDG6000X.

author: tautech
author_rank: Super Contributor
timestamp: February 20, 2025, 11:26:57 pm
content: Quote from: Martin72 on February 20, 2025, 10:09:49 pmYes to fill the 120-200 MHz gap in the product line, and hopefully at a cost below the SDG6000X series.Aimed at the hobbyist and EDU market.

author: Njk
author_rank: Frequent Contributor
timestamp: February 21, 2025, 01:35:35 pm
content: Glad to see a one-piece design that does not require external power brick

author: DaneLaw
author_rank: Frequent Contributor
timestamp: February 21, 2025, 03:31:24 pm
content: Quite similiar on its fundamentals as Rigols lower-PRO line* 1024x600 7"screen* 16bits.* 200MHz* 1.2GSa sample rate (x2 interpolation).. Rigols is also around that.. 1.25GSa)* 3ns rise times.* jitter 150/200ppsBut at least Siglent used a traditional numerical design.Back to black.Quote from: Njk on February 21, 2025, 01:35:35 pmPersonally prefer models that are DC input based, and get the SMPS away from the unit... a modern unit like these sig-gen's from Siglent & Rigol, uses so little power, nowadays. likely around 30 watts in average (DGxxxPRO uses around the same 35W) while modern 45W or 65W PD GANrevx-powerbricks from even quality brands.. are getting tiny and better & better.. Not much bigger than a standard power endplug that you plug into the wall-socket or to an extended powerstrip.65W PDPSU to an older Apple PDPSUOr you can get one single modern quality power supply that you have some confidence in, and got multiple PD-C & USB outputs so you can run a lot of your modern bench devices and you ain't locked down to whatever switch mode power supply a given BOM-cost decided.it also makes it easy to change down the line, if/when components/caps take a wrong turn, or you luck'ed out in the lottery and got a unit with an SMPSU that leaves some to be desired and has a vibe of its own, not to mention being able to use power-banks and the mobility that comes with that.These modern arb-sig gens are packed to the ceiling with features & waveforms that can be relevant in so many different work-segments & work-environments even auto, while also being small & light with a design that clearly is optimized to be moved around and you can take the arb. signal generator with you and not have to rely on AC sockets,quite different design than the more stackable stationary variants.I doubt a power standard like PowerDelivery (PD) is on its way out...quite the contrary, I reckon it will become more or less the norm for consumer-tech, and products across the fleet will target PD's. voltage levels 5,9,12,15,20,28*,36*,48v* [*PD3.1]Do see a lot of benefits in having a DC input option, or at least give the option so you both have AC but also could power it from a TypeC PD socket, as we see on some arb-signal generators.. that gives you both options-

author: Martin72
author_rank: Super Contributor
timestamp: February 21, 2025, 10:58:37 pm
content: Quote from: DaneLaw on February 21, 2025, 03:31:24 pmOn the boards, even with such a solution, the various auxiliary voltages are generated from a supplied voltage.How do you think that happens?That's right, via SMPS circuits...

author: DaneLaw
author_rank: Frequent Contributor
timestamp: February 21, 2025, 11:39:07 pm
content: Quote from: Martin72 on February 21, 2025, 10:58:37 pmsure buddyI reckon I explained the reasons why I prefered DC input, so even you could follow along in your onesided Siglent haze.Relate to what I explained as reasons and not what you think Im refering too.

author: tautech
author_rank: Super Contributor
timestamp: February 22, 2025, 12:03:42 am
content: Quote from: DaneLaw on February 21, 2025, 11:39:07 pmFact actually, where have you been ?Even 60's CRO's used a sort of SMPS to generate CRT EHT...well shielded mind you as they ran @ just a few 10's of kHz.....nothing like modern SMPS that often run @ 500kHz.

author: DaneLaw
author_rank: Frequent Contributor
timestamp: February 22, 2025, 12:15:50 am
content: Quote from: tautech on February 22, 2025, 12:03:42 amHurra for that, but relevance to my first post??and what they did, ages back, aint always prefered..things do evolve..

author: Njk
author_rank: Frequent Contributor
timestamp: February 22, 2025, 12:39:09 am
content: Quote from: DaneLaw on February 21, 2025, 03:31:24 pmRight, but the disadvantages are obvious either:- A power brick on the workbench introduces unnecessary clutter, especially when more than one such instrument is in use.- A power brick(s) laying on the floor makes that floor area difficult to clean, a dust and dirt is quickly collecting there, especially in the presence of a dogs/cats.- Some vendors can opt to don't provide a power brick at all to reduce the price. So it's the customer's burden to choose and buy a good power brick. Today it may not be easy.

author: KungFuJosh
author_rank: Super Contributor
timestamp: February 22, 2025, 05:49:28 am
content: Quote from: Njk on February 22, 2025, 12:39:09 amDon't forget to add:Some of those power bricks (including "nice" ones) can add noise or oscillations that might show up in a tube amp you're troubleshooting, and a year later, you unplug the brick of the device you weren't using and the problem disappears. Or something like that. 😉

author: 2N3055
author_rank: Super Contributor
timestamp: February 22, 2025, 09:19:37 am
content: Quote from: DaneLaw on February 21, 2025, 11:39:07 pmYeah, haze of some sort is definitely afoot...

author: Furna
author_rank: Frequent Contributor
timestamp: February 22, 2025, 12:27:35 pm
content: I put it on my radar ... even though I would prefer 300 MHz.Hope to see it soon in western markets.

author: KungFuJosh
author_rank: Super Contributor
timestamp: February 22, 2025, 05:29:19 pm
content: Quote from: DaneLaw on February 21, 2025, 11:39:07 pmThat's not really fair, is it? He's got an awesome Magnova oscilloscope on his bench, and if he really lived in a Siglent haze, would he bother trying other scope brands?Personally, I'm not in a Siglent haze; I'm in ananything but Rigolhaze. 😉😉

author: Martin72
author_rank: Super Contributor
timestamp: February 22, 2025, 06:10:24 pm
content: He explained why he preferred DC power supply, I said that SMPS is also used in the device. How he then comes up with the siglent number is his secret and not worth mentioning.TheRigol I'm testing right now, you can also connect a battery to it...

