Dear all,
I just purchased a second hand Hameg HM203-4 Oscilloscope on Ebay.
When I received it I connected it to my function generator to test it measuring different wave types.
It seems to measure correctly most of the wave forms but something doesn't seem right, see the following images:
Please note that it's like 'dots' forming the signal instead of a continuous line, you can especially appreciate this on the sine and saw waves. On the other hand, on the square wave, the vertical lines are faded - they aren't as bright as the horizontal lines.
So is this normal for an analog oscilloscope? If not, why could this be happening?
All serious answers are very much appreciated.
Thanks a lot!
I just purchased a second hand Hameg HM203-4 Oscilloscope on Ebay.
When I received it I connected it to my function generator to test it measuring different wave types.
It seems to measure correctly most of the wave forms but something doesn't seem right, see the following images:
Please note that it's like 'dots' forming the signal instead of a continuous line, you can especially appreciate this on the sine and saw waves. On the other hand, on the square wave, the vertical lines are faded - they aren't as bright as the horizontal lines.
So is this normal for an analog oscilloscope? If not, why could this be happening?
All serious answers are very much appreciated.
Thanks a lot!