Products > Test Equipment
Still Siglent SDG2042X over SDG1032X after new added features (TrueArb, etc)?
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FPdesign:
the mentioned syncing issue, is that with all Siglent AWGs or just the SDG2000X and SDG6000X?


@nctnico
what other bugs are at the moment still an issue with the SDG2000X?
TurboTom:
Though I'm not @nctnico  ;), I dare to add my 2ct here: I guess most of the issues that I listed here are also still valid for the SDG2kX. Depending on your prefered usage model, they may or may not be relevant to you. I also might not call them "genuine bugs" but at least for me, they are serious shortcomings that are solved much better on other manufacturer's gear.

You can work around them, no question, but I wonder why Siglent won't address them, especially since the first hints regarding these are more than three years old... @hpw's yesterday's contribution may explain a lot regarding the reasons for that and puts quite some shadow on Siglent's attitude towards such problems and as a trustworthy test gear manufacturer in general. Hopefully only their generator branch is affected...  :-//

One issue that you cannot work around if a problem arises is the lack of auxiliary inputs. There is a single BNC that can be configured as modulation input, sync / trigger input / output and what not for both channels of the instrument. It's been Siglent's design choice to have it that way and add (imo) a mostly useless half-baked frequency counter while the BNC real estate for that add-on would have been much more reasonably used for a second aux input.
nctnico:

--- Quote from: FPdesign on June 01, 2022, 02:30:23 am ---the mentioned syncing issue, is that with all Siglent AWGs or just the SDG2000X and SDG6000X?


@nctnico
what other bugs are at the moment still an issue with the SDG2000X?

--- End quote ---
I don't know and nobody knows what else is lingering. Initially I choose the SDG2kX because it comes highly recommended on the forum and since it was out for many years already I assumed all the bugs got ironed out. That assumption turned out to be a mistake. Siglent just lacks the knowledge and firmware development & testing abilities to create a rock solid product. In the end I bought a much more expensive generator from Tektronix which does the job well.
2N3055:

--- Quote from: nctnico on June 01, 2022, 08:36:57 am ---
--- Quote from: FPdesign on June 01, 2022, 02:30:23 am ---the mentioned syncing issue, is that with all Siglent AWGs or just the SDG2000X and SDG6000X?


@nctnico
what other bugs are at the moment still an issue with the SDG2000X?

--- End quote ---
I don't know and nobody knows what else is lingering. Initially I choose the SDG2kX because it comes highly recommended on the forum and since it was out for many years already I assumed all the bugs got ironed out. That assumption turned out to be a mistake. Siglent just lacks the knowledge and firmware development & testing abilities to create a rock solid product. In the end I bought a much more expensive generator from Tektronix which does the job well.

--- End quote ---

By that same token there must horror of bugs hiding in that Tek AWG of yours too.. You didn't test everything, did you....??

With all due respect, you have no clue what Siglent's capabilities are.... They are not perfect (nobody is), but you're just disrespectful to people that are making dozens of products that are each orders of magnitude more complex than anything you probably ever did... 
Let's keep it civil here, please...

There are two separate issues here being discussed: a slow drift of frequency when FM modulation is engaged on square-waves.
Drift is very slow and not seen always and not on all waveforms and combinations of settings.

HPW in his endearing way discusses other: if you FM modulate square-wave signal by 0.1 ppm modulation it will stop modulating after some time...
That is corner case and also happens only with some combinations of settings.

There is no issue with synch to external 10MHz ref signal that I know of on 6000 series. There was an issue few FW levels down on some models that it would revert automatically to internal clock if external clock had a even a slightest dropout. As far as I know that is fixed, at least on 6000X.

And, just for all of your info, no, 7000A doesn't have any of mentioned problems...
nctnico:

--- Quote from: 2N3055 on June 01, 2022, 10:12:09 am ---
--- Quote from: nctnico on June 01, 2022, 08:36:57 am ---
--- Quote from: FPdesign on June 01, 2022, 02:30:23 am ---the mentioned syncing issue, is that with all Siglent AWGs or just the SDG2000X and SDG6000X?


@nctnico
what other bugs are at the moment still an issue with the SDG2000X?

--- End quote ---
I don't know and nobody knows what else is lingering. Initially I choose the SDG2kX because it comes highly recommended on the forum and since it was out for many years already I assumed all the bugs got ironed out. That assumption turned out to be a mistake. Siglent just lacks the knowledge and firmware development & testing abilities to create a rock solid product. In the end I bought a much more expensive generator from Tektronix which does the job well.

--- End quote ---

By that same token there must horror of bugs hiding in that Tek AWG of yours too.. You didn't test everything, did you....??

--- End quote ---
I don't have to. Tektronix has decades of experience designing high-end digital waveform generators. It is all about pedigree. Tektronix knows exactly how to build & test such devices. That also translates into having a full set of specifications in the datasheet. In the end you get what you pay for. Fool me once, shame on you; fool me twice, shame on me. I've learned my lesson.
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