author: tautech
author_rank: Super Contributor
timestamp: February 22, 2025, 06:42:28 pm
content: Quote from: KungFuJosh on February 22, 2025, 05:29:19 pmNo, it's a personal attack and unjustified as Martin is a very open minded professional EE and prepared to evaluate any product from the reputable brands against his expectations and not all meet them !

author: KungFuJosh
author_rank: Super Contributor
timestamp: February 22, 2025, 07:15:33 pm
content: Quote from: tautech on February 22, 2025, 06:42:28 pmAgreed, 💯. Somebody could give me a Rigol DS70504 for free, and I'd sell it without ever taking it out of the box. I'm not biased towards Siglent; I'm biased away from Rigol. 😉

author: Grandchuck
author_rank: Super Contributor
timestamp: February 22, 2025, 07:21:18 pm
content: Don't you have to take it out of the box to take pictures for ebay

author: BillyO
author_rank: Super Contributor
timestamp: February 22, 2025, 07:31:30 pm
content: Quote from: DaneLaw on February 22, 2025, 12:15:50 amIn your first post you said:QuoteIt was literally your first statement.So, just to spell it out for you, since you seem to have a distinct lack of basic understanding, these instruments are chock full of SMPS units to supply various voltages. You can't get the "SMPS" away from the unit. That's the relevance to whatYOUsaid.

author: BillyO
author_rank: Super Contributor
timestamp: February 22, 2025, 07:47:23 pm
content: On the new SDG3000X, I don't think I'm a fan of the form factor. On my bench I have 3 devices sharing the same horizontal space with my SG. Getting one of these would require an extra 12" on the self that I can't stack anything on. I guess I could put it on top, but if all instruments start coming in this FF there is going to be a problem with having a grossly over equipped lab!

author: DaneLaw
author_rank: Frequent Contributor
timestamp: February 23, 2025, 03:50:00 am
content: Quote from: BillyO on February 22, 2025, 07:31:30 pmYeah' that's the problem when you take things out of context and only paste a few words and try to give them another loaded narrative.. a tactic that is also weirdly popular not least in the media these years, so every single clown down the line' then tends to eat it as snipped/presented..even though it wasn't expressed and mainly down to a tainted perception. often with a bias.Where is there anything that says I want the SMPS away from the unit "so I then have a completely switch-mode-free unit without any switch-mode components?"None, the user above' and who was qouted, refered solely to the AC to DC input brick and having it internally. So it is clearly, that sole component AC-to-DC input stage that is being referred, nothing in the post says' that getting the AC to DC input-stage away from the unit, would then make it completely switch-mode free.im only referring to the pro & cons I see of having AC to DC externally or internally.. you do get that?I find it comical that you b*tch about other people's basic understanding while carrying yourself with a clueless Chinese Siglent fanboy-banner, (which is literally the pedicle of ignorance & lack of objectiveness) and you can't even relate to the context you're replying to.None in that post says it will be a switch-mode-free device with no switch-mode components, Im only referring to all the benefits I see, from having a DC input option not least in a new signal generator with a form factor that seems optimized for mobility, Siglents older signal generator... the elongated stackable variants, clearly weren't.

author: BillyO
author_rank: Super Contributor
timestamp: February 23, 2025, 04:01:44 am
content: Quote from: DaneLaw on February 23, 2025, 03:50:00 amBlah, blah, blah.Then you should have said "Personally prefer models that are DC input based, and get the power supply separated from the unit".But no, you made it specific to an SMPS, whichiswhat Martin responded to. Then your attitude stuck out further than your .. (insert imagination here).This is on you. Not Martin, not tautech, not anyone else but .. you.

author: DaneLaw
author_rank: Frequent Contributor
timestamp: February 23, 2025, 07:25:40 am
content: Quote from: BillyO on February 23, 2025, 04:01:44 amA reply like an offended teenager with "blah blah"I will try to nurse it, but I can also sense from that signature that you desperately want to show loyalty to this Chinese brand and its cause.Fair enough, I get that some people get attached to certain things, and some even do it as a way to get validated & feel like they belong to that cause or group— In this case, a Chinese brand. And the harder you can signal and defend the cause, the better.Just as there usually needs to be an “opponent” so even the most primitive can follow along with an A vs. B viewpoint and target that opponent in a way to show how dedicated one is to the cause.That factor tends to be either the opposite counterpart to one’s cause or the obvious competitor or simply factors that dare to form an opinion that differs.It’s fascinating to watch as an outsider that doesn't have a horse in this "race for dummies".. its also getting more and more common on social media, where even loyalty badges & loyality signatures pops up for anything under the sun, almost to the point that anybody that aint got the correct badges under their profile, is persona non grata for certain people.It also has a mind of its own and thrives in these hive-minded echo chambers in the cloud... that seem to appeal to certain mindsets.I took a look at your comments to understand that signature you're parading... and ohh yeah' you certainly have your signatures-fanboyhood nailed down... I will agree with your signature— you are very devoted to that Kool-Aid and defend it like your life depended on it...Like it’s the thing that matters in your life....well done ..Billyyou did it..Anyway, you can clearly read that I’m referring to the sizes of these modern external GaN power supplies in the following sentence, and explaining just how small they have become nowadays.So it goes without saying that it's the AC-to-DC input stage I’m obviously talking about, and I’m relating to the pros & cons of having it internal or external....exactly what the user above referred to, which I quoted and replied to in that comment... you don’t need a PhD to grasp that logic.At no point do I express that there aint other switch mode components present on the inner circuitry, Im relating to the aspect I'm quoting, and the pro & cons of that and why all my examples of benefits take center in that.Taking things out of context and trying to inflate them with another meaning, and then try holding that original person accountable for that..usually don't end well.Even if you aren’t the fastest moped on the dock, you can still go to the source instead of just relying on a brief snippet taken out of context in an attempt to get your little Siglent-fanboy groove going and honor your signature.If you so desperately need to b*tch about something, then b*tch about the lack of proper grammar and the use of . vs..But let’s not get sidetracked—download the bot-translated datasheet I posted above, and let’s debate this new signal generator’s fundamentals.Not a brief snippet taken out of context.

