I am trying to understand the difference I am seeing in voltage signals, that I am applying to my circuit's input.
So the basic layout is shown in the diagram, I have a connection, A from my function generator that I split and connects to B the oscilloscope and D my circuit input. I also have a probe from the oscilloscope C, connected to the input for the circuit at D.
What I expected is that the signal measured at both the inputs for the oscilloscope should be the same, as they all connect to the same point in the end D, and are grounded. But what I see is this
The connection from the function generator to the scope displays some oscillation while the probe from C is smoother.
I do not understand why. I am hoping someone could explain what is happening, is there some inductance from the length of the cable between the circuit, function generator and oscilloscope, or possible reflection from the input of the circuit or combination of both that may be causing this?