Siglent SDS1000(X) / SDS2000(X) or LeCroy WaveAce (Blackfin) hacks? - Page 1
Forum section: electronics / testgear

author: tv84
author_rank: Super Contributor
timestamp: July 24, 2018, 08:32:53 am
content: Anyone with a SDS2000(X) or old SDS1000xxx range has tried a Bandwidth upgrade on these?Options are easy but BW should require a few more tweaks.I'm developing a memdump procedure based on SCPI commands that can be used to dump these BF equipments.If anyone is interested in helping....

author: tv84
author_rank: Super Contributor
timestamp: August 11, 2018, 09:52:16 pm
content: So, resuming:- SCPI memdump -- Options licensing -- BW patch - Almost done (at the moment, it's a single bit toggle to convert from 200 to 300MHz but... may not be enough...)

author: KeBeNe
author_rank: Regular Contributor
timestamp: August 13, 2018, 02:50:07 am
content: great work!the SDS2000X are limited BW by hardware,How did you do that with the options and the name?Could you help me, but my skills are bad at programming

author: tv84
author_rank: Super Contributor
timestamp: August 13, 2018, 01:30:57 pm
content: Can anyone explainpreciselythe "limitation" in HW? I would apprecciate some HW photos of a SDS2204X and SDS2304X to compare. (I saw the teardown video but that seems a comparison between a 1000X and a 2000X version!)Nonetheless, if that's true, taking the HW limitation and adding my patch all becomes official (designations, behavior, SCPI responses, ...)But, I'm still trying to obtain the signal changes before/after SW patch.The licenses can be read directly from the memdump,as always.

author: PartialDischarge
author_rank: Super Contributor
timestamp: August 13, 2018, 02:32:06 pm
content: Weird that the bw is hardware restricted, could be but why go against the hacking spiritkeep up the work!

author: tv84
author_rank: Super Contributor
timestamp: August 13, 2018, 03:24:58 pm
content: These are 3 frames taken from Dave's teardown video.Showing a SDS2304X (300 MHz) and a comparison to a SDS1000X.

author: tv84
author_rank: Super Contributor
timestamp: August 13, 2018, 03:28:47 pm
content: These are 2 pics taken from the SDS2204X (200 MHz) being "analysed".(sorry about resolution)But, who can spot the differences to the 300 MHz unit?IMHO it's difficult to conclude visually that the HW "filter" is different (besides different PCB versions...) from the 200 MHz to the 300 MHz. Probably it's only a SW limitation...BTW, I heard a "rumour" that the SDS1000X/2000X FW, in the past, had a BW license insert menu. If that was true, then there is no HW difference.Also, if that was true then tell me which version it was and we'll do it "officially".

author: PartialDischarge
author_rank: Super Contributor
timestamp: August 13, 2018, 03:43:34 pm
content: IF there was a bw restriction by hardware it would most probably be in the ADCs or close to these and not in the attenuators

author: PhilipPeake
author_rank: Regular Contributor
timestamp: August 13, 2018, 04:03:52 pm
content: "Options are easy"Want to share?

author: bugi
author_rank: Regular Contributor
timestamp: August 13, 2018, 04:42:27 pm
content: Considering that a bandwidth limit "factory option" can be something as simple as inserting couple capacitors (with specific values, that is), and most small SMD ceramic caps have no markings whatsoever, it might be impossible to see the differences visually. One might need to actually measure component differences between models.That quite horrible looking soldering result in one the photos could indicate manually soldered components, which could in turn indicate that the BW limit would indeed be set at factory by adding the needed components to "stock" PCBs. Or it could just be a quick fix on a less than perfect board from the automated line.But then again, if it would be so simple as 2-3 components, finding the differences would still allow relatively easy hack of changing those components by oneself. Even reverse-engineering the front-end might do the trick, but analyzing the differences might be easier/faster.

author: KeBeNe
author_rank: Regular Contributor
timestamp: August 14, 2018, 03:50:01 am
content: here is my HW mod on 2104x, this changed the 3db limit from around 250Mhz to 350Mhz

author: kado
author_rank: Regular Contributor
timestamp: August 14, 2018, 06:23:50 am
content: KeBeNe: can't read the red words in the picture. Did you remove or exchange a cap ? Thanks for a little more information.KarstenGesendet von iPhone mit Tapatalk

