I bought two DSO nanos, one for me and one for my friend. Both two DSO nano with x1 probe shows following image when I connect probe to signal output of DSO nano:
DSO nano showed following image when I change to x10 mode with the same probe and signal:
The picture below is the wave observed when I connect x1 probe to 1V p-p output of another oscilloscope.
Are these image expected ones? Or something is wrong?