Another really annoying issue I found today.
If you set adquisition in average mode (ex. to clean up the signal), when you save the picture it will save the last, non-filtered snapshot!
Damn you Hantek!
Edit: It turns out it was the avg is resetted inmediately after saving, but the picture is ok.
But if you push stop, then yes, it will be resetted!
michal, the wave issue is because you're breaking nyquist (sampled signal frequency/ adcs ample rate), and hantek does pretty much nothing to filter it.
You can see that with the wavegen...ex 1KHz, it will look ok at 200uS/div, but if you go back to 10...100mS range, it will show a completely different signal.