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 14, 2018, 06:44:22 am
content: FYI,the AD8370 is a low cost, digitally controlled, variable gain amplifier (VGA)http://www.analog.com/media/en/technical-documentation/data-sheets/AD8370.pdf-3dB @ 750MHz, 40dB gain range, serial 8-bit interface (7bits without MSB is gain code)I'm not quite sure if there is a BW restriction by passiv caps. It's more probably that FWinfluence the max BW.Any comments or expirience on this issue?MarkusPS.: see fig. 7 - gain code values.PS2.: Perhaps I'm wrong. The DS describes the influence of the Output C's on page #17++If a 1nF cap us used instead of 10pF the differenc is round 2.1dB @ 100MHz.So this could be a point to take into account concerning BW max.

author: KeBeNe
author_rank: Regular Contributor
timestamp: August 14, 2018, 09:51:10 am
content: Yes, i have removed this capacitors

author: bugi
author_rank: Regular Contributor
timestamp: August 14, 2018, 10:20:16 am
content: The AD8370 can be used for adjusting the gain (vertical) somewhat smoothly, but, referring to that same fig.7, note how the bandwidth (-3dB relative to the low-frequency level) is almost the same no matter what gain/setting is used. Having such flat response to as high a bandwidth as possible independent of the gain setting is actually intended for a typical VGA.(Also note, the page 17 talk on capacitors is about connecting the input signal in AC-coupled mode through caps; in an oscilloscope the connection would likely be DC coupled. Some other arrangement a little bit away from the VGA would be used for bandwidth limit, especially considering that "care must be taken to minimize parasitic capacitance on the input and output. The AD8370 could become unstable with more than a few pF of shunt capacitance on each input".)

author: tv84
author_rank: Super Contributor
timestamp: August 14, 2018, 12:43:50 pm
content: Quote from: KeBeNe on August 14, 2018, 03:50:01 amThat's precisely what is visible in Dave's teardown, right? His 2304 doesn't have those caps!So, if the HW change is only removing those caps, I can provide the "cosmetic" sw change.

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 14, 2018, 12:51:48 pm
content: @tv84,But please take into consideration, that this caps are already removedin the pics you provide for the SDS2204X dso that only provide about225MHz -3dB BW.So parhaps the caps value itself makes the difference.Markus

author: tv84
author_rank: Super Contributor
timestamp: August 14, 2018, 01:09:02 pm
content: Quote from: markus_jlrb on August 14, 2018, 12:51:48 pmIf the SDS2204X does not have the caps (as you noticed), then the other components must make the difference.We'll have to try measure the others components that are hand-soldered.But, Markus, the PCB that I showed is not precisely the same as Dave's (and KeBeNe).

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 14, 2018, 06:25:27 pm
content: Dear'sneed some help identifying the attached ic's.Have found them when looking deeper insidethe sds frontend amplifier stage.One of them could be TI's ADS7822 (12bit ADC 200kHz)the other named AUE7256 is unkown to me.And hints which manufacturer and which type theseeight pin ic is.Thanks in advance for any helpful info.Markus

author: tv84
author_rank: Super Contributor
timestamp: August 14, 2018, 07:38:15 pm
content: Quote from: markus_jlrb on August 14, 2018, 06:25:27 pmIt looks like 7258, not 7256.

author: SMB784
author_rank: Frequent Contributor
timestamp: August 14, 2018, 09:29:15 pm
content: Quote from: tv84 on August 14, 2018, 07:38:15 pmLooks to me to be 7258 as well.

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 15, 2018, 07:16:19 am
content: But which component with what functionality?The ADS7822 (12bit ADC 200kHz) - if it is the proper ic - couldbe for offset control. See Daves video on YT about R&S DSO.But what is the 7258 or 7256 and what is the inon (half circle)stands for?Markus

author: tv84
author_rank: Super Contributor
timestamp: August 15, 2018, 01:46:18 pm
content: Quote from: markus_jlrb on August 14, 2018, 06:25:27 pmLooking at Dave's video, we can see a IC with the same 6552 (and a different reference on top).So, this is a LMH6552 - LMH6552 1.5-GHz Fully Differential Amplifier.Look at this thread, they did the same investigations to increase a Keysight scope BW:https://www.eevblog.com/forum/blog/eevblog-978-keysight-1000x-hacking/375/Edit1: rf-loop, just discovered this other thread.

author: rf-loop
author_rank: Super Contributor
timestamp: August 15, 2018, 02:00:28 pm
content: Quote from: markus_jlrb on August 14, 2018, 06:25:27 pmImho:AUE = model... nice quesswork (example LMH6629 (sure it is not))under it I believe there is datecode.If you analyze even tiny bit this circuit you can see that signal coming in (after relays) is splitted to two pathways before this IC. Other pathway go to discrete fet HF amplifier and other pathway (DC and low freq (there you see also AC/DC switch "Cosmo") come to this "AUE" IC pin 3 and as can see IC output is pin 6.Without further explanations what I know or do not know or what ever...I "believe" it is (single) operational amplifier in MSOP8 type case(This scope front end is classic "dual pathway" (separate pathways for DC-LF and HF) type what is widely used in this kind of oscilloscopes..)This is only guiding hint and enough from me.

