Hantek DSO5202BM: I discovered a bug in the operating mode with two windows.

Oleg10011001

Look at the screenshot on the waveform in the bottom window:

amy

Sir, as shown in your picture, the timebase is 80us, there is only two points in minor window. So there is only a straight line between two points.
You can use dots type to view.

Oleg10011001

Then it must be one of two things:
1) The ends of the waveform is present on the screen should be stationed at the edges of the working area of the screen to waveform always occupied the whole working area of the screen horizontally;
2) The ends of the waveform is present on the screen must be connected with its neighboring points, which, although they are not within the working area of the screen, but still a direct line to him to pave the can, which partly can be shown on the screen to waveform occupied the entire work area screen horizontally...

However, it would be best to do to lower the screen presented himself not like a magnifying glass, and contained basic waveform, but the upper window could be done as if the diminutive glass, which could be a whole to examine the entire waveform stored in the memory there would have mattered how much memory you have oscilloscope ... I think it would be much better!

amy

This drawing mode is defined as this. Connect the dots in the working area of the screen to generate the waveform.
You can change the timebase to display more points to get the waveform to occupy the entire area of the screen.