[Elecraft] Why is KX3 phase noise so much less than the K3 ?

[Fred Jensen]

I think Bill's question spoke to phase-noise on receive, not transmit. 
I'm fairly certain all of us are aware of the transmit problem from some 
transceivers.

To Bill's question, I'd say "No," I cannot hear the difference when the 
measured noise is in the -135to -140 range, other noise sources totally 
mask it for me.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2014 Cal QSO Party 4-5 Oct 2014
- www.cqp.org

On 4/2/2014 8:06 AM, Matt Zilmer wrote:

> On the same band, any of the Y/K/I rigs will create so much wideband
> [phase] noise on transmit that none of the other rigs are usable on
> receive.  Transmit on the K3 and all the other rigs are usable on
> receive (same band, mind you).  No BPF required in this case.