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 15, 2018, 05:06:20 pm
content: @rf-loop,thanks for clarification and your hints and link advisory.MarkusPS.: Btw - what function has the 595 serial/parallelshift register? Is it needed for relais switching control?Markus

author: tautech
author_rank: Super Contributor
timestamp: August 16, 2018, 11:36:20 pm
content: Quote from: KeBeNe on August 14, 2018, 03:50:01 amThat's sounds about right for a 2304X -3dB point.A screenshot I've posted before on the forum plus an additional few for reference.HP 500 MHz sig gen used for all these screenshots.Factory SDS2304X, 100mV signal:200 and 300 MHz shots below = 1V p-p signalIt can be seen in the 500 MHz screenshot (100mV p-p) is past the stability frequency of the internal counter.

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 17, 2018, 08:35:34 am
content: @tautechcould you please provide a sweep picture, if your sig gen iscapable of this feature to see the flatness of the BW modwhen the caps are removed.ThanksMarkus

author: tautech
author_rank: Super Contributor
timestamp: August 17, 2018, 09:08:06 am
content: Quote from: markus_jlrb on August 17, 2018, 08:35:34 amSorry I can't as I don't have an AWG that can sweep to high frequencies.ATM 30 MHz is the best I have.You have SSA don't you ? Maybe that will do.

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 17, 2018, 09:18:46 am
content: The caps are mounted between the pos and neg output(OPHI/OPLO) of the AD8370 var gain amp.Both lines are have round 50 ohm impedance accordingto DS (100Ohm diff).Have made a LT-Spice simulation to check the influenceof the cap in parallel to the output (Pin 8/9)

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 17, 2018, 09:26:54 am
content: The LT-Spice file is attached too.To play arround, remove the .txt suffix.The 0.95(V(n002)-V(n004) 5% recuctionis due to avoide overlapping of the redcurve.bouth sig gens have 1V amplitude so that thedifference is 2V and the corresponding voltageat load (ADC) should be 1V without attenuationand influence of the cap.As I do not know the ADC input impadance, I tookthe same as the gain amp has in the hope the disignis matching the impedances 1:1.The C value is sweeped from 1pF to 10pF to visualizethe cap influence - BW reduction.MarkusPS.: The simulation was made for 200MHz as I wouldlike to compare with my DSO.

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 17, 2018, 07:23:40 pm
content: FYI,I can confirm the mod described by tautech extend the BW above 300MHz.For my model SDD2204X only one cap is mounted nearby the AD8370 icin front of pin 8 and 9. This one cap I had desoldered today.The 3dB (voltage) BW is located at 330MHz.10dB BW reach the 70cm ham band at 440MHz. (50mV/div) of a 1Vppsignal.I have attached some pictures measured with my DSO.MarkusPS.: The 500MHz signal is passing a 3dB splitter to a second scopeto compare the sigs. Means that the 316mV from the SMY01 has to bedevided by 0.707.

author: tautech
author_rank: Super Contributor
timestamp: August 17, 2018, 07:34:44 pm
content: Quote from: markus_jlrb on August 17, 2018, 07:23:40 pmFYISo there is no confusion, the waveforms I have posted are from factory SDS2304X, unmodified in any way.The signal amplitude/s in screenshots are either 1V or 100mV p-p so roll off can easily be seen.The screenshots were not taken in one session.

