[Elecraft] Single-crystal phase noise considerations?

[Wayne Burdick]

Hi Steve,

As you noted, the phase noise performance should only improve as a result of
going to one crystal. There are many factors besides the PLL reference
oscillator that contribute to phase noise, so my guess is that the noise plot
wouldn't change much if at all. We haven't retested it yet.

Of course the K2's phase noise is already extremely low relative to other transceivers.

73,
Wayne


Steven Gibbs wrote:
> 
> A question for K2 gurus ...
> 
> When using just one crystal in the PLL reference oscillator
> what improvement in the K2's phase noise performance (TX & RX)
> can be expected?
> 
> Without "de-Q", phase noise inherent in the crystal oscillator
> itself will no doubt be diminished, but is any improvement likely
> to be masked by jitter/noise derived from the PLL?