author: Sorama
author_rank: Frequent Contributor
timestamp: February 23, 2025, 07:29:15 am
content: I need a second cup of coffee.It seems we all do.Relax folks, it’s Sunday

author: KungFuJosh
author_rank: Super Contributor
timestamp: February 23, 2025, 07:59:40 am
content: Quote from: DaneLaw on February 23, 2025, 07:25:40 amChill man. You've been the aggressor against multiple people. Don't forget this is a multilingual user base, and a lot gets lost in translation. You can't expect everything to be inferred the way you want.

author: DaneLaw
author_rank: Frequent Contributor
timestamp: February 23, 2025, 08:40:01 am
content: Sure multilingual and it was lost in translation... let's go with that.Took a look at the datasheet, and it does seem that SDG3000X uses around 30W (as speculated above) in average consumption, so a tad less than the DG8/9PROseries from Rigol (35W) which does use an external PSU.Native CN Prices 830€ (40MHz) to 1400€ (200MHz) so very similar prices to DG900PRO series (CN 660€ to 1200€) but their fundamentals are also quite similar.Designwise... no preference for either, not that fund of Rigol's circular numerical design. prefer the traditional on the Siglent but you likely aren't gonna use it a lot, with that 7" capacitive touchscreen that tends to appeal to simply adjust it on the numerical keyboard on the screen.Featurewise..and from a brief look in the datasheet Siglent's SDG3000X-line do seem more complete/advanced than what you find in the Rigol DG900PRO.

author: ch_scr
author_rank: Frequent Contributor
timestamp: February 23, 2025, 10:04:05 am
content: Thoselookvery similar indeed, at least to those that did not have the (questionable) "pleasure" to use a Rigol "SiFi II" function generator to create two signals with defined phase set to each other. I had on my DG812, and will not buy a model,anymodel with an "Align" button on the front panel, ever again.

author: egonotto
author_rank: Super Contributor
timestamp: February 23, 2025, 12:19:15 pm
content: Hello,in arbitrary wave AWG mode, it is superior to the SDG6000.40 Mpts versus 20 Mpts and 600 MHz versus 300 MHz.Best regardsegonotto

author: hpw
author_rank: Frequent Contributor
timestamp: February 25, 2025, 10:23:32 am
content: Quote from: newbrain on February 20, 2025, 09:57:29 pmSquare wave is for all models at max 60Mhz.There is currently no information given on:- Whether we have fixed LVCMOS (3.3V) or HCMOS (5V) output levels settings- Using the external 10MHz reference, whether gets then any better/different jitter specifications.- THD (audio range) could be better using an 16 bit DACjust my 2 centsHp

author: Martin72
author_rank: Super Contributor
timestamp: February 25, 2025, 10:28:35 am
content: QuoteWhy?This is easily sufficient in the vast majority of applications and if the generators could also output a usable square wave signal up to the respective maximum bandwidth, they would also cost "a little more"...

author: hpw
author_rank: Frequent Contributor
timestamp: February 25, 2025, 11:29:01 am
content: Quote from: Martin72 on February 25, 2025, 10:28:35 amAs sine at max 200MHz and on digital audio & ESS, requires up to 100MHz MCK clocks

author: 2N3055
author_rank: Super Contributor
timestamp: February 25, 2025, 12:23:54 pm
content: Quote from: hpw on February 25, 2025, 10:23:32 amRespectfully,AWG is not pulse generator, where pulses are created with pulse circuits, going through pulse shaping circuits all the way to output.On AWG output of squarewave is generated inside by DAC and exits the generator through linear output amplifier. Even if you were to generate pulses by some superfast digital shaping circuit inside, they will still go out through the linear, analog output amplifier.And those have limited BW.For a roughly shaped squarewave, with 100 MHz repetition rate, you would need pretty much 1 GHz BW (for 3-5-7-9 harmonic) on output amplifier and that is large signal BW we are talking about.60MHZ squarewave is already very good for AWG with 200 MHz sinewave BW.You can keep repeating this wishful thinking statements but still fail to explain what magical AWG can do this.What you would like to have would be specialized instrument.That would mix of both a pulse generator and AWG.And there are instruments like that. It is just you don't want to pay for it.You keep attacking random economy class instruments and call them and their manufacturers stupid because they don't provide high end features for few hundred euros...Because you would like it that way.I would like if we could have features of best LeCroy scope for 500 €.We would all like that, buddy. But I know we cannot. It is called reality.

author: RBBVNL9
author_rank: Frequent Contributor
timestamp: February 25, 2025, 12:54:41 pm
content: For anyone that wants an economy-price AWG but also fast square waves, I'd suggest simply adding a Leo BodnarLBE-1322Fast Risetime Variable Frequency Pulser.It can independently generate square waves from 30kHz to 300MHz, with a rise time and fall time of 30ps (!!!). Moreover, you can sync it with an external source, like the sine wave coming from an AWG (which typically has a higher maximum frequency than the square wave).Such a combination is probably a lot more cost-effective than an AWG supporting square waves of 300MHz...Best, Rudi

author: 2N3055
author_rank: Super Contributor
timestamp: February 25, 2025, 01:03:00 pm
content: Quote from: RBBVNL9 on February 25, 2025, 12:54:41 pmI actually understand Hpw needs something like this. I just think his reactions are not realistic.Leo Bodnar's pulser (and now this variable frequency one) is excellent. I have one since very early.Problem is that it cannot create variable output voltage to 5 V TTL levels. I believe 1.2 V is max.One solution would be to feed sine output form CH2 of AWG to some kind of squarer, and if that one would be made to have variable output level, that could be solution to his needs..