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 17, 2018, 07:43:23 pm
content: Sorry tautech,It was the post from KeBeNe and his mod.But good to know that the dso BW is comparablewith the factory tuned.Markus

author: tv84
author_rank: Super Contributor
timestamp: August 17, 2018, 07:51:53 pm
content: Quote from: markus_jlrb on August 17, 2018, 07:23:40 pmCool!And, if I'm successfull in my investigations, soon you'll all be able to reclassify the scopes to the SDS2304X category (to match it's newer HW capabilities).I think it's just a magic byte that needs to be changed...

author: KeBeNe
author_rank: Regular Contributor
timestamp: August 18, 2018, 07:12:30 am
content: Here is my measurement with 100mV, -3db point and 500Mhz.@ tv84, that would be great and then all the options, have all bought up on PAS, I would like to have them

author: tv84
author_rank: Super Contributor
timestamp: August 18, 2018, 09:59:24 am
content: All the "investigations" talked about in this thread should be applicable to the Lecroy models:WA102WaveAce 1001 40MHzWaveAce 1002 60MHzWaveAce 1012 100MHzWA204WaveAce 2014 100MHzWaveAce 2024 200MHzWaveAce 2034 300MHzWaveAce 2004 70MHzWA202WaveAce 2012 100MHzWaveAce 2022 200MHzWaveAce 2032 300MHzWaveAce 2002 70MHz

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 18, 2018, 11:46:21 am
content: @KeBeNe>Here is my measurement with 100mV, -3db point and 500Mhz.Should be much more then -3dB from 300MHz to 500MHz.(or did you other additional mods besides the cap removal?)My scope (modified) have around 17dB att. from 300MHz to 500MHz.The -3dB point is located around 325MHz.The gen. provides 316mV/eff. Sig was splitted by a resistive powerdevider ( att > -6dB), so at scope input the amplidude @500MHz is:316mV * sqrt(2) / 2 = 223mV (amplitude) and the scope shows 30mV(amplitude) ==> 17,4dB attenuation. (a faktor of 7.4 concerning voltagefrom sig to scope displayed)Hopefully not making a mistake in my calculation ;-)Markus

author: tv84
author_rank: Super Contributor
timestamp: August 18, 2018, 12:15:17 pm
content: Markus,Show us a freq. sweep of the new config.

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 18, 2018, 04:45:29 pm
content: As requested,the bw picture from 10MHz to 500MHz.Zero line shifted down to get a better resolution.MarkusPS.: Looking for marker hints. Perhaps a second channelis uesfull to do this to mark the -3dB point.

author: KeBeNe
author_rank: Regular Contributor
timestamp: August 18, 2018, 05:39:50 pm
content: here a sweep from 1 to 800Mhz from my scope

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 18, 2018, 06:15:07 pm
content: @KeBeNe,looks very ipressive, -3.6dB at 460MHz.But I wonder about the increased voltagelevel at low frequencies.You have terminated the dso input with 50Ohm properly?Sorry that I ask. It's a big difference if I comparewith my scope. Did you make other mods?Btw what is your smallest time base value.1ns or less?Markus

author: KeBeNe
author_rank: Regular Contributor
timestamp: August 19, 2018, 04:51:12 am
content: So, the SMT06 is no longer in ALC mode at 1V, the levels are no longer true. I did not pay attention.We should agree on measurement levels and settings on the SDS (setup file from the SDS).For the measurements, I activate the internal 50ohm resistor.1ns is my smallest time.Other modifications than the 4 capacitors removed I have not done, maybe there is still a calibration file, that would be an explanation

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 19, 2018, 07:49:19 am
content: @KeBeNeI have modified your pic with some markers.Now It's look for my more realistic.Thanks for your effort!Markus

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 19, 2018, 08:09:42 am
content: In addition to this BW picture, it would be ofinterest if someone could measure the inputimpedance of the scope channels whenterminated (internally) with 50Ohm up to150% of the BW - let say to 500MHz.The theoretical BW according to Nyquistwith 2Gs/sec is 1000MHz. Taking thedrop of a aliasing filter 600 to 700 MHzin BW should be possible.The AD83700 is specified -3dB@750MHz.I compare this with the Lecroy modelswith 2Gs compatible with the SDS230xXthat are specified up to 400++MHz.Markus

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 19, 2018, 01:19:46 pm
content: FYI,I have made the effort and check the reflection on ch1 to ch4om my SDS2204X model. Looks not very good according to myopinion. 10dB reflection from 50 Ohm terminated port/channelmeans (>3% voltage err or 10% power error) error in maesurement- right?I had check the spawn from 0 to 1000MHz.At the point of 100mV/div coming from the top (10,5,2,1,0.5,0.2V)the reflection change due to internal switching of components.All pictures show 50 Ohm terminated channels beside one thatI measure with 50 Ohm disabled (1Meg).So I present screenshots of my measuring device as well as swrbridge and cabling and the dso screenshots.Waiting for your comments.MarkusSorry pic. #7 should be labeled with CH3 and not CH1.

