Does Adjusting Oscilloscope Controls Alter the Input Signal?

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Manipulating the controls of an oscilloscope does not alter the characteristics of the input signal being evaluated. The oscilloscope functions by displaying the effects of the input signal on the electron beam within its cathode ray tube. The varying electrical charges from the input signal are responsible for the trace seen on the screen. Adjustments made to the oscilloscope controls only affect the display settings, such as scale and position, without modifying the actual signal. Therefore, the input signal remains unchanged regardless of the oscilloscope's settings.
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Does manipulating the controls of an oscilloscope change the characteristics of the input signal being evaluated?

Can someone please explain this to me?

Thank you.
 
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Skye77 said:
Does manipulating the controls of an oscilloscope change the characteristics of the input signal being evaluated?

Can someone please explain this to me?

Thank you.
An oscilloscope is a tool for examining the signal. The electron beam in the oscilloscope's cathode ray tube is deflected by the varying electrical charges on the plates situated around the beam. These varying electrical charges are supplied by the signal. So the oscilloscope simply displays the effect of the input signal on the electron beam (as seen in the trace on the screen). It does not change the signal.

AM
 

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