6. If noise is applied to the first channel and a square wave is applied to the second channel, it is affected by the noise, and the waveform with noise is also seen in the second channel. (noise.jpg).
When I connect another oscilloscope to the second channel, there is no noise.
The question of the noise signal having an effect on the second channel has been solved.
The reason is that I wrapped the two probes together.
But still, the glitch question cannot be resolved.
Through several operational tests, I was able to eliminate glitches occurring in a specific time device (a specific frequency band).
Interestingly, I found this method to be removed as a simple operation method, not any hardware replacement or firmware modification.
This method is based on when I try to remove the 25ns glitch,
First, set it to 1us or larger and run autoset. Next, set it to 10ns and run autoset again.
After two or three repetitions, the 25ns glitch disappears and I can see a normal waveform.
Eventually, the standing waveform is output like the attached file.
Of course, I don't think this is the correct solution.
And it is very frustrating that the waveform does not get caught in one autoset.