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 19, 2018, 04:54:02 pm
content: To compare with a proper input channel impedance,I check a old Hameg 350 MHz DSO.See the difference in the attached pictures comparedwith the Siglent scope.But also notice the decrease of impedance match,when switching to 50mV and lower amplification.Would be interesting to figure out how the SDS2KX inputimpedance could be improved.Markus

author: KeBeNe
author_rank: Regular Contributor
timestamp: August 19, 2018, 05:42:27 pm
content: Here are the measurements of my 2104xpart 1:

author: KeBeNe
author_rank: Regular Contributor
timestamp: August 19, 2018, 05:50:26 pm
content: part 2:

author: tv84
author_rank: Super Contributor
timestamp: August 21, 2018, 10:03:40 pm
content: Since the 300 MHz HW patch has proven to be successfull (with light differences between different PCB boards) on a SDS2104X and a SDS2204X, the only thing missing was my contribution.Attached is the latest FW version (SDS2000x_1.2.2.2R10) patched to fully behave as a 300 MHz scope (the official Siglent SDS2304X/SDS2302X). It's a 1-byte patch.The .ADS file is zipped and splitted in 3 parts (.ZIP + .Z01 + .Z02). Place them in the same dir and extract.The CRC32 of the .ADS must be 0x5AD47123.The file has been tested in a SDS2204X and should work on all scopes that accept the official Siglent v1.2.2.2R10 FW (with CRC32 = 0xFBD42874). It's a simple runtime patch. If someone wants to test a permanent patch pelase contact me.Edit: New file released Sep 25th.

author: KeBeNe
author_rank: Regular Contributor
timestamp: August 22, 2018, 04:35:02 am
content: Hello,how do I unpack the files correctly, get errors with 7zip

author: oewean
author_rank: Contributor
timestamp: August 22, 2018, 07:30:58 am
content: Rename / remove .zip from filename for the 2 last files(z01 and z02)SDS2000x_1.2.2.2R10_300MHz.z01.zip -> SDS2000x_1.2.2.2R10_300MHz.z01SDS2000x_1.2.2.2R10_300MHz.z02.zip -> SDS2000x_1.2.2.2R10_300MHz.z02BTW: As an distributor for Siglent I must warn about loss of warranty and the risk of destroying your scope....

author: markus_jlrb
author_rank: Regular Contributor
timestamp: August 22, 2018, 12:18:41 pm
content: @oeweanthe counterpart in "risk of destroying" is "quite a great chance to improve" the device.But in general it's a good thing to know what someone is doing and not trust blind afw binary without having a) the knowledge or b) the feedback of a huge amount ofpeople which can canfirm that the modified firmware is working properly.Just my opinion.You know "no risk no fun as well as no sorrow"Markus

author: KeBeNe
author_rank: Regular Contributor
timestamp: August 22, 2018, 06:44:32 pm
content: patch worked without problems here

author: sn4k3
author_rank: Frequent Contributor
timestamp: August 22, 2018, 08:05:34 pm
content: Any hardware modification required on SDS2104 or SDS2204? or just flash the firmware?Can i also ask if SDS2204 have much more benefit compared with SDS1204? (stock)

author: tautech
author_rank: Super Contributor
timestamp: August 22, 2018, 08:35:02 pm
content: Quote from: sn4k3 on August 22, 2018, 08:05:34 pmMain feature differences....maybe some missed.SDS2kX series vs SDS1004X-E series5x total memory (140 vs 28)2x sampling rate50 ohm inputsProbe senseInbuilt AWGTrig IN/OUT rear BNC8" displayMuch better MSO HWPASSDS1004X-EMore powerful processorFree DecodeSmall form factorFast FFTWebserver and WiFi capableUpdated UI .......that could be added to SDS2kX if Siglent wants to.500uV/div @ full BW (no auto 20 MHz filter)Bode plot capable.....needs ext AWG or option module.

author: sn4k3
author_rank: Frequent Contributor
timestamp: August 22, 2018, 08:57:25 pm
content: Quote from: tautech on August 22, 2018, 08:35:02 pmNow i have mixed fellingsI was more inclined to SDS2kX, it have each chanel knobs instead have to switch and share same knob, larger, more memory, looks better and the other features that i like, but at 2x the cost of SDS1kX...From other side the SDS1kX is cheaper, newer, faster-cpu? Decoder, better UI maybe and all that for half the price.

author: tv84
author_rank: Super Contributor
timestamp: August 22, 2018, 09:04:46 pm
content: Quote from: oewean on August 22, 2018, 07:30:58 amOf course, I respect and thank the warning. Although it was more appropriate when people went for the HW patch.For my part, a stock FW reflash and the device regains warranty.

