#### EMfox

##### Junior Member level 1

Here is how I have been doing:

1. run the transient simulation for a while

2. compute the spetrum of the output signal using FFT, and plot it in dB

3. read the power density (dB) at a given offset frequency from the first harmonic (ω0±10MHz), and substract the power density at ω0. And I think this is the phase noise expressed in "dB with respect to the carrier"

I don't know if this is correct. Please advise me if I am wrong.

Thank you!