maximum sideband setting in spectrerf psp and pnoise analysis

What number should be set for maximum sideband for psp or pnoise analysis?

All the noise computations in PSP involve noise folding effects. The
maxsideband parameter specifies the maximum sideband included
for summing noise contributions either up-converted or downconverted
to the output at the interested frequency. The contribution
of the noise source to the output is modulated by the periodic
transfer function. Modulation with a periodic transfer function is
convolution with the discrete spectrum of the transfer function.
Maxsideband specifies the number of sidebands to be involved in
this calculation.

Reference: http://w2.cadence.com/whitepapers/pspapn1.pdf
http://w2.cadence.com/whitepapers/pspapn1.pdf

So it depends on the beat frequency in your setting and the interested sidebands of the circuits. A resonable number is required.