author: tv84
author_rank: Super Contributor
timestamp: August 22, 2018, 09:07:58 pm
content: Quote from: KeBeNe on August 22, 2018, 06:44:32 pmDid you observe any improvement regarding your previous measurements (before FW patch)?

author: tautech
author_rank: Super Contributor
timestamp: August 22, 2018, 09:28:25 pm
content: Quote from: sn4k3 on August 22, 2018, 08:57:25 pmI've had 2304 and later 2304X since 2013. I like X-E but for an everyday bench unit.......SDS2000X series.It's not a cheap entry level DSO so priced accordingly.Only the 300 MHz model comes with 300 MHz 10x only auto-sense probes and they are a very nice probe.....specify them if you buy a 2kX.I know....the $, but the perfect scope has not been built yet.The multiplexed channel controls are not something to be scared of and usage of them is adapted to quite quickly.For the UI, the great advantage is the channel tab indication of input attenuation settings. Siglent need to add this to all their current DSO models with the modern V2 UI.

author: tv84
author_rank: Super Contributor
timestamp: August 22, 2018, 09:41:07 pm
content: Quote from: tautech on August 22, 2018, 09:28:25 pmtautech,If I understand it correctly, you still prefer the SDS X instead of a X-E, since you already owned it.What is the thing that you most miss about the X-E in your day-to-day?And what is the thing (that the X-E doesn't have) that you most use in your day-to-day?

author: tautech
author_rank: Super Contributor
timestamp: August 22, 2018, 10:09:57 pm
content: Quote from: tv84 on August 22, 2018, 09:41:07 pmTo be clear I own both 2kX and 1kX-E plus other demo models as well.It matters to some if it is a everyday DSO or hobbyist usage. X-E is a very capable DSO, more so than most at this price point.For me, Channel tab indication is great but my opinion needs to be balanced against probe auto sense of 2kX.8" display, hell yeah ! More important as we age.Multiplexed vs individual vertical controls....don't care so much now I'm used to 4ch X-E's even though I dreaded using them. They are not so bad, even for an old fella like me used to individual controls.Otherwise the two UI's and usage is very very similar, one has features the other doesn't and vice versa.The physical UI of 2kX is nicer and knobs not some smooth cheap plastic.X-E do Bode plot but a simple one can be done with 2kX and inbuilt AWG but without phase info measurement.Dave's Bode plot vid shows how.If I had to make the choice, 2kX.............but I would be happy with either. What one can't do as well as the other, well I'm fortunate to have other equipment that can make up for that.

author: KeBeNe
author_rank: Regular Contributor
timestamp: August 23, 2018, 04:13:58 am
content: Quote from: tv84 on August 22, 2018, 09:07:58 pmHello,no, it has not changed in terms of bandwidth, just the name.Here a FFT plot from 0Mhz to 1Ghz, RF source sweep 100khz to 1Ghz, level -10dbm, Scope 50ohm Input channel 1, FFT 4096points + max. hold

author: tv84
author_rank: Super Contributor
timestamp: September 25, 2018, 11:04:06 am
content: Attached is the latest FW version (SDS2000x_1.2.2.2R15) patched to fully behave as a 300 MHz scope (the official Siglent SDS2304X/SDS2302X). It's a 1-byte patch.The .ADS file is RARed+ZIPped in 3 parts. Place them in the same dir and double-extract.People should previously do the HW hack.

author: tv84
author_rank: Super Contributor
timestamp: September 25, 2018, 11:04:42 am
content: 3rd an last part

author: swperk
author_rank: Regular Contributor
timestamp: October 08, 2018, 10:11:06 pm
content: Thanks for all your hard work on this patch! I tried it on my SDS2204X scope, but after it installed I could not get any traces to display on the screen. All of the buttons worked, menus came up, it reported itself to be an SDS2304X, but alas, no traces. I reinstalled the original 1.2.2.2 firmware and it's back to being its old self. Any ideas?Regards,Stan

author: tv84
author_rank: Super Contributor
timestamp: October 09, 2018, 08:38:14 am
content: Quote from: swperk on October 08, 2018, 10:11:06 pmHave you done the HW patch (caps removal)?

author: swperk
author_rank: Regular Contributor
timestamp: October 10, 2018, 03:27:42 pm
content: No, I haven’t removed the caps yet. I planned to do just that once I verified that the patch worked. Unfortunately, not only did the patch make all the channel traces disappear, it also did not enable the power analysis option (the only option on my scope that wasn’t already installed). So I will be waiting until I can figure out how to get the patch working to make the hardware modifications.