author: hpw
author_rank: Frequent Contributor
timestamp: February 26, 2025, 08:29:03 am
content: Quote from: 2N3055 on February 25, 2025, 01:03:00 pmYes, 3.3V digital signal would be a must have. The Leo looks very nice, but the output level is symmetric to GND and too low. So needs an output level converter.Thank you all anywayHp

author: hpw
author_rank: Frequent Contributor
timestamp: February 26, 2025, 10:06:02 am
content: Some update about Leo Bodnar:Low-jitter GPS-locked precision frequencyreference450 Hz to 800 MHz outputBoth output signals square wave at3.3V CMOS levelswith 50 Ohms characteristic impedance with 2 BNC connectors.Their output drive levels can be adjusted and outputs can be enabled and disabled independently.This means, as I have them already and used it for 10MHz reference freq calibrations only ....Hp

author: electr_peter
author_rank: Unknown
timestamp: May 26, 2025, 02:55:05 pm
content: Some specs of SDG3000X are enabled only by SW.BW options are SW limited (same specs across models, except for max BW).Standard 20 Mpts, optional 40 Mpts - SW option.SDG3000X IQ Generation Module (software) - SW option (unlike Siglent SSG3000X where only specific versions have IQ modulation HW installed).

author: tautech
author_rank: Super Contributor
timestamp: September 21, 2025, 09:12:03 am
content: Quote from: electr_peter on May 26, 2025, 02:55:05 pmAnd one more option yet to be determined what it's for: NTONENLStill familiarizing with this 200 MHz model and comparing with SDG1000X, 1000X Plus, 2000X and SDG6000X.Then how fast is 3000X Square and Pulse edges when SDG1000X can do ~4ns which is somewhat better than 1000X Plus and 2000X but not as fast as SDG6000X ~1ns.The Squarewave menu doesn't show edge speed however Pulse does with 4ns rise and fall being default however we can lower it to 3ns where you might think the additional ~300ps RT on a SDS6204A could push it over the rise/fall time spec but no, the 3ns RT is conservative.Pulse can also achieve 60MHz and the edges are adjustable but for clarity with the shortest and fastest pulse SDG3000X can provide I have wound it back to 20MHz.All of the above has been done remotely over both these instruments webservers and screenshots taken at the PC.

author: electr_peter
author_rank: Unknown
timestamp: September 21, 2025, 12:04:10 pm
content: SDG-MTONENLlicense - is it related to multitone functionality?

author: MathWizard
author_rank: Super Contributor
timestamp: September 21, 2025, 12:35:08 pm
content: Quote from: BillyO on February 22, 2025, 07:47:23 pmIs it also part scope and displaying the signal on screen ? Or an animation of it ? I guess that could be nice, but yeah, it won't stack nicely like other shoebox styles. or whatever they call it.Also, what sort of output transistors do AWG's use to get such fast signals ?

author: tautech
author_rank: Super Contributor
timestamp: September 22, 2025, 07:20:55 pm
content: Quote from: electr_peter on September 21, 2025, 12:04:10 pmIt might be but it doesn't appear in pricelists or mentioned options so it must be a development option which will now be released as a standard feature.Anyways release is just a few days away and we now have the official datasheet, as attached.

author: RBBVNL9
author_rank: Frequent Contributor
timestamp: September 22, 2025, 07:47:26 pm
content: Unless I am mistaken, the IQ option (software) for the SDG-3000X comes at around $630 (seehere). And the 39 Mpts Waveform Memory (software) costs $339 (seehere).

author: tautech
author_rank: Super Contributor
timestamp: September 22, 2025, 07:57:04 pm
content: Quote from: RBBVNL9 on September 22, 2025, 07:47:26 pmwww.transcat.comis US based and their pricing is impacted with the new tariffs.Our USD pricelist is a little cheaper.You'll have EU pricing in a few days.

author: tautech
author_rank: Super Contributor
timestamp: September 23, 2025, 10:02:27 am
content: Nice we can Sweep frequencyandamplitude with these....something the SSG3000X models can do too.

author: Furna
author_rank: Frequent Contributor
timestamp: September 25, 2025, 08:33:09 am
content: Official video on YouTubeSorry fo formatting; posting from mobilehttps://youtu.be/3YKMJn4t10c?si=5AcFQtewxnb1HpIcand EU web page with pricinghttps://www.siglenteu.com/waveform-generators/sdg3000x-series-function-arbitrary-waveform-generators/

author: tautech
author_rank: Super Contributor
timestamp: September 25, 2025, 03:04:08 pm
content: Official release is/was 25 Sept.https://int.siglent.com/products-overview/sdg3000x/https://siglentna.com/waveform-generators/sdg3000x-series-function-arbitrary-waveform-generators/

author: Martin72
author_rank: Super Contributor
timestamp: September 25, 2025, 06:45:56 pm
content: Batronix has already listed it, supposedly available in 1-4 days.https://www.batronix.com/shop/waveform-generator/Siglent-SDG3082X.html€821 is not too much and cheap if you could simply “upgrade” the device to 200 MHz using the familiar means.

author: RBBVNL9
author_rank: Frequent Contributor
timestamp: September 25, 2025, 07:24:21 pm
content: Interesting device!The pricing left me a bit confused, though. The "Siglent SDG-3000X-40MPTS Memory expansion" software option provides the instrument with an arbitrary memory length of 40Mpts, at a price of about €360 (including VAT).But... according to base model specifications presented on theSiglent EU website, all three base models already have... 40Mpts memory length.

author: Martin72
author_rank: Super Contributor
timestamp: September 25, 2025, 07:36:52 pm
content: This is an error on the retailer's part(Siglenteu is a reseller, not the official Siglent website).The data sheet is correct:https://www.batronix.com/files/Siglent/Funktionsgeneratoren/SDG3000X/2-Manuals/SDG3000X-Datasheet-EN.pdfAnd Batronix describes it correctly too.

author: RBBVNL9
author_rank: Frequent Contributor
timestamp: September 25, 2025, 07:48:11 pm
content: QuoteNot so sure about that.. The site I linked to,https://www.siglenteu.com, by any means, looks like to be the official, European Siglent website. And you cannot buy products from that side, instead they refer you to the over 50 resellers there are in Europe on the pagehttps://www.siglenteu.com/how-to-buy/Perhaps you are mistaking withhttps://www.siglent.eu/(which I was not referring to). They are indeed a reseller.

