Which IC and SPECTRE versions are you using (please give the subversions - the IC version is in Help->About, and the Spectre version is at the top of the spectre.out file when you run from ADE)? In current versions noisefmin defaults to 1Hz so you don't have to set it. In practice though you won't see the effect of low frequency noise unless you run a simulation for at least one period of that low frequency noise (even then you're not really going to see the effect with only a single period). So it doesn't really do any harm if the inverse of noisefmin exceeds the stop time - it just won't be observable. Regards, Andrew.
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