author: tv84
author_rank: Super Contributor
timestamp: October 10, 2018, 08:02:30 pm
content: Quote from: swperk on October 10, 2018, 03:27:42 pmThe patch worked perfectly!!Quote from: swperk on October 08, 2018, 10:11:06 pmIt's not supposed to activate any Options and it's not supposed to make the channel traces work at 300MHz with the caps on!Did you even bother to read this?Quote from: tv84 on September 25, 2018, 11:04:06 am

author: swperk
author_rank: Regular Contributor
timestamp: October 11, 2018, 01:47:32 am
content: I had been reading several threads other than this one about enabling the SDS2000X power analysis option, and mistakenly attributed that feature to your patch. For that I apologize.In any event, as I mentioned in my original comment, installing the patch made the scope unusable in that no traces were displayed. Fortunately, I was able to reinstall the original firmware and restore everything back to the way it was.I understand that it is necessary to modify the hardware (caps) to get the full bandwidth, but is it also necessary to remove the caps just to get the traces to display? I wouldn't expect that to be the case.

author: tv84
author_rank: Super Contributor
timestamp: October 11, 2018, 10:41:21 am
content: No, you don't need the SW patch for the SDS to work as a 300MHz unit.You just need the HW patch.What you saw is probably the result ofapplying the SW patch without the HW patch. No one had done that before.So I think you could do the HW patch only, as several guys reported success. The SW patch is somewhat aesthetic.Well, with your test, we confirm that it's not so aesthetic as one might imagine. So it was an involuntary step in the evolution path!

author: swperk
author_rank: Regular Contributor
timestamp: October 12, 2018, 01:30:39 am
content: Okay, thanks for the clarification! Anyway, without doing any hardware mods my SDS2204X has a -3 dB bandwidth of about 320 MHz. Maybe I'll just leave well enough alone!Regards,Stan

author: markus_jlrb
author_rank: Regular Contributor
timestamp: October 12, 2018, 08:57:26 am
content: @Stan,have you measured your max-BW with 50 Ohm termination?Markus

author: swperk
author_rank: Regular Contributor
timestamp: October 14, 2018, 10:34:24 pm
content: Yes, the 320 MHz -3 dB bandwidth I measured was with a 50 ohm termination.

author: timber23
author_rank: Contributor
timestamp: February 18, 2019, 04:05:26 pm
content: Hi,I want to optain a memdump. Therefore I used EasyScopeX to send the SCPI command "SHELLCMD telnetd -l/bin/sh -p10101". But nothing happens. I try to use PuTTy to telnet into the SDS2104X but telnet doesn't work.Do you have any suggestions how to do it? The scope has version 1.2.2.2 R15Best regardsAndreas

author: tv84
author_rank: Super Contributor
timestamp: February 18, 2019, 04:38:13 pm
content: SDS X is a Blackfin machine. No ARM and no linux OS.No telnet is possible.

author: timber23
author_rank: Contributor
timestamp: February 18, 2019, 05:10:48 pm
content: Okay. If no telnet is possible, how to obtain the memdump? I found the SCDP C# program, which was posted in September 2018, but I don't know which SCPI commands are required for reading the memory.Any hint where to start?Thank youBest regardsAndreas

author: tv84
author_rank: Super Contributor
timestamp: February 18, 2019, 06:26:53 pm
content: There are no SCPI commands to "read memory". If you need it, you'll have to craft your own command to do it.Another possibility might be the JTAG access.

author: timber23
author_rank: Contributor
timestamp: February 18, 2019, 11:18:42 pm
content: I see. Since I have no clue about SCPI programming, I will not further investigate.But I managed to perform the BW hack. The mainboard of my scope has minor differences, but after removing the four caps, it seems that I can measure up to 300 MHz. I do not have a signal generator which is capable of providing such a high frequency. Hence I used my SSA 3021X TG and set the output to 0 dBm. For low frequencys the scope measures 1 Vpp. At 300 MHz configured at TG it still has a reliable reading of 300 MHz and 0.9 Vpp. I tried to increase the frequency, but it becomes unreliable beyond 320 MHz. At 400 MHz Nyquist comes in and the scope shows 332 MHz...For those who are interested in photos, I attached some here.Thanks to everybody who contributed to the BW hack and the modified FW.Best regardsAndreas

author: eddiea6987
author_rank: Contributor
timestamp: April 05, 2019, 01:00:38 am
content: Hey guys, this thread starts with the options patch already done, anyone have a link to the thread discussing that?