author: Martin72
author_rank: Super Contributor
timestamp: September 25, 2025, 08:05:18 pm
content: Yes, you're right, it's a bit confusing.But yes, then it's a mistake on the manufacturer's website.

author: 2N3055
author_rank: Super Contributor
timestamp: September 25, 2025, 08:47:32 pm
content: Quote from: RBBVNL9 on September 25, 2025, 07:24:21 pmWell technically all of those AWG do have 40 MPts installed ...But yes, it should have been written more clearly. They are standard 20 MPts and need a license to unlock it to full 40 Mpts.It is clear in the datasheet though.

author: Martin72
author_rank: Super Contributor
timestamp: September 25, 2025, 09:41:59 pm
content: I compared the data sheets for the SDG2000X, 3000X, and 6000X earlier—with a few exceptions, Siglent has actually managed to position the 3000X in the middle.

author: tautech
author_rank: Super Contributor
timestamp: September 25, 2025, 09:50:58 pm
content: Quote from: Martin72 on September 25, 2025, 09:41:59 pmSDG3000X easy covers what the now obsolete SDG5000 could do and more.They topped at 160MHz whereas SDG3000X goes to 200 MHz where the SDG6000X carries on from.There is a small overlap at the bottom end with SDG2000X in the 80-120 MHz range but above that SDG3000X now holds reign.But SDG3000X is a next level AWG with an entirely different and modern UI, full touch and mouse control, a good webserver and NTP time if you need it.

author: RBBVNL9
author_rank: Frequent Contributor
timestamp: September 26, 2025, 05:55:48 am
content: The IQ functionality of the SDG-3000X (optional, but I think all users get a temporary try-out license after purchase) is very interesting for anyone who wants to learn about modulation as it is used in telecom systems all around us (PSK, ASK, FSK, QAM, multitone, etc.).If you purchase the SDG-3000X and want to learn about these waveforms, but do not own a signal analyser or other device that allows inspection of IQ constellation, you can check this video to see howalmost any regular oscilloscope can be used to show the IQ vectorsan oscilloscope with blanking (in my own lab, the R&S RTB2000 and the Keysight DSOX can do that, among others) in combination with smart use persistence settings can actually show you the IQ constellation diagram

author: S13
author_rank: Regular Contributor
timestamp: September 27, 2025, 11:07:53 am
content: Quote from: RBBVNL9 on September 26, 2025, 05:55:48 amThat is an interesting video you made there! Much appreciatedIve often wondered about IQ signaling, but found it a bit out of reach for hobbyists. The way you show constellation diagrams on a scope is quite inventive. Maybe with these newer affordable function generators, i might get started with it some day.I came across this video from R&S that shows what you can measure with a scope's XY mode, and the constellation part also comes up. Although the blanking method that you used in your video isn't mentioned.

author: RBBVNL9
author_rank: Frequent Contributor
timestamp: September 27, 2025, 05:10:20 pm
content: S13, appreciate the compliments on the video!IQ is indeed now finding its way into some newer and more affordable devices, including this SDG3000X. But an alternative way is finding a pre-owned professional vector signal generator, which can be found at quite reasonable prices these days, and usually also include RF modulation up to 3GHz. Plenty of models were made by R&S, Keysight, Anritsu, and more.About the blanking method: it is a powerful tool, and it was once almost standard on better scopes. But in current days, unfortunately, it is not implemented all that often anymore. My Keysight DSOX1204G has it (although I have not used that one yet for IQ constellation tests), and my R&S RTB2000 kind of has it - you can get it to work using the commands I show in my video, but it's not mentioned anywhere in the manual and seems to be a function that was not fully finished in terms of implementation...

author: RBBVNL9
author_rank: Frequent Contributor
timestamp: September 28, 2025, 08:14:21 am
content: Since the SDG3000X has (optional) IQ support, it is clearly entering the domain of telecom signals. In that domain, IQ generators can (1) create ‘live’ IQ streams or (2) playback sampled IQ streams (i.e., ARB), or (3) do both. I made some videos of both these approaches (includingREL #33,REL #35,REL #52andREL #17). In my own lab, the R&S CMU200 is of the first strategy, the R&S SMIQ can do both (with the right options installed), while the Anritsu MG300A is purely of the second strategy (*). The typical use of a sampling device is then to play back a wide range of waveforms like cellular communications (2G, various 3GPP, etc.), WiFi, ODFM multitone patterns, radar chirps, GPS signals, Bluetooth, digital radio or TV (DVB), and much more.Looking at the SDG3000X, it is clearly in the sampling category. But strangely enough, this does not seem to sit well with the choices of waveform memory that Siglent made. Having 20Mpts of memory (or 40Mpts when you get the €360 option) does not really allow you to do much in terms of uploading the I and Q channel of any stored waveform. Also note that since you need one 16-bit word for the I and one 16-bit word for the Q, the total memory halves, so the IQ memory depth is 10 million IQ samples per second for the standard device and 20 million IQ samples for the one with the memory option installed. To me, that sounds like very limited memory capacity for any IQ scenario.In current days, it should not be hard to include much more memory at this price point, should it not? In comparison, the Anritsu MG3700A I just mentioned, which I bought second-hand for about €750 on eBay, is from 2004 but already has 1Gpts of memory (thus 500 million IQ samples per second (**). That really allows you to upload waveforms like the ones I mentioned above. And the Anritsu even got tons of these waveforms included on the built-in drive, which can then be uploaded to that memory.(*) Looking at the R&S offerings alone, there are also a lot of other machines that do sampling (i.e., ARB), including AFQ, AM300, AMIQ, AMU, BTC, CMP, CMW, PVT, SFI, SFU, SGT, SMATE, SMBV, SMBVB, SMCVB, SMJ, SMM, SMU, and SMW.(**): The MG3700A has 2GB of memory, and as each sample needs a 16-bit word to store, it has 1Gpts of waveform memory.

