Hi,

I made phase noise measurements (using opt. 226) of my generator around 100MHz. PSA internal phase noise is described in data sheet, but for CF=1GHz. How to rescale these values for 100MHz? I think, that for N times lower CF phase noise is 10*log(N^2) dB lower, but I'm not sure.

I made phase noise measurements (using opt. 226) of my generator around 100MHz. PSA internal phase noise is described in data sheet, but for CF=1GHz. How to rescale these values for 100MHz? I think, that for N times lower CF phase noise is 10*log(N^2) dB lower, but I'm not sure.

At 100 MHz as well as 1 GHz, PSA uses the fundamental LO frequency, and N=1 so the phase noise specification will remain the same.

Thanks,

Dipti