author: jemangedeslolos
author_rank: Frequent Contributor
timestamp: April 16, 2019, 06:26:40 pm
content: Hello,I have a SDS2204X. It will be nice to have more BWI download the last mod firmware from tv84, thanks a lot.But on reply #10 there is a HW mod ( removing 4 caps ).My scope is still under waranty so I didn't opened it wet.I don't understand if all the SDS2000X series had those caps ?Thank you for your help

author: TheDefpom
author_rank: Frequent Contributor
timestamp: April 30, 2019, 05:37:33 pm
content: Hi all,Thanks a lot for this information, I did a video showing how to do this on an SDS2102 model, it looks a lot like the pictures I have seen in this thread too.#554 Hacking The Siglent SDS2102 to 345MHz ! - How To Increase Oscilloscope Bandwidthhttps://youtu.be/kGHjtlQp6fw

author: XBurst
author_rank: Newbie
timestamp: September 05, 2019, 03:26:46 pm
content: Hello,Thanks for all your hard work on this patch! I have aSDS2304X-E. This is the educational version of SDS2304X,the difference is that the storage depth is reduced from140Mpts to 70Mpts. I download the last mod firmware andupgrade successfully. But the options licensing are stilltrial version. Any ideas?Best regards!

author: Tighermine83
author_rank: Newbie
timestamp: August 04, 2020, 05:19:46 pm
content: Hello people.I am interesting in buying Siglent 2000X 100Mhz in order to upgrade it to 350Mhz min. I dont't if it can be "HACKED"? if so, is it a hardware MODs or software?many thanks.Regards

author: tautech
author_rank: Super Contributor
timestamp: August 04, 2020, 08:33:18 pm
content: Quote from: Tighermine83 on August 04, 2020, 05:19:46 pmWelcome to the forum.The now few years old SDS2000X models max'ed out at 300 MHz and while a nice DSO in their time the new SDS2000X Plus models are in another league and offer BW to 350 MHz with an additional 2 channel option to 500 MHz. They are where I recommend you focus your efforts.

author: Tighermine83
author_rank: Newbie
timestamp: August 04, 2020, 10:40:07 pm
content: Hello tautech,Yes it's what I am looking for SDS2000X Plus model. I've just read that there is a hack to upgrade the bandwidth but people don't tell how to do it. Is it like by removing some components? or a software MODs. Please can you give more details of how to do it.350 Mhz upgrade will be enough for what I am designing.Many thanks for your help.Regards.

author: tautech
author_rank: Super Contributor
timestamp: August 04, 2020, 10:58:02 pm
content: Quote from: Tighermine83 on August 04, 2020, 10:40:07 pmRight now the thread you are looking for is on P5 of the Test Equipment board.

author: hitwzy
author_rank: Newbie
timestamp: August 27, 2020, 10:54:06 pm
content: Is there a way to unlock the SDS2104X 's options without hardware modification as BW is not an issue for my application?Thanks

author: atum
author_rank: Newbie
timestamp: January 02, 2021, 03:18:07 pm
content: UPDear everyone ,I'm still interested to crack AWG option on SDS2304XI also made custom hardware to use digital channels, but i'm actually using trial options ...Does anybody tried to open the scope and remove RTC battery ? if trials counters for option are not stored in eeprom, it possibly reset it ?Does anybody did it ? i can't find any information / license key generator for those units.thank's for help !Atum

author: Kevin Liu
author_rank: Contributor
timestamp: April 24, 2021, 08:53:25 pm
content: Does there any FW SDS2000X_1.2.2.2R19 300MHz mods?Thanks.

author: Kevin Liu
author_rank: Contributor
timestamp: April 24, 2021, 09:19:51 pm
content: Hi tv84,Would you please patch the last firmware SDS2000X_1.2.2.2R19 300MHz mods?Thank you.

author: ndispatcher
author_rank: Newbie
timestamp: January 08, 2024, 02:28:59 am
content: Quote from: atum on January 02, 2021, 03:18:07 pmHello, Atum.Du you have any progress in AWG option for SDS2000X ?Thank you.

author: TruongNguyen
author_rank: Newbie
timestamp: «Reply #91 on:Todayat 04:58:42 am »
content: Hello,Sorry to bother you. Do you happen to know any way to activate the options for the SDS2000X (non-Plus) series? I've searched through forums and various sources, but so far haven't found a working solution.I purchased this unit second-hand from China, and none of the options have been activated. I really need them and would greatly appreciate any help or guidance you could offer.Thank you!