Simple $\sin(2\pi 1000t)$ Fourier transform in PSpice not behaving as expected So I have this very basic circuit show below which I am simulating with PSpice.



Now, when doing the Fourier transform of $\cos(2\omega1000t)$, I expect to see two impulses(one at -1kHz and one at 1kHz), at half the amplitude of the cosine. The simulated results, however, shows the impulse at 1kHz with an amplitude of just below 1V. This is shown below:



My question is, why is this the case? Why is the amplitude not 500mV? I'm probably just missing something trivial.

Thanks in advance!

(Side note - why is there no pspice tag? Is this the correct form to post this question?)
PSPICE is showing the "Double Sided" Spectrum with the assumption (as it is) of a real signal. This means the spectrum is positive frequency axis only and the result will be double of what you would expect to see with a "Single Sided" Spectrum, basically matching the amplitude of the sinusoidal component represented.