I am using LTspice on the circuit EMI spectrum study. Let's say I have two waveforms for V1 and V2. I wonder if in LTspice, I can plot the FFT results for :
(2) FFT(V1) and FFT(V2) on the same figure
I tried but it does not seem LTspice support these functions. Could anyone help me with LTspice? Thanks for help!
I'm sure there's more than one way to approach this, but I had success using an arbitrary behavioral voltage source (bv) to add the voltage of two nodes. I also didn't have any trouble adding more than one node to an FFT plot. By default, they were all overlaid on top of each other, but I was able to split the up by adding plot planes and dragging the curves to individual plot planes: