VCO jitter simulation noise type and where to choose the osc_version and noiseout when running pnoise

Hello all,

I am trying to simulate the jitter of a VCO. I tried to use "noise type"  as "jitter-FM", or "modulated", and it doesn't work. Here is the error:

ERROR (SPCRTRF-15405): 'noisetype=correlations' is not supported for 'osc_version=dts'. Try:
            (1) set 'osc_version=dts' and 'noiseout=[am pm]' to get AM/PM noise, or,
            (2) set 'osc_version=augmented' to get correlations results.
        'osc_version=augmented' is obsolete and 'osc_version=dts' is recommended.

I tried to include "noiseout=[0 1]' in the "additional parameters" under "option", but it is giving the same result.

In addition, should I be using PM or FM jitter, what are the difference?

Thanks.

BR

CHEN