author: 2N3055
author_rank: Super Contributor
timestamp: September 28, 2025, 09:44:30 am
content: Quote from: RBBVNL9 on September 28, 2025, 08:14:21 amNot really simple like that. Which makes all suppositions stemming from there not right. Good thinking, bad premise.If the AWG would simply replay AWG for I/Q as simple ARB, there would not be need for switching to special mode.Quote from: RBBVNL9 on September 28, 2025, 08:14:21 amAnd then you list a long list of instruments that cost as much as a house when bought new .Simply adding a lot of memory will not work if everything else is not up to par.You know that... BOM optimization is the thing if you want to survive as a business.You optimize device for the market placement.It is not a hobby where we put all the best and then get device that is 20x overspecified in places (an that much more expensive) while still getting same results.Siglent has 512Mpts AWG, price is not low cost. There is another one in China that is 4GPts. I don't know the price but I guess more than my car.Regards,

author: RBBVNL9
author_rank: Frequent Contributor
timestamp: September 28, 2025, 04:29:12 pm
content: 2N3055, thanks.Your comments about market positioning and BOM are interesting, and they kind of intersect with the questions I have. While the SDG3000X IQ option certainly does not cost as much as a car, its price of €570 is not trivial either, especially for the audience of this unit (and for the 40Mpts memory option, it’s another €360). If you are willing to pay that amount of money, I assume you do have a use case or a reason why you want IQ functionality, and I assume that you expect it to work well for your use case.In my humble view, it would have made much more sense to physically have 20Mpts memory in the base unit – thus saving on BOM, especially if you worry about the costs of memory – while offering a much more capable (physical) memory option, and that hardware perhaps bundle it with the IQ option. Those who need it, pay for it. The result would sit clearly below something like a Siglent SDG7000A, but at a lower overall price.Or, alternatively, leave the implementation as it is, but have the IQ mode included as a standard, not an expensive paid option. This way, all users can play with it, enjoy it and learn from it, in terms of basic understanding of concepts, and those that actually need IQ seriously (and thus enough memory for real waveforms, and quadrature performance and sophistication needed for real tests) will invest in machines meant for that, like Siglent's SDG7000A series (more on that below).Then on the price of suitable memory modules… As far as I can judge, this does not require anything special. The MG3700A, for instance, uses a fairly standard off-the-shelf memory module – I think it’s a Micron Memory Card PC133U module. I did not open mine today, but you can see it in The Signal Path video TSP #198 at 2:29, with one 1 GB module installed at the top and another one at the bottom – the same sample memory configuration as my own machine. Back in 2004, these modules might have carried some costs (but certainly not outrageous), but right now, 20 years later, memory of 1GB, 2GB or 4 GB really should not break the bank, also not for BOM.QuoteNot sure I am following you. An IQ generator is really just like two ARB generators running side by side. The special thing is the quadrature modulator that follows it and creates an IF signal. See the block diagram on the SDG3000X manual, page 59, but you will find the same block diagram in any IQ generator manual, really. The exact implementation of the quadrature modulator may vary (and get more sophisticated) depending on the needs of the user (and the telecom standards involved). If memory serves me well, the CDMA2000 standard, for instance, entirely flipped around the quadrature angles compared to other standards. And typically, in the quadrature modulator, you find settings as gain (in)balance, offsets for each channel, and fine modulation angle offsets. And sometimes much more, like channel leakage, fading and channel simulation (can be super complex), filtering (like Cosine, Square Root Raised Cosine, Gaussian, Bessel, or specific to some telecom standard), all parameters which may be user-defined or not for a given implementation of a quadrature modulator. So yes, IQ is a special mode, but the special stuff is in the quadrature modulator, not the ARB side of things.(Actually, a while ago, I did some very basic experiments with a signal generator with two synced ARB players, and then do the quadrature modulator externally with an Analog Devices AD8345 – same mechanism, but in these case the (analogue) modulator was getting its inputs from analogue outputs of D/A , whereas in modern devices, the modulation is in the digital domain and D/A follows only after.)So, finalising now, please do not get me wrong, I am not suggesting that the SDG3000X should be similar in performance to the SDG7000A series (which also has optional IQ support), or have all similar components. I think I am just confused about where the 3000X IQ function is positioned, market-wise. At €570, it must be more than a gimmick, but without enough waveform memory, it cannot create many real-life IQ signals either.Best regards, Rudi

author: Zondar
author_rank: Regular Contributor
timestamp: September 28, 2025, 06:56:15 pm
content: The SDG3082X is in stock at siglentna.com (US customers) for $799. This site, too, claims that this model at this price is 40 Mpoints. If I bought one, I'd expect them to deliver that!It's interesting, but I wish they would similarly upgrade the 6000x soon.

author: 2N3055
author_rank: Super Contributor
timestamp: September 28, 2025, 07:03:31 pm
content: Quote from: RBBVNL9 on September 28, 2025, 04:29:12 pmRudi,I do not wish for my post to be construed as critique. I merely tried to attribute data points to your post.Firstly to explain my first point. Yes, funny as it may see to a hobby user (or a small business owner short on cache) 600€ for an AWG of that calibre is basically pocket money. If you don't trust me look at options by R&S, Keysight, Tektronix etc..These are economy instruments, and as much as Siglent genuinely wants to give more for the money to their customers, you must appreciate there must be smoe real world limits of how far that can go.As for gimmicks, there are none. Unlike some other manufacturers, this is not their strategy as far as I am familiar with situation.If anything they try to be professional, reliable option in affordable instruments.I/Q: I apologize for not explaining better. You are thinking in a box. You would do what you say on a pure AWG. But that is not only way. All of those are digital modulations. They have discrete steps. You can feed the generator a modulation plan and sequence, if it has support for that.Best,Siniša

author: 2N3055
author_rank: Super Contributor
timestamp: September 28, 2025, 07:05:05 pm
content: Quote from: Zondar on September 28, 2025, 06:56:15 pmIn what way do you mean, could you explain please?I am not sure what you mean.

