Threads often drift to and from topic, but you right to try and keep the DSO2x thread alive.
My Banggood return request is stuck at "Solution under comfirming" at 28.8 days used up of 30 days.
Hence i look the hantek site everyday for a new stable software release as potentially great little scope for the monies.
But as mentioned these dozen lockups a day are its nemesis for me :-(
Good luck with you software rebuild imk
If you paid through Paypal, you can invoke the buyer protection by starting a dispute. For my Banggood purchase, taking that action does not expire until November. Record all communication with Banggood and the seller (if they ever respond) in order to document it with Paypal. If you e-mailed Hantek support before invoking the Banggood return, include that too with dates, even if Hantek did not respond. It builds an irrefutable case with Paypal that shows that you, as the consumer, have acted reasonably.
I sincerely hope this thread can go back to a discussion of the Hantek DSO2X1X models, or perhaps I should start another thread?
If you know anything about electronics manufacturing, then you know that comparing a $200 entry-level Hantek DSO to one from any other brand costing twice as much is totally meaningless ("comparing apples to oranges").
Another thing some people seem to have fixated upon is the fact that the little 32-bit ARM SOC inside these Hantek DSOs does not have hardware floating point: it's an ARM926EJ-S without a hardware floating point coprocessor. But the fact is that for processing and displaying 8-bit integer data samples, there is simply no need for floating point code. And for the occasional FFT, the Linux kernel-provided floating point emulator is more than adequate performance-wise. The advantage of this lower performance ARM SOC is its low power dissipation, so there is no need for a fan in these Hantek DSOs.
Now, as far as I can tell, there is a lot of room for improving the firmware in these little scopes*, and I sincerely hope Hantek gets its act together on delivering significant firmware upgrades ASAP - which I hope we can continue to discuss here in this thread. Providing effective feedback on firmware issues to Hantek can only help them and accelerate the firmware revision process, but I don't see how all the whining and bitching can have any positive outcome.
I agree. The Siglent scopes use components that add significantly more BOM cost than the Hantek and it is unfair to compare the two. But it is useful for anyone considering purchasing the Hantek to go in "eyes open" to what they are getting, which can only be achieved by examining its shortcomings.
For the money, what it offers is a remarkable amount of technology, it seems to come with an "OK" front end and well laid-out application user interface. Things like resolving crashes, DC offsets, scaling issues from calibration, some trigger filtering can potentially be fixed with updates. Whether the noise level is tolerable comes down to what each user's expectations are, and how they intend to use it. I still stand by my statement that it's a useful bit of kit - just not for what I need.
As for the cooling arrangement, it does get warm but the case slots top and bottom indicate that the design was intended for passive convection cooling. Perhaps with an added fan overclocking the SoC and memory without shortening lifespan/crashing becomes an option for the hardcore Hantek hacker. I also agree that the SoC is about what I'd expect given the price range.
My Siglent has arrived and first impressions are OK. I actually prefer the button layout on the Hantek and elements of the Hantek UI (from a background of using many different scopes, that's saying a lot). On the Siglent the knobs feel less substantial and "wobble" - the Hantek knobs are more solidly connected to the scope. The buttons on the Hantek have a decent "clunk" when you depress them - the Siglent is like pressing foam with little feedback (when the key beep is off) to know that you've pressed it hard enough.
Noise and signal quality I have yet to assess (one for this evening) but first impressions are favourable. I can still see some 100MHz pulses and trigger on them, the signal looks better. But that might be an implementation detail in how the Siglent decimates the capture buffer for display vs the Hantek. It could be the Hantek SoC does simpler decimation due to more limited processing, and that just looks worse. I will do a more thorough assessment later.
Fan noise is a quiet murmur that is only noticeable when listening for it. Not a patch on my programmable PSU that lets you know when it's cooling.
So it's not all rainbows and sunshine in Siglent vs Hantek land, but it's early days for comparison yet.
Edit: oh yes and my cat loves the Siglent box too. Must be something about the shape that's optimised for cat brains.