Clarification regarding AM & PM component simulation in PNOISE (particularly for Oscillator)

Dear All,

I  simulated a simple LC oscillator noise ( PSS+PNOISE) at the oscillator output ( IC5141, .sub-version  12.1.0.402.isr5).

I have also saw  the topic "Explain the differences between the 4 noisetype settings for pnoise". But it could not answer what I want.

I used Shooting Method for PSS. I actually wanted to find the AM Noise & PM noise component separately. For total output noise I used PSS+PNOISE analysis. The noise power in db10 looks ok as it is matching the analysis. And it is a Single Sided PSD.

I have attached the waveform of it as Total-Noise.png

However, when I tried to plot AM noise component and PM Noise component separately I faced a really horrible experience. It is really confusing !!

Could anybody please clarify the following. It will be really helpful not only for me but also for many other designers.

1:-

First of all the plot form format in pnoise -source-modulated is very different form.

    a) Power is being plotted in absolute value?   why not in db10 like Pnoise ( is it because of IC5141 )

    b) dBV option is there unlike PNOISE form. Why ?

    c) USB, LSB, AM & PM

     What is USB:-

     is it total noise (AM+PM) in Fcenter + Fif   ?  ( is it Single sided or double sided PSD )

     What is LSB :-

     is it total noise in Fcenter - Fif   ?  ( is it Single sided or double sided PSD )

     What is AM:-

     Is it only AM noise component ?

    is it ( Single-Sided or Double Sided PSD ) As there is dbV I suspect it is all Single Sided PSD )  ?

    is it possible to plot AM Noise in Fcenter + Fif band & Fcenter - Fif band ?

 What is PM:-

  Is it only PM noise component ?

  Is it ( Single-Sided or Double Sided PSD ) ?

  Is it possible to plot AM Noise in Fcenter + Fif band & Fcenter - Fif band ?

2:-

When I plotted the AM noise ( I have captured it in the figure as AM-Noise_dBV.png ), It didn't match the analysis in the lower frequncy range.  I plotted in dBV as when I Plotted it gives me -ve value also  below 1MHz ( attached as AM-Noise-Power.png).

Beyond 10MHz it was matching with analysis. Also I am finding a NOTCH in the AM-PSD why is this ?

3:- 

When I plotted the PM noise  ( I have captured it in the figure as PM-Noise_dBV.png ), itis exactly folllowing the total -power as drawn in pnoise analysis but with around 3-dB less

 Kind Regards,