Assuming that phase noise is coming from the VCO, shouldn't matter if the
divide is happening in your SDR divide-by-for or in the Si5351's output
fractional divider.
--------------------------------------------
On Sun, 4/2/17, DD4WH <dd4wh.swl@xxxxxxxxx> wrote:
Also, I believe that LO phase noise problems are
overrated in
homebrewing, as we can experience when we use the
Si5351 which has
higher phase noise that the Si570, but nonetheless
gives very
nice performance (however I use it in IQ-SDRs where
the phase
noise is divided by 4 by the QSD).
