SDS800X HD issues and tips - Page 1
Forum section: electronics / general

author: eTobey
author_rank: Super Contributor
timestamp: April 26, 2024, 06:47:55 am
content: I just want to post my top list about the bugs/issues i found. I do this in this section, because certain individuals (mostly fanboys) will probably be offended or create a lot of "noise", if i post this in the other section.I try to keep this, the links, and the linked posts updated.Anyone is welcometo send me a message if one wants to add things to the list OR to confirm issues and send them to Siglent, if those are of particular importance.New, or updated issues are at the end of each list.Issues / bugs:Ghost traces:(They do trigger the mask test!)https://www.eevblog.com/forum/testgear/sds800-x-hd-persistence-mask-test-issue/msg5762649/#msg5762649Cursor measures screenborder(Still exists in 1.1.6.5)https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5766285/#msg5766285Moving gate A, changes gate B unintentionally.(Still exists in 1.1.6.5)https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5523604/#msg5523604Changing sample rate changes timebase:(Still exists in 1.1.6.5)Decreasing sample rate (fixed setting) changes timebase, but does not set the timebase back to the initial value, after setting the sample rate to its initial setting.(1us/div goes up to 500ms/div, but only back to 5ms/div, after the sample rate has been set back to its previous value)Persistence traces dissappear when selecting only a channel to display its scale:(Still exists in 1.1.6.5)https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5760405/#msg5760405Measurement measures wrong edge:https://www.eevblog.com/forum/testgear/sds800x-hd-featureimprovment-disscusions/msg5470300/#msg5470300Measurement on less points than acquired (presumably), is not indicated.https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5527156/#msg5527156Trigger rate decreases significantly when sample rate is decreased.(Still exists in 1.1.6.5)ALSO in sequence mode!https://www.eevblog.com/forum/testgear/why-is-the-trigger-rate-of-my-scope-(sds814x-hd)-changing-in-an-unexpected-way/msg5659165/#msg5659165Mask test save issue(Still exists in 1.1.6.5)It has internal memory, and LAN, but mask test will only write to a USB diskColor of math channels changes(Still exists in 1.1.6.5)https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5744691/#msg5744691https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5770627/#msg5770627Last too pictures:https://www.eevblog.com/forum/beginners/measuring-the-same-signal-in-different-ways-result-in-different-waveforms/msg5755633/#msg5755633Color changes on multiple timebase settings. Its a complete mess.Workaround:https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5747345/#msg5747345Math average lost(Still exists in 1.1.6.5)Math average is lost when changing timeposition (Yes, even in stop mode)https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5750033/#msg5750033Mask messCreating a mask scales and moves trace vertically / Introduces errors in the scope that may require a reboot (scales messed up)https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5651161/#msg5651161https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5674527/#msg5674527Trigger level indicator wrong in zoom modehttps://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5469121/#msg5469121Vertical grid not aligned(fixed)https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5527363/#msg5527363https://youtu.be/ITbbYUFg6CUHistory time wrong(fixed)https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5660701/#msg5660701Missleading accuracy of measurements (measure mode)Digits of ns are shown, when accuracy is only +- 1us for example (not necessarily the case). (In stop mode it should measure all samples without reducing?)Decode wrong data on low scalehttps://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5742393/#msg5742393Selecting math channel sometimes doesnt workAlthough the click noise can be heard, and the mouse pointer is moved onto the button.Save button setting(Still exists in 1.1.6.5)"Save to" setting for the "save button" is overwritten when saving some different values/waveforms/... with using the menu. ALSO: normal save menu setting (not for button) is overwritten by the save type of the button.SCPI command clears scopeWhen retrieving data with :WAVeform:DATA?, the captured traces dissappears from the screen.No fixed offset zooming on math channel aka non consitent settingshttps://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5762331/#msg5762331Decoding hiddenWhen there are only very view decode items, the list hides them, when the timebase was moved and there were more entries in the list before. ("two issues decode list.jpg")Artefacst from SCPI usageTrace artefacts appear, when SCPI is used. ("Artefacts when using SCPI.png")Cursor measurment messed up after use with automated measurementsCurser value „nans“ after having used curser on measurement ("SDS824X_HD_PNG_218.png")Scope crash on SCPI useWhen using SCPI command on non activated features, the scope will crash.Webinterface does not show disconnection from scope (does disconnect for unknown reason and without attempt to reconnect)The webinterface just shows the last screenshot, and is thus missleading, as if a test is still working for example.File letter case issuehttps://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5818727/#msg5818727Sorting issue (its a mess):See last part of the following post, especially, if your native language is not german or english:https://www.eevblog.com/forum/testgear/how-common-is-this-sorting-order-in-scopes-and-linux/msg5819217/#msg5819217- Screenshots have bad filename format, so "PNG_99" will always be the last one, even if there is a "PNG_500".- "B" comesbefore"a" (notice the case) (See "Sorting issue 1.png")- (if NTP sync fails, files have the wrong date, therefore you cant sort filenames for their date then)https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5813477/#msg5813477Search event navigation issue (slow and omitting events)https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5820229/#msg5820229Taking a screenshot clears the screen while using rollmode(Still exists in 1.1.6.5)Position of decode list is lost (1.1.6.2)A set up postion, for example packet 84 (wich is tedious without a mouse) is lost for unknown reason. Probably because there were no packets read, or more read than before.Histogram hard to read (1.1.6.2)Values from 4.9753 to 4.9943 in combination with an unknown scale makes it difficult to judge the numbers in between.Rollmode not reliable(Still exists in 1.1.6.5)Screen gets cleared randomly for unknown reason. In single mode the acquire stops at some time (screen content stays though).General tips and workarounds:Fine adjust for math channels:It can NOT be set with the knob, but it CAN be set via the menu.Saving lot of things? Beware of the save button!https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5776675/#msg5776675Stop drops capture and measurement fails workaround:https://www.eevblog.com/forum/testgear/sds800x-hd-bug-reports-firmware/msg5783215/#msg5783215Overlaying labels issue:It can be somewhat overcome, by setting offsets, and then realign the trace vertically. In case you want to compare: all have to be the same scale, and the one without offset has to be activated in order to show the proper vertical scale (for all channels). One has to keep that always in mind, or otherwise one would be misslead.(See picture attached "Labels with offset")Mask test mess (its buggy, and the following tips may not work, or still have quirks):- when manually creating a mask, and loading it, it may likely create errors, that will persist, and affect the trigger or level of traces. Its a good idea to restart the scope after using the mask test.- Starting the mask test (only works in this particular order): Enable "operation", and then start run mode, or stop and start run mode.- Moving the vertical or horizontal position will prevent any further detectiong of fail events (at least with a manual mask). Restart as above is needed.Virtual feature scripts for SDS800X HD (and probably other scopes):https://www.eevblog.com/forum/testgear/scpi-virtual-feature-fixed-measurement-gates-siglent-sds800x-hd-and-the-like/Siglent SDS802X, SDS804X, SDS812X, SDS814X, SDS822X, SDS824X, Hack, 12-bit, Scope, oscilloscope, SDS 800 X HD

author: exe
author_rank: Unknown
timestamp: May 14, 2024, 12:04:28 pm
content: checking forum attachments

author: tyeth
author_rank: Newbie
timestamp: April 23, 2025, 11:46:40 am
content: Hey, thanks for compiling this list.Is there any chance these can be verified against different firmware versions, i.e. we can track which have been resolved and also which FW is needed for the fix (or at least "should be fixed in latest")?Not an easy or instant thing, and maybe there is a better place for it, but this was where I stumbled upon first...