Good Day? John?
I am a simple soul? ( BTW maybe we are both Brits )
If one conducts an FFT on a pure sinewave in theory there should be a single spike of infinite height and zero width.? The more the spike departs from those unattainable ideals shows the accuracy of the process.?
What I have seen in LTPSPICE is far off and essentially useless?
I hope to be shown the errors of my ways