author: Zondar
author_rank: Regular Contributor
timestamp: September 28, 2025, 08:42:31 pm
content: Quote from: 2N3055 on September 28, 2025, 07:05:05 pmI just meant that the SDG6000x series is better suited to my needs, especially the higher pulse rates and faster rise/fall times. But the new interface on the 3000x looks far more user friendly. Updating the 6000x along those lines feels inevitable, and I'd wait for that if I knew how long it would take.

author: 2N3055
author_rank: Super Contributor
timestamp: September 28, 2025, 09:17:17 pm
content: Quote from: Zondar on September 28, 2025, 08:42:31 pmAha the big screen..Well there is already a big fight between those who like and hate this new form factor.6000X has standard instrument size that fits well into rack and on the shelf. It is small and powerful.3000X is the size of the scope and takes much more space on the desk.My preferred one would be 7000A to be the size of 6000x and have a virtual holographic 20" screen..Jokes on the side, there are two schools here and both have it's advantages, depending on what you do.

author: Zondar
author_rank: Regular Contributor
timestamp: September 28, 2025, 09:30:20 pm
content: Oh yes, I'll take a 7000A!The interface on their smaller models appears to have been inspired by an Agilent unit from the 80's or 90's. I have one and dislike it. I do find myself using the touch-screen on my scope more than the buttons, too. On the other hand, I'd definitely prefer a stacking unit. My bench is crowded enough - but not crowded enough to pass on buying something new!

author: Martin72
author_rank: Super Contributor
timestamp: September 28, 2025, 09:42:03 pm
content: I have to say, I'm still a little unfamiliar with the new form factor, even though I prefer the larger screen.I find the touch function on my SDG6052X display unnecessary because the display is too small for it (4.3“).The display on my SSG3032X IQE, on the other hand, has just the minimum dimensions where touch makes sense (5”).

author: KungFuJosh
author_rank: Super Contributor
timestamp: September 28, 2025, 10:45:14 pm
content: I like the touch screen and form factor of my SDG6052X. If I had a huge office with a lot more space, I might like bigger screens too, but I don't see the point so much on a sig gen. Scopes? Yes. SA/VNA? Absolutely.

author: tautech
author_rank: Super Contributor
timestamp: September 28, 2025, 10:47:28 pm
content: Quote from: Zondar on September 28, 2025, 08:42:31 pmYup the 6000X is a well featured AWG and fits well for most so that it can be stacked in a proper test equipment work station but 3000X is not targeted at that use case but fills the gap between 120 and 200 MHz and also introduces us to a new 7" display GUI quite different to *000X models and SDG7000A with its smaller 5" display.Product lines always evolve and a really deep memory 7" display SDG8000A 4ch AWG is also coming but for us hobbyist I expect the price to be well beyond most of us.

author: Zondar
author_rank: Regular Contributor
timestamp: September 28, 2025, 10:54:14 pm
content: Quote from: tautech on September 28, 2025, 10:47:28 pmThis would be a 6000X update or a 7000A update? I guess the latter, but with the "call for quote" price on it, I'd have to pass.

author: KungFuJosh
author_rank: Super Contributor
timestamp: September 28, 2025, 11:02:03 pm
content: Quote from: Zondar on September 28, 2025, 10:54:14 pmOnly $17k on aliblahblah:https://www.alibaba.com/product-detail/Siglent-SDG8004A-Maximum-4-Analog-Output_1601582728473.html

author: tautech
author_rank: Super Contributor
timestamp: September 29, 2025, 12:24:55 am
content: Quote from: Zondar on September 28, 2025, 10:54:14 pmNeither IMHO.It's another model series pushing capability and BW higher but when we will get to see it in the West is another matter.I have zero SDG8000A inside knowledge ATM.

author: Grandchuck
author_rank: Super Contributor
timestamp: September 29, 2025, 04:29:24 pm
content: It arrived!So far so good. I have already had to RTFM. It is not as straightforward as my SDG2000X, but of course it can't be.

author: electr_peter
author_rank: Unknown
timestamp: September 29, 2025, 05:40:55 pm
content: Quote from: Grandchuck on September 29, 2025, 04:29:24 pmHow do you like the GUI? Is the encoder response faster than on SDG2000X? How noisy is the fan?

author: electr_peter
author_rank: Unknown
timestamp: September 29, 2025, 05:44:14 pm
content: Quote from: Martin72 on September 28, 2025, 09:42:03 pmI concur. I not sure I've ever used touch screen on SDG2000X on purpose beyond some testing, it's far too small for touch operation.

author: Grandchuck
author_rank: Super Contributor
timestamp: September 29, 2025, 06:39:20 pm
content: How do you like the GUI? Is the encoder response faster than on SDG2000X? How noisy is the fan?The GUI is fine. The complexity for me is that there are many new (to me) options. First time I tried using both channels, the phase was not what I expected. There is a Multi-Channel menu selection and both Independent and Locked are available. IOW, since I just received it, I am on the steep part of the learning curve. But, it all seems sort of intuitiveThe encoder is different. One click is as expected ... a large turn produces multiple steps with audible feedback. I should have no problems with it.The fan is louder than I thought it would be ... but not annoying.The boot time is 57 seconds.

author: tautech
author_rank: Super Contributor
timestamp: September 29, 2025, 07:12:40 pm
content: Quote from: Grandchuck on September 29, 2025, 04:29:24 pmFor ordinary/normal use, use it in AFG mode.With the 3 USB sockets I've taken to using mine with a mouse.I found the LAN very easy to set up and NTP time just as easy.ETAA long press of the encoder sends a screenshot to USB.

author: jusaca
author_rank: Unknown
timestamp: September 30, 2025, 09:22:03 am
content: Quote from: Grandchuck on September 29, 2025, 06:39:20 pmDid you have a look inside? Maybe the fan can be tuned a little bit with a noctua one or similar1 minute boot time... Well, it is what it is, I guess...

author: RBBVNL9
author_rank: Frequent Contributor
timestamp: September 30, 2025, 10:05:25 am
content: QuoteIf the SG3000X further builds on the software found in the 1000X, 1000X Plus, and 2000 models, then there might be a chance that the boot time could be brought down significantly.Why am I saying that? When testing the 1000X, 1000X Plus, and 2000, I found that the boot time increased from approximately 23 seconds to about 45 seconds after performing a (minor) firmware upgrade. It almost felt like some booting sequences were suddenly performed twice... I even think that, after the firmware upgrade, it initially became slow, then the device started up quickly a couple of times, and then it became slower again.Possibly, some optimisation by the s/w engineers could result in quickly booting machines again!

author: 2N3055
author_rank: Super Contributor
timestamp: September 30, 2025, 02:04:19 pm
content: SDG3000X is new design. It supports Web remote and plethora of other stuff old ones did not. GUI is fully graphical, with dialogs and such.There is obviously more complexity in software underlying all of that.So comparing boot times with its older brethren will not gain much insight.

author: RBBVNL9
author_rank: Frequent Contributor
timestamp: September 30, 2025, 02:51:27 pm
content: Like I wrote, I can’t say for sure whether it shares much of the same code or not. (Although I’ve got my thoughts about how likely is one would start from scratch.)But I can say that it’s its web remote interface is not a first; it’s also there on the SGD1000X Plus - see my video review of that unit. As well as a lot of other stuff, like the PRBS, the sequenced ARB, etc.

author: 2N3055
author_rank: Super Contributor
timestamp: September 30, 2025, 03:01:01 pm
content: Quote from: RBBVNL9 on September 30, 2025, 02:51:27 pmWithout going into too much details, it is new design.Code reuse is always there, code is portable, but on the level of system it has more in common with some other instruments with full GUI on the OS level. That alone will make boot times different, it simply needs to load more stuff.

author: electr_peter
author_rank: Unknown
timestamp: October 01, 2025, 05:54:29 pm
content: Does SDG3000X output FM modulation result in signal drift from sync? Say 10MHz carrier, 50kHz FM freq with 25kHz modulation or something similar. Example of drift withSDG2000X

author: 2N3055
author_rank: Super Contributor
timestamp: October 01, 2025, 06:37:08 pm
content: Quote from: electr_peter on October 01, 2025, 05:54:29 pmYou mean the bug that was solved two years ago?

author: Grandchuck
author_rank: Super Contributor
timestamp: October 01, 2025, 06:40:26 pm
content: Quote from: electr_peter on October 01, 2025, 05:54:29 pmThis is what I see.

author: electr_peter
author_rank: Unknown
timestamp: October 01, 2025, 07:04:42 pm
content: Quote from: 2N3055 on October 01, 2025, 06:37:08 pmMany AWGs have this "feature", probable missed update on SDG2k as signal drift is gone now.

author: 2N3055
author_rank: Super Contributor
timestamp: October 01, 2025, 07:09:37 pm
content: Quote from: electr_peter on October 01, 2025, 07:04:42 pmAt the time it was only 2000x that had that bug, and it was solved on next FW.I could not check it myself at the time because I only had 6000X that worked perfectly in that regard.And it is more than Ok that you missed it. It is not like all we do is looking into new FW every day...I myself usually find out about public releases here on EEVblog when Tautech post...

author: electr_peter
author_rank: Unknown
timestamp: October 01, 2025, 07:34:19 pm
content: FM deviation should be good then.Question on size - is SDG3000X in the same form factor case as SSA3000X Plus spectrum analyser? Backside pictures look very similar.EDIT: wrong impression, SDG3000X is smaller and more manageable on workbench than SSA in all dimensions.

author: 2N3055
author_rank: Super Contributor
timestamp: October 01, 2025, 07:44:21 pm
content: Quote from: electr_peter on October 01, 2025, 07:34:19 pmIt is the size and form of SDS800xHD.

author: tautech
author_rank: Super Contributor
timestamp: October 01, 2025, 08:12:33 pm
content: Quote from: 2N3055 on October 01, 2025, 07:44:21 pmAnd pretty much all the SDS1000DL/CML/X-E series models too.Quote from: 2N3055 on October 01, 2025, 07:09:37 pmIf you are subscribed to Siglent's monthly newsletter all new FW gets links from that email.Quote from: electr_peter on October 01, 2025, 07:34:19 pmCorrect.Formfactor is similar but SSA models use a larger display so are wider and taller.

author: 2N3055
author_rank: Super Contributor
timestamp: October 01, 2025, 08:32:40 pm
content: Quote from: tautech on October 01, 2025, 08:12:33 pmYou are reliable and never miss a beat... No upgrade to that.

author: Grandchuck
author_rank: Super Contributor
timestamp: October 03, 2025, 02:50:08 pm
content: A nit to pick. Why are the colors reversed? I know that I can change the scope but I don't want to

author: Martin72
author_rank: Super Contributor
timestamp: October 03, 2025, 03:39:10 pm
content: Hm?What you see on the scope are the channel colours of the scope, the AWG cannot influence them - if you want the colours to be different, you just have to set them on the scope...

author: voltsandjolts
author_rank: Unknown
timestamp: October 03, 2025, 04:00:53 pm
content: I guess what he means is that front panel of siglent scopes have ch1=yellow, ch2=pink.But this sig gen front panel has ch1=blue ch2 = yellow.My ocd might prefer them to be consistent

author: Grandchuck
author_rank: Super Contributor
timestamp: October 03, 2025, 04:20:15 pm
content: OCD ... guilty!

author: Martin72
author_rank: Super Contributor
timestamp: October 03, 2025, 05:31:18 pm
content: Ahh....

author: Grandchuck
author_rank: Super Contributor
timestamp: October 08, 2025, 05:06:44 pm
content: I am continuing to play and learn about it. Last experiment was with the digital filtering.

author: Grandchuck
author_rank: Super Contributor
timestamp: October 08, 2025, 08:52:31 pm
content: Since it was already hooked up to the spectrum analyzer ...